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>
diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c
index 516ecd9..b49c2ee 100644
--- a/tools/perf/util/parse-events-test.c
+++ b/tools/perf/util/parse-events-test.c
@@ -443,6 +443,23 @@
return 0;
}
+static int test__checkevent_pmu_events(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+
+ evsel = list_entry(evlist->entries.next, struct perf_evsel, node);
+ TEST_ASSERT_VAL("wrong number of entries", 1 == 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);
+
+ return 0;
+}
+
static int test__checkterms_simple(struct list_head *terms)
{
struct parse_events__term *term;
@@ -1024,6 +1041,51 @@
return !ret;
}
+static int test_pmu_events(void)
+{
+ struct stat st;
+ char path[PATH_MAX];
+ struct dirent *ent;
+ DIR *dir;
+ int ret;
+
+ snprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu/events/",
+ sysfs_find_mountpoint());
+
+ ret = stat(path, &st);
+ if (ret) {
+ pr_debug("ommiting PMU cpu events tests\n");
+ return 0;
+ }
+
+ dir = opendir(path);
+ if (!dir) {
+ pr_debug("can't open pmu event dir");
+ return -1;
+ }
+
+ while (!ret && (ent = readdir(dir))) {
+#define MAX_NAME 100
+ struct test__event_st e;
+ char name[MAX_NAME];
+
+ if (!strcmp(ent->d_name, ".") ||
+ !strcmp(ent->d_name, ".."))
+ continue;
+
+ snprintf(name, MAX_NAME, "cpu/event=%s/u", ent->d_name);
+
+ e.name = name;
+ e.check = test__checkevent_pmu_events;
+
+ ret = test_event(&e);
+#undef MAX_NAME
+ }
+
+ closedir(dir);
+ return ret;
+}
+
int parse_events__test(void)
{
int ret1, ret2 = 0;
@@ -1040,6 +1102,12 @@
if (test_pmu())
TEST_EVENTS(test__events_pmu);
+ if (test_pmu()) {
+ int ret = test_pmu_events();
+ if (ret)
+ return ret;
+ }
+
ret1 = test_terms(test__terms, ARRAY_SIZE(test__terms));
if (!ret2)
ret2 = ret1;