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Message-ID: <20250923041844.400164-24-irogers@google.com>
Date: Mon, 22 Sep 2025 21:18:42 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>,
Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>,
Kan Liang <kan.liang@...ux.intel.com>, James Clark <james.clark@...aro.org>,
Xu Yang <xu.yang_2@....com>, Thomas Falcon <thomas.falcon@...el.com>,
Andi Kleen <ak@...ux.intel.com>, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org, bpf@...r.kernel.org,
Atish Patra <atishp@...osinc.com>, Beeman Strong <beeman@...osinc.com>, Leo Yan <leo.yan@....com>,
Vince Weaver <vincent.weaver@...ne.edu>
Subject: [PATCH v5 23/25] perf test parse-events: Without a PMU use cpu-cycles
rather than cycles
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@...gle.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
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