From: Ian Rogers Date: Tue, 2 May 2023 22:38:21 +0000 (-0700) Subject: perf test: Roundtrip name, don't assume 1 event per name X-Git-Tag: microblaze-v6.6~21^2~294 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=a8af6e48c6220992430cd55713679f49c23ac6d2;p=linux-2.6-microblaze.git perf test: Roundtrip name, don't assume 1 event per name Opening hardware names and a legacy cache event on a hybrid PMU opens it on each PMU. Parsing and checking indexes fails, as the parsed index is double the expected. Avoid checking the index by just comparing the names immediately after the parse. This change removes hard coded hybrid logic and removes assumptions about the expansion of an event. On hybrid the PMUs may or may not support an event and so using a distance isn't a consistent solution. Reviewed-by: Kan Liang Signed-off-by: Ian Rogers Tested-by: Kan Liang Cc: Adrian Hunter Cc: Ahmad Yasin Cc: Alexander Shishkin Cc: Andi Kleen Cc: Athira Rajeev Cc: Caleb Biggers Cc: Edward Baker Cc: Florian Fischer Cc: Ingo Molnar Cc: James Clark Cc: Jiri Olsa Cc: John Garry Cc: Kajol Jain Cc: Kang Minchul Cc: Leo Yan Cc: Mark Rutland Cc: Namhyung Kim Cc: Perry Taylor Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: Rob Herring Cc: Samantha Alt Cc: Stephane Eranian Cc: Sumanth Korikkar Cc: Suzuki Poulouse Cc: Thomas Richter Cc: Tiezhu Yang Cc: Weilin Wang Cc: Xing Zhengjun Cc: Yang Jihong Link: https://lore.kernel.org/r/20230502223851.2234828-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c index e94fed901992..15ff86f9da0b 100644 --- a/tools/perf/tests/evsel-roundtrip-name.c +++ b/tools/perf/tests/evsel-roundtrip-name.c @@ -4,114 +4,93 @@ #include "parse-events.h" #include "tests.h" #include "debug.h" -#include "pmu.h" -#include "pmu-hybrid.h" -#include #include static int perf_evsel__roundtrip_cache_name_test(void) { - char name[128]; - int type, op, err = 0, ret = 0, i, idx; - struct evsel *evsel; - struct evlist *evlist = evlist__new(); + int ret = TEST_OK; - if (evlist == NULL) - return -ENOMEM; - - for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { - for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { + for (int type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { + for (int op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { /* skip invalid cache type */ if (!evsel__is_cache_op_valid(type, op)) continue; - for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { - __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name)); - err = parse_event(evlist, name); - if (err) - ret = err; - } - } - } - - idx = 0; - evsel = evlist__first(evlist); + for (int res = 0; res < PERF_COUNT_HW_CACHE_RESULT_MAX; res++) { + char name[128]; + struct evlist *evlist = evlist__new(); + struct evsel *evsel; + int err; - for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { - for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { - /* skip invalid cache type */ - if (!evsel__is_cache_op_valid(type, op)) - continue; + if (evlist == NULL) { + pr_debug("Failed to alloc evlist"); + return TEST_FAIL; + } + __evsel__hw_cache_type_op_res_name(type, op, res, + name, sizeof(name)); - for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { - __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name)); - if (evsel->core.idx != idx) + err = parse_event(evlist, name); + if (err) { + pr_debug("Failure to parse cache event '%s' possibly as PMUs don't support it", + name); + evlist__delete(evlist); continue; - - ++idx; - - if (strcmp(evsel__name(evsel), name)) { - pr_debug("%s != %s\n", evsel__name(evsel), name); - ret = -1; } - - evsel = evsel__next(evsel); + evlist__for_each_entry(evlist, evsel) { + if (strcmp(evsel__name(evsel), name)) { + pr_debug("%s != %s\n", evsel__name(evsel), name); + ret = TEST_FAIL; + } + } + evlist__delete(evlist); } } } - - evlist__delete(evlist); return ret; } -static int __perf_evsel__name_array_test(const char *const names[], int nr_names, - int distance) +static int perf_evsel__name_array_test(const char *const names[], int nr_names) { - int i, err; - struct evsel *evsel; - struct evlist *evlist = evlist__new(); + int ret = TEST_OK; - if (evlist == NULL) - return -ENOMEM; + for (int i = 0; i < nr_names; ++i) { + struct evlist *evlist = evlist__new(); + struct evsel *evsel; + int err; - for (i = 0; i < nr_names; ++i) { + if (evlist == NULL) { + pr_debug("Failed to alloc evlist"); + return TEST_FAIL; + } err = parse_event(evlist, names[i]); if (err) { pr_debug("failed to parse event '%s', err %d\n", names[i], err); - goto out_delete_evlist; + evlist__delete(evlist); + ret = TEST_FAIL; + continue; } - } - - err = 0; - evlist__for_each_entry(evlist, evsel) { - if (strcmp(evsel__name(evsel), names[evsel->core.idx / distance])) { - --err; - pr_debug("%s != %s\n", evsel__name(evsel), names[evsel->core.idx / distance]); + evlist__for_each_entry(evlist, evsel) { + if (strcmp(evsel__name(evsel), names[i])) { + pr_debug("%s != %s\n", evsel__name(evsel), names[i]); + ret = TEST_FAIL; + } } + evlist__delete(evlist); } - -out_delete_evlist: - evlist__delete(evlist); - return err; + return ret; } -#define perf_evsel__name_array_test(names, distance) \ - __perf_evsel__name_array_test(names, ARRAY_SIZE(names), distance) - static int test__perf_evsel__roundtrip_name_test(struct test_suite *test __maybe_unused, int subtest __maybe_unused) { - int err = 0, ret = 0; - - if (perf_pmu__has_hybrid() && perf_pmu__hybrid_mounted("cpu_atom")) - return perf_evsel__name_array_test(evsel__hw_names, 2); + int err = 0, ret = TEST_OK; - err = perf_evsel__name_array_test(evsel__hw_names, 1); + err = perf_evsel__name_array_test(evsel__hw_names, PERF_COUNT_HW_MAX); if (err) ret = err; - err = __perf_evsel__name_array_test(evsel__sw_names, PERF_COUNT_SW_DUMMY + 1, 1); + err = perf_evsel__name_array_test(evsel__sw_names, PERF_COUNT_SW_DUMMY + 1); if (err) ret = err;