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| author |   Adrian Hunter <adrian.hunter@intel.com> | 2022-06-10 14:33:15 +0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-06-23 11:54:22 -0300 |
| commit | 3812d2987733c5a00e103be4e23d63ec9342043a (patch) | |
| tree | 88e0b19579cca4dc39c4748430c3795ee81c985a /tools/perf/builtin-inject.c | |
| parent | perf record: Add new option to sample identifier (diff) | |
| download | linux-dev-3812d2987733c5a00e103be4e23d63ec9342043a.tar.xz linux-dev-3812d2987733c5a00e103be4e23d63ec9342043a.zip | |
perf record: Add finished init event
In preparation for recording sideband events in a virtual machine guest so
that they can be injected into a host perf.data file.
This is needed to enable injecting events after the initial synthesized
user events (that have an all zero id sample) but before regular events.
Committer notes:
Add entry about PERF_RECORD_FINISHED_INIT to
tools/perf/Documentation/perf.data-file-format.txt.
Committer testing:
Before:
# perf report -D | grep FINISHED
0 0x5910 [0x8]: PERF_RECORD_FINISHED_ROUND
FINISHED_ROUND events: 1 ( 0.5%)
#
After:
# perf record -- sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.020 MB perf.data (7 samples) ]
# perf report -D | grep FINISHED
0 0x5068 [0x8]: PERF_RECORD_FINISHED_INIT: unhandled!
0 0x5390 [0x8]: PERF_RECORD_FINISHED_ROUND
FINISHED_ROUND events: 1 ( 0.5%)
FINISHED_INIT events: 1 ( 0.5%)
#
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220610113316.6682-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-inject.c')
| -rw-r--r-- | tools/perf/builtin-inject.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index a75bf11585b5..42e2918fd1cc 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -1059,6 +1059,7 @@ int cmd_inject(int argc, const char **argv) .stat = perf_event__repipe_op2_synth, .stat_round = perf_event__repipe_op2_synth, .feature = perf_event__repipe_op2_synth, + .finished_init = perf_event__repipe_op2_synth, .compressed = perf_event__repipe_op4_synth, .auxtrace = perf_event__repipe_auxtrace, }, |