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From: Ian Rogers <irogers@google.com>
To: James Clark <james.clark@linaro.org>,
	Peter Zijlstra <peterz@infradead.org>,
	 Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	 Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	 Adrian Hunter <adrian.hunter@intel.com>,
	Xu Yang <xu.yang_2@nxp.com>,
	 Thomas Falcon <thomas.falcon@intel.com>,
	Andi Kleen <ak@linux.intel.com>,
	 linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	 Atish Patra <atishp@rivosinc.com>,
	Beeman Strong <beeman@rivosinc.com>, Leo Yan <leo.yan@arm.com>,
	 Vince Weaver <vincent.weaver@maine.edu>
Cc: Ian Rogers <irogers@google.com>
Subject: [PATCH v7 24/27] perf test: Switch cycles event to cpu-cycles
Date: Sun,  5 Oct 2025 11:24:27 -0700	[thread overview]
Message-ID: <20251005182430.2791371-25-irogers@google.com> (raw)
In-Reply-To: <20251005182430.2791371-1-irogers@google.com>

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. As tests assume a core event, switch
to use "cpu-cycles" that avoids the overloaded "cycles" event on
troublesome PMUs and is so far not overloaded. Note, on x86 this
changes a legacy event into a sysfs one.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/code-reading.c     | 2 +-
 tools/perf/tests/keep-tracking.c    | 2 +-
 tools/perf/tests/perf-time-to-tsc.c | 4 ++--
 tools/perf/tests/switch-tracking.c  | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 9c2091310191..4574a7e528ec 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -649,7 +649,7 @@ static int do_test_code_reading(bool try_kcore)
 	struct map *map;
 	bool have_vmlinux, have_kcore;
 	struct dso *dso;
-	const char *events[] = { "cycles", "cycles:u", "cpu-clock", "cpu-clock:u", NULL };
+	const char *events[] = { "cpu-cycles", "cpu-cycles:u", "cpu-clock", "cpu-clock:u", NULL };
 	int evidx = 0;
 	struct perf_env host_env;
 
diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index eafb49eb0b56..729cc9cc1cb7 100644
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -90,7 +90,7 @@ static int test__keep_tracking(struct test_suite *test __maybe_unused, int subte
 	perf_evlist__set_maps(&evlist->core, cpus, threads);
 
 	CHECK__(parse_event(evlist, "dummy:u"));
-	CHECK__(parse_event(evlist, "cycles:u"));
+	CHECK__(parse_event(evlist, "cpu-cycles:u"));
 
 	evlist__config(evlist, &opts, NULL);
 
diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/tests/perf-time-to-tsc.c
index d4437410c99f..cca41bd37ae3 100644
--- a/tools/perf/tests/perf-time-to-tsc.c
+++ b/tools/perf/tests/perf-time-to-tsc.c
@@ -101,11 +101,11 @@ static int test__perf_time_to_tsc(struct test_suite *test __maybe_unused, int su
 
 	perf_evlist__set_maps(&evlist->core, cpus, threads);
 
-	CHECK__(parse_event(evlist, "cycles:u"));
+	CHECK__(parse_event(evlist, "cpu-cycles:u"));
 
 	evlist__config(evlist, &opts, NULL);
 
-	/* For hybrid "cycles:u", it creates two events */
+	/* For hybrid "cpu-cycles:u", it creates two events */
 	evlist__for_each_entry(evlist, evsel) {
 		evsel->core.attr.comm = 1;
 		evsel->core.attr.disabled = 1;
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 5be294014d3b..15791fcb76b2 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -332,7 +332,7 @@ static int process_events(struct evlist *evlist,
 static int test__switch_tracking(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
 {
 	const char *sched_switch = "sched:sched_switch";
-	const char *cycles = "cycles:u";
+	const char *cycles = "cpu-cycles:u";
 	struct switch_tracking switch_tracking = { .tids = NULL, };
 	struct record_opts opts = {
 		.mmap_pages	     = UINT_MAX,
-- 
2.51.0.618.g983fd99d29-goog


  parent reply	other threads:[~2025-10-05 18:25 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-05 18:24 [PATCH v7 00/27] Legacy hardware/cache events as json Ian Rogers
2025-10-05 18:24 ` [PATCH v7 01/27] perf parse-events: Fix legacy cache events if event is duplicated in a PMU Ian Rogers
2025-10-05 18:24 ` [PATCH v7 02/27] perf perf_api_probe: Avoid scanning all PMUs, try software PMU first Ian Rogers
2025-10-05 18:24 ` [PATCH v7 03/27] perf stat: Avoid wildcarding PMUs for default events Ian Rogers
2025-10-05 18:24 ` [PATCH v7 04/27] perf record: Skip don't fail for events that don't open Ian Rogers
2025-10-05 18:24 ` [PATCH v7 05/27] perf jevents: Support copying the source json files to OUTPUT Ian Rogers
2025-10-08 11:10   ` James Clark
2025-10-08 14:58     ` Ian Rogers
2025-10-08 15:14       ` James Clark
2025-10-08 21:43         ` Ian Rogers
2025-10-05 18:24 ` [PATCH v7 06/27] perf pmu: Don't eagerly parse event terms Ian Rogers
2025-10-05 18:24 ` [PATCH v7 07/27] perf parse-events: Remove unused FILE input argument to scanner Ian Rogers
2025-10-05 18:24 ` [PATCH v7 08/27] perf pmu: Use fd rather than FILE from new_alias Ian Rogers
2025-10-05 18:24 ` [PATCH v7 09/27] perf pmu: Factor term parsing into a perf_event_attr into a helper Ian Rogers
2025-10-05 18:24 ` [PATCH v7 10/27] perf parse-events: Add terms for legacy hardware and cache config values Ian Rogers
2025-10-05 18:24 ` [PATCH v7 11/27] perf jevents: Add legacy json terms and default_core event table helper Ian Rogers
2025-10-05 18:24 ` [PATCH v7 12/27] perf pmu: Add and use legacy_terms in alias information Ian Rogers
2025-10-05 18:24 ` [PATCH v7 13/27] perf jevents: Add legacy-hardware and legacy-cache json Ian Rogers
2025-10-05 18:24 ` [PATCH v7 14/27] perf print-events: Remove print_hwcache_events Ian Rogers
2025-10-05 18:24 ` [PATCH v7 15/27] perf print-events: Remove print_symbol_events Ian Rogers
2025-10-05 18:24 ` [PATCH v7 16/27] perf parse-events: Remove hard coded legacy hardware and cache parsing Ian Rogers
2025-10-05 18:24 ` [PATCH v7 17/27] perf record: Use evlist__new_default when no events specified Ian Rogers
2025-10-05 18:24 ` [PATCH v7 18/27] perf top: " Ian Rogers
2025-10-05 18:24 ` [PATCH v7 19/27] perf evlist: Avoid scanning all PMUs for evlist__new_default Ian Rogers
2025-10-05 18:24 ` [PATCH v7 20/27] perf evsel: Improvements to __evsel__match Ian Rogers
2025-10-05 18:24 ` [PATCH v7 21/27] perf test parse-events: Use evsel__match for legacy events Ian Rogers
2025-10-05 18:24 ` [PATCH v7 22/27] perf test parse-events: Without a PMU use cpu-cycles rather than cycles Ian Rogers
2025-10-05 18:24 ` [PATCH v7 23/27] perf test parse-events: Remove cpu PMU requirement Ian Rogers
2025-10-05 18:24 ` Ian Rogers [this message]
2025-10-05 18:24 ` [PATCH v7 25/27] perf test: Clean up test_..config helpers Ian Rogers
2025-10-05 18:24 ` [PATCH v7 26/27] perf test parse-events: Add evlist test helper Ian Rogers
2025-10-05 18:24 ` [PATCH v7 27/27] perf test parse-events: Add evsel " Ian Rogers
2025-10-08 11:06 ` [PATCH v7 00/27] Legacy hardware/cache events as json James Clark
2025-10-08 14:53   ` Ian Rogers
2025-10-15 15:53 ` Namhyung Kim
2025-10-15 17:39   ` James Clark
2025-10-15 21:24     ` Ian Rogers
2025-10-16 10:29       ` James Clark
2025-10-20 16:10         ` James Clark

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