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| author | Namhyung Kim <namhyung@kernel.org> | 2022-12-19 12:17:29 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-12-21 14:52:39 -0300 |
| commit | 529772c4df286159fea453957a6052e20b90e8a8 (patch) | |
| tree | 4c40a895970292a77994ce4111edc6df44d045fe /tools/perf/builtin-lock.c | |
| parent | b4a7eff93c39f985b33ac114f83ac5b325f42151 (diff) | |
| download | linux-529772c4df286159fea453957a6052e20b90e8a8.tar.bz2 | |
perf lock contention: Support lock type filtering for BPF
Likewise, add type_filter BPF hash map and check it when user gave a
lock type filter.
$ sudo ./perf lock con -ab -Y rwlock -- ./perf bench sched messaging
# Running 'sched/messaging' benchmark:
# 20 sender and receiver processes per group
# 10 groups == 400 processes run
Total time: 0.203 [sec]
contended total wait max wait avg wait type caller
15 156.19 us 19.45 us 10.41 us rwlock:W do_exit+0x36d
1 11.12 us 11.12 us 11.12 us rwlock:R do_wait+0x8b
1 5.09 us 5.09 us 5.09 us rwlock:W release_task+0x6e
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Blake Jones <blakejones@google.com>
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: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221219201732.460111-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-lock.c')
| -rw-r--r-- | tools/perf/builtin-lock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c index c73d02082cdf..171b0fb5c974 100644 --- a/tools/perf/builtin-lock.c +++ b/tools/perf/builtin-lock.c @@ -1689,6 +1689,7 @@ static int __cmd_contention(int argc, const char **argv) .map_nr_entries = bpf_map_entries, .max_stack = max_stack_depth, .stack_skip = stack_skip, + .filters = &filters, }; session = perf_session__new(use_bpf ? NULL : &data, &eops); |