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Date: Wed, 4 Jul 2012 00:00:48 +0200
From: Jiri Olsa <jolsa@...hat.com>
To: acme@...hat.com, a.p.zijlstra@...llo.nl, mingo@...e.hu,
paulus@...ba.org, cjashfor@...ux.vnet.ibm.com, fweisbec@...il.com,
eranian@...gle.com
Cc: linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH 10/10] perf, test: Add automated tests for pmu sysfs translated events
Addint automated tests for following events:
cpu/event=cycles/u
cpu/event=instructions/u
cpu/event=branch_instructions/u
cpu/event=branch_misses/u
cpu/event=bus_cycles/u
cpu/event=cache_misses/u
cpu/event=cache_references/u
cpu/event=ref_cycles/u
cpu/event=stalled_cycles_backend/u
cpu/event=stalled_cycles_frontend/u
/* dash variants */
cpu/event=branch-instructions/u
cpu/event=branch-misses/u
cpu/event=bus-cycles/u
cpu/event=cache-misses/u
cpu/event=cache-references/u
cpu/event=ref-cycles/u
cpu/event=stalled-cycles-backend/u
cpu/event=stalled-cycles-frontend/u
The 'event=xxx' term is translated to the cpu specific term.
We check the final perf_event_attr::config to follow this term.
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
tools/perf/util/parse-events-test.c | 133 +++++++++++++++++++++++++++++++++++
1 file changed, 133 insertions(+)
diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c
index ef5cce0..95a501d 100644
--- a/tools/perf/util/parse-events-test.c
+++ b/tools/perf/util/parse-events-test.c
@@ -431,6 +431,45 @@ static int test__checkevent_pmu_name(struct perf_evlist *evlist)
return 0;
}
+static __u64 get_config(const char *file)
+{
+#define DATASIZE 64
+ char data[DATASIZE];
+ u64 config;
+
+ TEST_ASSERT_VAL("cannot read sysfs events data",
+ !sysfs_read_file(file, data, DATASIZE));
+
+ TEST_ASSERT_VAL("cannot parse sysfs events data",
+ 1 == sscanf(data, "config=0x%" PRIx64 "\n", &config));
+
+ return config;
+#undef DATASIZE
+}
+
+#define TEST__CHECKEVENT_PMU_EVENTS(event) \
+static int test__checkevent_pmu_events_##event(struct perf_evlist *evlist) \
+{ \
+ struct perf_evsel *evsel; \
+ u64 config = get_config("devices/cpu/events/" # event); \
+ 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 config", evsel->attr.config == config); \
+ return 0; \
+}
+
+TEST__CHECKEVENT_PMU_EVENTS(cycles)
+TEST__CHECKEVENT_PMU_EVENTS(instructions)
+TEST__CHECKEVENT_PMU_EVENTS(branch_instructions)
+TEST__CHECKEVENT_PMU_EVENTS(branch_misses)
+TEST__CHECKEVENT_PMU_EVENTS(bus_cycles)
+TEST__CHECKEVENT_PMU_EVENTS(cache_misses)
+TEST__CHECKEVENT_PMU_EVENTS(cache_references)
+TEST__CHECKEVENT_PMU_EVENTS(ref_cycles)
+TEST__CHECKEVENT_PMU_EVENTS(stalled_cycles_backend)
+TEST__CHECKEVENT_PMU_EVENTS(stalled_cycles_frontend)
+
static int test__checkterms_simple(struct list_head *terms)
{
struct parse_events__term *term;
@@ -598,6 +637,82 @@ static struct test__event_st test__events_pmu[] = {
},
};
+static struct test__event_st test__events_pmu_events[] = {
+ [0] = {
+ .name = "cpu/event=cycles/u",
+ .check = test__checkevent_pmu_events_cycles,
+ },
+ [1] = {
+ .name = "cpu/event=instructions/u",
+ .check = test__checkevent_pmu_events_instructions,
+ },
+ [2] = {
+ .name = "cpu/event=branch_instructions/u",
+ .check = test__checkevent_pmu_events_branch_instructions,
+ },
+ [3] = {
+ .name = "cpu/event=branch_misses/u",
+ .check = test__checkevent_pmu_events_branch_misses,
+ },
+ [4] = {
+ .name = "cpu/event=bus_cycles/u",
+ .check = test__checkevent_pmu_events_bus_cycles,
+ },
+ [5] = {
+ .name = "cpu/event=cache_misses/u",
+ .check = test__checkevent_pmu_events_cache_misses,
+ },
+ [6] = {
+ .name = "cpu/event=cache_references/u",
+ .check = test__checkevent_pmu_events_cache_references,
+ },
+ [7] = {
+ .name = "cpu/event=ref_cycles/u",
+ .check = test__checkevent_pmu_events_ref_cycles,
+ },
+ [8] = {
+ .name = "cpu/event=stalled_cycles_backend/u",
+ .check = test__checkevent_pmu_events_stalled_cycles_backend,
+ },
+ [9] = {
+ .name = "cpu/event=stalled_cycles_frontend/u",
+ .check = test__checkevent_pmu_events_stalled_cycles_frontend,
+ },
+ /* dash variants */
+ [10] = {
+ .name = "cpu/event=branch-instructions/u",
+ .check = test__checkevent_pmu_events_branch_instructions,
+ },
+ [11] = {
+ .name = "cpu/event=branch-misses/u",
+ .check = test__checkevent_pmu_events_branch_misses,
+ },
+ [12] = {
+ .name = "cpu/event=bus-cycles/u",
+ .check = test__checkevent_pmu_events_bus_cycles,
+ },
+ [13] = {
+ .name = "cpu/event=cache-misses/u",
+ .check = test__checkevent_pmu_events_cache_misses,
+ },
+ [14] = {
+ .name = "cpu/event=cache-references/u",
+ .check = test__checkevent_pmu_events_cache_references,
+ },
+ [15] = {
+ .name = "cpu/event=ref-cycles/u",
+ .check = test__checkevent_pmu_events_ref_cycles,
+ },
+ [16] = {
+ .name = "cpu/event=stalled-cycles-backend/u",
+ .check = test__checkevent_pmu_events_stalled_cycles_backend,
+ },
+ [17] = {
+ .name = "cpu/event=stalled-cycles-frontend/u",
+ .check = test__checkevent_pmu_events_stalled_cycles_frontend,
+ },
+};
+
struct test__term {
const char *str;
__u32 type;
@@ -709,6 +824,21 @@ static int test_pmu(void)
return !ret;
}
+static int test_pmu_events(void)
+{
+ struct stat st;
+ char path[PATH_MAX];
+ 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 !ret;
+}
+
int parse_events__test(void)
{
int ret;
@@ -725,5 +855,8 @@ do { \
if (test_pmu())
TEST_EVENTS(test__events_pmu);
+ if (test_pmu() && test_pmu_events())
+ TEST_EVENTS(test__events_pmu_events);
+
return test_terms(test__terms, ARRAY_SIZE(test__terms));
}
--
1.7.10.4
--
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