diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-03-31 08:33:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-03-31 08:33:43 +0200 |
| commit | 643cb15ba07260faadd9fcfabac4f5d9d0ddc053 (patch) | |
| tree | e57bb3a38ed43eb91daac81c0818ba614e6d6bac /tools/perf/util/intel-bts.c | |
| parent | c932cf07ddc02f79e093596924e41cf6d7fda509 (diff) | |
| parent | d1706b39f0af6901ab2a5e2ebb210b53c1a5bdc7 (diff) | |
Merge tag 'perf-core-for-mingo-20160330' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes:
User visible changes:
- Add support for skipping itrace instructions, useful to fast forward
processor trace (Intel PT, BTS) to right after initialization code at the start
of a workload (Andi Kleen)
- Add support for backtraces in perl 'perf script's (Dima Kogan)
- Add -U/-K (--all-user/--all-kernel) options to 'perf mem' (Jiri Olsa)
- Make -f/--force option documentation consistent across tools (Jiri Olsa)
Infrastructure changes:
- Add 'perf test' to check for event times (Jiri Olsa)
- 'perf config' cleanups (Taeung Song)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/intel-bts.c')
| -rw-r--r-- | tools/perf/util/intel-bts.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c index abf1366e2a24..9df996085563 100644 --- a/tools/perf/util/intel-bts.c +++ b/tools/perf/util/intel-bts.c @@ -66,6 +66,7 @@ struct intel_bts { u64 branches_id; size_t branches_event_size; bool synth_needs_swap; + unsigned long num_events; }; struct intel_bts_queue { @@ -275,6 +276,10 @@ static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq, union perf_event event; struct perf_sample sample = { .ip = 0, }; + if (bts->synth_opts.initial_skip && + bts->num_events++ <= bts->synth_opts.initial_skip) + return 0; + event.sample.header.type = PERF_RECORD_SAMPLE; event.sample.header.misc = PERF_RECORD_MISC_USER; event.sample.header.size = sizeof(struct perf_event_header); |