diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 7a70693c1b91..3cff8fe2eaa0 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -157,6 +157,12 @@ struct intel_pt_queue { u32 flags; u16 insn_len; u64 last_insn_cnt; + u64 ipc_insn_cnt; + u64 ipc_cyc_cnt; + u64 last_in_insn_cnt; + u64 last_in_cyc_cnt; + u64 last_br_insn_cnt; + u64 last_br_cyc_cnt; char insn[INTEL_PT_INSN_BUF_SZ]; }; @@ -1162,6 +1168,13 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) sample.branch_stack = (struct branch_stack *)&dummy_bs; } + sample.cyc_cnt = ptq->ipc_cyc_cnt - ptq->last_br_cyc_cnt; + if (sample.cyc_cnt) { + sample.insn_cnt = ptq->ipc_insn_cnt - ptq->last_br_insn_cnt; + ptq->last_br_insn_cnt = ptq->ipc_insn_cnt; + ptq->last_br_cyc_cnt = ptq->ipc_cyc_cnt; + } + return intel_pt_deliver_synth_b_event(pt, event, &sample, pt->branches_sample_type); } @@ -1217,6 +1230,13 @@ static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq) sample.stream_id = ptq->pt->instructions_id; sample.period = ptq->state->tot_insn_cnt - ptq->last_insn_cnt; + sample.cyc_cnt = ptq->ipc_cyc_cnt - ptq->last_in_cyc_cnt; + if (sample.cyc_cnt) { + sample.insn_cnt = ptq->ipc_insn_cnt - ptq->last_in_insn_cnt; + ptq->last_in_insn_cnt = ptq->ipc_insn_cnt; + ptq->last_in_cyc_cnt = ptq->ipc_cyc_cnt; + } + ptq->last_insn_cnt = ptq->state->tot_insn_cnt; return intel_pt_deliver_synth_event(pt, ptq, event, &sample, @@ -1488,6 +1508,15 @@ static int intel_pt_sample(struct intel_pt_queue *ptq) ptq->have_sample = false; + if (ptq->state->tot_cyc_cnt > ptq->ipc_cyc_cnt) { + /* + * Cycle count and instruction count only go together to create + * a valid IPC ratio when the cycle count changes. + */ + ptq->ipc_insn_cnt = ptq->state->tot_insn_cnt; + ptq->ipc_cyc_cnt = ptq->state->tot_cyc_cnt; + } + if (pt->sample_pwr_events && (state->type & INTEL_PT_PWR_EVT)) { if (state->type & INTEL_PT_CBR_CHG) { err = intel_pt_synth_cbr_sample(ptq);