diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2022-10-03 13:46:46 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-06 08:03:53 -0300 |
| commit | 182bb594e0678b3ceac99f4ec3daa5d22ea3d0ce (patch) | |
| tree | 4ae7c492eaae49cb79ce36696357f1027d3e4dc6 /tools/perf/tests | |
| parent | 60ea006f72512fd7c36f16cdbe91f4fc284f8115 (diff) | |
| download | linux-182bb594e0678b3ceac99f4ec3daa5d22ea3d0ce.tar.gz | |
perf tools: Add evlist__add_sched_switch()
Add a help to create a system-wide sched_switch event. One merit is
that it sets the system-wide bit before adding it to evlist so that
the libperf can handle the cpu and thread maps correctly.
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: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221003204647.1481128-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests')
| -rw-r--r-- | tools/perf/tests/switch-tracking.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c index 2d46af9ef935..87f565c7f650 100644 --- a/tools/perf/tests/switch-tracking.c +++ b/tools/perf/tests/switch-tracking.c @@ -6,6 +6,7 @@ #include <time.h> #include <stdlib.h> #include <linux/zalloc.h> +#include <linux/err.h> #include <perf/cpumap.h> #include <perf/evlist.h> #include <perf/mmap.h> @@ -398,19 +399,13 @@ static int test__switch_tracking(struct test_suite *test __maybe_unused, int sub goto out; } - err = parse_event(evlist, sched_switch); - if (err) { - pr_debug("Failed to parse event %s\n", sched_switch); + switch_evsel = evlist__add_sched_switch(evlist, true); + if (IS_ERR(switch_evsel)) { + err = PTR_ERR(switch_evsel); + pr_debug("Failed to create event %s\n", sched_switch); goto out_err; } - switch_evsel = evlist__last(evlist); - - evsel__set_sample_bit(switch_evsel, CPU); - evsel__set_sample_bit(switch_evsel, TIME); - - switch_evsel->core.system_wide = true; - switch_evsel->no_aux_samples = true; switch_evsel->immediate = true; /* Test moving an event to the front */ |