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| author |   Jin Yao <yao.jin@linux.intel.com> | 2020-03-25 06:07:10 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-04-03 09:37:55 -0300 |
| commit | df7deb2cceef0546ab2115702da3421b7c61a8c0 (patch) | |
| tree | 446701849d2dbd215e7463e62ffe4e43bda1ad38 /tools/perf/Documentation/perf-top.txt | |
| parent | perf symbols: Fix arm64 gap between kernel start and module end (diff) | |
| download | wireguard-linux-df7deb2cceef0546ab2115702da3421b7c61a8c0.tar.xz wireguard-linux-df7deb2cceef0546ab2115702da3421b7c61a8c0.zip | |
perf top: Support --group-sort-idx to change the sort order
'perf report' supports the option --group-sort-idx, which sorts the
output by the event at the index n in event group.
For example:
perf record -e cycles,instructions,cache-misses
perf report --group --group-sort-idx 2 --stdio
The perf-report output is sorted by cache-misses.
This patch supports --group-sort-idx in perf-top.
For example:
perf top --group -e cycles,instructions,cache-misses --group-sort-idx 2
The perf-top output is sorted by cache-misses.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.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: Jin Yao <yao.jin@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200324220711.6025-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-top.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-top.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index ddab103af8c7..487737a725e9 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -53,6 +53,11 @@ Default is to monitor all CPUS. --group:: Put the counters into a counter group. +--group-sort-idx:: + Sort the output by the event at the index n in group. If n is invalid, + sort by the first event. It can support multiple groups with different + amount of events. WARNING: This should be used on grouped events. + -F <freq>:: --freq=<freq>:: Profile at this frequency. Use 'max' to use the currently maximum |