linux-kernel - [PATCH] perf stat: Correct --no-aggr description

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Date:   Mon, 20 Mar 2017 18:07:18 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
To:     acme@...nel.org
Cc:     peterz@...radead.org, mingo@...hat.com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        ak@...ux.intel.com, eranian@...gle.com,
        linux-kernel@...r.kernel.org,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Subject: [PATCH] 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Description of --no-aggr in perf-stat man page is outdated.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@...ux.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