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Diffstat (limited to 'tools/perf/util/intel-pt.c')
-rw-r--r--tools/perf/util/intel-pt.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 617578440989..137196990012 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -100,6 +100,8 @@ struct intel_pt {
u64 cyc_bit;
u64 noretcomp_bit;
unsigned max_non_turbo_ratio;
+
+ unsigned long num_events;
};
enum switch_state {
@@ -972,6 +974,10 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
if (pt->branches_filter && !(pt->branches_filter & ptq->flags))
return 0;
+ if (pt->synth_opts.initial_skip &&
+ pt->num_events++ < pt->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);
@@ -1029,6 +1035,10 @@ static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
union perf_event *event = ptq->event_buf;
struct perf_sample sample = { .ip = 0, };
+ if (pt->synth_opts.initial_skip &&
+ pt->num_events++ < pt->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);
@@ -1087,6 +1097,10 @@ static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq)
union perf_event *event = ptq->event_buf;
struct perf_sample sample = { .ip = 0, };
+ if (pt->synth_opts.initial_skip &&
+ pt->num_events++ < pt->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);
@@ -1199,14 +1213,18 @@ static int intel_pt_sample(struct intel_pt_queue *ptq)
ptq->have_sample = false;
if (pt->sample_instructions &&
- (state->type & INTEL_PT_INSTRUCTION)) {
+ (state->type & INTEL_PT_INSTRUCTION) &&
+ (!pt->synth_opts.initial_skip ||
+ pt->num_events++ >= pt->synth_opts.initial_skip)) {
err = intel_pt_synth_instruction_sample(ptq);
if (err)
return err;
}
if (pt->sample_transactions &&
- (state->type & INTEL_PT_TRANSACTION)) {
+ (state->type & INTEL_PT_TRANSACTION) &&
+ (!pt->synth_opts.initial_skip ||
+ pt->num_events++ >= pt->synth_opts.initial_skip)) {
err = intel_pt_synth_transaction_sample(ptq);
if (err)
return err;