[PATCH v5 23/25] perf test parse-events: Without a PMU use cpu-cycles rather than cycles

Ian Rogers posted 25 patches 1 week, 1 day ago
There is a newer version of this series
[PATCH v5 23/25] perf test parse-events: Without a PMU use cpu-cycles rather than cycles
Posted by Ian Rogers 1 week, 1 day ago
Without a PMU perf matches an event against any PMU with the
event. Unfortunately some PMU drivers advertise a "cycles" event which
is typically just a core event. Switch to using "cpu-cycles" which is
an indentical legacy event but avoids the multiple PMU confusion
introduced by the PMU drivers. Note, on x86 cpu-cycles is also a sysfs
event but cycles isn't.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/parse-events.c | 57 +++++++++++++++++----------------
 1 file changed, 30 insertions(+), 27 deletions(-)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 4f197f34621b..8a48a671e593 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -585,9 +585,10 @@ static int test__checkevent_pmu(struct evlist *evlist)
 {
 
 	struct evsel *evsel = evlist__first(evlist);
+	struct perf_pmu *core_pmu = perf_pmus__find_core_pmu();
 
 	TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->core.nr_entries);
-	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type);
+	TEST_ASSERT_VAL("wrong type", core_pmu->type == evsel->core.attr.type);
 	TEST_ASSERT_VAL("wrong config",    test_config(evsel, 10));
 	TEST_ASSERT_VAL("wrong config1",    1 == evsel->core.attr.config1);
 	TEST_ASSERT_VAL("wrong config2",    3 == evsel->core.attr.config2);
@@ -651,14 +652,14 @@ static int test__checkevent_pmu_name(struct evlist *evlist)
 
 	/* default_core/config=1,name=krava/u */
 	TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->core.nr_entries);
-	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type);
+	TEST_ASSERT_VAL("wrong type", core_pmu->type == evsel->core.attr.type);
 	TEST_ASSERT_VAL("wrong config", 1 == evsel->core.attr.config);
 	TEST_ASSERT_VAL("wrong name", evsel__name_is(evsel, "krava"));
 
 	/* default_core/config=2/u" */
 	evsel = evsel__next(evsel);
 	TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->core.nr_entries);
-	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type);
+	TEST_ASSERT_VAL("wrong type", core_pmu->type == evsel->core.attr.type);
 	TEST_ASSERT_VAL("wrong config", 2 == evsel->core.attr.config);
 	snprintf(buf, sizeof(buf), "%s/config=2/u", core_pmu->name);
 	TEST_ASSERT_VAL("wrong name", evsel__name_is(evsel, buf));
@@ -669,10 +670,11 @@ static int test__checkevent_pmu_name(struct evlist *evlist)
 static int test__checkevent_pmu_partial_time_callgraph(struct evlist *evlist)
 {
 	struct evsel *evsel = evlist__first(evlist);
+	struct perf_pmu *core_pmu = perf_pmus__find_core_pmu();
 
 	/* default_core/config=1,call-graph=fp,time,period=100000/ */
 	TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->core.nr_entries);
-	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type);
+	TEST_ASSERT_VAL("wrong type", core_pmu->type == evsel->core.attr.type);
 	TEST_ASSERT_VAL("wrong config", 1 == evsel->core.attr.config);
 	/*
 	 * The period, time and callgraph value gets configured within evlist__config,
@@ -684,7 +686,7 @@ static int test__checkevent_pmu_partial_time_callgraph(struct evlist *evlist)
 
 	/* default_core/config=2,call-graph=no,time=0,period=2000/ */
 	evsel = evsel__next(evsel);
-	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type);
+	TEST_ASSERT_VAL("wrong type", core_pmu->type == evsel->core.attr.type);
 	TEST_ASSERT_VAL("wrong config", 2 == evsel->core.attr.config);
 	/*
 	 * The period, time and callgraph value gets configured within evlist__config,
@@ -700,11 +702,12 @@ static int test__checkevent_pmu_partial_time_callgraph(struct evlist *evlist)
 static int test__checkevent_pmu_events(struct evlist *evlist)
 {
 	struct evsel *evsel;
+	struct perf_pmu *core_pmu = perf_pmus__find_core_pmu();
 
 	TEST_ASSERT_VAL("wrong number of entries", 1 <= evlist->core.nr_entries);
 
 	evlist__for_each_entry(evlist, evsel) {
-		TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->core.attr.type ||
+		TEST_ASSERT_VAL("wrong type", core_pmu->type == evsel->core.attr.type ||
 				!strncmp(evsel__name(evsel), evsel->pmu->name,
 					 strlen(evsel->pmu->name)));
 		TEST_ASSERT_VAL("wrong exclude_user", !evsel->core.attr.exclude_user);
@@ -1603,7 +1606,7 @@ static int test__checkevent_complex_name(struct evlist *evlist)
 
 	TEST_ASSERT_VAL("wrong complex name parsing",
 			evsel__name_is(evsel,
-				       "COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks"));
+				       "COMPLEX_CYCLES_NAME:orig=cpu-cycles,desc=chip-clock-ticks"));
 	return TEST_OK;
 }
 
@@ -1740,7 +1743,7 @@ static const struct evlist_test test__events[] = {
 		/* 4 */
 	},
 	{
-		.name  = "cycles/period=100000,config2/",
+		.name  = "cpu-cycles/period=100000,config2/",
 		.check = test__checkevent_symbolic_name_config,
 		/* 5 */
 	},
@@ -1855,27 +1858,27 @@ static const struct evlist_test test__events[] = {
 		/* 7 */
 	},
 	{
-		.name  = "{instructions:k,cycles:upp}",
+		.name  = "{instructions:k,cpu-cycles:upp}",
 		.check = test__group1,
 		/* 8 */
 	},
 	{
-		.name  = "{faults:k,branches}:u,cycles:k",
+		.name  = "{faults:k,branches}:u,cpu-cycles:k",
 		.check = test__group2,
 		/* 9 */
 	},
 	{
-		.name  = "group1{syscalls:sys_enter_openat:H,cycles:kppp},group2{cycles,1:3}:G,instructions:u",
+		.name  = "group1{syscalls:sys_enter_openat:H,cpu-cycles:kppp},group2{cpu-cycles,1:3}:G,instructions:u",
 		.check = test__group3,
 		/* 0 */
 	},
 	{
-		.name  = "{cycles:u,instructions:kp}:p",
+		.name  = "{cpu-cycles:u,instructions:kp}:p",
 		.check = test__group4,
 		/* 1 */
 	},
 	{
-		.name  = "{cycles,instructions}:G,{cycles:G,instructions:G},cycles",
+		.name  = "{cpu-cycles,instructions}:G,{cpu-cycles:G,instructions:G},cpu-cycles",
 		.check = test__group5,
 		/* 2 */
 	},
@@ -1885,27 +1888,27 @@ static const struct evlist_test test__events[] = {
 		/* 3 */
 	},
 	{
-		.name  = "{cycles,cache-misses:G}:H",
+		.name  = "{cpu-cycles,cache-misses:G}:H",
 		.check = test__group_gh1,
 		/* 4 */
 	},
 	{
-		.name  = "{cycles,cache-misses:H}:G",
+		.name  = "{cpu-cycles,cache-misses:H}:G",
 		.check = test__group_gh2,
 		/* 5 */
 	},
 	{
-		.name  = "{cycles:G,cache-misses:H}:u",
+		.name  = "{cpu-cycles:G,cache-misses:H}:u",
 		.check = test__group_gh3,
 		/* 6 */
 	},
 	{
-		.name  = "{cycles:G,cache-misses:H}:uG",
+		.name  = "{cpu-cycles:G,cache-misses:H}:uG",
 		.check = test__group_gh4,
 		/* 7 */
 	},
 	{
-		.name  = "{cycles,cache-misses,branch-misses}:S",
+		.name  = "{cpu-cycles,cache-misses,branch-misses}:S",
 		.check = test__leader_sample1,
 		/* 8 */
 	},
@@ -1920,7 +1923,7 @@ static const struct evlist_test test__events[] = {
 		/* 0 */
 	},
 	{
-		.name  = "{cycles,cache-misses,branch-misses}:D",
+		.name  = "{cpu-cycles,cache-misses,branch-misses}:D",
 		.check = test__pinned_group,
 		/* 1 */
 	},
@@ -1958,7 +1961,7 @@ static const struct evlist_test test__events[] = {
 		/* 6 */
 	},
 	{
-		.name  = "task-clock:P,cycles",
+		.name  = "task-clock:P,cpu-cycles",
 		.check = test__checkevent_precise_max_modifier,
 		/* 7 */
 	},
@@ -1989,17 +1992,17 @@ static const struct evlist_test test__events[] = {
 		/* 2 */
 	},
 	{
-		.name  = "cycles/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks'/Duk",
+		.name  = "cpu-cycles/name='COMPLEX_CYCLES_NAME:orig=cpu-cycles,desc=chip-clock-ticks'/Duk",
 		.check = test__checkevent_complex_name,
 		/* 3 */
 	},
 	{
-		.name  = "cycles//u",
+		.name  = "cpu-cycles//u",
 		.check = test__sym_event_slash,
 		/* 4 */
 	},
 	{
-		.name  = "cycles:k",
+		.name  = "cpu-cycles:k",
 		.check = test__sym_event_dc,
 		/* 5 */
 	},
@@ -2009,17 +2012,17 @@ static const struct evlist_test test__events[] = {
 		/* 6 */
 	},
 	{
-		.name  = "{cycles,cache-misses,branch-misses}:e",
+		.name  = "{cpu-cycles,cache-misses,branch-misses}:e",
 		.check = test__exclusive_group,
 		/* 7 */
 	},
 	{
-		.name  = "cycles/name=name/",
+		.name  = "cpu-cycles/name=name/",
 		.check = test__term_equal_term,
 		/* 8 */
 	},
 	{
-		.name  = "cycles/name=l1d/",
+		.name  = "cpu-cycles/name=l1d/",
 		.check = test__term_equal_legacy,
 		/* 9 */
 	},
@@ -2117,7 +2120,7 @@ static const struct evlist_test test__events_pmu[] = {
 		/* 2 */
 	},
 	{
-		.name  = "default_core/name='COMPLEX_CYCLES_NAME:orig=cycles,desc=chip-clock-ticks',period=0x1,event=0x2/ukp",
+		.name  = "default_core/name='COMPLEX_CYCLES_NAME:orig=cpu-cycles,desc=chip-clock-ticks',period=0x1,event=0x2/ukp",
 		.valid = test__pmu_default_core_event_valid,
 		.check = test__checkevent_complex_name,
 		/* 3 */
-- 
2.51.0.534.gc79095c0ca-goog