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| author | Namhyung Kim <namhyung@kernel.org> | 2022-09-23 20:31:40 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-04 14:55:22 +0300 |
| commit | fd941521e81fd24e4ab164f88513612fb5f3af85 (patch) | |
| tree | a8be559d3b025265b2b3938c2f97fcb00ccb4711 /tools/perf/Documentation/perf-inject.txt | |
| parent | d031a00a29b2b2a6ad99c41fadb1ea3c0dc5046c (diff) | |
| download | linux-fd941521e81fd24e4ab164f88513612fb5f3af85.tar.xz | |
perf inject: Clarify build-id options a little bit
Update the documentation of --build-id and --buildid-all options to
clarify the difference between them. The former requires full sample
processing to find which DSOs are actually used. While the latter simply
injects every DSO's build-id from MMAP{,2} records, skipping SAMPLEs.
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220923173142.805896-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation/perf-inject.txt')
| -rw-r--r-- | tools/perf/Documentation/perf-inject.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-inject.txt b/tools/perf/Documentation/perf-inject.txt index 70e2ac3cc91a..c972032f4ca0 100644 --- a/tools/perf/Documentation/perf-inject.txt +++ b/tools/perf/Documentation/perf-inject.txt @@ -25,10 +25,12 @@ OPTIONS ------- -b:: --build-ids:: - Inject build-ids into the output stream + Inject build-ids of DSOs hit by samples into the output stream. + This means it needs to process all SAMPLE records to find the DSOs. --buildid-all:: - Inject build-ids of all DSOs into the output stream + Inject build-ids of all DSOs into the output stream regardless of hits + and skip SAMPLE processing. --known-build-ids=:: Override build-ids to inject using these comma-separated pairs of |