mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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02266a2d9c
Add simple perf_evsel enable/disable test together with evsel counter
reading interface.
Committer testing:
# make -C tools/perf/lib tests
make: Entering directory '/home/acme/git/perf/tools/perf/lib'
LINK test-cpumap-a
LINK test-threadmap-a
LINK test-evlist-a
LINK test-evsel-a
LINK test-cpumap-so
LINK test-threadmap-so
LINK test-evlist-so
LINK test-evsel-so
running static:
- running test-cpumap.c...OK
- running test-threadmap.c...OK
- running test-evlist.c...OK
- running test-evsel.c...OK
running dynamic:
- running test-cpumap.c...OK
- running test-threadmap.c...OK
- running test-evlist.c...OK
- running test-evsel.c...OK
make: Leaving directory '/home/acme/git/perf/tools/perf/lib'
#
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-79-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
126 lines
2.8 KiB
C
126 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/perf_event.h>
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#include <perf/cpumap.h>
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#include <perf/threadmap.h>
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#include <perf/evsel.h>
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#include <internal/tests.h>
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static int test_stat_cpu(void)
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{
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struct perf_cpu_map *cpus;
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struct perf_evsel *evsel;
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struct perf_event_attr attr = {
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.type = PERF_TYPE_SOFTWARE,
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.config = PERF_COUNT_SW_CPU_CLOCK,
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};
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int err, cpu, tmp;
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cpus = perf_cpu_map__new(NULL);
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__T("failed to create cpus", cpus);
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evsel = perf_evsel__new(&attr);
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__T("failed to create evsel", evsel);
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err = perf_evsel__open(evsel, cpus, NULL);
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__T("failed to open evsel", err == 0);
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perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
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struct perf_counts_values counts = { .val = 0 };
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perf_evsel__read(evsel, cpu, 0, &counts);
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__T("failed to read value for evsel", counts.val != 0);
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}
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perf_evsel__close(evsel);
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perf_evsel__delete(evsel);
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perf_cpu_map__put(cpus);
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return 0;
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}
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static int test_stat_thread(void)
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{
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struct perf_counts_values counts = { .val = 0 };
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struct perf_thread_map *threads;
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struct perf_evsel *evsel;
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struct perf_event_attr attr = {
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.type = PERF_TYPE_SOFTWARE,
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.config = PERF_COUNT_SW_TASK_CLOCK,
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};
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int err;
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threads = perf_thread_map__new_dummy();
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__T("failed to create threads", threads);
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perf_thread_map__set_pid(threads, 0, 0);
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evsel = perf_evsel__new(&attr);
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__T("failed to create evsel", evsel);
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err = perf_evsel__open(evsel, NULL, threads);
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__T("failed to open evsel", err == 0);
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perf_evsel__read(evsel, 0, 0, &counts);
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__T("failed to read value for evsel", counts.val != 0);
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perf_evsel__close(evsel);
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perf_evsel__delete(evsel);
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perf_thread_map__put(threads);
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return 0;
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}
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static int test_stat_thread_enable(void)
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{
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struct perf_counts_values counts = { .val = 0 };
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struct perf_thread_map *threads;
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struct perf_evsel *evsel;
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struct perf_event_attr attr = {
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.type = PERF_TYPE_SOFTWARE,
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.config = PERF_COUNT_SW_TASK_CLOCK,
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.disabled = 1,
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};
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int err;
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threads = perf_thread_map__new_dummy();
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__T("failed to create threads", threads);
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perf_thread_map__set_pid(threads, 0, 0);
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evsel = perf_evsel__new(&attr);
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__T("failed to create evsel", evsel);
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err = perf_evsel__open(evsel, NULL, threads);
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__T("failed to open evsel", err == 0);
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perf_evsel__read(evsel, 0, 0, &counts);
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__T("failed to read value for evsel", counts.val == 0);
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err = perf_evsel__enable(evsel);
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__T("failed to enable evsel", err == 0);
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perf_evsel__read(evsel, 0, 0, &counts);
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__T("failed to read value for evsel", counts.val != 0);
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err = perf_evsel__disable(evsel);
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__T("failed to enable evsel", err == 0);
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perf_evsel__close(evsel);
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perf_evsel__delete(evsel);
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perf_thread_map__put(threads);
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return 0;
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}
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int main(int argc, char **argv)
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{
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__T_START;
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test_stat_cpu();
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test_stat_thread();
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test_stat_thread_enable();
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__T_OK;
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return 0;
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}
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