korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-12 13:34:10 +08:00
Code Issues Packages Projects Releases Wiki Activity

perf x86 test: Add hybrid test for conflicting legacy/sysfs event

Browse Source 
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>
This commit is contained in:
Ian Rogers 2024-01-03 09:01:59 -08:00 committed by Arnaldo Carvalho de Melo
parent eb00697b91
commit ec5257d99e
1 changed files with 23 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
tools/perf/arch/x86/tests/hybrid.c
View File

@ -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)