Em Mon, Jul 18, 2016 at 04:32:59PM +0200, Jiri Olsa escreveu: > On Fri, Jul 15, 2016 at 11:08:12AM +0100, Mark Rutland wrote: > > In systems with heterogeneous CPU PMUs, it's possible for each evsel to > > cover a distinct set of CPUs, and hence the cpu_map associated with each > > evsel may have a distinct idx<->id mapping. Any of these may be distinct > > from > > the evlist's cpu map. > > > > Events can be tied to the same fd so long as they use the same per-cpu > > ringbuffer (i.e. so long as they are on the same CPU). To acquire the > > correct FDs, we must compare the Linux logical IDs rather than the evsel > > or evlist indices. > > > > This path adds logic to perf_evlist__mmap_per_evsel to handle this, > > translating IDs as required. As PMUs may cover a subset of CPUs from the > > evlist, we skip the CPUs a PMU cannot handle. > > > > Signed-off-by: Mark Rutland <[email protected]> > > Cc: Adrian Hunter <[email protected]> > > Cc: Alexander Shishkin <[email protected]> > > Cc: Arnaldo Carvalho de Melo <[email protected]> > > Cc: He Kuang <[email protected]> > > Cc: Ingo Molnar <[email protected]> > > Cc: Jiri Olsa <[email protected]> > > Cc: Peter Zijlstra <[email protected]> > > Cc: Wang Nan <[email protected]> > > Cc: [email protected] > > Acked-by: Jiri Olsa <[email protected]>
Applied the first two, this one is not applying, please check my perf/core branch, what is there should soon be pushed to Ingo, so tip/perf/core may be ok too. - Arnaldo
