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Message-Id: <20240515060114.3268149-3-irogers@google.com>
Date: Tue, 14 May 2024 23:01:14 -0700
From: Ian Rogers <irogers@...gle.com>
To: Tuan Phan <tuanphan@...amperecomputing.com>, Robin Murphy <robin.murphy@....com>,
Thomas Richter <tmricht@...ux.ibm.com>, Bhaskara Budiredla <bbudiredla@...vell.com>,
Bharat Bhushan <bbhushan2@...vell.com>, 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@....com>,
Ravi Bangoria <ravi.bangoria@....com>, linux-perf-users@...r.kernel.org,
linux-kernel@...r.kernel.org, Will Deacon <will@...nel.org>,
Stephane Eranian <eranian@...gle.com>
Subject: [PATCH v6 2/2] perf tests: Add some pmu core functionality tests
Test behavior of PMU names and comparisons wrt suffixes using Intel
uncore_cha, marvell mrvl_ddr_pmu and S390's cpum_cf as examples.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/tests/pmu.c | 99 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 99 insertions(+)
diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c
index 06cc0e46cb28..cc88b5920c3e 100644
--- a/tools/perf/tests/pmu.c
+++ b/tools/perf/tests/pmu.c
@@ -3,6 +3,7 @@
#include "evsel.h"
#include "parse-events.h"
#include "pmu.h"
+#include "pmus.h"
#include "tests.h"
#include "debug.h"
#include "fncache.h"
@@ -340,10 +341,108 @@ static int test__pmu_event_names(struct test_suite *test __maybe_unused,
return ret;
}
+static const char * const uncore_chas[] = {
+ "uncore_cha_0",
+ "uncore_cha_1",
+ "uncore_cha_2",
+ "uncore_cha_3",
+ "uncore_cha_4",
+ "uncore_cha_5",
+ "uncore_cha_6",
+ "uncore_cha_7",
+ "uncore_cha_8",
+ "uncore_cha_9",
+ "uncore_cha_10",
+ "uncore_cha_11",
+ "uncore_cha_12",
+ "uncore_cha_13",
+ "uncore_cha_14",
+ "uncore_cha_15",
+ "uncore_cha_16",
+ "uncore_cha_17",
+ "uncore_cha_18",
+ "uncore_cha_19",
+ "uncore_cha_20",
+ "uncore_cha_21",
+ "uncore_cha_22",
+ "uncore_cha_23",
+ "uncore_cha_24",
+ "uncore_cha_25",
+ "uncore_cha_26",
+ "uncore_cha_27",
+ "uncore_cha_28",
+ "uncore_cha_29",
+ "uncore_cha_30",
+ "uncore_cha_31",
+};
+
+static const char * const mrvl_ddrs[] = {
+ "mrvl_ddr_pmu_87e1b0000000",
+ "mrvl_ddr_pmu_87e1b1000000",
+ "mrvl_ddr_pmu_87e1b2000000",
+ "mrvl_ddr_pmu_87e1b3000000",
+ "mrvl_ddr_pmu_87e1b4000000",
+ "mrvl_ddr_pmu_87e1b5000000",
+ "mrvl_ddr_pmu_87e1b6000000",
+ "mrvl_ddr_pmu_87e1b7000000",
+ "mrvl_ddr_pmu_87e1b8000000",
+ "mrvl_ddr_pmu_87e1b9000000",
+ "mrvl_ddr_pmu_87e1ba000000",
+ "mrvl_ddr_pmu_87e1bb000000",
+ "mrvl_ddr_pmu_87e1bc000000",
+ "mrvl_ddr_pmu_87e1bd000000",
+ "mrvl_ddr_pmu_87e1be000000",
+ "mrvl_ddr_pmu_87e1bf000000",
+};
+
+static int test__name_len(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+ TEST_ASSERT_VAL("cpu", pmu_name_len_no_suffix("cpu") == strlen("cpu"));
+ TEST_ASSERT_VAL("i915", pmu_name_len_no_suffix("i915") == strlen("i915"));
+ TEST_ASSERT_VAL("cpum_cf", pmu_name_len_no_suffix("cpum_cf") == strlen("cpum_cf"));
+ for (size_t i = 0; i < ARRAY_SIZE(uncore_chas); i++) {
+ TEST_ASSERT_VAL("Strips uncore_cha suffix",
+ pmu_name_len_no_suffix(uncore_chas[i]) ==
+ strlen("uncore_cha"));
+ }
+ for (size_t i = 0; i < ARRAY_SIZE(mrvl_ddrs); i++) {
+ TEST_ASSERT_VAL("Strips mrvl_ddr_pmu suffix",
+ pmu_name_len_no_suffix(mrvl_ddrs[i]) ==
+ strlen("mrvl_ddr_pmu"));
+ }
+ return TEST_OK;
+}
+
+static int test__name_cmp(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
+{
+ TEST_ASSERT_EQUAL("cpu", pmu_name_cmp("cpu", "cpu"), 0);
+ TEST_ASSERT_EQUAL("i915", pmu_name_cmp("i915", "i915"), 0);
+ TEST_ASSERT_EQUAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_cf"), 0);
+ TEST_ASSERT_VAL("i915", pmu_name_cmp("cpu", "i915") < 0);
+ TEST_ASSERT_VAL("i915", pmu_name_cmp("i915", "cpu") > 0);
+ TEST_ASSERT_VAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_ce") > 0);
+ TEST_ASSERT_VAL("cpum_cf", pmu_name_cmp("cpum_cf", "cpum_d0") < 0);
+ for (size_t i = 1; i < ARRAY_SIZE(uncore_chas); i++) {
+ TEST_ASSERT_VAL("uncore_cha suffixes ordered lt",
+ pmu_name_cmp(uncore_chas[i-1], uncore_chas[i]) < 0);
+ TEST_ASSERT_VAL("uncore_cha suffixes ordered gt",
+ pmu_name_cmp(uncore_chas[i], uncore_chas[i-1]) > 0);
+ }
+ for (size_t i = 1; i < ARRAY_SIZE(mrvl_ddrs); i++) {
+ TEST_ASSERT_VAL("mrvl_ddr_pmu suffixes ordered lt",
+ pmu_name_cmp(mrvl_ddrs[i-1], mrvl_ddrs[i]) < 0);
+ TEST_ASSERT_VAL("mrvl_ddr_pmu suffixes ordered gt",
+ pmu_name_cmp(mrvl_ddrs[i], mrvl_ddrs[i-1]) > 0);
+ }
+ return TEST_OK;
+}
+
static struct test_case tests__pmu[] = {
TEST_CASE("Parsing with PMU format directory", pmu_format),
TEST_CASE("Parsing with PMU event", pmu_events),
TEST_CASE("PMU event names", pmu_event_names),
+ TEST_CASE("PMU name combining", name_len),
+ TEST_CASE("PMU name comparison", name_cmp),
{ .name = NULL, }
};
--
2.45.0.rc1.225.g2a3ae87e7f-goog
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