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-rw-r--r--tools/perf/util/stat-shadow.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index ac10cc675d39..719d6cb86952 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -44,6 +44,8 @@ static struct stats runtime_topdown_slots_issued[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_slots_retired[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_fetch_bubbles[NUM_CTX][MAX_NR_CPUS];
static struct stats runtime_topdown_recovery_bubbles[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_smi_num_stats[NUM_CTX][MAX_NR_CPUS];
+static struct stats runtime_aperf_stats[NUM_CTX][MAX_NR_CPUS];
static struct rblist runtime_saved_values;
static bool have_frontend_stalled;
@@ -157,6 +159,8 @@ void perf_stat__reset_shadow_stats(void)
memset(runtime_topdown_slots_issued, 0, sizeof(runtime_topdown_slots_issued));
memset(runtime_topdown_fetch_bubbles, 0, sizeof(runtime_topdown_fetch_bubbles));
memset(runtime_topdown_recovery_bubbles, 0, sizeof(runtime_topdown_recovery_bubbles));
+ memset(runtime_smi_num_stats, 0, sizeof(runtime_smi_num_stats));
+ memset(runtime_aperf_stats, 0, sizeof(runtime_aperf_stats));
next = rb_first(&runtime_saved_values.entries);
while (next) {
@@ -217,6 +221,10 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);
else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);
+ else if (perf_stat_evsel__is(counter, SMI_NUM))
+ update_stats(&runtime_smi_num_stats[ctx][cpu], count[0]);
+ else if (perf_stat_evsel__is(counter, APERF))
+ update_stats(&runtime_aperf_stats[ctx][cpu], count[0]);
if (counter->collect_stat) {
struct saved_value *v = saved_value_lookup(counter, cpu, ctx,
@@ -592,6 +600,29 @@ static double td_be_bound(int ctx, int cpu)
return sanitize_val(1.0 - sum);
}
+static void print_smi_cost(int cpu, struct perf_evsel *evsel,
+ struct perf_stat_output_ctx *out)
+{
+ double smi_num, aperf, cycles, cost = 0.0;
+ int ctx = evsel_context(evsel);
+ const char *color = NULL;
+
+ smi_num = avg_stats(&runtime_smi_num_stats[ctx][cpu]);
+ aperf = avg_stats(&runtime_aperf_stats[ctx][cpu]);
+ cycles = avg_stats(&runtime_cycles_stats[ctx][cpu]);
+
+ if ((cycles == 0) || (aperf == 0))
+ return;
+
+ if (smi_num)
+ cost = (aperf - cycles) / aperf * 100.00;
+
+ if (cost > 10)
+ color = PERF_COLOR_RED;
+ out->print_metric(out->ctx, color, "%8.1f%%", "SMI cycles%", cost);
+ out->print_metric(out->ctx, NULL, "%4.0f", "SMI#", smi_num);
+}
+
void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
double avg, int cpu,
struct perf_stat_output_ctx *out)
@@ -825,6 +856,8 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
}
snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
print_metric(ctxp, NULL, "%8.3f", unit_buf, ratio);
+ } else if (perf_stat_evsel__is(evsel, SMI_NUM)) {
+ print_smi_cost(cpu, evsel, out);
} else {
print_metric(ctxp, NULL, NULL, NULL, 0);
}