On Wed, Apr 29, 2015 at 04:27:45PM +0900, Namhyung Kim wrote: > Add --input option to 'perf stat' so that it can show event stats of the > file. I would like to use a short '-i' option to be compatible with > other commands but it was already taken by '--no-inherit' option, so it > only supports the long option. > > The example output looks like below: > > $ perf record -a sleep 1 > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.635 MB perf.data (1946 samples) ] > > $ perf stat --input perf.data > > Total event stats for 'perf.data' file: > > TOTAL events: 6837 > MMAP events: 116 > COMM events: 375 > EXIT events: 2 > THROTTLE events: 12 > UNTHROTTLE events: 11 > FORK events: 374 > SAMPLE events: 1946 > MMAP2 events: 3999 > FINISHED_ROUND events: 2 > > Sample event stats: > > 361,255,234 cycles > 1,946 samples # sampling ratio > 12.162% (486/4000) > > 0.998581085 second time sampled
It would be nice if this thing could support 'perf record -s' which enables perf_event_attr::inherit_stat, which in turn results in PERF_RECORD_READ entries after every PERF_RECORD_EXIT which give the total number of events for each recorded task. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
