Commit ffe59788 authored Oct 07, 2014 by Kan Liang Committed by Arnaldo Carvalho de Melo Oct 15, 2014

perf test: Add test case for pmu event new style format



Add test case in automated tests suite. It checks not only the two types
of pmu event stytle formats "pmu_event_name" and "cpu/pmu_event_name/",
but also the different formats mixtures which are more likely to trigger
parse issue.

The patch set including this one has been tested by the perf automated
test:

   ./perf test parse -v"

On haswell, ivybridge and Romley platform.

The patch set also has been tested on haswell by the following script.

Note: please make sure that your test system support TSX and
L1-dcache-loads events. Otherwise, you may want to change the events to
other pmu events.

  [lk@localhost ~]$ cat perf_style_test.sh
  # hardware events + kernel pmu event with different style
  perf stat -x, -e cycles,mem-stores,tx-start sleep 2
  perf stat -x, -e cpu-cycles,cycles-ct,cycles-t sleep 2
  perf stat -x, -e cycles,cpu/cycles-ct/,cpu/cycles-t/ sleep 2
  perf stat -x, -e instructions,cpu/tx-start/ sleep 2
  perf stat -x, -e '{cycles,tx-start}' sleep 2
  perf stat -x, -e '{cycles,cpu/tx-start/}' sleep 2

  # HW Cache event + kernel pmu event with different style
  perf stat -x, -e L1-dcache-loads,cpu/mem-stores/,tx-start sleep 2
  perf stat -x, -e L1-dcache-loads,mem-stores,cpu/tx-start/ sleep 2
  perf stat -x, -e '{L1-dcache-loads,mem-stores}' sleep 2
  perf stat -x, -e '{L1-dcache-loads,cpu/tx-start/}' sleep 2

  # Raw event + kernel pmu event with different style:
  perf stat -x, -e cpu/event=0xc0,umask=0x00/,mem-loads,cpu/mem-stores/ sleep 2
  perf stat -x, -e cpu/event=0xc0,umask=0x00/,tx-start,cpu/el-start/ sleep 2
  perf stat -x, -e '{cpu/event=0xc0,umask=0x00/,tx-start}' sleep 2

Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1412694532-23391-5-git-send-email-kan.liang@intel.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent ba32a451

tools/perf/tests/parse-events.c

+36 −0

Original line number	Diff line number	Diff line
		@@ -457,6 +457,36 @@ static int test__checkevent_pmu_events(struct perf_evlist *evlist)
		return 0;
		}


		static int test__checkevent_pmu_events_mix(struct perf_evlist *evlist)
		{
		struct perf_evsel *evsel = perf_evlist__first(evlist);

		/* pmu-event:u */
		TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
		TEST_ASSERT_VAL("wrong exclude_user",
		!evsel->attr.exclude_user);
		TEST_ASSERT_VAL("wrong exclude_kernel",
		evsel->attr.exclude_kernel);
		TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
		TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
		TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned);

		/* cpu/pmu-event/u*/
		evsel = perf_evsel__next(evsel);
		TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
		TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
		TEST_ASSERT_VAL("wrong exclude_user",
		!evsel->attr.exclude_user);
		TEST_ASSERT_VAL("wrong exclude_kernel",
		evsel->attr.exclude_kernel);
		TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
		TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
		TEST_ASSERT_VAL("wrong pinned", !evsel->attr.pinned);

		return 0;
		}

		static int test__checkterms_simple(struct list_head *terms)
		{
		struct parse_events_term *term;
		@@ -1554,6 +1584,12 @@ static int test_pmu_events(void)
		e.check = test__checkevent_pmu_events;

		ret = test_event(&e);
		if (ret)
		break;
		snprintf(name, MAX_NAME, "%s:u,cpu/event=%s/u", ent->d_name, ent->d_name);
		e.name = name;
		e.check = test__checkevent_pmu_events_mix;
		ret = test_event(&e);
		#undef MAX_NAME
		}

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