Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 716 insertions, 0 deletions

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
new file mode 100644
index 0000000000..e314261678
--- /dev/null
+++ b/tools/perf/util/stat-shadow.c
@@ -0,0 +1,716 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <math.h>
+#include <stdio.h>
+#include "evsel.h"
+#include "stat.h"
+#include "color.h"
+#include "debug.h"
+#include "pmu.h"
+#include "rblist.h"
+#include "evlist.h"
+#include "expr.h"
+#include "metricgroup.h"
+#include "cgroup.h"
+#include "units.h"
+#include <linux/zalloc.h>
+#include "iostat.h"
+#include "util/hashmap.h"
+
+struct stats walltime_nsecs_stats;
+struct rusage_stats ru_stats;
+
+enum {
+	CTX_BIT_USER	= 1 << 0,
+	CTX_BIT_KERNEL	= 1 << 1,
+	CTX_BIT_HV	= 1 << 2,
+	CTX_BIT_HOST	= 1 << 3,
+	CTX_BIT_IDLE	= 1 << 4,
+	CTX_BIT_MAX	= 1 << 5,
+};
+
+enum stat_type {
+	STAT_NONE = 0,
+	STAT_NSECS,
+	STAT_CYCLES,
+	STAT_INSTRUCTIONS,
+	STAT_STALLED_CYCLES_FRONT,
+	STAT_STALLED_CYCLES_BACK,
+	STAT_BRANCHES,
+	STAT_BRANCH_MISS,
+	STAT_CACHE_REFS,
+	STAT_CACHE_MISSES,
+	STAT_L1_DCACHE,
+	STAT_L1_ICACHE,
+	STAT_LL_CACHE,
+	STAT_ITLB_CACHE,
+	STAT_DTLB_CACHE,
+	STAT_L1D_MISS,
+	STAT_L1I_MISS,
+	STAT_LL_MISS,
+	STAT_DTLB_MISS,
+	STAT_ITLB_MISS,
+	STAT_MAX
+};
+
+static int evsel_context(const struct evsel *evsel)
+{
+	int ctx = 0;
+
+	if (evsel->core.attr.exclude_kernel)
+		ctx |= CTX_BIT_KERNEL;
+	if (evsel->core.attr.exclude_user)
+		ctx |= CTX_BIT_USER;
+	if (evsel->core.attr.exclude_hv)
+		ctx |= CTX_BIT_HV;
+	if (evsel->core.attr.exclude_host)
+		ctx |= CTX_BIT_HOST;
+	if (evsel->core.attr.exclude_idle)
+		ctx |= CTX_BIT_IDLE;
+
+	return ctx;
+}
+
+void perf_stat__reset_shadow_stats(void)
+{
+	memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
+	memset(&ru_stats, 0, sizeof(ru_stats));
+}
+
+static enum stat_type evsel__stat_type(const struct evsel *evsel)
+{
+	/* Fake perf_hw_cache_op_id values for use with evsel__match. */
+	u64 PERF_COUNT_hw_cache_l1d_miss = PERF_COUNT_HW_CACHE_L1D |
+		((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+		((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
+	u64 PERF_COUNT_hw_cache_l1i_miss = PERF_COUNT_HW_CACHE_L1I |
+		((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+		((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
+	u64 PERF_COUNT_hw_cache_ll_miss = PERF_COUNT_HW_CACHE_LL |
+		((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+		((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
+	u64 PERF_COUNT_hw_cache_dtlb_miss = PERF_COUNT_HW_CACHE_DTLB |
+		((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+		((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
+	u64 PERF_COUNT_hw_cache_itlb_miss = PERF_COUNT_HW_CACHE_ITLB |
+		((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
+		((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
+
+	if (evsel__is_clock(evsel))
+		return STAT_NSECS;
+	else if (evsel__match(evsel, HARDWARE, HW_CPU_CYCLES))
+		return STAT_CYCLES;
+	else if (evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS))
+		return STAT_INSTRUCTIONS;
+	else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
+		return STAT_STALLED_CYCLES_FRONT;
+	else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND))
+		return STAT_STALLED_CYCLES_BACK;
+	else if (evsel__match(evsel, HARDWARE, HW_BRANCH_INSTRUCTIONS))
+		return STAT_BRANCHES;
+	else if (evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES))
+		return STAT_BRANCH_MISS;
+	else if (evsel__match(evsel, HARDWARE, HW_CACHE_REFERENCES))
+		return STAT_CACHE_REFS;
+	else if (evsel__match(evsel, HARDWARE, HW_CACHE_MISSES))
+		return STAT_CACHE_MISSES;
+	else if (evsel__match(evsel, HW_CACHE, HW_CACHE_L1D))
+		return STAT_L1_DCACHE;
+	else if (evsel__match(evsel, HW_CACHE, HW_CACHE_L1I))
+		return STAT_L1_ICACHE;
+	else if (evsel__match(evsel, HW_CACHE, HW_CACHE_LL))
+		return STAT_LL_CACHE;
+	else if (evsel__match(evsel, HW_CACHE, HW_CACHE_DTLB))
+		return STAT_DTLB_CACHE;
+	else if (evsel__match(evsel, HW_CACHE, HW_CACHE_ITLB))
+		return STAT_ITLB_CACHE;
+	else if (evsel__match(evsel, HW_CACHE, hw_cache_l1d_miss))
+		return STAT_L1D_MISS;
+	else if (evsel__match(evsel, HW_CACHE, hw_cache_l1i_miss))
+		return STAT_L1I_MISS;
+	else if (evsel__match(evsel, HW_CACHE, hw_cache_ll_miss))
+		return STAT_LL_MISS;
+	else if (evsel__match(evsel, HW_CACHE, hw_cache_dtlb_miss))
+		return STAT_DTLB_MISS;
+	else if (evsel__match(evsel, HW_CACHE, hw_cache_itlb_miss))
+		return STAT_ITLB_MISS;
+	return STAT_NONE;
+}
+
+static const char *get_ratio_color(const double ratios[3], double val)
+{
+	const char *color = PERF_COLOR_NORMAL;
+
+	if (val > ratios[0])
+		color = PERF_COLOR_RED;
+	else if (val > ratios[1])
+		color = PERF_COLOR_MAGENTA;
+	else if (val > ratios[2])
+		color = PERF_COLOR_YELLOW;
+
+	return color;
+}
+
+static double find_stat(const struct evsel *evsel, int aggr_idx, enum stat_type type)
+{
+	const struct evsel *cur;
+	int evsel_ctx = evsel_context(evsel);
+
+	evlist__for_each_entry(evsel->evlist, cur) {
+		struct perf_stat_aggr *aggr;
+
+		/* Ignore the evsel that is being searched from. */
+		if (evsel == cur)
+			continue;
+
+		/* Ignore evsels that are part of different groups. */
+		if (evsel->core.leader->nr_members > 1 &&
+		    evsel->core.leader != cur->core.leader)
+			continue;
+		/* Ignore evsels with mismatched modifiers. */
+		if (evsel_ctx != evsel_context(cur))
+			continue;
+		/* Ignore if not the cgroup we're looking for. */
+		if (evsel->cgrp != cur->cgrp)
+			continue;
+		/* Ignore if not the stat we're looking for. */
+		if (type != evsel__stat_type(cur))
+			continue;
+
+		aggr = &cur->stats->aggr[aggr_idx];
+		if (type == STAT_NSECS)
+			return aggr->counts.val;
+		return aggr->counts.val * cur->scale;
+	}
+	return 0.0;
+}
+
+static void print_ratio(struct perf_stat_config *config,
+			const struct evsel *evsel, int aggr_idx,
+			double numerator, struct perf_stat_output_ctx *out,
+			enum stat_type denominator_type,
+			const double color_ratios[3], const char *unit)
+{
+	double denominator = find_stat(evsel, aggr_idx, denominator_type);
+
+	if (numerator && denominator) {
+		double ratio = numerator / denominator * 100.0;
+		const char *color = get_ratio_color(color_ratios, ratio);
+
+		out->print_metric(config, out->ctx, color, "%7.2f%%", unit, ratio);
+	} else
+		out->print_metric(config, out->ctx, NULL, NULL, unit, 0);
+}
+
+static void print_stalled_cycles_front(struct perf_stat_config *config,
+				const struct evsel *evsel,
+				int aggr_idx, double stalled,
+				struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {50.0, 30.0, 10.0};
+
+	print_ratio(config, evsel, aggr_idx, stalled, out, STAT_CYCLES, color_ratios,
+		    "frontend cycles idle");
+}
+
+static void print_stalled_cycles_back(struct perf_stat_config *config,
+				const struct evsel *evsel,
+				int aggr_idx, double stalled,
+				struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {75.0, 50.0, 20.0};
+
+	print_ratio(config, evsel, aggr_idx, stalled, out, STAT_CYCLES, color_ratios,
+		    "backend cycles idle");
+}
+
+static void print_branch_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_BRANCHES, color_ratios,
+		    "of all branches");
+}
+
+static void print_l1d_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_L1_DCACHE, color_ratios,
+		    "of all L1-dcache accesses");
+}
+
+static void print_l1i_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_L1_ICACHE, color_ratios,
+		    "of all L1-icache accesses");
+}
+
+static void print_ll_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_LL_CACHE, color_ratios,
+		    "of all LL-cache accesses");
+}
+
+static void print_dtlb_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_DTLB_CACHE, color_ratios,
+		    "of all dTLB cache accesses");
+}
+
+static void print_itlb_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_ITLB_CACHE, color_ratios,
+		    "of all iTLB cache accesses");
+}
+
+static void print_cache_miss(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double misses,
+			struct perf_stat_output_ctx *out)
+{
+	static const double color_ratios[3] = {20.0, 10.0, 5.0};
+
+	print_ratio(config, evsel, aggr_idx, misses, out, STAT_CACHE_REFS, color_ratios,
+		    "of all cache refs");
+}
+
+static void print_instructions(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double instructions,
+			struct perf_stat_output_ctx *out)
+{
+	print_metric_t print_metric = out->print_metric;
+	void *ctxp = out->ctx;
+	double cycles = find_stat(evsel, aggr_idx, STAT_CYCLES);
+	double max_stalled = max(find_stat(evsel, aggr_idx, STAT_STALLED_CYCLES_FRONT),
+				find_stat(evsel, aggr_idx, STAT_STALLED_CYCLES_BACK));
+
+	if (cycles) {
+		print_metric(config, ctxp, NULL, "%7.2f ", "insn per cycle",
+			instructions / cycles);
+	} else
+		print_metric(config, ctxp, NULL, NULL, "insn per cycle", 0);
+
+	if (max_stalled && instructions) {
+		out->new_line(config, ctxp);
+		print_metric(config, ctxp, NULL, "%7.2f ", "stalled cycles per insn",
+			max_stalled / instructions);
+	}
+}
+
+static void print_cycles(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx, double cycles,
+			struct perf_stat_output_ctx *out)
+{
+	double nsecs = find_stat(evsel, aggr_idx, STAT_NSECS);
+
+	if (cycles && nsecs) {
+		double ratio = cycles / nsecs;
+
+		out->print_metric(config, out->ctx, NULL, "%8.3f", "GHz", ratio);
+	} else
+		out->print_metric(config, out->ctx, NULL, NULL, "GHz", 0);
+}
+
+static void print_nsecs(struct perf_stat_config *config,
+			const struct evsel *evsel,
+			int aggr_idx __maybe_unused, double nsecs,
+			struct perf_stat_output_ctx *out)
+{
+	print_metric_t print_metric = out->print_metric;
+	void *ctxp = out->ctx;
+	double wall_time = avg_stats(&walltime_nsecs_stats);
+
+	if (wall_time) {
+		print_metric(config, ctxp, NULL, "%8.3f", "CPUs utilized",
+			nsecs / (wall_time * evsel->scale));
+	} else
+		print_metric(config, ctxp, NULL, NULL, "CPUs utilized", 0);
+}
+
+static int prepare_metric(struct evsel **metric_events,
+			  struct metric_ref *metric_refs,
+			  struct expr_parse_ctx *pctx,
+			  int aggr_idx)
+{
+	int i;
+
+	for (i = 0; metric_events[i]; i++) {
+		char *n;
+		double val;
+		int source_count = 0;
+
+		if (evsel__is_tool(metric_events[i])) {
+			struct stats *stats;
+			double scale;
+
+			switch (metric_events[i]->tool_event) {
+			case PERF_TOOL_DURATION_TIME:
+				stats = &walltime_nsecs_stats;
+				scale = 1e-9;
+				break;
+			case PERF_TOOL_USER_TIME:
+				stats = &ru_stats.ru_utime_usec_stat;
+				scale = 1e-6;
+				break;
+			case PERF_TOOL_SYSTEM_TIME:
+				stats = &ru_stats.ru_stime_usec_stat;
+				scale = 1e-6;
+				break;
+			case PERF_TOOL_NONE:
+				pr_err("Invalid tool event 'none'");
+				abort();
+			case PERF_TOOL_MAX:
+				pr_err("Invalid tool event 'max'");
+				abort();
+			default:
+				pr_err("Unknown tool event '%s'", evsel__name(metric_events[i]));
+				abort();
+			}
+			val = avg_stats(stats) * scale;
+			source_count = 1;
+		} else {
+			struct perf_stat_evsel *ps = metric_events[i]->stats;
+			struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx];
+
+			if (!aggr)
+				break;
+
+                        if (!metric_events[i]->supported) {
+				/*
+				 * Not supported events will have a count of 0,
+				 * which can be confusing in a
+				 * metric. Explicitly set the value to NAN. Not
+				 * counted events (enable time of 0) are read as
+				 * 0.
+				 */
+				val = NAN;
+				source_count = 0;
+			} else {
+				/*
+				 * If an event was scaled during stat gathering,
+				 * reverse the scale before computing the
+				 * metric.
+				 */
+				val = aggr->counts.val * (1.0 / metric_events[i]->scale);
+				source_count = evsel__source_count(metric_events[i]);
+			}
+		}
+		n = strdup(evsel__metric_id(metric_events[i]));
+		if (!n)
+			return -ENOMEM;
+
+		expr__add_id_val_source_count(pctx, n, val, source_count);
+	}
+
+	for (int j = 0; metric_refs && metric_refs[j].metric_name; j++) {
+		int ret = expr__add_ref(pctx, &metric_refs[j]);
+
+		if (ret)
+			return ret;
+	}
+
+	return i;
+}
+
+static void generic_metric(struct perf_stat_config *config,
+			   const char *metric_expr,
+			   const char *metric_threshold,
+			   struct evsel **metric_events,
+			   struct metric_ref *metric_refs,
+			   char *name,
+			   const char *metric_name,
+			   const char *metric_unit,
+			   int runtime,
+			   int aggr_idx,
+			   struct perf_stat_output_ctx *out)
+{
+	print_metric_t print_metric = out->print_metric;
+	struct expr_parse_ctx *pctx;
+	double ratio, scale, threshold;
+	int i;
+	void *ctxp = out->ctx;
+	const char *color = NULL;
+
+	pctx = expr__ctx_new();
+	if (!pctx)
+		return;
+
+	if (config->user_requested_cpu_list)
+		pctx->sctx.user_requested_cpu_list = strdup(config->user_requested_cpu_list);
+	pctx->sctx.runtime = runtime;
+	pctx->sctx.system_wide = config->system_wide;
+	i = prepare_metric(metric_events, metric_refs, pctx, aggr_idx);
+	if (i < 0) {
+		expr__ctx_free(pctx);
+		return;
+	}
+	if (!metric_events[i]) {
+		if (expr__parse(&ratio, pctx, metric_expr) == 0) {
+			char *unit;
+			char metric_bf[64];
+
+			if (metric_threshold &&
+			    expr__parse(&threshold, pctx, metric_threshold) == 0 &&
+			    !isnan(threshold)) {
+				color = fpclassify(threshold) == FP_ZERO
+					? PERF_COLOR_GREEN : PERF_COLOR_RED;
+			}
+
+			if (metric_unit && metric_name) {
+				if (perf_pmu__convert_scale(metric_unit,
+					&unit, &scale) >= 0) {
+					ratio *= scale;
+				}
+				if (strstr(metric_expr, "?"))
+					scnprintf(metric_bf, sizeof(metric_bf),
+					  "%s  %s_%d", unit, metric_name, runtime);
+				else
+					scnprintf(metric_bf, sizeof(metric_bf),
+					  "%s  %s", unit, metric_name);
+
+				print_metric(config, ctxp, color, "%8.1f",
+					     metric_bf, ratio);
+			} else {
+				print_metric(config, ctxp, color, "%8.2f",
+					metric_name ?
+					metric_name :
+					out->force_header ?  name : "",
+					ratio);
+			}
+		} else {
+			print_metric(config, ctxp, color, /*unit=*/NULL,
+				     out->force_header ?
+				     (metric_name ? metric_name : name) : "", 0);
+		}
+	} else {
+		print_metric(config, ctxp, color, /*unit=*/NULL,
+			     out->force_header ?
+			     (metric_name ? metric_name : name) : "", 0);
+	}
+
+	expr__ctx_free(pctx);
+}
+
+double test_generic_metric(struct metric_expr *mexp, int aggr_idx)
+{
+	struct expr_parse_ctx *pctx;
+	double ratio = 0.0;
+
+	pctx = expr__ctx_new();
+	if (!pctx)
+		return NAN;
+
+	if (prepare_metric(mexp->metric_events, mexp->metric_refs, pctx, aggr_idx) < 0)
+		goto out;
+
+	if (expr__parse(&ratio, pctx, mexp->metric_expr))
+		ratio = 0.0;
+
+out:
+	expr__ctx_free(pctx);
+	return ratio;
+}
+
+static void perf_stat__print_metricgroup_header(struct perf_stat_config *config,
+						struct evsel *evsel,
+						void *ctxp,
+						const char *name,
+						struct perf_stat_output_ctx *out)
+{
+	bool need_full_name = perf_pmus__num_core_pmus() > 1;
+	static const char *last_name;
+	static const char *last_pmu;
+	char full_name[64];
+
+	/*
+	 * A metricgroup may have several metric events,
+	 * e.g.,TopdownL1 on e-core of ADL.
+	 * The name has been output by the first metric
+	 * event. Only align with other metics from
+	 * different metric events.
+	 */
+	if (last_name && !strcmp(last_name, name)) {
+		if (!need_full_name || !strcmp(last_pmu, evsel->pmu_name)) {
+			out->print_metricgroup_header(config, ctxp, NULL);
+			return;
+		}
+	}
+
+	if (need_full_name)
+		scnprintf(full_name, sizeof(full_name), "%s (%s)", name, evsel->pmu_name);
+	else
+		scnprintf(full_name, sizeof(full_name), "%s", name);
+
+	out->print_metricgroup_header(config, ctxp, full_name);
+
+	last_name = name;
+	last_pmu = evsel->pmu_name;
+}
+
+/**
+ * perf_stat__print_shadow_stats_metricgroup - Print out metrics associated with the evsel
+ *					       For the non-default, all metrics associated
+ *					       with the evsel are printed.
+ *					       For the default mode, only the metrics from
+ *					       the same metricgroup and the name of the
+ *					       metricgroup are printed. To print the metrics
+ *					       from the next metricgroup (if available),
+ *					       invoke the function with correspoinding
+ *					       metric_expr.
+ */
+void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
+						struct evsel *evsel,
+						int aggr_idx,
+						int *num,
+						void *from,
+						struct perf_stat_output_ctx *out,
+						struct rblist *metric_events)
+{
+	struct metric_event *me;
+	struct metric_expr *mexp = from;
+	void *ctxp = out->ctx;
+	bool header_printed = false;
+	const char *name = NULL;
+
+	me = metricgroup__lookup(metric_events, evsel, false);
+	if (me == NULL)
+		return NULL;
+
+	if (!mexp)
+		mexp = list_first_entry(&me->head, typeof(*mexp), nd);
+
+	list_for_each_entry_from(mexp, &me->head, nd) {
+		/* Print the display name of the Default metricgroup */
+		if (!config->metric_only && me->is_default) {
+			if (!name)
+				name = mexp->default_metricgroup_name;
+			/*
+			 * Two or more metricgroup may share the same metric
+			 * event, e.g., TopdownL1 and TopdownL2 on SPR.
+			 * Return and print the prefix, e.g., noise, running
+			 * for the next metricgroup.
+			 */
+			if (strcmp(name, mexp->default_metricgroup_name))
+				return (void *)mexp;
+			/* Only print the name of the metricgroup once */
+			if (!header_printed) {
+				header_printed = true;
+				perf_stat__print_metricgroup_header(config, evsel, ctxp,
+								    name, out);
+			}
+		}
+
+		if ((*num)++ > 0)
+			out->new_line(config, ctxp);
+		generic_metric(config, mexp->metric_expr, mexp->metric_threshold,
+			       mexp->metric_events, mexp->metric_refs, evsel->name,
+			       mexp->metric_name, mexp->metric_unit, mexp->runtime,
+			       aggr_idx, out);
+	}
+
+	return NULL;
+}
+
+void perf_stat__print_shadow_stats(struct perf_stat_config *config,
+				   struct evsel *evsel,
+				   double avg, int aggr_idx,
+				   struct perf_stat_output_ctx *out,
+				   struct rblist *metric_events)
+{
+	typedef void (*stat_print_function_t)(struct perf_stat_config *config,
+					const struct evsel *evsel,
+					int aggr_idx, double misses,
+					struct perf_stat_output_ctx *out);
+	static const stat_print_function_t stat_print_function[STAT_MAX] = {
+		[STAT_INSTRUCTIONS] = print_instructions,
+		[STAT_BRANCH_MISS] = print_branch_miss,
+		[STAT_L1D_MISS] = print_l1d_miss,
+		[STAT_L1I_MISS] = print_l1i_miss,
+		[STAT_DTLB_MISS] = print_dtlb_miss,
+		[STAT_ITLB_MISS] = print_itlb_miss,
+		[STAT_LL_MISS] = print_ll_miss,
+		[STAT_CACHE_MISSES] = print_cache_miss,
+		[STAT_STALLED_CYCLES_FRONT] = print_stalled_cycles_front,
+		[STAT_STALLED_CYCLES_BACK] = print_stalled_cycles_back,
+		[STAT_CYCLES] = print_cycles,
+		[STAT_NSECS] = print_nsecs,
+	};
+	print_metric_t print_metric = out->print_metric;
+	void *ctxp = out->ctx;
+	int num = 1;
+
+	if (config->iostat_run) {
+		iostat_print_metric(config, evsel, out);
+	} else {
+		stat_print_function_t fn = stat_print_function[evsel__stat_type(evsel)];
+
+		if (fn)
+			fn(config, evsel, aggr_idx, avg, out);
+		else {
+			double nsecs =	find_stat(evsel, aggr_idx, STAT_NSECS);
+
+			if (nsecs) {
+				char unit = ' ';
+				char unit_buf[10] = "/sec";
+				double ratio = convert_unit_double(1000000000.0 * avg / nsecs,
+								   &unit);
+
+				if (unit != ' ')
+					snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
+				print_metric(config, ctxp, NULL, "%8.3f", unit_buf, ratio);
+			} else
+				num = 0;
+		}
+	}
+
+	perf_stat__print_shadow_stats_metricgroup(config, evsel, aggr_idx,
+						  &num, NULL, out, metric_events);
+
+	if (num == 0)
+		print_metric(config, ctxp, NULL, NULL, NULL, 0);
+}
+
+/**
+ * perf_stat__skip_metric_event - Skip the evsel in the Default metricgroup,
+ *				  if it's not running or not the metric event.
+ */
+bool perf_stat__skip_metric_event(struct evsel *evsel,
+				  struct rblist *metric_events,
+				  u64 ena, u64 run)
+{
+	if (!evsel->default_metricgroup)
+		return false;
+
+	if (!ena || !run)
+		return true;
+
+	return !metricgroup__lookup(metric_events, evsel, false);
+}