| commit | 699c12a7cca376d16f75672f9047faa37b184eda | [log] [tgz] |
|---|---|---|
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | Wed Nov 09 11:04:05 2016 -0300 |
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | Fri Nov 11 13:18:52 2016 -0300 |
| tree | 6a68d876b73f4b981003c0264c96eb0f51862117 | |
| parent | c56cb33b56c13493eeb95612f80e4dd6e35cd109 [diff] |
perf intel-pt: Update documentation about context switch events Since the unprivileged sched switch event was added in perf, PT doesn't need need perf_event_paranoid=-1 anymore for per cpu decoding. Add a note stating that that is only needed for kernels < 4.2. Reported-by: Andi Kleen <ak@linux.intel.com> Report-Link: http://lkml.kernel.org/r/http://lkml.kernel.org/n/tip-x2ybghpqxxn3zu0m8o7qi42r@git.kernel.org Acked-by: Adrian Hunter <adrian.hunter@intel.com> Fixes: 45ac1403f564 ("perf: Add PERF_RECORD_SWITCH to indicate context switches") Link: http://lkml.kernel.org/n/tip-x2ybghpqxxn3zu0m8o7qi42r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>