On Thu, Jul 07, 2016 at 05:34:44AM +0000, Wang Nan wrote: SNIP
> + > perf_evlist__enable(evlist); > testcase(); > perf_evlist__disable(evlist); > > - err = count_samples(evlist, sample_count, comm_count); > + perf_evlist__mmap_read_catchup_all(aux_evlist); > + err = count_samples(aux_evlist, exit_sample_count, comm_count); > + if (err) > + goto errout; > + err = count_samples(evlist, enter_sample_count, &dummy); should this one use perf_evlist__mmap_read_forward to count samples? jirka