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perf stat: Correct --no-aggr description

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Description of --no-aggr in perf-stat man page is outdated.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>
This commit is contained in:
Ravi Bangoria 2017-03-20 18:07:18 +05:30 committed by Arnaldo Carvalho de Melo
parent eedb3c4431
commit efc9c05681
1 changed files with 1 additions and 2 deletions
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3
tools/perf/Documentation/perf-stat.txt
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@ -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::