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| Started by | Jiri Olsa <jolsa@kernel.org> |
|---|---|
| First post | 2017-03-05 17:50 +0100 |
| Last post | 2017-03-07 09:50 +0100 |
| Articles | 2 — 2 participants |
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[PATCH] perf bench numa: Add more comment for -c option Jiri Olsa <jolsa@kernel.org> - 2017-03-05 17:50 +0100
[tip:perf/core] perf bench numa: Add more comment for -c option tip-bot for Jiri Olsa <tipbot@zytor.com> - 2017-03-07 09:50 +0100
| From | Jiri Olsa <jolsa@kernel.org> |
|---|---|
| Date | 2017-03-05 17:50 +0100 |
| Subject | [PATCH] perf bench numa: Add more comment for -c option |
| Message-ID | <thHw5-2Yp-1@gated-at.bofh.it> |
Adding more commentary for -c/--show_convergence option,
to explain how the convergence is defined.
Before:
-c, --show_convergence
show convergence details
Now:
-c, --show_convergence
show convergence details, convergence is reached \
when each process (all its threads) are running on the single NUMA node
Suggested--by: Jiri Hladky <jhladky@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-jt15298zr1ajgonuvt8c88z1@git.kernel.org
---
tools/perf/bench/numa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 3083fc36282b..18b855ae5df6 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -187,7 +187,8 @@ static const struct option options[] = {
OPT_INCR ('d', "show_details" , &p0.show_details, "Show details"),
OPT_INCR ('a', "all" , &p0.run_all, "Run all tests in the suite"),
OPT_INTEGER('H', "thp" , &p0.thp, "MADV_NOHUGEPAGE < 0 < MADV_HUGEPAGE"),
- OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details"),
+ OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details, "
+ "convergence is reached when each process (all its threads) are running on the single NUMA node"),
OPT_BOOLEAN('m', "measure_convergence", &p0.measure_convergence, "measure convergence latency"),
OPT_BOOLEAN('q', "quiet" , &p0.show_quiet, "quiet mode"),
OPT_BOOLEAN('S', "serialize-startup", &p0.serialize_startup,"serialize thread startup"),
--
2.7.4
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| From | tip-bot for Jiri Olsa <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-07 09:50 +0100 |
| Subject | [tip:perf/core] perf bench numa: Add more comment for -c option |
| Message-ID | <tiiYG-4Va-7@gated-at.bofh.it> |
| In reply to | #1592791 |
Commit-ID: 001916b94a04809a94abb07daba6f9ace01906ba
Gitweb: http://git.kernel.org/tip/001916b94a04809a94abb07daba6f9ace01906ba
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sun, 5 Mar 2017 17:40:11 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 6 Mar 2017 12:39:30 -0300
perf bench numa: Add more comment for -c option
Adding more commentary for -c/--show_convergence option, to explain how
the convergence is defined.
Before:
-c, --show_convergence
show convergence details
Now:
-c, --show_convergence
convergence is reached when each process \
(all its threads) is running on a single NUMA node.
Suggested--by: Jiri Hladky <jhladky@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Hladky <jhladky@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1488732011-27384-1-git-send-email-jolsa@kernel.org
[ Rephrased a bit based on a IRC conversation with Jiri ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/bench/numa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 3083fc3..6bd0581 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -187,7 +187,8 @@ static const struct option options[] = {
OPT_INCR ('d', "show_details" , &p0.show_details, "Show details"),
OPT_INCR ('a', "all" , &p0.run_all, "Run all tests in the suite"),
OPT_INTEGER('H', "thp" , &p0.thp, "MADV_NOHUGEPAGE < 0 < MADV_HUGEPAGE"),
- OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details"),
+ OPT_BOOLEAN('c', "show_convergence", &p0.show_convergence, "show convergence details, "
+ "convergence is reached when each process (all its threads) is running on a single NUMA node."),
OPT_BOOLEAN('m', "measure_convergence", &p0.measure_convergence, "measure convergence latency"),
OPT_BOOLEAN('q', "quiet" , &p0.show_quiet, "quiet mode"),
OPT_BOOLEAN('S', "serialize-startup", &p0.serialize_startup,"serialize thread startup"),
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