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Since for one hw event, two hybrid events are created. For example, evsel->idx evsel__name(evsel) 0 cycles 1 cycles 2 instructions 3 instructions ... So for comparing the evsel name on hybrid, the evsel->idx needs to be divided by 2. # ./perf test 14 14: Roundtrip evsel->name : Ok Signed-off-by: Jin Yao <yao.jin@linux.intel.com> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20210427070139.25256-20-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "evlist.h"
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#include "evsel.h"
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#include "parse-events.h"
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#include "tests.h"
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#include "debug.h"
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#include "pmu.h"
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#include <errno.h>
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#include <linux/kernel.h>
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static int perf_evsel__roundtrip_cache_name_test(void)
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{
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char name[128];
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int type, op, err = 0, ret = 0, i, idx;
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struct evsel *evsel;
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struct evlist *evlist = evlist__new();
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if (evlist == NULL)
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return -ENOMEM;
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for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
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for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
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/* skip invalid cache type */
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if (!evsel__is_cache_op_valid(type, op))
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continue;
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for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
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__evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
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err = parse_events(evlist, name, NULL);
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if (err)
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ret = err;
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}
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}
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}
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idx = 0;
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evsel = evlist__first(evlist);
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for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
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for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
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/* skip invalid cache type */
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if (!evsel__is_cache_op_valid(type, op))
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continue;
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for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
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__evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
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if (evsel->idx != idx)
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continue;
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++idx;
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if (strcmp(evsel__name(evsel), name)) {
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pr_debug("%s != %s\n", evsel__name(evsel), name);
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ret = -1;
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}
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evsel = evsel__next(evsel);
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}
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}
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}
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evlist__delete(evlist);
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return ret;
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}
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static int __perf_evsel__name_array_test(const char *names[], int nr_names,
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int distance)
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{
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int i, err;
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struct evsel *evsel;
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struct evlist *evlist = evlist__new();
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if (evlist == NULL)
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return -ENOMEM;
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for (i = 0; i < nr_names; ++i) {
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err = parse_events(evlist, names[i], NULL);
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if (err) {
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pr_debug("failed to parse event '%s', err %d\n",
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names[i], err);
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goto out_delete_evlist;
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}
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}
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err = 0;
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evlist__for_each_entry(evlist, evsel) {
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if (strcmp(evsel__name(evsel), names[evsel->idx / distance])) {
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--err;
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pr_debug("%s != %s\n", evsel__name(evsel), names[evsel->idx / distance]);
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}
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}
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out_delete_evlist:
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evlist__delete(evlist);
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return err;
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}
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#define perf_evsel__name_array_test(names, distance) \
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__perf_evsel__name_array_test(names, ARRAY_SIZE(names), distance)
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int test__perf_evsel__roundtrip_name_test(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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int err = 0, ret = 0;
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if (perf_pmu__has_hybrid())
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return perf_evsel__name_array_test(evsel__hw_names, 2);
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err = perf_evsel__name_array_test(evsel__hw_names, 1);
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if (err)
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ret = err;
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err = __perf_evsel__name_array_test(evsel__sw_names, PERF_COUNT_SW_DUMMY + 1, 1);
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if (err)
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ret = err;
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err = perf_evsel__roundtrip_cache_name_test();
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if (err)
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ret = err;
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return ret;
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}
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