diff options
| author | Jin Yao <yao.jin@linux.intel.com> | 2018-05-17 22:58:37 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-18 16:31:41 -0300 |
| commit | 48659ebf37e5d9d23bda6dbf032bdbe9708929f1 (patch) | |
| tree | 45ec8def90a035bd2f60963f8f662ae006dab28d /tools/perf/util/annotate.h | |
| parent | 7903a70867230d9edbd5e886cd8b8a2b248f418f (diff) | |
perf annotate: Record the min/max cycles
Currently perf has a feature to account cycles for LBRs
For example, on skylake:
perf record -b ...
perf report or perf annotate
And then browsing the annotate browser gives average cycle counts for
program blocks.
For some analysis it would be useful if we could know not only the
average cycles but also the min and max cycles.
This patch records the min and max cycles.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1526569118-14217-2-git-send-email-yao.jin@linux.intel.com
[ Switch from max/min to min/max ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/annotate.h')
| -rw-r--r-- | tools/perf/util/annotate.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index f28a9e43421d..d50363d56f73 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -105,6 +105,8 @@ struct annotation_line { int jump_sources; float ipc; u64 cycles; + u64 cycles_max; + u64 cycles_min; size_t privsize; char *path; u32 idx; @@ -186,6 +188,8 @@ struct cyc_hist { u64 start; u64 cycles; u64 cycles_aggr; + u64 cycles_max; + u64 cycles_min; u32 num; u32 num_aggr; u8 have_start; |