perf test: Add automated tests for pmu sysfs translated events
Add automated tests for all events found under PMU/events directory. Tested events are in the 'cpu/event=xxx/u' format, where 'xxx' is substituted by every event found. The 'event=xxx' term is translated to the cpu specific term. We only check that the event is created (not the real config numbers) and that the modifier is properly set. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Stephane Eranian <eranian@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1349873598-12583-9-git-send-email-jolsa@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -443,6 +443,23 @@ static int test__checkevent_pmu_name(struct perf_evlist *evlist)
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return 0;
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}
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static int test__checkevent_pmu_events(struct perf_evlist *evlist)
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{
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struct perf_evsel *evsel;
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evsel = list_entry(evlist->entries.next, struct perf_evsel, node);
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TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
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TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
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TEST_ASSERT_VAL("wrong exclude_user",
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!evsel->attr.exclude_user);
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TEST_ASSERT_VAL("wrong exclude_kernel",
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evsel->attr.exclude_kernel);
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TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv);
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TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip);
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return 0;
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}
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static int test__checkterms_simple(struct list_head *terms)
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{
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struct parse_events__term *term;
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@ -1024,6 +1041,51 @@ static int test_pmu(void)
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return !ret;
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}
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static int test_pmu_events(void)
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{
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struct stat st;
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char path[PATH_MAX];
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struct dirent *ent;
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DIR *dir;
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int ret;
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snprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu/events/",
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sysfs_find_mountpoint());
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ret = stat(path, &st);
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if (ret) {
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pr_debug("ommiting PMU cpu events tests\n");
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return 0;
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}
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dir = opendir(path);
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if (!dir) {
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pr_debug("can't open pmu event dir");
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return -1;
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}
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while (!ret && (ent = readdir(dir))) {
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#define MAX_NAME 100
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struct test__event_st e;
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char name[MAX_NAME];
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if (!strcmp(ent->d_name, ".") ||
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!strcmp(ent->d_name, ".."))
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continue;
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snprintf(name, MAX_NAME, "cpu/event=%s/u", ent->d_name);
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e.name = name;
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e.check = test__checkevent_pmu_events;
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ret = test_event(&e);
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#undef MAX_NAME
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}
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closedir(dir);
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return ret;
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}
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int parse_events__test(void)
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{
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int ret1, ret2 = 0;
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@ -1040,6 +1102,12 @@ do { \
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if (test_pmu())
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TEST_EVENTS(test__events_pmu);
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if (test_pmu()) {
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int ret = test_pmu_events();
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if (ret)
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return ret;
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}
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ret1 = test_terms(test__terms, ARRAY_SIZE(test__terms));
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if (!ret2)
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ret2 = ret1;
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