* [PATCH] perf stat: Correct --no-aggr description
@ 2017-03-20 12:37 Ravi Bangoria
2017-03-20 13:37 ` Arnaldo Carvalho de Melo
2017-03-21 6:53 ` [tip:perf/core] " tip-bot for Ravi Bangoria
0 siblings, 2 replies; 3+ messages in thread
From: Ravi Bangoria @ 2017-03-20 12:37 UTC (permalink / raw)
To: acme
Cc: peterz, mingo, alexander.shishkin, jolsa, ak, eranian,
linux-kernel, Ravi Bangoria
Description of --no-aggr in perf-stat man page is outdated. --no-aggr
can also be used while profiling specific set of cpus. For ex,
$ perf stat -e cycles,instructions -C 1-2 --no-aggr -- sleep 1
Performance counter stats for 'CPU(s) 1-2':
CPU1 5,94,92,795 cycles
CPU2 2,69,72,403 cycles
CPU1 2,02,08,327 instructions # 0.34 insn per cycle
CPU2 73,17,123 instructions # 0.12 insn per cycle
1.000989132 seconds time elapsed
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
---
tools/perf/Documentation/perf-stat.txt | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index aecf2a8..9785481 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -94,8 +94,7 @@ to activate system-wide monitoring. Default is to count on all CPUs.
-A::
--no-aggr::
-Do not aggregate counts across all monitored CPUs in system-wide mode (-a).
-This option is only valid in system-wide mode.
+Do not aggregate counts across all monitored CPUs.
-n::
--null::
--
2.1.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] perf stat: Correct --no-aggr description
2017-03-20 12:37 [PATCH] perf stat: Correct --no-aggr description Ravi Bangoria
@ 2017-03-20 13:37 ` Arnaldo Carvalho de Melo
2017-03-21 6:53 ` [tip:perf/core] " tip-bot for Ravi Bangoria
1 sibling, 0 replies; 3+ messages in thread
From: Arnaldo Carvalho de Melo @ 2017-03-20 13:37 UTC (permalink / raw)
To: Ravi Bangoria
Cc: peterz, mingo, alexander.shishkin, jolsa, ak, eranian,
linux-kernel
Em Mon, Mar 20, 2017 at 06:07:18PM +0530, Ravi Bangoria escreveu:
> Description of --no-aggr in perf-stat man page is outdated. --no-aggr
> can also be used while profiling specific set of cpus. For ex,
>
> $ perf stat -e cycles,instructions -C 1-2 --no-aggr -- sleep 1
>
> Performance counter stats for 'CPU(s) 1-2':
>
> CPU1 5,94,92,795 cycles
> CPU2 2,69,72,403 cycles
> CPU1 2,02,08,327 instructions # 0.34 insn per cycle
> CPU2 73,17,123 instructions # 0.12 insn per cycle
>
> 1.000989132 seconds time elapsed
Thanks, applied.
- Arnaldo
^ permalink raw reply [flat|nested] 3+ messages in thread
* [tip:perf/core] perf stat: Correct --no-aggr description
2017-03-20 12:37 [PATCH] perf stat: Correct --no-aggr description Ravi Bangoria
2017-03-20 13:37 ` Arnaldo Carvalho de Melo
@ 2017-03-21 6:53 ` tip-bot for Ravi Bangoria
1 sibling, 0 replies; 3+ messages in thread
From: tip-bot for Ravi Bangoria @ 2017-03-21 6:53 UTC (permalink / raw)
To: linux-tip-commits
Cc: mingo, eranian, acme, ak, tglx, linux-kernel, peterz, jolsa,
ravi.bangoria, hpa, alexander.shishkin
Commit-ID: efc9c05681c589ed942bf8c55a774853938ca8d4
Gitweb: http://git.kernel.org/tip/efc9c05681c589ed942bf8c55a774853938ca8d4
Author: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
AuthorDate: Mon, 20 Mar 2017 18:07:18 +0530
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 20 Mar 2017 15:01:31 -0300
perf stat: Correct --no-aggr description
Description of --no-aggr in perf-stat man page is outdated. --no-aggr
can also be used while profiling specific set of cpus. For ex,
$ perf stat -e cycles,instructions -C 1-2 --no-aggr -- sleep 1
Performance counter stats for 'CPU(s) 1-2':
CPU1 5,94,92,795 cycles
CPU2 2,69,72,403 cycles
CPU1 2,02,08,327 instructions # 0.34 insn per cycle
CPU2 73,17,123 instructions # 0.12 insn per cycle
1.000989132 seconds time elapsed
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1490013438-5713-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-stat.txt | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index aecf2a8..9785481 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -94,8 +94,7 @@ to activate system-wide monitoring. Default is to count on all CPUs.
-A::
--no-aggr::
-Do not aggregate counts across all monitored CPUs in system-wide mode (-a).
-This option is only valid in system-wide mode.
+Do not aggregate counts across all monitored CPUs.
-n::
--null::
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-03-21 7:44 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2017-03-20 12:37 [PATCH] perf stat: Correct --no-aggr description Ravi Bangoria
2017-03-20 13:37 ` Arnaldo Carvalho de Melo
2017-03-21 6:53 ` [tip:perf/core] " tip-bot for Ravi Bangoria
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