linux-kernel - [PATCH v5 21/26] perf tests: Support 'Track with sched

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Message-Id: <20210423053541.12521-22-yao.jin@linux.intel.com>
Date:   Fri, 23 Apr 2021 13:35:36 +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 v5 21/26] 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>
---
v5:
 - Drop the variable 'hybrid' and use 'if (perf_pmu__has_hybrid())'
   directly.

 tools/perf/tests/switch-tracking.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 3ebaa758df77..62c0ec21aaa8 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)
 {
@@ -371,7 +372,10 @@ 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 (perf_pmu__has_hybrid())
+		err = parse_events(evlist, "cpu_core/cycles/u", NULL);
+	else
+		err = parse_events(evlist, "cycles:u", NULL);
 	if (err) {
 		pr_debug("Failed to parse event cycles:u\n");
 		goto out_err;
-- 
2.17.1