| From | Namhyung Kim <> | Date | Sat, 27 Dec 2014 14:21:12 +0900 | Subject | Re: [PATCH 37/37] perf data: Implement 'split' subcommand |
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Hi Jiri,
On Fri, Dec 26, 2014 at 10:59 PM, Jiri Olsa <jolsa@redhat.com> wrote: > On Wed, Dec 24, 2014 at 04:15:33PM +0900, Namhyung Kim wrote: >> The perf data split command is for splitting a (large) single data >> file into multiple files under a directory (perf.data.dir by default) >> so that it can be processed and reported using multiple threads. >> >> Signed-off-by: Namhyung Kim <namhyung@kernel.org> >> --- >> tools/perf/Documentation/perf-data.txt | 28 +++++ >> tools/perf/builtin-data.c | 223 +++++++++++++++++++++++++++++++++ >> 2 files changed, 251 insertions(+) >> >> diff --git a/tools/perf/Documentation/perf-data.txt b/tools/perf/Documentation/perf-data.txt >> index b8c83947715c..42708702f10c 100644 >> --- a/tools/perf/Documentation/perf-data.txt >> +++ b/tools/perf/Documentation/perf-data.txt >> @@ -13,3 +13,31 @@ SYNOPSIS >> DESCRIPTION >> ----------- >> Data file related processing. >> + >> +COMMANDS >> +-------- >> +split:: >> + Split single data file (perf.data) into multiple files under a directory >> + in order to be reported by multiple threads. >> + >> +OPTIONS for 'split' >> +--------------------- >> +-i:: >> +--input:: >> + Specify input perf data file path. >> + >> +-o:: >> +--output:: >> + Specify output perf data directory path. > > should the -o have 'perf.data.dir' as default? > > [jolsa@krava perf]$ ./perf record ls > /dev/null > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.000 MB perf.data (~0 samples) ] > [jolsa@krava perf]$ ./perf data split > [jolsa@krava perf]$ ll perf.data* > -rw------- 1 jolsa jolsa 16172 Dec 26 14:58 perf.data
You're right! :)
Thanks, Namhyung
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