linux-kernel - [PATCH v3 22/27] perf tests: Support 'Track with sched

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Date:   Mon, 29 Mar 2021 15:00:41 +0800
From:   Jin Yao <yao.jin@...ux.intel.com>
To:     acme@...nel.org, jolsa@...nel.org, peterz@...radead.org,
        mingo@...hat.com, alexander.shishkin@...ux.intel.com
Cc:     Linux-kernel@...r.kernel.org, ak@...ux.intel.com,
        kan.liang@...el.com, yao.jin@...el.com,
        Jin Yao <yao.jin@...ux.intel.com>
Subject: [PATCH v3 22/27] perf tests: Support 'Track with sched_switch' test for hybrid

Since for "cycles:u' on hybrid platform, it creates two "cycles".
So the number of events in evlist is not expected in next test
steps. Now we just use one event "cpu_core/cycles:u/" for hybrid.

  # ./perf test 35
  35: Track with sched_switch                                         : Ok

Signed-off-by: Jin Yao <yao.jin@...ux.intel.com>
---
v3:
 - No functional change.

 tools/perf/tests/switch-tracking.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 3ebaa758df77..3a12176f8c46 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -18,6 +18,7 @@
 #include "record.h"
 #include "tests.h"
 #include "util/mmap.h"
+#include "pmu.h"
 
 static int spin_sleep(void)
 {
@@ -340,6 +341,10 @@ int test__switch_tracking(struct test *test __maybe_unused, int subtest __maybe_
 	struct evsel *switch_evsel, *tracking_evsel;
 	const char *comm;
 	int err = -1;
+	bool hybrid = false;
+
+	if (perf_pmu__has_hybrid())
+		hybrid = true;
 
 	threads = thread_map__new(-1, getpid(), UINT_MAX);
 	if (!threads) {
@@ -371,7 +376,10 @@ int test__switch_tracking(struct test *test __maybe_unused, int subtest __maybe_
 	cpu_clocks_evsel = evlist__last(evlist);
 
 	/* Second event */
-	err = parse_events(evlist, "cycles:u", NULL);
+	if (!hybrid)
+		err = parse_events(evlist, "cycles:u", NULL);
+	else
+		err = parse_events(evlist, "cpu_core/cycles/u", NULL);
 	if (err) {
 		pr_debug("Failed to parse event cycles:u\n");
 		goto out_err;
-- 
2.17.1