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perf tests: Set evlist of test__task_exit() to !overwrite 

Changing ringbuffer to !overwrite in this task is harmless because
this test uses a very low frequency (1) and using a very simple program
(true). There should have only 3 events in the whole test.  Overwriting
is impossible to happen.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20171113013809.212417-6-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
hifive-unleashed-5.1
Wang Nan 2017-11-13 01:38:07 +00:00 committed by Arnaldo Carvalho de Melo
parent 301d724aa1
commit a0e3dd79cd
1 changed files with 1 additions and 1 deletions
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2
tools/perf/tests/task-exit.c
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@ -97,7 +97,7 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused
goto out_delete_evlist;
}
if (perf_evlist__mmap(evlist, 128, true) < 0) {
if (perf_evlist__mmap(evlist, 128, false) < 0) {
pr_debug("failed to mmap events: %d (%s)\n", errno,
str_error_r(errno, sbuf, sizeof(sbuf)));
goto out_delete_evlist;