test/submit-reuse: take a breather between fadvise calls
If we just keep hammering on it, we can make no progress from the
IO threads. Then the test can take minutes, and time out.
@@ -30,6 +30,7 @@ static void *flusher(void *__data)
while (!data->do_exit) {
posix_fadvise(data->fd1, 0, FILE_SIZE, POSIX_FADV_DONTNEED);
posix_fadvise(data->fd2, 0, FILE_SIZE, POSIX_FADV_DONTNEED);
+ usleep(10);
i++;
}
