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perf test: Switch to new perf_mmap__read_event() interface for task-exit 

The perf test 'task-exit' still use the legacy interface.

No functional change.

Committer notes:

Testing it:

  # perf test exit
  21: Number of exit events of a simple workload            : Ok
  #

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1519945751-37786-13-git-send-email-kan.liang@linux.intel.com
[ Changed bool parameters from 0 to 'false', as per Jiri comment ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Kan Liang 2018-03-01 18:09:10 -05:00 committed by Arnaldo Carvalho de Melo
parent ee4024ff85
commit 7594873076
1 changed files with 10 additions and 2 deletions
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12
tools/perf/tests/task-exit.c
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@ -47,6 +47,8 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused
char sbuf[STRERR_BUFSIZE];
struct cpu_map *cpus;
struct thread_map *threads;
struct perf_mmap *md;
u64 end, start;
signal(SIGCHLD, sig_handler);
@ -110,13 +112,19 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused
perf_evlist__start_workload(evlist);
retry:
while ((event = perf_evlist__mmap_read(evlist, 0)) != NULL) {
md = &evlist->mmap[0];
if (perf_mmap__read_init(md, false, &start, &end) < 0)
goto out_init;
while ((event = perf_mmap__read_event(md, false, &start, end)) != NULL) {
if (event->header.type == PERF_RECORD_EXIT)
nr_exit++;
perf_evlist__mmap_consume(evlist, 0);
perf_mmap__consume(md, false);
}
perf_mmap__read_done(md);
out_init:
if (!exited || !nr_exit) {
perf_evlist__poll(evlist, -1);
goto retry;