Re: [PATCH V2 02/23] libperf evsel: Add perf_evsel__enable_thread()

Arnaldo Carvalho de Melo
2022-05-10T17:19:42Z

Em Fri, May 06, 2022 at 03:25:40PM +0300, Adrian Hunter escreveu:
> Add perf_evsel__enable_thread() as a counterpart to
> perf_evsel__enable_cpu(), to enable all events for a thread.

Thanks, applied.

- Arnaldo

> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
> tools/lib/perf/evsel.c | 15 +++++++++++++++
> tools/lib/perf/include/perf/evsel.h | 1 +
> 2 files changed, 16 insertions(+)
>
> diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
> index 20ae9f5f8b30..c1d58673f6ef 100644
> --- a/tools/lib/perf/evsel.c
> +++ b/tools/lib/perf/evsel.c
> @@ -360,6 +360,21 @@ int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx)
> return perf_evsel__run_ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, cpu_map_idx);
> }
>
> +int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread)
> +{
> + struct perf_cpu cpu __maybe_unused;
> + int idx;
> + int err;
> +
> + perf_cpu_map__for_each_cpu(cpu, idx, evsel->cpus) {
> + err = perf_evsel__ioctl(evsel, PERF_EVENT_IOC_ENABLE, NULL, idx, thread);
> + if (err)
> + return err;
> + }
> +
> + return 0;
> +}
> +
> int perf_evsel__enable(struct perf_evsel *evsel)
> {
> int i;
> diff --git a/tools/lib/perf/include/perf/evsel.h b/tools/lib/perf/include/perf/evsel.h
> index 2a9516b42d15..699c0ed97d34 100644
> --- a/tools/lib/perf/include/perf/evsel.h
> +++ b/tools/lib/perf/include/perf/evsel.h
> @@ -36,6 +36,7 @@ LIBPERF_API int perf_evsel__read(struct perf_evsel *evsel, int cpu_map_idx, int
> struct perf_counts_values *count);
> LIBPERF_API int perf_evsel__enable(struct perf_evsel *evsel);
> LIBPERF_API int perf_evsel__enable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
> +LIBPERF_API int perf_evsel__enable_thread(struct perf_evsel *evsel, int thread);
> LIBPERF_API int perf_evsel__disable(struct perf_evsel *evsel);
> LIBPERF_API int perf_evsel__disable_cpu(struct perf_evsel *evsel, int cpu_map_idx);
> LIBPERF_API struct perf_cpu_map *perf_evsel__cpus(struct perf_evsel *evsel);
> --
> 2.25.1

--

- Arnaldo