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 <namhy...@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 jirka -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/