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Date: Mon, 11 Jan 2016 13:48:28 +0000 From: Wang Nan <wangnan0@...wei.com> To: <acme@...nel.org> CC: <linux-kernel@...r.kernel.org>, <pi3orama@....com>, <lizefan@...wei.com>, <netdev@...r.kernel.org>, <davem@...emloft.net>, Wang Nan <wangnan0@...wei.com>, He Kuang <hekuang@...wei.com>, "Arnaldo Carvalho de Melo" <acme@...hat.com>, Jiri Olsa <jolsa@...nel.org>, Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>, Namhyung Kim <namhyung@...nel.org> Subject: [PATCH 37/53] perf record: Force enable --timestamp-filename when --switch-output is provided Without this patch, the last output doesn't have timestamp appended if --timestamp-filename is not explicitly provided. For example: # perf record -a --switch-output & [1] 11224 # kill -s SIGUSR2 11224 [ perf record: dump data: Woken up 1 times ] # [ perf record: Dump perf.data.2015122622372823 ] # fg perf record -a --switch-output ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.027 MB perf.data (540 samples) ] # ls -l total 836 -rw------- 1 root root 33256 Dec 26 22:37 perf.data <---- *Odd* -rw------- 1 root root 817156 Dec 26 22:37 perf.data.2015122622372823 Signed-off-by: Wang Nan <wangnan0@...wei.com> Signed-off-by: He Kuang <hekuang@...wei.com> Cc: Arnaldo Carvalho de Melo <acme@...hat.com> Cc: Jiri Olsa <jolsa@...nel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> Cc: Namhyung Kim <namhyung@...nel.org> Cc: Zefan Li <lizefan@...wei.com> Cc: pi3orama@....com --- tools/perf/builtin-record.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index e8f930c..d32facd 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1343,6 +1343,9 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) return -EINVAL; } + if (rec->switch_output) + rec->timestamp_filename = true; + if (!rec->itr) { rec->itr = auxtrace_record__init(rec->evlist, &err); if (err) -- 1.8.3.4
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