Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-07 21:53:44 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

perf tests: Add some pmu core functionality tests

Browse Source 
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@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: James Clark <james.clark@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Bharat Bhushan <bbhushan2@marvell.com>
Cc: Bhaskara Budiredla <bbudiredla@marvell.com>
Cc: Tuan Phan <tuanphan@os.amperecomputing.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240515060114.3268149-3-irogers@google.com
This commit is contained in:
Ian Rogers 2024-05-14 23:01:14 -07:00 committed by Namhyung Kim
parent 3241d46f5f
commit 678be1ca30
1 changed files with 99 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

99
tools/perf/tests/pmu.c
View File

@ -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, }
};