Re: [PATCH 2/7] perf tests: Set evlist of test__backward_ring_buffer() to !overwrite
From: Arnaldo Carvalho de Melo
Date: Mon Nov 13 2017 - 13:31:08 EST
Em Mon, Nov 13, 2017 at 01:38:04AM +0000, Wang Nan escreveu:
> Setting overwrite in perf_evlist__mmap() is meaningless because the
> event in this evlist is already have 'overwrite' postfix and goes to
> backward ring buffer automatically. Pass 'false' to perf_evlist__mmap()
> to make it similar to others.
applied
> Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>
> ---
> tools/perf/tests/backward-ring-buffer.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c
> index d233ad3..992c917 100644
> --- a/tools/perf/tests/backward-ring-buffer.c
> +++ b/tools/perf/tests/backward-ring-buffer.c
> @@ -58,7 +58,7 @@ static int do_test(struct perf_evlist *evlist, int mmap_pages,
> int err;
> char sbuf[STRERR_BUFSIZE];
>
> - err = perf_evlist__mmap(evlist, mmap_pages, true);
> + err = perf_evlist__mmap(evlist, mmap_pages, false);
> if (err < 0) {
> pr_debug("perf_evlist__mmap: %s\n",
> str_error_r(errno, sbuf, sizeof(sbuf)));
> --
> 2.10.1