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| author | Song Liu <song@kernel.org> | 2021-04-26 00:43:31 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 16:30:58 +0300 |
| commit | 112cb56164bc2108a55aee785d841a35aab0616a (patch) | |
| tree | fec53329a1865ca4f3a26f09e4f74f2b816b1e5b /tools/perf/util/bpf_counter.c | |
| parent | fe3dd8263b9f3912a0f3a2f66c0fdb3987d69a1a (diff) | |
| download | linux-112cb56164bc2108a55aee785d841a35aab0616a.tar.xz | |
perf stat: Introduce config stat.bpf-counter-events
Currently, to use BPF to aggregate perf event counters, the user uses
--bpf-counters option. Enable "use bpf by default" events with a config
option, stat.bpf-counter-events. Events with name in the option will use
BPF.
This also enables mixed BPF event and regular event in the same sesssion.
For example:
perf config stat.bpf-counter-events=instructions
perf stat -e instructions,cs
The second command will use BPF for "instructions" but not "cs".
Signed-off-by: Song Liu <song@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/r/20210425214333.1090950-4-song@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/bpf_counter.c')
| -rw-r--r-- | tools/perf/util/bpf_counter.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c index 5de991ab46af..33b1888103df 100644 --- a/tools/perf/util/bpf_counter.c +++ b/tools/perf/util/bpf_counter.c @@ -790,7 +790,8 @@ int bpf_counter__load(struct evsel *evsel, struct target *target) { if (target->bpf_str) evsel->bpf_counter_ops = &bpf_program_profiler_ops; - else if (target->use_bpf) + else if (target->use_bpf || + evsel__match_bpf_counter_events(evsel->name)) evsel->bpf_counter_ops = &bperf_ops; if (evsel->bpf_counter_ops) |