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Groups > linux.kernel > #1605110 > unrolled thread
| Started by | Andi Kleen <andi@firstfloor.org> |
|---|---|
| First post | 2017-03-20 21:20 +0100 |
| Last post | 2017-03-21 21:00 +0100 |
| Articles | 20 on this page of 28 — 5 participants |
Back to article view | Back to linux.kernel
perf: Improve support for uncore JSON event lists Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:20 +0100
[PATCH 12/13] perf, tools: Add support for MetricName JSON attribute Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:20 +0100
[tip:perf/core] perf pmu: Add support for MetricName JSON attribute tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
[PATCH 03/13] perf, tools, stat: Handle partially bad results with merging Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:20 +0100
[tip:perf/core] perf stat: Handle partially bad results with merging tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 19:50 +0100
[PATCH 04/13] perf, tools: Factor out PMU matching in parser Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:20 +0100
[tip:perf/core] perf tools: Factor out PMU matching in parser tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
[PATCH 02/13] perf, tools, stat: Collapse identically named events Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:30 +0100
[tip:perf/core] perf stat: Collapse identically named events tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
[PATCH 01/13] perf, tools, stat: Factor out callback for collecting event values Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:30 +0100
[tip:perf/core] perf stat: Factor out callback for collecting event values tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 19:50 +0100
[PATCH 06/13] perf, tools: Special case uncore_ prefix Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:30 +0100
[tip:perf/core] perf pmu: Special case uncore_ prefix tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
[PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:30 +0100
Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric Jiri Olsa <jolsa@redhat.com> - 2017-03-21 15:50 +0100
Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric Andi Kleen <andi@firstfloor.org> - 2017-03-21 16:50 +0100
Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-21 20:50 +0100
Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric Andi Kleen <ak@linux.intel.com> - 2017-03-21 21:00 +0100
[tip:perf/core] perf stat: Output JSON MetricExpr metric tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
[PATCH 13/13] perf, tools, list: Move extra details printing to new option Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:30 +0100
[tip:perf/core] perf list: Move extra details printing to new option tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
[PATCH 07/13] perf, tools: Add a simple expression parser for JSON Andi Kleen <andi@firstfloor.org> - 2017-03-20 21:30 +0100
Re: [PATCH 07/13] perf, tools: Add a simple expression parser for JSON Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-21 20:20 +0100
Re: [PATCH 07/13] perf, tools: Add a simple expression parser for JSON Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-21 20:20 +0100
Build errors, was Re: [PATCH 07/13] perf, tools: Add a simple expression parser for JSON Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-21 23:10 +0100
[tip:perf/core] perf tools: Add a simple expression parser for JSON tip-bot for Andi Kleen <tipbot@zytor.com> - 2017-03-24 20:00 +0100
Re: perf: Improve support for uncore JSON event lists Jiri Olsa <jolsa@redhat.com> - 2017-03-21 15:50 +0100
Re: perf: Improve support for uncore JSON event lists Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-21 21:00 +0100
Page 1 of 2 [1] 2 Next page →
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:20 +0100 |
| Subject | perf: Improve support for uncore JSON event lists |
| Message-ID | <tnbWy-1r6-19@gated-at.bofh.it> |
This patch kit further improves support for Intel uncore events in the Linux perf user tool. The basic support has been already merged earlier, but this makes it nicer to use. - Collapse counts from duplicated boxes to make the output easier to read. - Support specifying events for multiple duplicated boxes in an abbreviated format to shorten event specifiers - Add support for computing Metrics defined in the event lists, so that the event lists can extend the metrics in perf stat. This allows to represent many events in an easier to understand format. Available from git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc.git perf/builtin-json-30 v1: Initial post after being split off to own patchkit Adding MetricName support and support for more than two events in expressions. v2: Address review comments. Move new hunk from refactor patchkit to patch adding new features. Improve changelogs slightly. v3: Rebased on latest tip tree. Split some patches based on review feedback. Add event list changes for MetricName Move extra printing in perf list to new option Improve descriptions Cleanups based on code review. v4: Use perf_evsel__cpus in refactoring Avoid multiple warning messages for missing metric events. Rebase on latest tip
[toc] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:20 +0100 |
| Subject | [PATCH 12/13] perf, tools: Add support for MetricName JSON attribute |
| Message-ID | <tnbWy-1r6-27@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
Add support for a new JSON event attribute to name MetricExpr for better output
in perf stat.
If the event has no MetricName it uses the normal event name instead to describe
the metric.
Before
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
time unc_p_freq_max_os_cycles
1.000149775 15.7
2.000344807 19.3
3.000502544 16.7
4.000640656 6.6
5.000779955 9.9
After
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
time freq_max_os_cycles %
1.000149775 15.7
2.000344807 19.3
3.000502544 16.7
4.000640656 6.6
5.000779955 9.9
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/pmu-events/jevents.c | 14 +++++++++++---
tools/perf/pmu-events/jevents.h | 3 ++-
tools/perf/pmu-events/pmu-events.h | 1 +
tools/perf/util/evsel.c | 1 +
tools/perf/util/evsel.h | 1 +
tools/perf/util/parse-events.c | 1 +
tools/perf/util/pmu.c | 15 ++++++++++++---
tools/perf/util/pmu.h | 2 ++
tools/perf/util/stat-shadow.c | 4 +++-
9 files changed, 34 insertions(+), 8 deletions(-)
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 0735dc2a167a..81f2ef3b15cf 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -292,7 +292,8 @@ static void print_events_table_prefix(FILE *fp, const char *tblname)
static int print_events_table_entry(void *data, char *name, char *event,
char *desc, char *long_desc,
char *pmu, char *unit, char *perpkg,
- char *metric_expr)
+ char *metric_expr,
+ char *metric_name)
{
struct perf_entry_data *pd = data;
FILE *outfp = pd->outfp;
@@ -318,6 +319,8 @@ static int print_events_table_entry(void *data, char *name, char *event,
fprintf(outfp, "\t.perpkg = \"%s\",\n", perpkg);
if (metric_expr)
fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
+ if (metric_name)
+ fprintf(outfp, "\t.metric_name = \"%s\",\n", metric_name);
fprintf(outfp, "},\n");
return 0;
@@ -366,7 +369,8 @@ int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
char *pmu, char *unit, char *perpkg,
- char *metric_expr),
+ char *metric_expr,
+ char *metric_name),
void *data)
{
int err = -EIO;
@@ -393,6 +397,7 @@ int json_events(const char *fn,
char *perpkg = NULL;
char *unit = NULL;
char *metric_expr = NULL;
+ char *metric_name = NULL;
unsigned long long eventcode = 0;
struct msrmap *msr = NULL;
jsmntok_t *msrval = NULL;
@@ -469,6 +474,8 @@ int json_events(const char *fn,
addfield(map, &unit, "", "", val);
} else if (json_streq(map, field, "PerPkg")) {
addfield(map, &perpkg, "", "", val);
+ } else if (json_streq(map, field, "MetricName")) {
+ addfield(map, &metric_name, "", "", val);
} else if (json_streq(map, field, "MetricExpr")) {
addfield(map, &metric_expr, "", "", val);
for (s = metric_expr; *s; s++)
@@ -497,7 +504,7 @@ int json_events(const char *fn,
fixname(name);
err = func(data, name, real_event(name, event), desc, long_desc,
- pmu, unit, perpkg, metric_expr);
+ pmu, unit, perpkg, metric_expr, metric_name);
free(event);
free(desc);
free(name);
@@ -508,6 +515,7 @@ int json_events(const char *fn,
free(perpkg);
free(unit);
free(metric_expr);
+ free(metric_name);
if (err)
break;
tok += j;
diff --git a/tools/perf/pmu-events/jevents.h b/tools/perf/pmu-events/jevents.h
index 57e111bf2168..611fac01913d 100644
--- a/tools/perf/pmu-events/jevents.h
+++ b/tools/perf/pmu-events/jevents.h
@@ -5,7 +5,8 @@ int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
char *pmu,
- char *unit, char *perpkg, char *metric_expr),
+ char *unit, char *perpkg, char *metric_expr,
+ char *metric_name),
void *data);
char *get_cpu_str(void);
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index d046e3a4ce46..569eab3688dd 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -14,6 +14,7 @@ struct pmu_event {
const char *unit;
const char *perpkg;
const char *metric_expr;
+ const char *metric_name;
};
/*
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index ef2a31f6dd06..9dc7e2d6e48a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -237,6 +237,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
perf_evsel__calc_id_pos(evsel);
evsel->cmdline_group_boundary = false;
evsel->metric_expr = NULL;
+ evsel->metric_name = NULL;
evsel->metric_events = NULL;
evsel->collect_stat = false;
}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 8f1f61826fdf..d101695c482c 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -133,6 +133,7 @@ struct perf_evsel {
int bpf_fd;
bool merged_stat;
const char * metric_expr;
+ const char * metric_name;
struct perf_evsel **metric_events;
bool collect_stat;
};
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 91b8e83e307d..119eb0b65876 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1256,6 +1256,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
evsel->per_pkg = info.per_pkg;
evsel->snapshot = info.snapshot;
evsel->metric_expr = info.metric_expr;
+ evsel->metric_name = info.metric_name;
}
return evsel ? 0 : -ENOMEM;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f819ad162b7c..bcf752fa345b 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -232,7 +232,8 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
char *desc, char *val,
char *long_desc, char *topic,
char *unit, char *perpkg,
- char *metric_expr)
+ char *metric_expr,
+ char *metric_name)
{
struct perf_pmu_alias *alias;
int ret;
@@ -267,6 +268,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
}
alias->metric_expr = metric_expr ? strdup(metric_expr) : NULL;
+ alias->metric_name = metric_name ? strdup(metric_name): NULL;
alias->desc = desc ? strdup(desc) : NULL;
alias->long_desc = long_desc ? strdup(long_desc) :
desc ? strdup(desc) : NULL;
@@ -296,7 +298,7 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI
buf[ret] = 0;
return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL, NULL,
- NULL, NULL);
+ NULL, NULL, NULL);
}
static inline bool pmu_alias_info_file(char *name)
@@ -567,7 +569,8 @@ static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
(char *)pe->desc, (char *)pe->event,
(char *)pe->long_desc, (char *)pe->topic,
(char *)pe->unit, (char *)pe->perpkg,
- (char *)pe->metric_expr);
+ (char *)pe->metric_expr,
+ (char *)pe->metric_name);
}
out:
@@ -995,6 +998,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
info->scale = 0.0;
info->snapshot = false;
info->metric_expr = NULL;
+ info->metric_name = NULL;
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
@@ -1011,6 +1015,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
if (alias->per_pkg)
info->per_pkg = true;
info->metric_expr = alias->metric_expr;
+ info->metric_name = alias->metric_name;
list_del(&term->list);
free(term);
@@ -1106,6 +1111,7 @@ struct sevent {
char *str;
char *pmu;
char *metric_expr;
+ char *metric_name;
};
static int cmp_sevent(const void *a, const void *b)
@@ -1205,6 +1211,7 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
aliases[j].str = alias->str;
aliases[j].pmu = pmu->name;
aliases[j].metric_expr = alias->metric_expr;
+ aliases[j].metric_name = alias->metric_name;
j++;
}
if (pmu->selectable &&
@@ -1241,6 +1248,8 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
printf("]\n");
if (verbose > 0) {
printf("%*s%s/%s/ ", 8, "", aliases[j].pmu, aliases[j].str);
+ if (aliases[j].metric_name)
+ printf(" MetricName: %s", aliases[j].metric_name);
if (aliases[j].metric_expr)
printf(" MetricExpr: %s", aliases[j].metric_expr);
putchar('\n');
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 27f078ccc594..3d4b703f5d89 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -32,6 +32,7 @@ struct perf_pmu {
struct perf_pmu_info {
const char *unit;
const char *metric_expr;
+ const char *metric_name;
double scale;
bool per_pkg;
bool snapshot;
@@ -52,6 +53,7 @@ struct perf_pmu_alias {
bool per_pkg;
bool snapshot;
char *metric_expr;
+ char *metric_name;
};
struct perf_pmu *perf_pmu__find(const char *name);
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index c323cce97d98..ac10cc675d39 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -803,7 +803,9 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
if (expr__parse(&ratio, &pctx, &p) == 0)
print_metric(ctxp, NULL, "%8.1f",
- out->force_header ? evsel->name : "",
+ evsel->metric_name ?
+ evsel->metric_name :
+ out->force_header ? evsel->name : "",
ratio);
else
print_metric(ctxp, NULL, NULL, "", 0);
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 20:00 +0100 |
| Subject | [tip:perf/core] perf pmu: Add support for MetricName JSON attribute |
| Message-ID | <toCBk-5D8-35@gated-at.bofh.it> |
| In reply to | #1605111 |
Commit-ID: 962848142335e8b35d522be78f58f2011d976b17
Gitweb: http://git.kernel.org/tip/962848142335e8b35d522be78f58f2011d976b17
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:17:10 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 23 Mar 2017 11:42:31 -0300
perf pmu: Add support for MetricName JSON attribute
Add support for a new JSON event attribute to name MetricExpr for better
output in perf stat.
If the event has no MetricName it uses the normal event name instead to
describe the metric.
Before
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
time unc_p_freq_max_os_cycles
1.000149775 15.7
2.000344807 19.3
3.000502544 16.7
4.000640656 6.6
5.000779955 9.9
After
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
time freq_max_os_cycles %
1.000149775 15.7
2.000344807 19.3
3.000502544 16.7
4.000640656 6.6
5.000779955 9.9
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-13-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/pmu-events/jevents.c | 14 +++++++++++---
tools/perf/pmu-events/jevents.h | 3 ++-
tools/perf/pmu-events/pmu-events.h | 1 +
tools/perf/util/evsel.c | 1 +
tools/perf/util/evsel.h | 1 +
tools/perf/util/parse-events.c | 1 +
tools/perf/util/pmu.c | 15 ++++++++++++---
tools/perf/util/pmu.h | 2 ++
tools/perf/util/stat-shadow.c | 4 +++-
9 files changed, 34 insertions(+), 8 deletions(-)
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 0735dc2..81f2ef3 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -292,7 +292,8 @@ static void print_events_table_prefix(FILE *fp, const char *tblname)
static int print_events_table_entry(void *data, char *name, char *event,
char *desc, char *long_desc,
char *pmu, char *unit, char *perpkg,
- char *metric_expr)
+ char *metric_expr,
+ char *metric_name)
{
struct perf_entry_data *pd = data;
FILE *outfp = pd->outfp;
@@ -318,6 +319,8 @@ static int print_events_table_entry(void *data, char *name, char *event,
fprintf(outfp, "\t.perpkg = \"%s\",\n", perpkg);
if (metric_expr)
fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
+ if (metric_name)
+ fprintf(outfp, "\t.metric_name = \"%s\",\n", metric_name);
fprintf(outfp, "},\n");
return 0;
@@ -366,7 +369,8 @@ int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
char *pmu, char *unit, char *perpkg,
- char *metric_expr),
+ char *metric_expr,
+ char *metric_name),
void *data)
{
int err = -EIO;
@@ -393,6 +397,7 @@ int json_events(const char *fn,
char *perpkg = NULL;
char *unit = NULL;
char *metric_expr = NULL;
+ char *metric_name = NULL;
unsigned long long eventcode = 0;
struct msrmap *msr = NULL;
jsmntok_t *msrval = NULL;
@@ -469,6 +474,8 @@ int json_events(const char *fn,
addfield(map, &unit, "", "", val);
} else if (json_streq(map, field, "PerPkg")) {
addfield(map, &perpkg, "", "", val);
+ } else if (json_streq(map, field, "MetricName")) {
+ addfield(map, &metric_name, "", "", val);
} else if (json_streq(map, field, "MetricExpr")) {
addfield(map, &metric_expr, "", "", val);
for (s = metric_expr; *s; s++)
@@ -497,7 +504,7 @@ int json_events(const char *fn,
fixname(name);
err = func(data, name, real_event(name, event), desc, long_desc,
- pmu, unit, perpkg, metric_expr);
+ pmu, unit, perpkg, metric_expr, metric_name);
free(event);
free(desc);
free(name);
@@ -508,6 +515,7 @@ int json_events(const char *fn,
free(perpkg);
free(unit);
free(metric_expr);
+ free(metric_name);
if (err)
break;
tok += j;
diff --git a/tools/perf/pmu-events/jevents.h b/tools/perf/pmu-events/jevents.h
index 57e111bf..611fac0 100644
--- a/tools/perf/pmu-events/jevents.h
+++ b/tools/perf/pmu-events/jevents.h
@@ -5,7 +5,8 @@ int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
char *pmu,
- char *unit, char *perpkg, char *metric_expr),
+ char *unit, char *perpkg, char *metric_expr,
+ char *metric_name),
void *data);
char *get_cpu_str(void);
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index d046e3a..569eab3 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -14,6 +14,7 @@ struct pmu_event {
const char *unit;
const char *perpkg;
const char *metric_expr;
+ const char *metric_name;
};
/*
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index ef2a31f..9dc7e2d 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -237,6 +237,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
perf_evsel__calc_id_pos(evsel);
evsel->cmdline_group_boundary = false;
evsel->metric_expr = NULL;
+ evsel->metric_name = NULL;
evsel->metric_events = NULL;
evsel->collect_stat = false;
}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 8f1f618..d101695 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -133,6 +133,7 @@ struct perf_evsel {
int bpf_fd;
bool merged_stat;
const char * metric_expr;
+ const char * metric_name;
struct perf_evsel **metric_events;
bool collect_stat;
};
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 91b8e83..119eb0b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1256,6 +1256,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
evsel->per_pkg = info.per_pkg;
evsel->snapshot = info.snapshot;
evsel->metric_expr = info.metric_expr;
+ evsel->metric_name = info.metric_name;
}
return evsel ? 0 : -ENOMEM;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index f819ad1..bcf752f 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -232,7 +232,8 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
char *desc, char *val,
char *long_desc, char *topic,
char *unit, char *perpkg,
- char *metric_expr)
+ char *metric_expr,
+ char *metric_name)
{
struct perf_pmu_alias *alias;
int ret;
@@ -267,6 +268,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
}
alias->metric_expr = metric_expr ? strdup(metric_expr) : NULL;
+ alias->metric_name = metric_name ? strdup(metric_name): NULL;
alias->desc = desc ? strdup(desc) : NULL;
alias->long_desc = long_desc ? strdup(long_desc) :
desc ? strdup(desc) : NULL;
@@ -296,7 +298,7 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI
buf[ret] = 0;
return __perf_pmu__new_alias(list, dir, name, NULL, buf, NULL, NULL, NULL,
- NULL, NULL);
+ NULL, NULL, NULL);
}
static inline bool pmu_alias_info_file(char *name)
@@ -567,7 +569,8 @@ static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
(char *)pe->desc, (char *)pe->event,
(char *)pe->long_desc, (char *)pe->topic,
(char *)pe->unit, (char *)pe->perpkg,
- (char *)pe->metric_expr);
+ (char *)pe->metric_expr,
+ (char *)pe->metric_name);
}
out:
@@ -995,6 +998,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
info->scale = 0.0;
info->snapshot = false;
info->metric_expr = NULL;
+ info->metric_name = NULL;
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
@@ -1011,6 +1015,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
if (alias->per_pkg)
info->per_pkg = true;
info->metric_expr = alias->metric_expr;
+ info->metric_name = alias->metric_name;
list_del(&term->list);
free(term);
@@ -1106,6 +1111,7 @@ struct sevent {
char *str;
char *pmu;
char *metric_expr;
+ char *metric_name;
};
static int cmp_sevent(const void *a, const void *b)
@@ -1205,6 +1211,7 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
aliases[j].str = alias->str;
aliases[j].pmu = pmu->name;
aliases[j].metric_expr = alias->metric_expr;
+ aliases[j].metric_name = alias->metric_name;
j++;
}
if (pmu->selectable &&
@@ -1241,6 +1248,8 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
printf("]\n");
if (verbose > 0) {
printf("%*s%s/%s/ ", 8, "", aliases[j].pmu, aliases[j].str);
+ if (aliases[j].metric_name)
+ printf(" MetricName: %s", aliases[j].metric_name);
if (aliases[j].metric_expr)
printf(" MetricExpr: %s", aliases[j].metric_expr);
putchar('\n');
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 27f078c..3d4b703 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -32,6 +32,7 @@ struct perf_pmu {
struct perf_pmu_info {
const char *unit;
const char *metric_expr;
+ const char *metric_name;
double scale;
bool per_pkg;
bool snapshot;
@@ -52,6 +53,7 @@ struct perf_pmu_alias {
bool per_pkg;
bool snapshot;
char *metric_expr;
+ char *metric_name;
};
struct perf_pmu *perf_pmu__find(const char *name);
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index c323cce..ac10cc6 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -803,7 +803,9 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
if (expr__parse(&ratio, &pctx, &p) == 0)
print_metric(ctxp, NULL, "%8.1f",
- out->force_header ? evsel->name : "",
+ evsel->metric_name ?
+ evsel->metric_name :
+ out->force_header ? evsel->name : "",
ratio);
else
print_metric(ctxp, NULL, NULL, "", 0);
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:20 +0100 |
| Subject | [PATCH 03/13] perf, tools, stat: Handle partially bad results with merging |
| Message-ID | <tnbWy-1r6-25@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
When any result that is being merged is bad, mark them all
bad to give consistent output in interval mode.
No before/after, because the issue was only found in theoretical
review and it is hard to reproduce
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/builtin-stat.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a4da10a506dd..cd7dc3b648ca 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1237,6 +1237,16 @@ static void aggr_cb(struct perf_evsel *counter, void *data, bool first)
if (first)
ad->nr++;
counts = perf_counts(counter->counts, cpu, 0);
+ /*
+ * When any result is bad, make them all to give
+ * consistent output in interval mode.
+ */
+ if (counts->ena == 0 || counts->run == 0 ||
+ counter->counts->scaled == -1) {
+ ad->ena = 0;
+ ad->run = 0;
+ break;
+ }
ad->val += counts->val;
ad->ena += counts->ena;
ad->run += counts->run;
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 19:50 +0100 |
| Subject | [tip:perf/core] perf stat: Handle partially bad results with merging |
| Message-ID | <toCrD-5z0-5@gated-at.bofh.it> |
| In reply to | #1605112 |
Commit-ID: b4229e9d4cac2295f8f04ec26acd571a391c6c37
Gitweb: http://git.kernel.org/tip/b4229e9d4cac2295f8f04ec26acd571a391c6c37
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:17:01 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 21 Mar 2017 16:07:00 -0300
perf stat: Handle partially bad results with merging
When any result that is being merged is bad, mark them all bad to give
consistent output in interval mode.
No before/after, because the issue was only found in theoretical review
and it is hard to reproduce
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-4-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a4da10a..cd7dc3b 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1237,6 +1237,16 @@ static void aggr_cb(struct perf_evsel *counter, void *data, bool first)
if (first)
ad->nr++;
counts = perf_counts(counter->counts, cpu, 0);
+ /*
+ * When any result is bad, make them all to give
+ * consistent output in interval mode.
+ */
+ if (counts->ena == 0 || counts->run == 0 ||
+ counter->counts->scaled == -1) {
+ ad->ena = 0;
+ ad->run = 0;
+ break;
+ }
ad->val += counts->val;
ad->ena += counts->ena;
ad->run += counts->run;
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:20 +0100 |
| Subject | [PATCH 04/13] perf, tools: Factor out PMU matching in parser |
| Message-ID | <tnbWz-1r6-35@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
Factor out the PMU name matching in the event parser into a separate function,
to use the same code for other grammar rules later.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/util/parse-events.c | 46 ++++++++++++++++++++++++++++++++++++++++++
tools/perf/util/parse-events.h | 5 +++++
tools/perf/util/parse-events.y | 30 +--------------------------
3 files changed, 52 insertions(+), 29 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 54355d3caf09..c3edb373ed86 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1260,6 +1260,52 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
return evsel ? 0 : -ENOMEM;
}
+int parse_events_multi_pmu_add(struct parse_events_evlist *data,
+ char *str, struct list_head **listp)
+{
+ struct list_head *head;
+ struct parse_events_term *term;
+ struct list_head *list;
+ struct perf_pmu *pmu = NULL;
+ int ok = 0;
+
+ *listp = NULL;
+ /* Add it for all PMUs that support the alias */
+ list = malloc(sizeof(struct list_head));
+ if (!list)
+ return -1;
+ INIT_LIST_HEAD(list);
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ struct perf_pmu_alias *alias;
+
+ list_for_each_entry(alias, &pmu->aliases, list) {
+ if (!strcasecmp(alias->name, str)) {
+ head = malloc(sizeof(struct list_head));
+ if (!head)
+ return -1;
+ INIT_LIST_HEAD(head);
+ if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ str, 1, false, &str, NULL) < 0)
+ return -1;
+ list_add_tail(&term->list, head);
+
+ if (!parse_events_add_pmu(data, list,
+ pmu->name, head)) {
+ pr_debug("%s -> %s/%s/\n", str,
+ pmu->name, alias->str);
+ ok++;
+ }
+
+ parse_events_terms__delete(head);
+ }
+ }
+ }
+ if (!ok)
+ return -1;
+ *listp = list;
+ return 0;
+}
+
int parse_events__modifier_group(struct list_head *list,
char *event_mod)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 8c72b0ff7fcb..deca9ce965a7 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -167,6 +167,11 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
int parse_events_add_pmu(struct parse_events_evlist *data,
struct list_head *list, char *name,
struct list_head *head_config);
+
+int parse_events_multi_pmu_add(struct parse_events_evlist *data,
+ char *str,
+ struct list_head **listp);
+
enum perf_pmu_event_symbol_type
perf_pmu__parse_check(const char *name);
void parse_events__set_leader(char *name, struct list_head *list);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 30f018ea1370..36af02f95243 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -236,37 +236,9 @@ PE_NAME opt_event_config
|
PE_KERNEL_PMU_EVENT sep_dc
{
- struct parse_events_evlist *data = _data;
- struct list_head *head;
- struct parse_events_term *term;
struct list_head *list;
- struct perf_pmu *pmu = NULL;
- int ok = 0;
- /* Add it for all PMUs that support the alias */
- ALLOC_LIST(list);
- while ((pmu = perf_pmu__scan(pmu)) != NULL) {
- struct perf_pmu_alias *alias;
-
- list_for_each_entry(alias, &pmu->aliases, list) {
- if (!strcasecmp(alias->name, $1)) {
- ALLOC_LIST(head);
- ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, 1, false, &@1, NULL));
- list_add_tail(&term->list, head);
-
- if (!parse_events_add_pmu(data, list,
- pmu->name, head)) {
- pr_debug("%s -> %s/%s/\n", $1,
- pmu->name, alias->str);
- ok++;
- }
-
- parse_events_terms__delete(head);
- }
- }
- }
- if (!ok)
+ if (parse_events_multi_pmu_add(_data, $1, &list) < 0)
YYABORT;
$$ = list;
}
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 20:00 +0100 |
| Subject | [tip:perf/core] perf tools: Factor out PMU matching in parser |
| Message-ID | <toCBj-5D8-9@gated-at.bofh.it> |
| In reply to | #1605114 |
Commit-ID: 2073ad3326b7e4577af3d6789edd03df79519d21
Gitweb: http://git.kernel.org/tip/2073ad3326b7e4577af3d6789edd03df79519d21
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:17:02 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 21 Mar 2017 16:07:40 -0300
perf tools: Factor out PMU matching in parser
Factor out the PMU name matching in the event parser into a separate
function, to use the same code for other grammar rules later.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-5-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/parse-events.c | 46 ++++++++++++++++++++++++++++++++++++++++++
tools/perf/util/parse-events.h | 5 +++++
tools/perf/util/parse-events.y | 30 +--------------------------
3 files changed, 52 insertions(+), 29 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 54355d3..c3edb37 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1260,6 +1260,52 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
return evsel ? 0 : -ENOMEM;
}
+int parse_events_multi_pmu_add(struct parse_events_evlist *data,
+ char *str, struct list_head **listp)
+{
+ struct list_head *head;
+ struct parse_events_term *term;
+ struct list_head *list;
+ struct perf_pmu *pmu = NULL;
+ int ok = 0;
+
+ *listp = NULL;
+ /* Add it for all PMUs that support the alias */
+ list = malloc(sizeof(struct list_head));
+ if (!list)
+ return -1;
+ INIT_LIST_HEAD(list);
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ struct perf_pmu_alias *alias;
+
+ list_for_each_entry(alias, &pmu->aliases, list) {
+ if (!strcasecmp(alias->name, str)) {
+ head = malloc(sizeof(struct list_head));
+ if (!head)
+ return -1;
+ INIT_LIST_HEAD(head);
+ if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ str, 1, false, &str, NULL) < 0)
+ return -1;
+ list_add_tail(&term->list, head);
+
+ if (!parse_events_add_pmu(data, list,
+ pmu->name, head)) {
+ pr_debug("%s -> %s/%s/\n", str,
+ pmu->name, alias->str);
+ ok++;
+ }
+
+ parse_events_terms__delete(head);
+ }
+ }
+ }
+ if (!ok)
+ return -1;
+ *listp = list;
+ return 0;
+}
+
int parse_events__modifier_group(struct list_head *list,
char *event_mod)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 8c72b0f..deca9ce 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -167,6 +167,11 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
int parse_events_add_pmu(struct parse_events_evlist *data,
struct list_head *list, char *name,
struct list_head *head_config);
+
+int parse_events_multi_pmu_add(struct parse_events_evlist *data,
+ char *str,
+ struct list_head **listp);
+
enum perf_pmu_event_symbol_type
perf_pmu__parse_check(const char *name);
void parse_events__set_leader(char *name, struct list_head *list);
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 30f018e..36af02f 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -236,37 +236,9 @@ PE_NAME opt_event_config
|
PE_KERNEL_PMU_EVENT sep_dc
{
- struct parse_events_evlist *data = _data;
- struct list_head *head;
- struct parse_events_term *term;
struct list_head *list;
- struct perf_pmu *pmu = NULL;
- int ok = 0;
- /* Add it for all PMUs that support the alias */
- ALLOC_LIST(list);
- while ((pmu = perf_pmu__scan(pmu)) != NULL) {
- struct perf_pmu_alias *alias;
-
- list_for_each_entry(alias, &pmu->aliases, list) {
- if (!strcasecmp(alias->name, $1)) {
- ALLOC_LIST(head);
- ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
- $1, 1, false, &@1, NULL));
- list_add_tail(&term->list, head);
-
- if (!parse_events_add_pmu(data, list,
- pmu->name, head)) {
- pr_debug("%s -> %s/%s/\n", $1,
- pmu->name, alias->str);
- ok++;
- }
-
- parse_events_terms__delete(head);
- }
- }
- }
- if (!ok)
+ if (parse_events_multi_pmu_add(_data, $1, &list) < 0)
YYABORT;
$$ = list;
}
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:30 +0100 |
| Subject | [PATCH 02/13] perf, tools, stat: Collapse identically named events |
| Message-ID | <tnc6e-1uQ-1@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
The uncore PMU has a lot of duplicated PMUs for different subsystems.
When expanding an uncore alias we usually end up with a large
number of identically named aliases, which makes perf stat
output difficult to read.
Automatically sum them up in perf stat, unless --no-merge is specified.
This can be default because only the uncores generally have duplicated
aliases. Other PMUs have unique names.
Before:
% perf stat --no-merge -a -e unc_c_llc_lookup.any sleep 1
Performance counter stats for 'system wide':
694,976 Bytes unc_c_llc_lookup.any
706,304 Bytes unc_c_llc_lookup.any
956,608 Bytes unc_c_llc_lookup.any
782,720 Bytes unc_c_llc_lookup.any
605,696 Bytes unc_c_llc_lookup.any
442,816 Bytes unc_c_llc_lookup.any
659,328 Bytes unc_c_llc_lookup.any
509,312 Bytes unc_c_llc_lookup.any
263,936 Bytes unc_c_llc_lookup.any
592,448 Bytes unc_c_llc_lookup.any
672,448 Bytes unc_c_llc_lookup.any
608,640 Bytes unc_c_llc_lookup.any
641,024 Bytes unc_c_llc_lookup.any
856,896 Bytes unc_c_llc_lookup.any
808,832 Bytes unc_c_llc_lookup.any
684,864 Bytes unc_c_llc_lookup.any
710,464 Bytes unc_c_llc_lookup.any
538,304 Bytes unc_c_llc_lookup.any
1.002577660 seconds time elapsed
After:
% perf stat -a -e unc_c_llc_lookup.any sleep 1
Performance counter stats for 'system wide':
2,685,120 Bytes unc_c_llc_lookup.any
1.002648032 seconds time elapsed
v2: Split collect_aliases. Rename alias flag.
v3: Make sure unsupported/not counted is always printed.
v4: Factor out callback change into separate patch.
v5: Move check for bad results here
Move merged check into collect_data
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/Documentation/perf-stat.txt | 3 +++
tools/perf/builtin-stat.c | 38 ++++++++++++++++++++++++++++++----
tools/perf/util/evsel.h | 1 +
3 files changed, 38 insertions(+), 4 deletions(-)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index aecf2a87e7d6..400634943251 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -237,6 +237,9 @@ To interpret the results it is usually needed to know on which
CPUs the workload runs on. If needed the CPUs can be forced using
taskset.
+--no-merge::
+Do not merge results from same PMUs.
+
EXAMPLES
--------
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 5c13a0f40adc..a4da10a506dd 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -140,6 +140,7 @@ static unsigned int unit_width = 4; /* strlen("unit") */
static bool forever = false;
static bool metric_only = false;
static bool force_metric_only = false;
+static bool no_merge = false;
static struct timespec ref_time;
static struct cpu_map *aggr_map;
static aggr_get_id_t aggr_get_id;
@@ -1182,12 +1183,37 @@ static void aggr_update_shadow(void)
}
}
-static void collect_data(struct perf_evsel *counter,
+static void collect_all_aliases(struct perf_evsel *counter,
void (*cb)(struct perf_evsel *counter, void *data,
bool first),
void *data)
{
+ struct perf_evsel *alias;
+
+ alias = list_prepare_entry(counter, &(evsel_list->entries), node);
+ list_for_each_entry_continue (alias, &evsel_list->entries, node) {
+ if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
+ alias->scale != counter->scale ||
+ alias->cgrp != counter->cgrp ||
+ strcmp(alias->unit, counter->unit) ||
+ nsec_counter(alias) != nsec_counter(counter))
+ break;
+ alias->merged_stat = true;
+ cb(alias, data, false);
+ }
+}
+
+static bool collect_data(struct perf_evsel *counter,
+ void (*cb)(struct perf_evsel *counter, void *data,
+ bool first),
+ void *data)
+{
+ if (counter->merged_stat)
+ return false;
cb(counter, data, true);
+ if (!no_merge)
+ collect_all_aliases(counter, cb, data);
+ return true;
}
struct aggr_data {
@@ -1245,7 +1271,8 @@ static void print_aggr(char *prefix)
evlist__for_each_entry(evsel_list, counter) {
ad.val = ad.ena = ad.run = 0;
ad.nr = 0;
- collect_data(counter, aggr_cb, &ad);
+ if (!collect_data(counter, aggr_cb, &ad))
+ continue;
nr = ad.nr;
ena = ad.ena;
run = ad.run;
@@ -1318,7 +1345,8 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
double uval;
struct caggr_data cd = { .avg = 0.0 };
- collect_data(counter, counter_aggr_cb, &cd);
+ if (!collect_data(counter, counter_aggr_cb, &cd))
+ return;
if (prefix && !metric_only)
fprintf(output, "%s", prefix);
@@ -1353,7 +1381,8 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
struct aggr_data ad = { .cpu = cpu };
- collect_data(counter, counter_cb, &ad);
+ if (!collect_data(counter, counter_cb, &ad))
+ return;
val = ad.val;
ena = ad.ena;
run = ad.run;
@@ -1701,6 +1730,7 @@ static const struct option stat_options[] = {
"list of cpus to monitor in system-wide"),
OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
"disable CPU count aggregation", AGGR_NONE),
+ OPT_BOOLEAN(0, "no-merge", &no_merge, "Do not merge identical named events"),
OPT_STRING('x', "field-separator", &csv_sep, "separator",
"print counts with custom separator"),
OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 06ef6f29efa1..bd2e9b112d49 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -131,6 +131,7 @@ struct perf_evsel {
bool cmdline_group_boundary;
struct list_head config_terms;
int bpf_fd;
+ bool merged_stat;
};
union u64_swap {
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 20:00 +0100 |
| Subject | [tip:perf/core] perf stat: Collapse identically named events |
| Message-ID | <toCBj-5D8-3@gated-at.bofh.it> |
| In reply to | #1605116 |
Commit-ID: 430daf2dc7aff16096a137347e6fd03d4af609e9
Gitweb: http://git.kernel.org/tip/430daf2dc7aff16096a137347e6fd03d4af609e9
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:17:00 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 21 Mar 2017 16:04:11 -0300
perf stat: Collapse identically named events
The uncore PMU has a lot of duplicated PMUs for different subsystems.
When expanding an uncore alias we usually end up with a large
number of identically named aliases, which makes perf stat
output difficult to read.
Automatically sum them up in perf stat, unless --no-merge is specified.
This can be default because only the uncores generally have duplicated
aliases. Other PMUs have unique names.
Before:
% perf stat --no-merge -a -e unc_c_llc_lookup.any sleep 1
Performance counter stats for 'system wide':
694,976 Bytes unc_c_llc_lookup.any
706,304 Bytes unc_c_llc_lookup.any
956,608 Bytes unc_c_llc_lookup.any
782,720 Bytes unc_c_llc_lookup.any
605,696 Bytes unc_c_llc_lookup.any
442,816 Bytes unc_c_llc_lookup.any
659,328 Bytes unc_c_llc_lookup.any
509,312 Bytes unc_c_llc_lookup.any
263,936 Bytes unc_c_llc_lookup.any
592,448 Bytes unc_c_llc_lookup.any
672,448 Bytes unc_c_llc_lookup.any
608,640 Bytes unc_c_llc_lookup.any
641,024 Bytes unc_c_llc_lookup.any
856,896 Bytes unc_c_llc_lookup.any
808,832 Bytes unc_c_llc_lookup.any
684,864 Bytes unc_c_llc_lookup.any
710,464 Bytes unc_c_llc_lookup.any
538,304 Bytes unc_c_llc_lookup.any
1.002577660 seconds time elapsed
After:
% perf stat -a -e unc_c_llc_lookup.any sleep 1
Performance counter stats for 'system wide':
2,685,120 Bytes unc_c_llc_lookup.any
1.002648032 seconds time elapsed
v2: Split collect_aliases. Rename alias flag.
v3: Make sure unsupported/not counted is always printed.
v4: Factor out callback change into separate patch.
v5: Move check for bad results here
Move merged check into collect_data
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-3-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-stat.txt | 3 +++
tools/perf/builtin-stat.c | 38 ++++++++++++++++++++++++++++++----
tools/perf/util/evsel.h | 1 +
3 files changed, 38 insertions(+), 4 deletions(-)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 9785481..bd0e441 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -236,6 +236,9 @@ To interpret the results it is usually needed to know on which
CPUs the workload runs on. If needed the CPUs can be forced using
taskset.
+--no-merge::
+Do not merge results from same PMUs.
+
EXAMPLES
--------
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 5c13a0f..a4da10a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -140,6 +140,7 @@ static unsigned int unit_width = 4; /* strlen("unit") */
static bool forever = false;
static bool metric_only = false;
static bool force_metric_only = false;
+static bool no_merge = false;
static struct timespec ref_time;
static struct cpu_map *aggr_map;
static aggr_get_id_t aggr_get_id;
@@ -1182,12 +1183,37 @@ static void aggr_update_shadow(void)
}
}
-static void collect_data(struct perf_evsel *counter,
+static void collect_all_aliases(struct perf_evsel *counter,
void (*cb)(struct perf_evsel *counter, void *data,
bool first),
void *data)
{
+ struct perf_evsel *alias;
+
+ alias = list_prepare_entry(counter, &(evsel_list->entries), node);
+ list_for_each_entry_continue (alias, &evsel_list->entries, node) {
+ if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
+ alias->scale != counter->scale ||
+ alias->cgrp != counter->cgrp ||
+ strcmp(alias->unit, counter->unit) ||
+ nsec_counter(alias) != nsec_counter(counter))
+ break;
+ alias->merged_stat = true;
+ cb(alias, data, false);
+ }
+}
+
+static bool collect_data(struct perf_evsel *counter,
+ void (*cb)(struct perf_evsel *counter, void *data,
+ bool first),
+ void *data)
+{
+ if (counter->merged_stat)
+ return false;
cb(counter, data, true);
+ if (!no_merge)
+ collect_all_aliases(counter, cb, data);
+ return true;
}
struct aggr_data {
@@ -1245,7 +1271,8 @@ static void print_aggr(char *prefix)
evlist__for_each_entry(evsel_list, counter) {
ad.val = ad.ena = ad.run = 0;
ad.nr = 0;
- collect_data(counter, aggr_cb, &ad);
+ if (!collect_data(counter, aggr_cb, &ad))
+ continue;
nr = ad.nr;
ena = ad.ena;
run = ad.run;
@@ -1318,7 +1345,8 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
double uval;
struct caggr_data cd = { .avg = 0.0 };
- collect_data(counter, counter_aggr_cb, &cd);
+ if (!collect_data(counter, counter_aggr_cb, &cd))
+ return;
if (prefix && !metric_only)
fprintf(output, "%s", prefix);
@@ -1353,7 +1381,8 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
struct aggr_data ad = { .cpu = cpu };
- collect_data(counter, counter_cb, &ad);
+ if (!collect_data(counter, counter_cb, &ad))
+ return;
val = ad.val;
ena = ad.ena;
run = ad.run;
@@ -1701,6 +1730,7 @@ static const struct option stat_options[] = {
"list of cpus to monitor in system-wide"),
OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
"disable CPU count aggregation", AGGR_NONE),
+ OPT_BOOLEAN(0, "no-merge", &no_merge, "Do not merge identical named events"),
OPT_STRING('x', "field-separator", &csv_sep, "separator",
"print counts with custom separator"),
OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 06ef6f2..bd2e9b1 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -131,6 +131,7 @@ struct perf_evsel {
bool cmdline_group_boundary;
struct list_head config_terms;
int bpf_fd;
+ bool merged_stat;
};
union u64_swap {
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:30 +0100 |
| Subject | [PATCH 01/13] perf, tools, stat: Factor out callback for collecting event values |
| Message-ID | <tnc6e-1uQ-5@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
To be used in next patch to support automatic summing of alias
events.
v2: Move check for bad results to next patch
v3: Remove trivial addition.
v4: Use perf_evsel__cpus instead of evsel->cpus
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/builtin-stat.c | 103 +++++++++++++++++++++++++++++++++++-----------
1 file changed, 80 insertions(+), 23 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f53f449d864d..5c13a0f40adc 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1182,11 +1182,46 @@ static void aggr_update_shadow(void)
}
}
+static void collect_data(struct perf_evsel *counter,
+ void (*cb)(struct perf_evsel *counter, void *data,
+ bool first),
+ void *data)
+{
+ cb(counter, data, true);
+}
+
+struct aggr_data {
+ u64 ena, run, val;
+ int id;
+ int nr;
+ int cpu;
+};
+
+static void aggr_cb(struct perf_evsel *counter, void *data, bool first)
+{
+ struct aggr_data *ad = data;
+ int cpu, s2;
+
+ for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
+ struct perf_counts_values *counts;
+
+ s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
+ if (s2 != ad->id)
+ continue;
+ if (first)
+ ad->nr++;
+ counts = perf_counts(counter->counts, cpu, 0);
+ ad->val += counts->val;
+ ad->ena += counts->ena;
+ ad->run += counts->run;
+ }
+}
+
static void print_aggr(char *prefix)
{
FILE *output = stat_config.output;
struct perf_evsel *counter;
- int cpu, s, s2, id, nr;
+ int s, id, nr;
double uval;
u64 ena, run, val;
bool first;
@@ -1201,23 +1236,20 @@ static void print_aggr(char *prefix)
* Without each counter has its own line.
*/
for (s = 0; s < aggr_map->nr; s++) {
+ struct aggr_data ad;
if (prefix && metric_only)
fprintf(output, "%s", prefix);
- id = aggr_map->map[s];
+ ad.id = id = aggr_map->map[s];
first = true;
evlist__for_each_entry(evsel_list, counter) {
- val = ena = run = 0;
- nr = 0;
- for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
- if (s2 != id)
- continue;
- val += perf_counts(counter->counts, cpu, 0)->val;
- ena += perf_counts(counter->counts, cpu, 0)->ena;
- run += perf_counts(counter->counts, cpu, 0)->run;
- nr++;
- }
+ ad.val = ad.ena = ad.run = 0;
+ ad.nr = 0;
+ collect_data(counter, aggr_cb, &ad);
+ nr = ad.nr;
+ ena = ad.ena;
+ run = ad.run;
+ val = ad.val;
if (first && metric_only) {
first = false;
aggr_printout(counter, id, nr);
@@ -1261,6 +1293,21 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
}
}
+struct caggr_data {
+ double avg, avg_enabled, avg_running;
+};
+
+static void counter_aggr_cb(struct perf_evsel *counter, void *data,
+ bool first __maybe_unused)
+{
+ struct caggr_data *cd = data;
+ struct perf_stat_evsel *ps = counter->priv;
+
+ cd->avg += avg_stats(&ps->res_stats[0]);
+ cd->avg_enabled += avg_stats(&ps->res_stats[1]);
+ cd->avg_running += avg_stats(&ps->res_stats[2]);
+}
+
/*
* Print out the results of a single counter:
* aggregated counts in system-wide mode
@@ -1268,23 +1315,30 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
{
FILE *output = stat_config.output;
- struct perf_stat_evsel *ps = counter->priv;
- double avg = avg_stats(&ps->res_stats[0]);
double uval;
- double avg_enabled, avg_running;
+ struct caggr_data cd = { .avg = 0.0 };
- avg_enabled = avg_stats(&ps->res_stats[1]);
- avg_running = avg_stats(&ps->res_stats[2]);
+ collect_data(counter, counter_aggr_cb, &cd);
if (prefix && !metric_only)
fprintf(output, "%s", prefix);
- uval = avg * counter->scale;
- printout(-1, 0, counter, uval, prefix, avg_running, avg_enabled, avg);
+ uval = cd.avg * counter->scale;
+ printout(-1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled, cd.avg);
if (!metric_only)
fprintf(output, "\n");
}
+static void counter_cb(struct perf_evsel *counter, void *data,
+ bool first __maybe_unused)
+{
+ struct aggr_data *ad = data;
+
+ ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;
+ ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;
+ ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;
+}
+
/*
* Print out the results of a single counter:
* does not use aggregated count in system-wide
@@ -1297,9 +1351,12 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- val = perf_counts(counter->counts, cpu, 0)->val;
- ena = perf_counts(counter->counts, cpu, 0)->ena;
- run = perf_counts(counter->counts, cpu, 0)->run;
+ struct aggr_data ad = { .cpu = cpu };
+
+ collect_data(counter, counter_cb, &ad);
+ val = ad.val;
+ ena = ad.ena;
+ run = ad.run;
if (prefix)
fprintf(output, "%s", prefix);
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 19:50 +0100 |
| Subject | [tip:perf/core] perf stat: Factor out callback for collecting event values |
| Message-ID | <toCrE-5z0-29@gated-at.bofh.it> |
| In reply to | #1605117 |
Commit-ID: fbe51fba82901fd15d3e0a068388fcd7d02dc047
Gitweb: http://git.kernel.org/tip/fbe51fba82901fd15d3e0a068388fcd7d02dc047
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:16:59 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 21 Mar 2017 16:03:39 -0300
perf stat: Factor out callback for collecting event values
To be used in next patch to support automatic summing of alias events.
v2: Move check for bad results to next patch
v3: Remove trivial addition.
v4: Use perf_evsel__cpus instead of evsel->cpus
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-2-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 103 +++++++++++++++++++++++++++++++++++-----------
1 file changed, 80 insertions(+), 23 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f53f449..5c13a0f 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1182,11 +1182,46 @@ static void aggr_update_shadow(void)
}
}
+static void collect_data(struct perf_evsel *counter,
+ void (*cb)(struct perf_evsel *counter, void *data,
+ bool first),
+ void *data)
+{
+ cb(counter, data, true);
+}
+
+struct aggr_data {
+ u64 ena, run, val;
+ int id;
+ int nr;
+ int cpu;
+};
+
+static void aggr_cb(struct perf_evsel *counter, void *data, bool first)
+{
+ struct aggr_data *ad = data;
+ int cpu, s2;
+
+ for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
+ struct perf_counts_values *counts;
+
+ s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
+ if (s2 != ad->id)
+ continue;
+ if (first)
+ ad->nr++;
+ counts = perf_counts(counter->counts, cpu, 0);
+ ad->val += counts->val;
+ ad->ena += counts->ena;
+ ad->run += counts->run;
+ }
+}
+
static void print_aggr(char *prefix)
{
FILE *output = stat_config.output;
struct perf_evsel *counter;
- int cpu, s, s2, id, nr;
+ int s, id, nr;
double uval;
u64 ena, run, val;
bool first;
@@ -1201,23 +1236,20 @@ static void print_aggr(char *prefix)
* Without each counter has its own line.
*/
for (s = 0; s < aggr_map->nr; s++) {
+ struct aggr_data ad;
if (prefix && metric_only)
fprintf(output, "%s", prefix);
- id = aggr_map->map[s];
+ ad.id = id = aggr_map->map[s];
first = true;
evlist__for_each_entry(evsel_list, counter) {
- val = ena = run = 0;
- nr = 0;
- for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
- if (s2 != id)
- continue;
- val += perf_counts(counter->counts, cpu, 0)->val;
- ena += perf_counts(counter->counts, cpu, 0)->ena;
- run += perf_counts(counter->counts, cpu, 0)->run;
- nr++;
- }
+ ad.val = ad.ena = ad.run = 0;
+ ad.nr = 0;
+ collect_data(counter, aggr_cb, &ad);
+ nr = ad.nr;
+ ena = ad.ena;
+ run = ad.run;
+ val = ad.val;
if (first && metric_only) {
first = false;
aggr_printout(counter, id, nr);
@@ -1261,6 +1293,21 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
}
}
+struct caggr_data {
+ double avg, avg_enabled, avg_running;
+};
+
+static void counter_aggr_cb(struct perf_evsel *counter, void *data,
+ bool first __maybe_unused)
+{
+ struct caggr_data *cd = data;
+ struct perf_stat_evsel *ps = counter->priv;
+
+ cd->avg += avg_stats(&ps->res_stats[0]);
+ cd->avg_enabled += avg_stats(&ps->res_stats[1]);
+ cd->avg_running += avg_stats(&ps->res_stats[2]);
+}
+
/*
* Print out the results of a single counter:
* aggregated counts in system-wide mode
@@ -1268,23 +1315,30 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
{
FILE *output = stat_config.output;
- struct perf_stat_evsel *ps = counter->priv;
- double avg = avg_stats(&ps->res_stats[0]);
double uval;
- double avg_enabled, avg_running;
+ struct caggr_data cd = { .avg = 0.0 };
- avg_enabled = avg_stats(&ps->res_stats[1]);
- avg_running = avg_stats(&ps->res_stats[2]);
+ collect_data(counter, counter_aggr_cb, &cd);
if (prefix && !metric_only)
fprintf(output, "%s", prefix);
- uval = avg * counter->scale;
- printout(-1, 0, counter, uval, prefix, avg_running, avg_enabled, avg);
+ uval = cd.avg * counter->scale;
+ printout(-1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled, cd.avg);
if (!metric_only)
fprintf(output, "\n");
}
+static void counter_cb(struct perf_evsel *counter, void *data,
+ bool first __maybe_unused)
+{
+ struct aggr_data *ad = data;
+
+ ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;
+ ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;
+ ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;
+}
+
/*
* Print out the results of a single counter:
* does not use aggregated count in system-wide
@@ -1297,9 +1351,12 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
int cpu;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- val = perf_counts(counter->counts, cpu, 0)->val;
- ena = perf_counts(counter->counts, cpu, 0)->ena;
- run = perf_counts(counter->counts, cpu, 0)->run;
+ struct aggr_data ad = { .cpu = cpu };
+
+ collect_data(counter, counter_cb, &ad);
+ val = ad.val;
+ ena = ad.ena;
+ run = ad.run;
if (prefix)
fprintf(output, "%s", prefix);
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:30 +0100 |
| Subject | [PATCH 06/13] perf, tools: Special case uncore_ prefix |
| Message-ID | <tnc6e-1uQ-21@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
Special case uncore_ prefix in PMU match, to allow for shorter event
uncore specifications.
Before
perf stat -a -e uncore_cbox/event=0x35,umask=0x1,filter_opc=0x19C/ sleep 1
After
perf stat -a -e cbox/event=0x35,umask=0x1,filter_opc=0x19C/ sleep 1
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/util/parse-events.y | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 20935b17753d..04fd8c9af9f9 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -239,6 +239,9 @@ PE_NAME opt_event_config
while ((pmu = perf_pmu__scan(pmu)) != NULL) {
char *name = pmu->name;
+ if (!strncmp(name, "uncore_", 7) &&
+ strncmp($1, "uncore_", 7))
+ name += 7;
if (!strncmp($1, name, strlen($1))) {
if (parse_events_copy_term_list(orig_terms, &terms))
YYABORT;
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 20:00 +0100 |
| Subject | [tip:perf/core] perf pmu: Special case uncore_ prefix |
| Message-ID | <toCBj-5D8-15@gated-at.bofh.it> |
| In reply to | #1605118 |
Commit-ID: a820e33547aee9fd0460106c1fc577a125c23975
Gitweb: http://git.kernel.org/tip/a820e33547aee9fd0460106c1fc577a125c23975
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:17:04 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 21 Mar 2017 16:10:59 -0300
perf pmu: Special case uncore_ prefix
Special case uncore_ prefix in PMU match, to allow for shorter event
uncore specifications.
Before:
perf stat -a -e uncore_cbox/event=0x35,umask=0x1,filter_opc=0x19C/ sleep 1
After
perf stat -a -e cbox/event=0x35,umask=0x1,filter_opc=0x19C/ sleep 1
Committer tests:
# perf list uncore
List of pre-defined events (to be used in -e):
uncore_cbox_0/clockticks/ [Kernel PMU event]
uncore_cbox_1/clockticks/ [Kernel PMU event]
uncore_imc/data_reads/ [Kernel PMU event]
uncore_imc/data_writes/ [Kernel PMU event]
# perf stat -a -e cbox_0/clockticks/ sleep 1
Performance counter stats for 'system wide':
281,474,976,653,084 cbox_0/clockticks/
1.000870129 seconds time elapsed
#
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/20170320201711.14142-7-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/parse-events.y | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 20935b17..04fd8c9 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -239,6 +239,9 @@ PE_NAME opt_event_config
while ((pmu = perf_pmu__scan(pmu)) != NULL) {
char *name = pmu->name;
+ if (!strncmp(name, "uncore_", 7) &&
+ strncmp($1, "uncore_", 7))
+ name += 7;
if (!strncmp($1, name, strlen($1))) {
if (parse_events_copy_term_list(orig_terms, &terms))
YYABORT;
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:30 +0100 |
| Subject | [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric |
| Message-ID | <tnc6e-1uQ-9@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
Add generic infrastructure to perf stat to output ratios for "MetricExpr"
entries in the event lists. Many events are more useful as ratios
than in raw form, typically some count in relation to total ticks.
Transfer the MetricExpr information from the alias to the evsel.
We mark the events that need to be collected for MetricExpr, and also
link the events using them with a pointer. The code is careful
to always prefer the right event in the same group to minimize
multiplexing errors. At the moment only a single relation is supported.
Then add a rblist to the stat shadow code that remembers stats based
on the cpu and context.
Then finally update and retrieve and print these values similarly to the
existing hardcoded perf metrics. We use the simple expression parser
added earlier to evaluate the expression.
Normally we just output the result without further commentary,
but for --metric-only this would lead to empty columns. So for this
case use the original event as description.
There is no attempt to automatically add the MetricExpr event,
if it is missing, however we suggest it to the user, because
the user tool doesn't have enough information to reliably
construct a group that is guaranteed to schedule. So we leave
that to the user.
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}'
1.000147889 800,085,181 unc_p_clockticks
1.000147889 93,126,241 unc_p_freq_max_os_cycles # 11.6
2.000448381 800,218,217 unc_p_clockticks
2.000448381 142,516,095 unc_p_freq_max_os_cycles # 17.8
3.000639852 800,243,057 unc_p_clockticks
3.000639852 162,292,689 unc_p_freq_max_os_cycles # 20.3
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
1.000127077 0.9
2.000301436 0.7
3.000456379 0.0
v2: Change from DivideBy to MetricExpr
v3: Use expr__ prefix. Support more than one other event.
v4: Update description
v5: Only print warning message once for multiple PMUs.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/builtin-stat.c | 3 +
tools/perf/util/evsel.c | 3 +
tools/perf/util/evsel.h | 3 +
tools/perf/util/parse-events.c | 1 +
tools/perf/util/pmu.c | 2 +
tools/perf/util/pmu.h | 1 +
tools/perf/util/stat-shadow.c | 195 +++++++++++++++++++++++++++++++++++++++++
tools/perf/util/stat.h | 2 +
8 files changed, 210 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index cd7dc3b648ca..01b589e3c3a6 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1145,6 +1145,7 @@ static void printout(int id, int nr, struct perf_evsel *counter, double uval,
out.print_metric = pm;
out.new_line = nl;
out.ctx = &os;
+ out.force_header = false;
if (csv_output && !metric_only) {
print_noise(counter, noise);
@@ -1480,6 +1481,7 @@ static void print_metric_headers(const char *prefix, bool no_indent)
out.ctx = &os;
out.print_metric = print_metric_header;
out.new_line = new_line_metric;
+ out.force_header = true;
os.evsel = counter;
perf_stat__print_shadow_stats(counter, 0,
0,
@@ -2498,6 +2500,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands,
(const char **) stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
+ perf_stat__collect_metric_expr(evsel_list);
perf_stat__init_shadow_stats();
if (csv_sep) {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 175dc2305aa8..ef2a31f6dd06 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -236,6 +236,9 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
perf_evsel__calc_id_pos(evsel);
evsel->cmdline_group_boundary = false;
+ evsel->metric_expr = NULL;
+ evsel->metric_events = NULL;
+ evsel->collect_stat = false;
}
struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index bd2e9b112d49..8f1f61826fdf 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -132,6 +132,9 @@ struct perf_evsel {
struct list_head config_terms;
int bpf_fd;
bool merged_stat;
+ const char * metric_expr;
+ struct perf_evsel **metric_events;
+ bool collect_stat;
};
union u64_swap {
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index e594c974c93e..91b8e83e307d 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1255,6 +1255,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
evsel->scale = info.scale;
evsel->per_pkg = info.per_pkg;
evsel->snapshot = info.snapshot;
+ evsel->metric_expr = info.metric_expr;
}
return evsel ? 0 : -ENOMEM;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index c0d487b3b925..0f1133aa3253 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -994,6 +994,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
info->unit = NULL;
info->scale = 0.0;
info->snapshot = false;
+ info->metric_expr = NULL;
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
@@ -1009,6 +1010,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
if (alias->per_pkg)
info->per_pkg = true;
+ info->metric_expr = alias->metric_expr;
list_del(&term->list);
free(term);
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 3dccb15f29e9..27f078ccc594 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -31,6 +31,7 @@ struct perf_pmu {
struct perf_pmu_info {
const char *unit;
+ const char *metric_expr;
double scale;
bool per_pkg;
bool snapshot;
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 8a2bbd2a4d82..c323cce97d98 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -3,6 +3,9 @@
#include "stat.h"
#include "color.h"
#include "pmu.h"
+#include "rblist.h"
+#include "evlist.h"
+#include "expr.h"
enum {
CTX_BIT_USER = 1 << 0,
@@ -41,13 +44,73 @@ static struct stats runtime_topdown_slots_issued[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_slots_retired[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_fetch_bubbles[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_recovery_bubbles[NUM_CTX][MAX_NR_CPUS];
+static struct rblist runtime_saved_values;
static bool have_frontend_stalled;
struct stats walltime_nsecs_stats;
+struct saved_value {
+ struct rb_node rb_node;
+ struct perf_evsel *evsel;
+ int cpu;
+ int ctx;
+ struct stats stats;
+};
+
+static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
+{
+ struct saved_value *a = container_of(rb_node,
+ struct saved_value,
+ rb_node);
+ const struct saved_value *b = entry;
+
+ if (a->ctx != b->ctx)
+ return a->ctx - b->ctx;
+ if (a->cpu != b->cpu)
+ return a->cpu - b->cpu;
+ return a->evsel - b->evsel;
+}
+
+static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
+ const void *entry)
+{
+ struct saved_value *nd = malloc(sizeof(struct saved_value));
+
+ if (!nd)
+ return NULL;
+ memcpy(nd, entry, sizeof(struct saved_value));
+ return &nd->rb_node;
+}
+
+static struct saved_value *saved_value_lookup(struct perf_evsel *evsel,
+ int cpu, int ctx,
+ bool create)
+{
+ struct rb_node *nd;
+ struct saved_value dm = {
+ .cpu = cpu,
+ .ctx = ctx,
+ .evsel = evsel,
+ };
+ nd = rblist__find(&runtime_saved_values, &dm);
+ if (nd)
+ return container_of(nd, struct saved_value, rb_node);
+ if (create) {
+ rblist__add_node(&runtime_saved_values, &dm);
+ nd = rblist__find(&runtime_saved_values, &dm);
+ if (nd)
+ return container_of(nd, struct saved_value, rb_node);
+ }
+ return NULL;
+}
+
void perf_stat__init_shadow_stats(void)
{
have_frontend_stalled = pmu_have_event("cpu", "stalled-cycles-frontend");
+ rblist__init(&runtime_saved_values);
+ runtime_saved_values.node_cmp = saved_value_cmp;
+ runtime_saved_values.node_new = saved_value_new;
+ /* No delete for now */
}
static int evsel_context(struct perf_evsel *evsel)
@@ -70,6 +133,8 @@ static int evsel_context(struct perf_evsel *evsel)
void perf_stat__reset_shadow_stats(void)
{
+ struct rb_node *pos, *next;
+
memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats));
memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats));
memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats));
@@ -92,6 +157,15 @@ void perf_stat__reset_shadow_stats(void)
memset(runtime_topdown_slots_issued, 0, sizeof(runtime_topdown_slots_issued));
memset(runtime_topdown_fetch_bubbles, 0, sizeof(runtime_topdown_fetch_bubbles));
memset(runtime_topdown_recovery_bubbles, 0, sizeof(runtime_topdown_recovery_bubbles));
+
+ next = rb_first(&runtime_saved_values.entries);
+ while (next) {
+ pos = next;
+ next = rb_next(pos);
+ memset(&container_of(pos, struct saved_value, rb_node)->stats,
+ 0,
+ sizeof(struct stats));
+ }
}
/*
@@ -143,6 +217,12 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);
+
+ if (counter->collect_stat) {
+ struct saved_value *v = saved_value_lookup(counter, cpu, ctx,
+ true);
+ update_stats(&v->stats, count[0]);
+ }
}
/* used for get_ratio_color() */
@@ -172,6 +252,95 @@ static const char *get_ratio_color(enum grc_type type, double ratio)
return color;
}
+static struct perf_evsel *perf_stat__find_event(struct perf_evlist *evsel_list,
+ const char *name)
+{
+ struct perf_evsel *c2;
+
+ evlist__for_each_entry (evsel_list, c2) {
+ if (!strcasecmp(c2->name, name))
+ return c2;
+ }
+ return NULL;
+}
+
+/* Mark MetricExpr target events and link events using them to them. */
+void perf_stat__collect_metric_expr(struct perf_evlist *evsel_list)
+{
+ struct perf_evsel *counter, *leader, **metric_events, *oc;
+ bool found;
+ const char **metric_names;
+ int i;
+ int num_metric_names;
+
+ evlist__for_each_entry(evsel_list, counter) {
+ bool invalid = false;
+
+ leader = counter->leader;
+ if (!counter->metric_expr)
+ continue;
+ metric_events = counter->metric_events;
+ if (!metric_events) {
+ if (expr__find_other(counter->metric_expr, counter->name,
+ &metric_names, &num_metric_names) < 0)
+ continue;
+
+ metric_events = calloc(sizeof(struct perf_evsel *),
+ num_metric_names + 1);
+ if (!metric_events)
+ return;
+ counter->metric_events = metric_events;
+ }
+
+ for (i = 0; i < num_metric_names; i++) {
+ found = false;
+ if (leader) {
+ /* Search in group */
+ for_each_group_member (oc, leader) {
+ if (!strcasecmp(oc->name, metric_names[i])) {
+ found = true;
+ break;
+ }
+ }
+ }
+ if (!found) {
+ /* Search ignoring groups */
+ oc = perf_stat__find_event(evsel_list, metric_names[i]);
+ }
+ if (!oc) {
+ /* Deduping one is good enough to handle duplicated PMUs. */
+ static char *printed;
+
+ /*
+ * Adding events automatically would be difficult, because
+ * it would risk creating groups that are not schedulable.
+ * perf stat doesn't understand all the scheduling constraints
+ * of events. So we ask the user instead to add the missing
+ * events.
+ */
+ if (!printed || strcasecmp(printed, metric_names[i])) {
+ fprintf(stderr,
+ "Add %s event to groups to get metric expression for %s\n",
+ metric_names[i],
+ counter->name);
+ printed = strdup(metric_names[i]);
+ }
+ invalid = true;
+ continue;
+ }
+ metric_events[i] = oc;
+ oc->collect_stat = true;
+ }
+ metric_events[i] = NULL;
+ free(metric_names);
+ if (invalid) {
+ free(metric_events);
+ counter->metric_events = NULL;
+ counter->metric_expr = NULL;
+ }
+ }
+}
+
static void print_stalled_cycles_frontend(int cpu,
struct perf_evsel *evsel, double avg,
struct perf_stat_output_ctx *out)
@@ -614,6 +783,32 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
be_bound * 100.);
else
print_metric(ctxp, NULL, NULL, name, 0);
+ } else if (evsel->metric_expr) {
+ struct parse_ctx pctx;
+ int i;
+
+ expr__ctx_init(&pctx);
+ expr__add_id(&pctx, evsel->name, avg);
+ for (i = 0; evsel->metric_events[i]; i++) {
+ struct saved_value *v;
+
+ v = saved_value_lookup(evsel->metric_events[i], cpu, ctx, false);
+ if (!v)
+ break;
+ expr__add_id(&pctx, evsel->metric_events[i]->name,
+ avg_stats(&v->stats));
+ }
+ if (!evsel->metric_events[i]) {
+ const char *p = evsel->metric_expr;
+
+ if (expr__parse(&ratio, &pctx, &p) == 0)
+ print_metric(ctxp, NULL, "%8.1f",
+ out->force_header ? evsel->name : "",
+ ratio);
+ else
+ print_metric(ctxp, NULL, NULL, "", 0);
+ } else
+ print_metric(ctxp, NULL, NULL, "", 0);
} else if (runtime_nsecs_stats[cpu].n != 0) {
char unit = 'M';
char unit_buf[10];
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index c29bb94c48a4..0a65ae23f495 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -85,11 +85,13 @@ struct perf_stat_output_ctx {
void *ctx;
print_metric_t print_metric;
new_line_t new_line;
+ bool force_header;
};
void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
double avg, int cpu,
struct perf_stat_output_ctx *out);
+void perf_stat__collect_metric_expr(struct perf_evlist *);
int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
void perf_evlist__free_stats(struct perf_evlist *evlist);
--
2.9.3
[toc] | [prev] | [next] | [standalone]
| From | Jiri Olsa <jolsa@redhat.com> |
|---|---|
| Date | 2017-03-21 15:50 +0100 |
| Subject | Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric |
| Message-ID | <tntgK-4Dp-23@gated-at.bofh.it> |
| In reply to | #1605119 |
On Mon, Mar 20, 2017 at 01:17:08PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> Add generic infrastructure to perf stat to output ratios for "MetricExpr"
> entries in the event lists. Many events are more useful as ratios
> than in raw form, typically some count in relation to total ticks.
>
> Transfer the MetricExpr information from the alias to the evsel.
>
> We mark the events that need to be collected for MetricExpr, and also
> link the events using them with a pointer. The code is careful
> to always prefer the right event in the same group to minimize
> multiplexing errors. At the moment only a single relation is supported.
>
> Then add a rblist to the stat shadow code that remembers stats based
> on the cpu and context.
>
> Then finally update and retrieve and print these values similarly to the
> existing hardcoded perf metrics. We use the simple expression parser
> added earlier to evaluate the expression.
>
> Normally we just output the result without further commentary,
> but for --metric-only this would lead to empty columns. So for this
> case use the original event as description.
>
> There is no attempt to automatically add the MetricExpr event,
> if it is missing, however we suggest it to the user, because
> the user tool doesn't have enough information to reliably
> construct a group that is guaranteed to schedule. So we leave
> that to the user.
>
> % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}'
> 1.000147889 800,085,181 unc_p_clockticks
> 1.000147889 93,126,241 unc_p_freq_max_os_cycles # 11.6
> 2.000448381 800,218,217 unc_p_clockticks
> 2.000448381 142,516,095 unc_p_freq_max_os_cycles # 17.8
> 3.000639852 800,243,057 unc_p_clockticks
> 3.000639852 162,292,689 unc_p_freq_max_os_cycles # 20.3
>
> % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
> 1.000127077 0.9
> 2.000301436 0.7
> 3.000456379 0.0
The comment above suggest I'll see 'original event as description' in this example??
jirka
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-21 16:50 +0100 |
| Subject | Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric |
| Message-ID | <tnucP-5iR-31@gated-at.bofh.it> |
| In reply to | #1605673 |
> > % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
> > 1.000127077 0.9
> > 2.000301436 0.7
> > 3.000456379 0.0
>
> The comment above suggest I'll see 'original event as description' in this example??
Yes the latest code prints
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
# time freq_max_os_cycles %
1.000234103 65.0
2.000478612 75.2
3.000681286 37.4
4.000847224 2.9
-Andi
[toc] | [prev] | [next] | [standalone]
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Date | 2017-03-21 20:50 +0100 |
| Subject | Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric |
| Message-ID | <tnxX4-7To-15@gated-at.bofh.it> |
| In reply to | #1605746 |
Em Tue, Mar 21, 2017 at 08:45:22AM -0700, Andi Kleen escreveu:
> > > % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
> > > 1.000127077 0.9
> > > 2.000301436 0.7
> > > 3.000456379 0.0
> >
> > The comment above suggest I'll see 'original event as description' in this example??
>
> Yes the latest code prints
>
> % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
> # time freq_max_os_cycles %
> 1.000234103 65.0
> 2.000478612 75.2
> 3.000681286 37.4
> 4.000847224 2.9
Ok, ammending that then, I guess that happened because you didn't left
justified it with two spaces and git got it as a comment?
- Arnaldo
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <ak@linux.intel.com> |
|---|---|
| Date | 2017-03-21 21:00 +0100 |
| Subject | Re: [PATCH 10/13] perf, tools, stat: Output JSON MetricExpr metric |
| Message-ID | <tny6K-7WE-7@gated-at.bofh.it> |
| In reply to | #1605952 |
On Tue, Mar 21, 2017 at 04:42:45PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, Mar 21, 2017 at 08:45:22AM -0700, Andi Kleen escreveu:
> > > > % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
> > > > 1.000127077 0.9
> > > > 2.000301436 0.7
> > > > 3.000456379 0.0
> > >
> > > The comment above suggest I'll see 'original event as description' in this example??
> >
> > Yes the latest code prints
> >
> > % perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
> > # time freq_max_os_cycles %
> > 1.000234103 65.0
> > 2.000478612 75.2
> > 3.000681286 37.4
> > 4.000847224 2.9
>
> Ok, ammending that then, I guess that happened because you didn't left
> justified it with two spaces and git got it as a comment?
Yes that was it likely. I was wondering how it happened.
-Andi
[toc] | [prev] | [next] | [standalone]
| From | tip-bot for Andi Kleen <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-24 20:00 +0100 |
| Subject | [tip:perf/core] perf stat: Output JSON MetricExpr metric |
| Message-ID | <toCBk-5D8-25@gated-at.bofh.it> |
| In reply to | #1605119 |
Commit-ID: 37932c188ef1b471eae29249df045c8e567772d0
Gitweb: http://git.kernel.org/tip/37932c188ef1b471eae29249df045c8e567772d0
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Mon, 20 Mar 2017 13:17:08 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 23 Mar 2017 11:42:30 -0300
perf stat: Output JSON MetricExpr metric
Add generic infrastructure to perf stat to output ratios for
"MetricExpr" entries in the event lists. Many events are more useful as
ratios than in raw form, typically some count in relation to total
ticks.
Transfer the MetricExpr information from the alias to the evsel.
We mark the events that need to be collected for MetricExpr, and also
link the events using them with a pointer. The code is careful to always
prefer the right event in the same group to minimize multiplexing
errors. At the moment only a single relation is supported.
Then add a rblist to the stat shadow code that remembers stats based on
the cpu and context.
Then finally update and retrieve and print these values similarly to the
existing hardcoded perf metrics. We use the simple expression parser
added earlier to evaluate the expression.
Normally we just output the result without further commentary, but for
--metric-only this would lead to empty columns. So for this case use the
original event as description.
There is no attempt to automatically add the MetricExpr event, if it is
missing, however we suggest it to the user, because the user tool
doesn't have enough information to reliably construct a group that is
guaranteed to schedule. So we leave that to the user.
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}'
1.000147889 800,085,181 unc_p_clockticks
1.000147889 93,126,241 unc_p_freq_max_os_cycles # 11.6
2.000448381 800,218,217 unc_p_clockticks
2.000448381 142,516,095 unc_p_freq_max_os_cycles # 17.8
3.000639852 800,243,057 unc_p_clockticks
3.000639852 162,292,689 unc_p_freq_max_os_cycles # 20.3
% perf stat -a -I 1000 -e '{unc_p_clockticks,unc_p_freq_max_os_cycles}' --metric-only
# time freq_max_os_cycles %
1.000127077 0.9
2.000301436 0.7
3.000456379 0.0
v2: Change from DivideBy to MetricExpr
v3: Use expr__ prefix. Support more than one other event.
v4: Update description
v5: Only print warning message once for multiple PMUs.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170320201711.14142-11-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 3 +
tools/perf/util/evsel.c | 3 +
tools/perf/util/evsel.h | 3 +
tools/perf/util/parse-events.c | 1 +
tools/perf/util/pmu.c | 2 +
tools/perf/util/pmu.h | 1 +
tools/perf/util/stat-shadow.c | 195 +++++++++++++++++++++++++++++++++++++++++
tools/perf/util/stat.h | 2 +
8 files changed, 210 insertions(+)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index cd7dc3b..01b589e 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1145,6 +1145,7 @@ static void printout(int id, int nr, struct perf_evsel *counter, double uval,
out.print_metric = pm;
out.new_line = nl;
out.ctx = &os;
+ out.force_header = false;
if (csv_output && !metric_only) {
print_noise(counter, noise);
@@ -1480,6 +1481,7 @@ static void print_metric_headers(const char *prefix, bool no_indent)
out.ctx = &os;
out.print_metric = print_metric_header;
out.new_line = new_line_metric;
+ out.force_header = true;
os.evsel = counter;
perf_stat__print_shadow_stats(counter, 0,
0,
@@ -2498,6 +2500,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options_subcommand(argc, argv, stat_options, stat_subcommands,
(const char **) stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
+ perf_stat__collect_metric_expr(evsel_list);
perf_stat__init_shadow_stats();
if (csv_sep) {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 175dc23..ef2a31f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -236,6 +236,9 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
perf_evsel__calc_id_pos(evsel);
evsel->cmdline_group_boundary = false;
+ evsel->metric_expr = NULL;
+ evsel->metric_events = NULL;
+ evsel->collect_stat = false;
}
struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index bd2e9b1..8f1f618 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -132,6 +132,9 @@ struct perf_evsel {
struct list_head config_terms;
int bpf_fd;
bool merged_stat;
+ const char * metric_expr;
+ struct perf_evsel **metric_events;
+ bool collect_stat;
};
union u64_swap {
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index e594c97..91b8e83 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1255,6 +1255,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
evsel->scale = info.scale;
evsel->per_pkg = info.per_pkg;
evsel->snapshot = info.snapshot;
+ evsel->metric_expr = info.metric_expr;
}
return evsel ? 0 : -ENOMEM;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index c0d487b..0f1133a 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -994,6 +994,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
info->unit = NULL;
info->scale = 0.0;
info->snapshot = false;
+ info->metric_expr = NULL;
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
@@ -1009,6 +1010,7 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
if (alias->per_pkg)
info->per_pkg = true;
+ info->metric_expr = alias->metric_expr;
list_del(&term->list);
free(term);
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 3dccb15..27f078c 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -31,6 +31,7 @@ struct perf_pmu {
struct perf_pmu_info {
const char *unit;
+ const char *metric_expr;
double scale;
bool per_pkg;
bool snapshot;
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 8a2bbd2..c323cce 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -3,6 +3,9 @@
#include "stat.h"
#include "color.h"
#include "pmu.h"
+#include "rblist.h"
+#include "evlist.h"
+#include "expr.h"
enum {
CTX_BIT_USER = 1 << 0,
@@ -41,13 +44,73 @@ static struct stats runtime_topdown_slots_issued[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_slots_retired[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_fetch_bubbles[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_recovery_bubbles[NUM_CTX][MAX_NR_CPUS];
+static struct rblist runtime_saved_values;
static bool have_frontend_stalled;
struct stats walltime_nsecs_stats;
+struct saved_value {
+ struct rb_node rb_node;
+ struct perf_evsel *evsel;
+ int cpu;
+ int ctx;
+ struct stats stats;
+};
+
+static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
+{
+ struct saved_value *a = container_of(rb_node,
+ struct saved_value,
+ rb_node);
+ const struct saved_value *b = entry;
+
+ if (a->ctx != b->ctx)
+ return a->ctx - b->ctx;
+ if (a->cpu != b->cpu)
+ return a->cpu - b->cpu;
+ return a->evsel - b->evsel;
+}
+
+static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
+ const void *entry)
+{
+ struct saved_value *nd = malloc(sizeof(struct saved_value));
+
+ if (!nd)
+ return NULL;
+ memcpy(nd, entry, sizeof(struct saved_value));
+ return &nd->rb_node;
+}
+
+static struct saved_value *saved_value_lookup(struct perf_evsel *evsel,
+ int cpu, int ctx,
+ bool create)
+{
+ struct rb_node *nd;
+ struct saved_value dm = {
+ .cpu = cpu,
+ .ctx = ctx,
+ .evsel = evsel,
+ };
+ nd = rblist__find(&runtime_saved_values, &dm);
+ if (nd)
+ return container_of(nd, struct saved_value, rb_node);
+ if (create) {
+ rblist__add_node(&runtime_saved_values, &dm);
+ nd = rblist__find(&runtime_saved_values, &dm);
+ if (nd)
+ return container_of(nd, struct saved_value, rb_node);
+ }
+ return NULL;
+}
+
void perf_stat__init_shadow_stats(void)
{
have_frontend_stalled = pmu_have_event("cpu", "stalled-cycles-frontend");
+ rblist__init(&runtime_saved_values);
+ runtime_saved_values.node_cmp = saved_value_cmp;
+ runtime_saved_values.node_new = saved_value_new;
+ /* No delete for now */
}
static int evsel_context(struct perf_evsel *evsel)
@@ -70,6 +133,8 @@ static int evsel_context(struct perf_evsel *evsel)
void perf_stat__reset_shadow_stats(void)
{
+ struct rb_node *pos, *next;
+
memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats));
memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats));
memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats));
@@ -92,6 +157,15 @@ void perf_stat__reset_shadow_stats(void)
memset(runtime_topdown_slots_issued, 0, sizeof(runtime_topdown_slots_issued));
memset(runtime_topdown_fetch_bubbles, 0, sizeof(runtime_topdown_fetch_bubbles));
memset(runtime_topdown_recovery_bubbles, 0, sizeof(runtime_topdown_recovery_bubbles));
+
+ next = rb_first(&runtime_saved_values.entries);
+ while (next) {
+ pos = next;
+ next = rb_next(pos);
+ memset(&container_of(pos, struct saved_value, rb_node)->stats,
+ 0,
+ sizeof(struct stats));
+ }
}
/*
@@ -143,6 +217,12 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);
+
+ if (counter->collect_stat) {
+ struct saved_value *v = saved_value_lookup(counter, cpu, ctx,
+ true);
+ update_stats(&v->stats, count[0]);
+ }
}
/* used for get_ratio_color() */
@@ -172,6 +252,95 @@ static const char *get_ratio_color(enum grc_type type, double ratio)
return color;
}
+static struct perf_evsel *perf_stat__find_event(struct perf_evlist *evsel_list,
+ const char *name)
+{
+ struct perf_evsel *c2;
+
+ evlist__for_each_entry (evsel_list, c2) {
+ if (!strcasecmp(c2->name, name))
+ return c2;
+ }
+ return NULL;
+}
+
+/* Mark MetricExpr target events and link events using them to them. */
+void perf_stat__collect_metric_expr(struct perf_evlist *evsel_list)
+{
+ struct perf_evsel *counter, *leader, **metric_events, *oc;
+ bool found;
+ const char **metric_names;
+ int i;
+ int num_metric_names;
+
+ evlist__for_each_entry(evsel_list, counter) {
+ bool invalid = false;
+
+ leader = counter->leader;
+ if (!counter->metric_expr)
+ continue;
+ metric_events = counter->metric_events;
+ if (!metric_events) {
+ if (expr__find_other(counter->metric_expr, counter->name,
+ &metric_names, &num_metric_names) < 0)
+ continue;
+
+ metric_events = calloc(sizeof(struct perf_evsel *),
+ num_metric_names + 1);
+ if (!metric_events)
+ return;
+ counter->metric_events = metric_events;
+ }
+
+ for (i = 0; i < num_metric_names; i++) {
+ found = false;
+ if (leader) {
+ /* Search in group */
+ for_each_group_member (oc, leader) {
+ if (!strcasecmp(oc->name, metric_names[i])) {
+ found = true;
+ break;
+ }
+ }
+ }
+ if (!found) {
+ /* Search ignoring groups */
+ oc = perf_stat__find_event(evsel_list, metric_names[i]);
+ }
+ if (!oc) {
+ /* Deduping one is good enough to handle duplicated PMUs. */
+ static char *printed;
+
+ /*
+ * Adding events automatically would be difficult, because
+ * it would risk creating groups that are not schedulable.
+ * perf stat doesn't understand all the scheduling constraints
+ * of events. So we ask the user instead to add the missing
+ * events.
+ */
+ if (!printed || strcasecmp(printed, metric_names[i])) {
+ fprintf(stderr,
+ "Add %s event to groups to get metric expression for %s\n",
+ metric_names[i],
+ counter->name);
+ printed = strdup(metric_names[i]);
+ }
+ invalid = true;
+ continue;
+ }
+ metric_events[i] = oc;
+ oc->collect_stat = true;
+ }
+ metric_events[i] = NULL;
+ free(metric_names);
+ if (invalid) {
+ free(metric_events);
+ counter->metric_events = NULL;
+ counter->metric_expr = NULL;
+ }
+ }
+}
+
static void print_stalled_cycles_frontend(int cpu,
struct perf_evsel *evsel, double avg,
struct perf_stat_output_ctx *out)
@@ -614,6 +783,32 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
be_bound * 100.);
else
print_metric(ctxp, NULL, NULL, name, 0);
+ } else if (evsel->metric_expr) {
+ struct parse_ctx pctx;
+ int i;
+
+ expr__ctx_init(&pctx);
+ expr__add_id(&pctx, evsel->name, avg);
+ for (i = 0; evsel->metric_events[i]; i++) {
+ struct saved_value *v;
+
+ v = saved_value_lookup(evsel->metric_events[i], cpu, ctx, false);
+ if (!v)
+ break;
+ expr__add_id(&pctx, evsel->metric_events[i]->name,
+ avg_stats(&v->stats));
+ }
+ if (!evsel->metric_events[i]) {
+ const char *p = evsel->metric_expr;
+
+ if (expr__parse(&ratio, &pctx, &p) == 0)
+ print_metric(ctxp, NULL, "%8.1f",
+ out->force_header ? evsel->name : "",
+ ratio);
+ else
+ print_metric(ctxp, NULL, NULL, "", 0);
+ } else
+ print_metric(ctxp, NULL, NULL, "", 0);
} else if (runtime_nsecs_stats[cpu].n != 0) {
char unit = 'M';
char unit_buf[10];
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index c29bb94..0a65ae2 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -85,11 +85,13 @@ struct perf_stat_output_ctx {
void *ctx;
print_metric_t print_metric;
new_line_t new_line;
+ bool force_header;
};
void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
double avg, int cpu,
struct perf_stat_output_ctx *out);
+void perf_stat__collect_metric_expr(struct perf_evlist *);
int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
void perf_evlist__free_stats(struct perf_evlist *evlist);
[toc] | [prev] | [next] | [standalone]
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Date | 2017-03-20 21:30 +0100 |
| Subject | [PATCH 13/13] perf, tools, list: Move extra details printing to new option |
| Message-ID | <tnc6e-1uQ-15@gated-at.bofh.it> |
| In reply to | #1605110 |
From: Andi Kleen <ak@linux.intel.com>
Move the printing of perf expressions and internal events to a
new clearer --details flag, instead of lumping it together
with other debug options in --debug. This makes it clearer
to use.
Before
perf list --debug
...
unc_m_power_critical_throttle_cycles
[Cycles all ranks are in critical thermal throttle. Unit: uncore_imc]
uncore_imc_2/event=0x86/ MetricName: power_critical_throttle_cycles % MetricExpr: (unc_m_power_critical_throttle_cycles / unc_m_clockticks) * 100.
after
perf list --details
...
unc_m_power_critical_throttle_cycles
[Cycles all ranks are in critical thermal throttle. Unit: uncore_imc]
uncore_imc_2/event=0x86/ MetricName: power_critical_throttle_cycles % MetricExpr: (unc_m_power_critical_throttle_cycles / unc_m_clockticks) * 100.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/Documentation/perf-list.txt | 4 ++++
tools/perf/builtin-list.c | 14 ++++++++++----
tools/perf/util/parse-events.c | 5 +++--
tools/perf/util/parse-events.h | 2 +-
tools/perf/util/pmu.c | 4 ++--
tools/perf/util/pmu.h | 2 +-
6 files changed, 21 insertions(+), 10 deletions(-)
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index 41857cce5e86..143d98df2df9 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -24,6 +24,10 @@ Don't print descriptions.
--long-desc::
Print longer event descriptions.
+--details::
+Print how named events are resolved internally into perf events, and also
+any extra expressions computed by perf stat.
+
[[EVENT_MODIFIERS]]
EVENT MODIFIERS
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 3b9d98b5feef..be9195e95c78 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -18,6 +18,7 @@
#include <subcmd/parse-options.h>
static bool desc_flag = true;
+static bool details_flag;
int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
{
@@ -30,6 +31,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
"Print extra event descriptions. --no-desc to not print."),
OPT_BOOLEAN('v', "long-desc", &long_desc_flag,
"Print longer event descriptions."),
+ OPT_BOOLEAN(0, "details", &details_flag,
+ "Print information on the perf event names and expressions used internally by events."),
OPT_INCR(0, "debug", &verbose,
"Enable debugging output"),
OPT_END()
@@ -50,7 +53,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
printf("\nList of pre-defined events (to be used in -e):\n\n");
if (argc == 0) {
- print_events(NULL, raw_dump, !desc_flag, long_desc_flag);
+ print_events(NULL, raw_dump, !desc_flag, long_desc_flag,
+ details_flag);
return 0;
}
@@ -72,7 +76,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
print_hwcache_events(NULL, raw_dump);
else if (strcmp(argv[i], "pmu") == 0)
print_pmu_events(NULL, raw_dump, !desc_flag,
- long_desc_flag);
+ long_desc_flag, details_flag);
else if (strcmp(argv[i], "sdt") == 0)
print_sdt_events(NULL, NULL, raw_dump);
else if ((sep = strchr(argv[i], ':')) != NULL) {
@@ -80,7 +84,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
if (sep == NULL) {
print_events(argv[i], raw_dump, !desc_flag,
- long_desc_flag);
+ long_desc_flag,
+ details_flag);
continue;
}
sep_idx = sep - argv[i];
@@ -103,7 +108,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
event_symbols_sw, PERF_COUNT_SW_MAX, raw_dump);
print_hwcache_events(s, raw_dump);
print_pmu_events(s, raw_dump, !desc_flag,
- long_desc_flag);
+ long_desc_flag,
+ details_flag);
print_tracepoint_events(NULL, s, raw_dump);
print_sdt_events(NULL, s, raw_dump);
free(s);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 119eb0b65876..6b498aea9fde 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -2325,7 +2325,7 @@ void print_symbol_events(const char *event_glob, unsigned type,
* Print the help text for the event symbols:
*/
void print_events(const char *event_glob, bool name_only, bool quiet_flag,
- bool long_desc)
+ bool long_desc, bool details_flag)
{
print_symbol_events(event_glob, PERF_TYPE_HARDWARE,
event_symbols_hw, PERF_COUNT_HW_MAX, name_only);
@@ -2335,7 +2335,8 @@ void print_events(const char *event_glob, bool name_only, bool quiet_flag,
print_hwcache_events(event_glob, name_only);
- print_pmu_events(event_glob, name_only, quiet_flag, long_desc);
+ print_pmu_events(event_glob, name_only, quiet_flag, long_desc,
+ details_flag);
if (event_glob != NULL)
return;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index f38086b8dbea..a235f4d6d5e5 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -184,7 +184,7 @@ void parse_events_evlist_error(struct parse_events_evlist *data,
int idx, const char *str);
void print_events(const char *event_glob, bool name_only, bool quiet,
- bool long_desc);
+ bool long_desc, bool details_flag);
struct event_symbol {
const char *symbol;
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index bcf752fa345b..362051ea7f3d 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1154,7 +1154,7 @@ static void wordwrap(char *s, int start, int max, int corr)
}
void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
- bool long_desc)
+ bool long_desc, bool details_flag)
{
struct perf_pmu *pmu;
struct perf_pmu_alias *alias;
@@ -1246,7 +1246,7 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
printf("%*s", 8, "[");
wordwrap(aliases[j].desc, 8, columns, 0);
printf("]\n");
- if (verbose > 0) {
+ if (details_flag) {
printf("%*s%s/%s/ ", 8, "", aliases[j].pmu, aliases[j].str);
if (aliases[j].metric_name)
printf(" MetricName: %s", aliases[j].metric_name);
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 3d4b703f5d89..ea7f450dc609 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -80,7 +80,7 @@ int perf_pmu__format_parse(char *dir, struct list_head *head);
struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
- bool long_desc);
+ bool long_desc, bool details_flag);
bool pmu_have_event(const char *pname, const char *name);
int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt,
--
2.9.3
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