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Groups > linux.kernel > #1395539
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 04/17] perf trace: Sort syscalls stats by msecs in --summary |
| Date | 2016-05-06 02:40 +0200 |
| Message-ID | <rvBYf-2li-51@gated-at.bofh.it> (permalink) |
| References | <rvBYe-2li-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Arnaldo Carvalho de Melo <acme@redhat.com>
# trace -a -s sleep 1
<SNIP>
Xorg (1965), 788 events, 19.0%, 0.000 msec
syscall calls total min avg max stddev
(msec) (msec) (msec) (msec) (%)
--------------- -------- --------- --------- --------- --------- ------
select 89 731.038 0.000 8.214 175.218 36.71%
ioctl 22 0.661 0.010 0.030 0.072 10.43%
writev 42 0.253 0.002 0.006 0.011 5.94%
recvmsg 60 0.185 0.001 0.003 0.009 5.90%
setitimer 60 0.127 0.001 0.002 0.006 6.14%
read 52 0.102 0.001 0.002 0.005 8.55%
rt_sigprocmask 45 0.092 0.001 0.002 0.023 23.65%
poll 12 0.021 0.001 0.002 0.003 7.21%
epoll_wait 12 0.019 0.001 0.002 0.002 2.71%
firefox (10871), 1080 events, 26.1%, 0.000 msec
syscall calls total min avg max stddev
(msec) (msec) (msec) (msec) (%)
--------------- -------- --------- --------- --------- --------- ------
poll 240 979.562 0.000 4.082 17.132 11.33%
recvmsg 240 0.532 0.001 0.002 0.007 3.69%
read 60 0.303 0.003 0.005 0.029 8.50%
Suggested-by: Milian Wolff <milian.wolff@kdab.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-52kdkuyxihq0kvc0n2aalhay@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-trace.c | 32 ++++++++++++++++++++++----------
1 file changed, 22 insertions(+), 10 deletions(-)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index aac0074cc926..c61e61240b3b 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2785,15 +2785,29 @@ static size_t trace__fprintf_threads_header(FILE *fp)
return printed;
}
+DEFINE_RESORT_RB(syscall_stats, a->msecs > b->msecs,
+ struct stats *stats;
+ double msecs;
+ int syscall;
+)
+{
+ struct int_node *source = rb_entry(nd, struct int_node, rb_node);
+ struct stats *stats = source->priv;
+
+ entry->syscall = source->i;
+ entry->stats = stats;
+ entry->msecs = stats ? (u64)stats->n * (avg_stats(stats) / NSEC_PER_MSEC) : 0;
+}
+
static size_t thread__dump_stats(struct thread_trace *ttrace,
struct trace *trace, FILE *fp)
{
- struct stats *stats;
size_t printed = 0;
struct syscall *sc;
- struct int_node *inode = intlist__first(ttrace->syscall_stats);
+ struct rb_node *nd;
+ DECLARE_RESORT_RB_INTLIST(syscall_stats, ttrace->syscall_stats);
- if (inode == NULL)
+ if (syscall_stats == NULL)
return 0;
printed += fprintf(fp, "\n");
@@ -2802,9 +2816,8 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n");
printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n");
- /* each int_node is a syscall */
- while (inode) {
- stats = inode->priv;
+ resort_rb__for_each(nd, syscall_stats) {
+ struct stats *stats = syscall_stats_entry->stats;
if (stats) {
double min = (double)(stats->min) / NSEC_PER_MSEC;
double max = (double)(stats->max) / NSEC_PER_MSEC;
@@ -2815,16 +2828,15 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
avg /= NSEC_PER_MSEC;
- sc = &trace->syscalls.table[inode->i];
+ sc = &trace->syscalls.table[syscall_stats_entry->syscall];
printed += fprintf(fp, " %-15s", sc->name);
printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f",
- n, avg * n, min, avg);
+ n, syscall_stats_entry->msecs, min, avg);
printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
}
-
- inode = intlist__next(inode);
}
+ resort_rb__delete(syscall_stats);
printed += fprintf(fp, "\n\n");
return printed;
--
2.5.5
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[GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 11/17] perf hists: Move sort__has_socket into struct perf_hpp_list Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 02/17] perf tools: Add template for generating rbtree resort class Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 13/17] perf hists: Move sort__has_comm into struct perf_hpp_list Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 14/17] perf powerpc: Fix kprobe and kretprobe handling with kallsyms on ppc64le Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 04/17] perf trace: Sort syscalls stats by msecs in --summary Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 05/17] perf trace: Do not show the runtime_ms for a thread when not collecting it Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 01/17] perf machine: Introduce number of threads member Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 17/17] perf evlist: Rename variable in perf_mmap__read() Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 10/17] perf hists: Move sort__has_dso into struct perf_hpp_list Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 03/17] perf trace: Sort summary output by number of events Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 09/17] perf hists: Move sort__has_sym into struct perf_hpp_list Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 [PATCH 15/17] perf symbols: Fix kallsyms perf test on ppc64le Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-06 02:40 +0200 Re: [GIT PULL 00/17] perf/core improvements and fixes Ingo Molnar <mingo@kernel.org> - 2016-05-06 08:40 +0200
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