Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 08/15] perf stat: Document --detailed option | Date | Mon, 7 Mar 2016 16:44:44 -0300 |
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From: Borislav Petkov <bp@suse.de>
I'm surprised this remained undocumented since at least 2011. And it is actually a very useful switch, as Steve and I came to realize recently.
Add the text from
2cba3ffb9a9d ("perf stat: Add -d -d and -d -d -d options to show more CPU events")
which added the incrementing aspect to -d.
Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Davidlohr Bueso <dbueso@suse.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mel Gorman <mgorman@suse.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Fixes: 2cba3ffb9a9d ("perf stat: Add -d -d and -d -d -d options to show more CPU events") Link: http://lkml.kernel.org/r/1457347294-32546-1-git-send-email-bp@alien8.de Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/Documentation/perf-stat.txt | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index 52ef7a9d50aa..14d9e8ffaff7 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -69,6 +69,14 @@ report:: --scale:: scale/normalize counter values +-d:: +--detailed:: + print more detailed statistics, can be specified up to 3 times + + -d: detailed events, L1 and LLC data cache + -d -d: more detailed events, dTLB and iTLB events + -d -d -d: very detailed events, adding prefetch events + -r:: --repeat=<n>:: repeat command and print average + stddev (max: 100). 0 means forever. -- 2.5.0
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