diff options
| author | Ian Rogers <irogers@google.com> | 2024-01-03 09:01:59 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2024-01-03 17:55:01 -0300 |
| commit | ec5257d99e6894d65fae772ca43c53b3d6855115 (patch) | |
| tree | 56e839f440b5bb402358a44c43cc7dd9e12e72ce /tools/perf | |
| parent | eb00697b91646de22d6d9b4e6a5fadf4495fdf69 (diff) | |
perf x86 test: Add hybrid test for conflicting legacy/sysfs event
The cpu-cycles event is both a legacy event and declared in
/sys/devices/cpu_core/events/cpu-cycles. The cycles event is a legacy
event but with no sysfs version.
Add a test that the sysfs version is preferred to the legacy for
cpu-cycles, while for cycles we use the legacy version.
Suggested-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240103170159.1435753-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/arch/x86/tests/hybrid.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/perf/arch/x86/tests/hybrid.c b/tools/perf/arch/x86/tests/hybrid.c index 05a5f81e8167..40f5d17fedab 100644 --- a/tools/perf/arch/x86/tests/hybrid.c +++ b/tools/perf/arch/x86/tests/hybrid.c @@ -163,6 +163,24 @@ static int test__checkevent_pmu(struct evlist *evlist) return TEST_OK; } +static int test__hybrid_hw_group_event_2(struct evlist *evlist) +{ + struct evsel *evsel, *leader; + + evsel = leader = evlist__first(evlist); + TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->core.nr_entries); + TEST_ASSERT_VAL("wrong type", PERF_TYPE_HARDWARE == evsel->core.attr.type); + TEST_ASSERT_VAL("wrong hybrid type", test_hybrid_type(evsel, PERF_TYPE_RAW)); + TEST_ASSERT_VAL("wrong config", test_config(evsel, PERF_COUNT_HW_CPU_CYCLES)); + TEST_ASSERT_VAL("wrong leader", evsel__has_leader(evsel, leader)); + + evsel = evsel__next(evsel); + TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type); + TEST_ASSERT_VAL("wrong config", evsel->core.attr.config == 0x3c); + TEST_ASSERT_VAL("wrong leader", evsel__has_leader(evsel, leader)); + return TEST_OK; +} + struct evlist_test { const char *name; bool (*valid)(void); @@ -215,6 +233,11 @@ static const struct evlist_test test__hybrid_events[] = { .check = test__hybrid_cache_event, /* 8 */ }, + { + .name = "{cpu_core/cycles/,cpu_core/cpu-cycles/}", + .check = test__hybrid_hw_group_event_2, + /* 9 */ + }, }; static int test_event(const struct evlist_test *e) |