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Commit 75948730 authored by Kan Liang's avatar Kan Liang Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarKan Liang <kan.liang@linux.intel.com>
Tested-by: default avatarArnaldo 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ee4024ff

tools/perf/tests/task-exit.c

+10 −2
Original line number Diff line number Diff line
@@ -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;