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| author | David Ahern <dsahern@gmail.com> | 2013-11-12 09:31:15 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-11-12 16:24:38 -0300 |
| commit | fd2eabaf16984bc75695e43f4b76e6f20ed4ea41 (patch) | |
| tree | 183ed62dbfd9b53d70c05aeecff230f6119d34bc /tools/perf/Documentation | |
| parent | 99ff7150547382ee612c40d8d6a0670ddec7c9fc (diff) | |
| download | op-kernel-dev-fd2eabaf16984bc75695e43f4b76e6f20ed4ea41.zip op-kernel-dev-fd2eabaf16984bc75695e43f4b76e6f20ed4ea41.tar.gz | |
perf trace: Add summary only option
Per request from Pekka make --summary a summary only option meaning do
not show the individual system calls. Add another option to see all
syscalls along with the summary. In addition use 's' and 'S' as
shortcuts for the options.
Requested-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
Tested-by: Pekka Enberg <penberg@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-trace.txt | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index 7b0497f..fae38d9 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -93,9 +93,15 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs. --comm:: Show process COMM right beside its ID, on by default, disable with --no-comm. +-s:: --summary:: - Show a summary of syscalls by thread with min, max, and average times (in - msec) and relative stddev. + Show only a summary of syscalls by thread with min, max, and average times + (in msec) and relative stddev. + +-S:: +--with-summary:: + Show all syscalls followed by a summary by thread with min, max, and + average times (in msec) and relative stddev. --tool_stats:: Show tool stats such as number of times fd->pathname was discovered thru |
