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Groups > linux.kernel > #1604470 > unrolled thread
| Started by | Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> |
|---|---|
| First post | 2017-03-20 13:40 +0100 |
| Last post | 2017-03-21 08:50 +0100 |
| Articles | 3 — 3 participants |
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[PATCH] perf stat: Correct --no-aggr description Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> - 2017-03-20 13:40 +0100
Re: [PATCH] perf stat: Correct --no-aggr description Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-20 14:40 +0100
[tip:perf/core] perf stat: Correct --no-aggr description tip-bot for Ravi Bangoria <tipbot@zytor.com> - 2017-03-21 08:50 +0100
| From | Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> |
|---|---|
| Date | 2017-03-20 13:40 +0100 |
| Subject | [PATCH] perf stat: Correct --no-aggr description |
| Message-ID | <tn4Ln-4J7-11@gated-at.bofh.it> |
Description of --no-aggr in perf-stat man page is outdated.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
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| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Date | 2017-03-20 14:40 +0100 |
| Message-ID | <tn5Hr-5ly-13@gated-at.bofh.it> |
| In reply to | #1604470 |
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 Description of --no-aggr in perf-stat man page is outdated.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
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| From | tip-bot for Ravi Bangoria <tipbot@zytor.com> |
|---|---|
| Date | 2017-03-21 08:50 +0100 |
| Subject | [tip:perf/core] perf stat: Correct --no-aggr description |
| Message-ID | <tnmIh-cd-11@gated-at.bofh.it> |
| In reply to | #1604470 |
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::
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