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| author |   Jiri Olsa <jolsa@kernel.org> | 2018-01-07 17:03:53 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-01-10 12:00:39 -0300 |
| commit | 3d7c27b6dbca4c90e7d921b45c2240e7c3cb92a2 (patch) | |
| tree | ecb6ee74ee84e5fa1e720f1994f6fc223014c345 /tools/perf/Documentation | |
| parent | perf script: Add support to display sample misc field (diff) | |
| download | linux-dev-3d7c27b6dbca4c90e7d921b45c2240e7c3cb92a2.tar.xz linux-dev-3d7c27b6dbca4c90e7d921b45c2240e7c3cb92a2.zip | |
perf script: Add support to display lost events
Adding option to display lost events:
$ perf script --show-lost-events ...
mplayer 13810 [002] 468011.402396: 100 cycles:ppp: ff..
mplayer 13810 [002] 468011.402396: PERF_RECORD_LOST lost 3880
mplayer 13810 [002] 468011.402397: 100 cycles:ppp: ff..
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180107160356.28203-10-jolsa@kernel.org
[ Use PRIu64 when printing u64 values, fixing the build in some arches ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
| -rw-r--r-- | tools/perf/Documentation/perf-script.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 93ae8d60e3d3..806ec6391fd6 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -300,6 +300,9 @@ OPTIONS Display context switch events i.e. events of type PERF_RECORD_SWITCH or PERF_RECORD_SWITCH_CPU_WIDE. +--show-lost-events + Display lost events i.e. events of type PERF_RECORD_LOST. + --demangle:: Demangle symbol names to human readable form. It's enabled by default, disable with --no-demangle. |