diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index a5acd2f..3b34a64 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -126,6 +126,7 @@
 	u64 timestamp;
 	u32 flags;
 	u16 insn_len;
+	u64 last_insn_cnt;
 };
 
 static void intel_pt_dump(struct intel_pt *pt __maybe_unused,
@@ -920,11 +921,13 @@
 	sample.addr = ptq->state->to_ip;
 	sample.id = ptq->pt->instructions_id;
 	sample.stream_id = ptq->pt->instructions_id;
-	sample.period = ptq->pt->instructions_sample_period;
+	sample.period = ptq->state->tot_insn_cnt - ptq->last_insn_cnt;
 	sample.cpu = ptq->cpu;
 	sample.flags = ptq->flags;
 	sample.insn_len = ptq->insn_len;
 
+	ptq->last_insn_cnt = ptq->state->tot_insn_cnt;
+
 	if (pt->synth_opts.callchain) {
 		thread_stack__sample(ptq->thread, ptq->chain,
 				     pt->synth_opts.callchain_sz, sample.ip);