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Date:   Thu, 30 Aug 2018 08:32:52 +0200
From:   Jiri Olsa <jolsa@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Andi Kleen <andi@...stfloor.org>
Subject: [PATCH 43/43] perf stat: Move display functions into stat-display.c

Moving perf_evlist__print_counters function with all its
dependency functions to stat-display.c object.

Link: http://lkml.kernel.org/n/tip-illv2t5x1amh8z506nxp7z7b@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/builtin-stat.c      | 1150 -------------------------------
 tools/perf/util/Build          |    1 +
 tools/perf/util/stat-display.c | 1166 ++++++++++++++++++++++++++++++++
 tools/perf/util/stat.h         |    6 +
 4 files changed, 1173 insertions(+), 1150 deletions(-)
 create mode 100644 tools/perf/util/stat-display.c

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f4ddedc8619b..0b0e3961d511 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -88,8 +88,6 @@
 #include "sane_ctype.h"
 
 #define DEFAULT_SEPARATOR	" "
-#define CNTR_NOT_SUPPORTED	"<not supported>"
-#define CNTR_NOT_COUNTED	"<not counted>"
 #define FREEZE_ON_SMI_PATH	"devices/cpu/freeze_on_smi"
 
 static void print_counters(struct timespec *ts, int argc, const char **argv);
@@ -189,11 +187,6 @@ static struct perf_stat_config stat_config = {
 	.big_num		= true,
 };
 
-static bool is_duration_time(struct perf_evsel *evsel)
-{
-	return !strcmp(evsel->name, "duration_time");
-}
-
 static inline void diff_timespec(struct timespec *r, struct timespec *a,
 				 struct timespec *b)
 {
@@ -643,1149 +636,6 @@ static int run_perf_stat(int argc, const char **argv, int run_idx)
 	return ret;
 }
 
-static void print_running(struct perf_stat_config *config,
-			  u64 run, u64 ena)
-{
-	if (config->csv_output) {
-		fprintf(config->output, "%s%" PRIu64 "%s%.2f",
-					config->csv_sep,
-					run,
-					config->csv_sep,
-					ena ? 100.0 * run / ena : 100.0);
-	} else if (run != ena) {
-		fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
-	}
-}
-
-static void print_noise_pct(struct perf_stat_config *config,
-			    double total, double avg)
-{
-	double pct = rel_stddev_stats(total, avg);
-
-	if (config->csv_output)
-		fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
-	else if (pct)
-		fprintf(config->output, "  ( +-%6.2f%% )", pct);
-}
-
-static void print_noise(struct perf_stat_config *config,
-			struct perf_evsel *evsel, double avg)
-{
-	struct perf_stat_evsel *ps;
-
-	if (config->run_count == 1)
-		return;
-
-	ps = evsel->stats;
-	print_noise_pct(config, stddev_stats(&ps->res_stats[0]), avg);
-}
-
-static void aggr_printout(struct perf_stat_config *config,
-			  struct perf_evsel *evsel, int id, int nr)
-{
-	switch (config->aggr_mode) {
-	case AGGR_CORE:
-		fprintf(config->output, "S%d-C%*d%s%*d%s",
-			cpu_map__id_to_socket(id),
-			config->csv_output ? 0 : -8,
-			cpu_map__id_to_cpu(id),
-			config->csv_sep,
-			config->csv_output ? 0 : 4,
-			nr,
-			config->csv_sep);
-		break;
-	case AGGR_SOCKET:
-		fprintf(config->output, "S%*d%s%*d%s",
-			config->csv_output ? 0 : -5,
-			id,
-			config->csv_sep,
-			config->csv_output ? 0 : 4,
-			nr,
-			config->csv_sep);
-			break;
-	case AGGR_NONE:
-		fprintf(config->output, "CPU%*d%s",
-			config->csv_output ? 0 : -4,
-			perf_evsel__cpus(evsel)->map[id], config->csv_sep);
-		break;
-	case AGGR_THREAD:
-		fprintf(config->output, "%*s-%*d%s",
-			config->csv_output ? 0 : 16,
-			thread_map__comm(evsel->threads, id),
-			config->csv_output ? 0 : -8,
-			thread_map__pid(evsel->threads, id),
-			config->csv_sep);
-		break;
-	case AGGR_GLOBAL:
-	case AGGR_UNSET:
-	default:
-		break;
-	}
-}
-
-struct outstate {
-	FILE *fh;
-	bool newline;
-	const char *prefix;
-	int  nfields;
-	int  id, nr;
-	struct perf_evsel *evsel;
-};
-
-#define METRIC_LEN  35
-
-static void new_line_std(struct perf_stat_config *config __maybe_unused,
-			 void *ctx)
-{
-	struct outstate *os = ctx;
-
-	os->newline = true;
-}
-
-static void do_new_line_std(struct perf_stat_config *config,
-			    struct outstate *os)
-{
-	fputc('\n', os->fh);
-	fputs(os->prefix, os->fh);
-	aggr_printout(config, os->evsel, os->id, os->nr);
-	if (config->aggr_mode == AGGR_NONE)
-		fprintf(os->fh, "        ");
-	fprintf(os->fh, "                                                 ");
-}
-
-static void print_metric_std(struct perf_stat_config *config,
-			     void *ctx, const char *color, const char *fmt,
-			     const char *unit, double val)
-{
-	struct outstate *os = ctx;
-	FILE *out = os->fh;
-	int n;
-	bool newline = os->newline;
-
-	os->newline = false;
-
-	if (unit == NULL || fmt == NULL) {
-		fprintf(out, "%-*s", METRIC_LEN, "");
-		return;
-	}
-
-	if (newline)
-		do_new_line_std(config, os);
-
-	n = fprintf(out, " # ");
-	if (color)
-		n += color_fprintf(out, color, fmt, val);
-	else
-		n += fprintf(out, fmt, val);
-	fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
-}
-
-static void new_line_csv(struct perf_stat_config *config, void *ctx)
-{
-	struct outstate *os = ctx;
-	int i;
-
-	fputc('\n', os->fh);
-	if (os->prefix)
-		fprintf(os->fh, "%s%s", os->prefix, config->csv_sep);
-	aggr_printout(config, os->evsel, os->id, os->nr);
-	for (i = 0; i < os->nfields; i++)
-		fputs(config->csv_sep, os->fh);
-}
-
-static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
-			     void *ctx,
-			     const char *color __maybe_unused,
-			     const char *fmt, const char *unit, double val)
-{
-	struct outstate *os = ctx;
-	FILE *out = os->fh;
-	char buf[64], *vals, *ends;
-
-	if (unit == NULL || fmt == NULL) {
-		fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
-		return;
-	}
-	snprintf(buf, sizeof(buf), fmt, val);
-	ends = vals = ltrim(buf);
-	while (isdigit(*ends) || *ends == '.')
-		ends++;
-	*ends = 0;
-	while (isspace(*unit))
-		unit++;
-	fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, unit);
-}
-
-/* Filter out some columns that don't work well in metrics only mode */
-
-static bool valid_only_metric(const char *unit)
-{
-	if (!unit)
-		return false;
-	if (strstr(unit, "/sec") ||
-	    strstr(unit, "hz") ||
-	    strstr(unit, "Hz") ||
-	    strstr(unit, "CPUs utilized"))
-		return false;
-	return true;
-}
-
-static const char *fixunit(char *buf, struct perf_evsel *evsel,
-			   const char *unit)
-{
-	if (!strncmp(unit, "of all", 6)) {
-		snprintf(buf, 1024, "%s %s", perf_evsel__name(evsel),
-			 unit);
-		return buf;
-	}
-	return unit;
-}
-
-static void print_metric_only(struct perf_stat_config *config,
-			      void *ctx, const char *color, const char *fmt,
-			      const char *unit, double val)
-{
-	struct outstate *os = ctx;
-	FILE *out = os->fh;
-	char buf[1024], str[1024];
-	unsigned mlen = config->metric_only_len;
-
-	if (!valid_only_metric(unit))
-		return;
-	unit = fixunit(buf, os->evsel, unit);
-	if (mlen < strlen(unit))
-		mlen = strlen(unit) + 1;
-
-	if (color)
-		mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
-
-	color_snprintf(str, sizeof(str), color ?: "", fmt, val);
-	fprintf(out, "%*s ", mlen, str);
-}
-
-static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
-				  void *ctx, const char *color __maybe_unused,
-				  const char *fmt,
-				  const char *unit, double val)
-{
-	struct outstate *os = ctx;
-	FILE *out = os->fh;
-	char buf[64], *vals, *ends;
-	char tbuf[1024];
-
-	if (!valid_only_metric(unit))
-		return;
-	unit = fixunit(tbuf, os->evsel, unit);
-	snprintf(buf, sizeof buf, fmt, val);
-	ends = vals = ltrim(buf);
-	while (isdigit(*ends) || *ends == '.')
-		ends++;
-	*ends = 0;
-	fprintf(out, "%s%s", vals, config->csv_sep);
-}
-
-static void new_line_metric(struct perf_stat_config *config __maybe_unused,
-			    void *ctx __maybe_unused)
-{
-}
-
-static void print_metric_header(struct perf_stat_config *config,
-				void *ctx, const char *color __maybe_unused,
-				const char *fmt __maybe_unused,
-				const char *unit, double val __maybe_unused)
-{
-	struct outstate *os = ctx;
-	char tbuf[1024];
-
-	if (!valid_only_metric(unit))
-		return;
-	unit = fixunit(tbuf, os->evsel, unit);
-	if (config->csv_output)
-		fprintf(os->fh, "%s%s", unit, config->csv_sep);
-	else
-		fprintf(os->fh, "%*s ", config->metric_only_len, unit);
-}
-
-static int first_shadow_cpu(struct perf_stat_config *config,
-			    struct perf_evsel *evsel, int id)
-{
-	struct perf_evlist *evlist = evsel->evlist;
-	int i;
-
-	if (!config->aggr_get_id)
-		return 0;
-
-	if (config->aggr_mode == AGGR_NONE)
-		return id;
-
-	if (config->aggr_mode == AGGR_GLOBAL)
-		return 0;
-
-	for (i = 0; i < perf_evsel__nr_cpus(evsel); i++) {
-		int cpu2 = perf_evsel__cpus(evsel)->map[i];
-
-		if (config->aggr_get_id(config, evlist->cpus, cpu2) == id)
-			return cpu2;
-	}
-	return 0;
-}
-
-static void abs_printout(struct perf_stat_config *config,
-			 int id, int nr, struct perf_evsel *evsel, double avg)
-{
-	FILE *output = config->output;
-	double sc =  evsel->scale;
-	const char *fmt;
-
-	if (config->csv_output) {
-		fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
-	} else {
-		if (config->big_num)
-			fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
-		else
-			fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
-	}
-
-	aggr_printout(config, evsel, id, nr);
-
-	fprintf(output, fmt, avg, config->csv_sep);
-
-	if (evsel->unit)
-		fprintf(output, "%-*s%s",
-			config->csv_output ? 0 : config->unit_width,
-			evsel->unit, config->csv_sep);
-
-	fprintf(output, "%-*s", config->csv_output ? 0 : 25, perf_evsel__name(evsel));
-
-	if (evsel->cgrp)
-		fprintf(output, "%s%s", config->csv_sep, evsel->cgrp->name);
-}
-
-static bool is_mixed_hw_group(struct perf_evsel *counter)
-{
-	struct perf_evlist *evlist = counter->evlist;
-	u32 pmu_type = counter->attr.type;
-	struct perf_evsel *pos;
-
-	if (counter->nr_members < 2)
-		return false;
-
-	evlist__for_each_entry(evlist, pos) {
-		/* software events can be part of any hardware group */
-		if (pos->attr.type == PERF_TYPE_SOFTWARE)
-			continue;
-		if (pmu_type == PERF_TYPE_SOFTWARE) {
-			pmu_type = pos->attr.type;
-			continue;
-		}
-		if (pmu_type != pos->attr.type)
-			return true;
-	}
-
-	return false;
-}
-
-static void printout(struct perf_stat_config *config, int id, int nr,
-		     struct perf_evsel *counter, double uval,
-		     char *prefix, u64 run, u64 ena, double noise,
-		     struct runtime_stat *st)
-{
-	struct perf_stat_output_ctx out;
-	struct outstate os = {
-		.fh = config->output,
-		.prefix = prefix ? prefix : "",
-		.id = id,
-		.nr = nr,
-		.evsel = counter,
-	};
-	print_metric_t pm = print_metric_std;
-	new_line_t nl;
-
-	if (config->metric_only) {
-		nl = new_line_metric;
-		if (config->csv_output)
-			pm = print_metric_only_csv;
-		else
-			pm = print_metric_only;
-	} else
-		nl = new_line_std;
-
-	if (config->csv_output && !config->metric_only) {
-		static int aggr_fields[] = {
-			[AGGR_GLOBAL] = 0,
-			[AGGR_THREAD] = 1,
-			[AGGR_NONE] = 1,
-			[AGGR_SOCKET] = 2,
-			[AGGR_CORE] = 2,
-		};
-
-		pm = print_metric_csv;
-		nl = new_line_csv;
-		os.nfields = 3;
-		os.nfields += aggr_fields[config->aggr_mode];
-		if (counter->cgrp)
-			os.nfields++;
-	}
-	if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
-		if (config->metric_only) {
-			pm(config, &os, NULL, "", "", 0);
-			return;
-		}
-		aggr_printout(config, counter, id, nr);
-
-		fprintf(config->output, "%*s%s",
-			config->csv_output ? 0 : 18,
-			counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
-			config->csv_sep);
-
-		if (counter->supported) {
-			config->print_free_counters_hint = 1;
-			if (is_mixed_hw_group(counter))
-				config->print_mixed_hw_group_error = 1;
-		}
-
-		fprintf(config->output, "%-*s%s",
-			config->csv_output ? 0 : config->unit_width,
-			counter->unit, config->csv_sep);
-
-		fprintf(config->output, "%*s",
-			config->csv_output ? 0 : -25,
-			perf_evsel__name(counter));
-
-		if (counter->cgrp)
-			fprintf(config->output, "%s%s",
-				config->csv_sep, counter->cgrp->name);
-
-		if (!config->csv_output)
-			pm(config, &os, NULL, NULL, "", 0);
-		print_noise(config, counter, noise);
-		print_running(config, run, ena);
-		if (config->csv_output)
-			pm(config, &os, NULL, NULL, "", 0);
-		return;
-	}
-
-	if (!config->metric_only)
-		abs_printout(config, id, nr, counter, uval);
-
-	out.print_metric = pm;
-	out.new_line = nl;
-	out.ctx = &os;
-	out.force_header = false;
-
-	if (config->csv_output && !config->metric_only) {
-		print_noise(config, counter, noise);
-		print_running(config, run, ena);
-	}
-
-	perf_stat__print_shadow_stats(config, counter, uval,
-				first_shadow_cpu(config, counter, id),
-				&out, &config->metric_events, st);
-	if (!config->csv_output && !config->metric_only) {
-		print_noise(config, counter, noise);
-		print_running(config, run, ena);
-	}
-}
-
-static void aggr_update_shadow(struct perf_stat_config *config,
-			       struct perf_evlist *evlist)
-{
-	int cpu, s2, id, s;
-	u64 val;
-	struct perf_evsel *counter;
-
-	for (s = 0; s < config->aggr_map->nr; s++) {
-		id = config->aggr_map->map[s];
-		evlist__for_each_entry(evlist, counter) {
-			val = 0;
-			for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
-				s2 = config->aggr_get_id(config, evlist->cpus, cpu);
-				if (s2 != id)
-					continue;
-				val += perf_counts(counter->counts, cpu, 0)->val;
-			}
-			perf_stat__update_shadow_stats(counter, val,
-					first_shadow_cpu(config, counter, id),
-					&rt_stat);
-		}
-	}
-}
-
-static void uniquify_event_name(struct perf_evsel *counter)
-{
-	char *new_name;
-	char *config;
-
-	if (counter->uniquified_name ||
-	    !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
-					   strlen(counter->pmu_name)))
-		return;
-
-	config = strchr(counter->name, '/');
-	if (config) {
-		if (asprintf(&new_name,
-			     "%s%s", counter->pmu_name, config) > 0) {
-			free(counter->name);
-			counter->name = new_name;
-		}
-	} else {
-		if (asprintf(&new_name,
-			     "%s [%s]", counter->name, counter->pmu_name) > 0) {
-			free(counter->name);
-			counter->name = new_name;
-		}
-	}
-
-	counter->uniquified_name = true;
-}
-
-static void collect_all_aliases(struct perf_stat_config *config, struct perf_evsel *counter,
-			    void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data,
-				       bool first),
-			    void *data)
-{
-	struct perf_evlist *evlist = counter->evlist;
-	struct perf_evsel *alias;
-
-	alias = list_prepare_entry(counter, &(evlist->entries), node);
-	list_for_each_entry_continue (alias, &evlist->entries, node) {
-		if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
-		    alias->scale != counter->scale ||
-		    alias->cgrp != counter->cgrp ||
-		    strcmp(alias->unit, counter->unit) ||
-		    perf_evsel__is_clock(alias) != perf_evsel__is_clock(counter))
-			break;
-		alias->merged_stat = true;
-		cb(config, alias, data, false);
-	}
-}
-
-static bool collect_data(struct perf_stat_config *config, struct perf_evsel *counter,
-			    void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data,
-				       bool first),
-			    void *data)
-{
-	if (counter->merged_stat)
-		return false;
-	cb(config, counter, data, true);
-	if (config->no_merge)
-		uniquify_event_name(counter);
-	else if (counter->auto_merge_stats)
-		collect_all_aliases(config, counter, cb, data);
-	return true;
-}
-
-struct aggr_data {
-	u64 ena, run, val;
-	int id;
-	int nr;
-	int cpu;
-};
-
-static void aggr_cb(struct perf_stat_config *config,
-		    struct perf_evsel *counter, void *data, bool first)
-{
-	struct aggr_data *ad = data;
-	int cpu, s2;
-
-	for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
-		struct perf_counts_values *counts;
-
-		s2 = config->aggr_get_id(config, perf_evsel__cpus(counter), cpu);
-		if (s2 != ad->id)
-			continue;
-		if (first)
-			ad->nr++;
-		counts = perf_counts(counter->counts, cpu, 0);
-		/*
-		 * When any result is bad, make them all to give
-		 * consistent output in interval mode.
-		 */
-		if (counts->ena == 0 || counts->run == 0 ||
-		    counter->counts->scaled == -1) {
-			ad->ena = 0;
-			ad->run = 0;
-			break;
-		}
-		ad->val += counts->val;
-		ad->ena += counts->ena;
-		ad->run += counts->run;
-	}
-}
-
-static void print_aggr(struct perf_stat_config *config,
-		       struct perf_evlist *evlist,
-		       char *prefix)
-{
-	bool metric_only = config->metric_only;
-	FILE *output = config->output;
-	struct perf_evsel *counter;
-	int s, id, nr;
-	double uval;
-	u64 ena, run, val;
-	bool first;
-
-	if (!(config->aggr_map || config->aggr_get_id))
-		return;
-
-	aggr_update_shadow(config, evlist);
-
-	/*
-	 * With metric_only everything is on a single line.
-	 * Without each counter has its own line.
-	 */
-	for (s = 0; s < config->aggr_map->nr; s++) {
-		struct aggr_data ad;
-		if (prefix && metric_only)
-			fprintf(output, "%s", prefix);
-
-		ad.id = id = config->aggr_map->map[s];
-		first = true;
-		evlist__for_each_entry(evlist, counter) {
-			if (is_duration_time(counter))
-				continue;
-
-			ad.val = ad.ena = ad.run = 0;
-			ad.nr = 0;
-			if (!collect_data(config, counter, aggr_cb, &ad))
-				continue;
-			nr = ad.nr;
-			ena = ad.ena;
-			run = ad.run;
-			val = ad.val;
-			if (first && metric_only) {
-				first = false;
-				aggr_printout(config, counter, id, nr);
-			}
-			if (prefix && !metric_only)
-				fprintf(output, "%s", prefix);
-
-			uval = val * counter->scale;
-			printout(config, id, nr, counter, uval, prefix,
-				 run, ena, 1.0, &rt_stat);
-			if (!metric_only)
-				fputc('\n', output);
-		}
-		if (metric_only)
-			fputc('\n', output);
-	}
-}
-
-static int cmp_val(const void *a, const void *b)
-{
-	return ((struct perf_aggr_thread_value *)b)->val -
-		((struct perf_aggr_thread_value *)a)->val;
-}
-
-static struct perf_aggr_thread_value *sort_aggr_thread(
-					struct perf_evsel *counter,
-					int nthreads, int ncpus,
-					int *ret,
-					struct target *_target)
-{
-	int cpu, thread, i = 0;
-	double uval;
-	struct perf_aggr_thread_value *buf;
-
-	buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value));
-	if (!buf)
-		return NULL;
-
-	for (thread = 0; thread < nthreads; thread++) {
-		u64 ena = 0, run = 0, val = 0;
-
-		for (cpu = 0; cpu < ncpus; cpu++) {
-			val += perf_counts(counter->counts, cpu, thread)->val;
-			ena += perf_counts(counter->counts, cpu, thread)->ena;
-			run += perf_counts(counter->counts, cpu, thread)->run;
-		}
-
-		uval = val * counter->scale;
-
-		/*
-		 * Skip value 0 when enabling --per-thread globally,
-		 * otherwise too many 0 output.
-		 */
-		if (uval == 0.0 && target__has_per_thread(_target))
-			continue;
-
-		buf[i].counter = counter;
-		buf[i].id = thread;
-		buf[i].uval = uval;
-		buf[i].val = val;
-		buf[i].run = run;
-		buf[i].ena = ena;
-		i++;
-	}
-
-	qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val);
-
-	if (ret)
-		*ret = i;
-
-	return buf;
-}
-
-static void print_aggr_thread(struct perf_stat_config *config,
-			      struct target *_target,
-			      struct perf_evsel *counter, char *prefix)
-{
-	FILE *output = config->output;
-	int nthreads = thread_map__nr(counter->threads);
-	int ncpus = cpu_map__nr(counter->cpus);
-	int thread, sorted_threads, id;
-	struct perf_aggr_thread_value *buf;
-
-	buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
-	if (!buf) {
-		perror("cannot sort aggr thread");
-		return;
-	}
-
-	for (thread = 0; thread < sorted_threads; thread++) {
-		if (prefix)
-			fprintf(output, "%s", prefix);
-
-		id = buf[thread].id;
-		if (config->stats)
-			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
-				 prefix, buf[thread].run, buf[thread].ena, 1.0,
-				 &config->stats[id]);
-		else
-			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
-				 prefix, buf[thread].run, buf[thread].ena, 1.0,
-				 &rt_stat);
-		fputc('\n', output);
-	}
-
-	free(buf);
-}
-
-struct caggr_data {
-	double avg, avg_enabled, avg_running;
-};
-
-static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused,
-			    struct perf_evsel *counter, void *data,
-			    bool first __maybe_unused)
-{
-	struct caggr_data *cd = data;
-	struct perf_stat_evsel *ps = counter->stats;
-
-	cd->avg += avg_stats(&ps->res_stats[0]);
-	cd->avg_enabled += avg_stats(&ps->res_stats[1]);
-	cd->avg_running += avg_stats(&ps->res_stats[2]);
-}
-
-/*
- * Print out the results of a single counter:
- * aggregated counts in system-wide mode
- */
-static void print_counter_aggr(struct perf_stat_config *config,
-			       struct perf_evsel *counter, char *prefix)
-{
-	bool metric_only = config->metric_only;
-	FILE *output = config->output;
-	double uval;
-	struct caggr_data cd = { .avg = 0.0 };
-
-	if (!collect_data(config, counter, counter_aggr_cb, &cd))
-		return;
-
-	if (prefix && !metric_only)
-		fprintf(output, "%s", prefix);
-
-	uval = cd.avg * counter->scale;
-	printout(config, -1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled,
-		 cd.avg, &rt_stat);
-	if (!metric_only)
-		fprintf(output, "\n");
-}
-
-static void counter_cb(struct perf_stat_config *config __maybe_unused,
-		       struct perf_evsel *counter, void *data,
-		       bool first __maybe_unused)
-{
-	struct aggr_data *ad = data;
-
-	ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;
-	ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;
-	ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;
-}
-
-/*
- * Print out the results of a single counter:
- * does not use aggregated count in system-wide
- */
-static void print_counter(struct perf_stat_config *config,
-			  struct perf_evsel *counter, char *prefix)
-{
-	FILE *output = config->output;
-	u64 ena, run, val;
-	double uval;
-	int cpu;
-
-	for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
-		struct aggr_data ad = { .cpu = cpu };
-
-		if (!collect_data(config, counter, counter_cb, &ad))
-			return;
-		val = ad.val;
-		ena = ad.ena;
-		run = ad.run;
-
-		if (prefix)
-			fprintf(output, "%s", prefix);
-
-		uval = val * counter->scale;
-		printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
-			 &rt_stat);
-
-		fputc('\n', output);
-	}
-}
-
-static void print_no_aggr_metric(struct perf_stat_config *config,
-				 struct perf_evlist *evlist,
-				 char *prefix)
-{
-	int cpu;
-	int nrcpus = 0;
-	struct perf_evsel *counter;
-	u64 ena, run, val;
-	double uval;
-
-	nrcpus = evlist->cpus->nr;
-	for (cpu = 0; cpu < nrcpus; cpu++) {
-		bool first = true;
-
-		if (prefix)
-			fputs(prefix, config->output);
-		evlist__for_each_entry(evlist, counter) {
-			if (is_duration_time(counter))
-				continue;
-			if (first) {
-				aggr_printout(config, counter, cpu, 0);
-				first = false;
-			}
-			val = perf_counts(counter->counts, cpu, 0)->val;
-			ena = perf_counts(counter->counts, cpu, 0)->ena;
-			run = perf_counts(counter->counts, cpu, 0)->run;
-
-			uval = val * counter->scale;
-			printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
-				 &rt_stat);
-		}
-		fputc('\n', config->output);
-	}
-}
-
-static int aggr_header_lens[] = {
-	[AGGR_CORE] = 18,
-	[AGGR_SOCKET] = 12,
-	[AGGR_NONE] = 6,
-	[AGGR_THREAD] = 24,
-	[AGGR_GLOBAL] = 0,
-};
-
-static const char *aggr_header_csv[] = {
-	[AGGR_CORE] 	= 	"core,cpus,",
-	[AGGR_SOCKET] 	= 	"socket,cpus",
-	[AGGR_NONE] 	= 	"cpu,",
-	[AGGR_THREAD] 	= 	"comm-pid,",
-	[AGGR_GLOBAL] 	=	""
-};
-
-static void print_metric_headers(struct perf_stat_config *config,
-				 struct perf_evlist *evlist,
-				 const char *prefix, bool no_indent)
-{
-	struct perf_stat_output_ctx out;
-	struct perf_evsel *counter;
-	struct outstate os = {
-		.fh = config->output
-	};
-
-	if (prefix)
-		fprintf(config->output, "%s", prefix);
-
-	if (!config->csv_output && !no_indent)
-		fprintf(config->output, "%*s",
-			aggr_header_lens[config->aggr_mode], "");
-	if (config->csv_output) {
-		if (config->interval)
-			fputs("time,", config->output);
-		fputs(aggr_header_csv[config->aggr_mode], config->output);
-	}
-
-	/* Print metrics headers only */
-	evlist__for_each_entry(evlist, counter) {
-		if (is_duration_time(counter))
-			continue;
-		os.evsel = counter;
-		out.ctx = &os;
-		out.print_metric = print_metric_header;
-		out.new_line = new_line_metric;
-		out.force_header = true;
-		os.evsel = counter;
-		perf_stat__print_shadow_stats(config, counter, 0,
-					      0,
-					      &out,
-					      &config->metric_events,
-					      &rt_stat);
-	}
-	fputc('\n', config->output);
-}
-
-static void print_interval(struct perf_stat_config *config,
-			   struct perf_evlist *evlist,
-			   char *prefix, struct timespec *ts)
-{
-	bool metric_only = config->metric_only;
-	unsigned int unit_width = config->unit_width;
-	FILE *output = config->output;
-	static int num_print_interval;
-
-	if (config->interval_clear)
-		puts(CONSOLE_CLEAR);
-
-	sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep);
-
-	if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) {
-		switch (config->aggr_mode) {
-		case AGGR_SOCKET:
-			fprintf(output, "#           time socket cpus");
-			if (!metric_only)
-				fprintf(output, "             counts %*s events\n", unit_width, "unit");
-			break;
-		case AGGR_CORE:
-			fprintf(output, "#           time core         cpus");
-			if (!metric_only)
-				fprintf(output, "             counts %*s events\n", unit_width, "unit");
-			break;
-		case AGGR_NONE:
-			fprintf(output, "#           time CPU    ");
-			if (!metric_only)
-				fprintf(output, "                counts %*s events\n", unit_width, "unit");
-			break;
-		case AGGR_THREAD:
-			fprintf(output, "#           time             comm-pid");
-			if (!metric_only)
-				fprintf(output, "                  counts %*s events\n", unit_width, "unit");
-			break;
-		case AGGR_GLOBAL:
-		default:
-			fprintf(output, "#           time");
-			if (!metric_only)
-				fprintf(output, "             counts %*s events\n", unit_width, "unit");
-		case AGGR_UNSET:
-			break;
-		}
-	}
-
-	if ((num_print_interval == 0 || config->interval_clear) && metric_only)
-		print_metric_headers(config, evlist, " ", true);
-	if (++num_print_interval == 25)
-		num_print_interval = 0;
-}
-
-static void print_header(struct perf_stat_config *config,
-			 struct target *_target,
-			 int argc, const char **argv)
-{
-	FILE *output = config->output;
-	int i;
-
-	fflush(stdout);
-
-	if (!config->csv_output) {
-		fprintf(output, "\n");
-		fprintf(output, " Performance counter stats for ");
-		if (_target->system_wide)
-			fprintf(output, "\'system wide");
-		else if (_target->cpu_list)
-			fprintf(output, "\'CPU(s) %s", _target->cpu_list);
-		else if (!target__has_task(_target)) {
-			fprintf(output, "\'%s", argv ? argv[0] : "pipe");
-			for (i = 1; argv && (i < argc); i++)
-				fprintf(output, " %s", argv[i]);
-		} else if (_target->pid)
-			fprintf(output, "process id \'%s", _target->pid);
-		else
-			fprintf(output, "thread id \'%s", _target->tid);
-
-		fprintf(output, "\'");
-		if (config->run_count > 1)
-			fprintf(output, " (%d runs)", config->run_count);
-		fprintf(output, ":\n\n");
-	}
-}
-
-static int get_precision(double num)
-{
-	if (num > 1)
-		return 0;
-
-	return lround(ceil(-log10(num)));
-}
-
-static void print_table(struct perf_stat_config *config,
-			FILE *output, int precision, double avg)
-{
-	char tmp[64];
-	int idx, indent = 0;
-
-	scnprintf(tmp, 64, " %17.*f", precision, avg);
-	while (tmp[indent] == ' ')
-		indent++;
-
-	fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
-
-	for (idx = 0; idx < config->run_count; idx++) {
-		double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
-		int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
-
-		fprintf(output, " %17.*f (%+.*f) ",
-			precision, run, precision, run - avg);
-
-		for (h = 0; h < n; h++)
-			fprintf(output, "#");
-
-		fprintf(output, "\n");
-	}
-
-	fprintf(output, "\n%*s# Final result:\n", indent, "");
-}
-
-static double timeval2double(struct timeval *t)
-{
-	return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
-}
-
-static void print_footer(struct perf_stat_config *config)
-{
-	double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
-	FILE *output = config->output;
-	int n;
-
-	if (!config->null_run)
-		fprintf(output, "\n");
-
-	if (config->run_count == 1) {
-		fprintf(output, " %17.9f seconds time elapsed", avg);
-
-		if (config->ru_display) {
-			double ru_utime = timeval2double(&config->ru_data.ru_utime);
-			double ru_stime = timeval2double(&config->ru_data.ru_stime);
-
-			fprintf(output, "\n\n");
-			fprintf(output, " %17.9f seconds user\n", ru_utime);
-			fprintf(output, " %17.9f seconds sys\n", ru_stime);
-		}
-	} else {
-		double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
-		/*
-		 * Display at most 2 more significant
-		 * digits than the stddev inaccuracy.
-		 */
-		int precision = get_precision(sd) + 2;
-
-		if (config->walltime_run_table)
-			print_table(config, output, precision, avg);
-
-		fprintf(output, " %17.*f +- %.*f seconds time elapsed",
-			precision, avg, precision, sd);
-
-		print_noise_pct(config, sd, avg);
-	}
-	fprintf(output, "\n\n");
-
-	if (config->print_free_counters_hint &&
-	    sysctl__read_int("kernel/nmi_watchdog", &n) >= 0 &&
-	    n > 0)
-		fprintf(output,
-"Some events weren't counted. Try disabling the NMI watchdog:\n"
-"	echo 0 > /proc/sys/kernel/nmi_watchdog\n"
-"	perf stat ...\n"
-"	echo 1 > /proc/sys/kernel/nmi_watchdog\n");
-
-	if (config->print_mixed_hw_group_error)
-		fprintf(output,
-			"The events in group usually have to be from "
-			"the same PMU. Try reorganizing the group.\n");
-}
-
-static void
-perf_evlist__print_counters(struct perf_evlist *evlist,
-			    struct perf_stat_config *config,
-			    struct target *_target,
-			    struct timespec *ts,
-			    int argc, const char **argv)
-{
-	bool metric_only = config->metric_only;
-	int interval = config->interval;
-	struct perf_evsel *counter;
-	char buf[64], *prefix = NULL;
-
-	if (interval)
-		print_interval(config, evlist, prefix = buf, ts);
-	else
-		print_header(config, _target, argc, argv);
-
-	if (metric_only) {
-		static int num_print_iv;
-
-		if (num_print_iv == 0 && !interval)
-			print_metric_headers(config, evlist, prefix, false);
-		if (num_print_iv++ == 25)
-			num_print_iv = 0;
-		if (config->aggr_mode == AGGR_GLOBAL && prefix)
-			fprintf(config->output, "%s", prefix);
-	}
-
-	switch (config->aggr_mode) {
-	case AGGR_CORE:
-	case AGGR_SOCKET:
-		print_aggr(config, evlist, prefix);
-		break;
-	case AGGR_THREAD:
-		evlist__for_each_entry(evlist, counter) {
-			if (is_duration_time(counter))
-				continue;
-			print_aggr_thread(config, _target, counter, prefix);
-		}
-		break;
-	case AGGR_GLOBAL:
-		evlist__for_each_entry(evlist, counter) {
-			if (is_duration_time(counter))
-				continue;
-			print_counter_aggr(config, counter, prefix);
-		}
-		if (metric_only)
-			fputc('\n', config->output);
-		break;
-	case AGGR_NONE:
-		if (metric_only)
-			print_no_aggr_metric(config, evlist, prefix);
-		else {
-			evlist__for_each_entry(evlist, counter) {
-				if (is_duration_time(counter))
-					continue;
-				print_counter(config, counter, prefix);
-			}
-		}
-		break;
-	case AGGR_UNSET:
-	default:
-		break;
-	}
-
-	if (!interval && !config->csv_output)
-		print_footer(config);
-
-	fflush(config->output);
-}
-
 static void print_counters(struct timespec *ts, int argc, const char **argv)
 {
 	/* Do not print anything if we record to the pipe. */
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 7efe15b9618d..ecd9f9ceda77 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -73,6 +73,7 @@ libperf-y += vdso.o
 libperf-y += counts.o
 libperf-y += stat.o
 libperf-y += stat-shadow.o
+libperf-y += stat-display.o
 libperf-y += record.o
 libperf-y += srcline.o
 libperf-y += data.o
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
new file mode 100644
index 000000000000..e7b4c44ebb62
--- /dev/null
+++ b/tools/perf/util/stat-display.c
@@ -0,0 +1,1166 @@
+#include <stdio.h>
+#include <inttypes.h>
+#include <linux/time64.h>
+#include <math.h>
+#include "evlist.h"
+#include "evsel.h"
+#include "stat.h"
+#include "top.h"
+#include "thread_map.h"
+#include "cpumap.h"
+#include "string2.h"
+#include "sane_ctype.h"
+#include "cgroup.h"
+#include <math.h>
+#include <api/fs/fs.h>
+
+#define CNTR_NOT_SUPPORTED	"<not supported>"
+#define CNTR_NOT_COUNTED	"<not counted>"
+
+static bool is_duration_time(struct perf_evsel *evsel)
+{
+	return !strcmp(evsel->name, "duration_time");
+}
+
+static void print_running(struct perf_stat_config *config,
+			  u64 run, u64 ena)
+{
+	if (config->csv_output) {
+		fprintf(config->output, "%s%" PRIu64 "%s%.2f",
+					config->csv_sep,
+					run,
+					config->csv_sep,
+					ena ? 100.0 * run / ena : 100.0);
+	} else if (run != ena) {
+		fprintf(config->output, "  (%.2f%%)", 100.0 * run / ena);
+	}
+}
+
+static void print_noise_pct(struct perf_stat_config *config,
+			    double total, double avg)
+{
+	double pct = rel_stddev_stats(total, avg);
+
+	if (config->csv_output)
+		fprintf(config->output, "%s%.2f%%", config->csv_sep, pct);
+	else if (pct)
+		fprintf(config->output, "  ( +-%6.2f%% )", pct);
+}
+
+static void print_noise(struct perf_stat_config *config,
+			struct perf_evsel *evsel, double avg)
+{
+	struct perf_stat_evsel *ps;
+
+	if (config->run_count == 1)
+		return;
+
+	ps = evsel->stats;
+	print_noise_pct(config, stddev_stats(&ps->res_stats[0]), avg);
+}
+
+static void aggr_printout(struct perf_stat_config *config,
+			  struct perf_evsel *evsel, int id, int nr)
+{
+	switch (config->aggr_mode) {
+	case AGGR_CORE:
+		fprintf(config->output, "S%d-C%*d%s%*d%s",
+			cpu_map__id_to_socket(id),
+			config->csv_output ? 0 : -8,
+			cpu_map__id_to_cpu(id),
+			config->csv_sep,
+			config->csv_output ? 0 : 4,
+			nr,
+			config->csv_sep);
+		break;
+	case AGGR_SOCKET:
+		fprintf(config->output, "S%*d%s%*d%s",
+			config->csv_output ? 0 : -5,
+			id,
+			config->csv_sep,
+			config->csv_output ? 0 : 4,
+			nr,
+			config->csv_sep);
+			break;
+	case AGGR_NONE:
+		fprintf(config->output, "CPU%*d%s",
+			config->csv_output ? 0 : -4,
+			perf_evsel__cpus(evsel)->map[id], config->csv_sep);
+		break;
+	case AGGR_THREAD:
+		fprintf(config->output, "%*s-%*d%s",
+			config->csv_output ? 0 : 16,
+			thread_map__comm(evsel->threads, id),
+			config->csv_output ? 0 : -8,
+			thread_map__pid(evsel->threads, id),
+			config->csv_sep);
+		break;
+	case AGGR_GLOBAL:
+	case AGGR_UNSET:
+	default:
+		break;
+	}
+}
+
+struct outstate {
+	FILE *fh;
+	bool newline;
+	const char *prefix;
+	int  nfields;
+	int  id, nr;
+	struct perf_evsel *evsel;
+};
+
+#define METRIC_LEN  35
+
+static void new_line_std(struct perf_stat_config *config __maybe_unused,
+			 void *ctx)
+{
+	struct outstate *os = ctx;
+
+	os->newline = true;
+}
+
+static void do_new_line_std(struct perf_stat_config *config,
+			    struct outstate *os)
+{
+	fputc('\n', os->fh);
+	fputs(os->prefix, os->fh);
+	aggr_printout(config, os->evsel, os->id, os->nr);
+	if (config->aggr_mode == AGGR_NONE)
+		fprintf(os->fh, "        ");
+	fprintf(os->fh, "                                                 ");
+}
+
+static void print_metric_std(struct perf_stat_config *config,
+			     void *ctx, const char *color, const char *fmt,
+			     const char *unit, double val)
+{
+	struct outstate *os = ctx;
+	FILE *out = os->fh;
+	int n;
+	bool newline = os->newline;
+
+	os->newline = false;
+
+	if (unit == NULL || fmt == NULL) {
+		fprintf(out, "%-*s", METRIC_LEN, "");
+		return;
+	}
+
+	if (newline)
+		do_new_line_std(config, os);
+
+	n = fprintf(out, " # ");
+	if (color)
+		n += color_fprintf(out, color, fmt, val);
+	else
+		n += fprintf(out, fmt, val);
+	fprintf(out, " %-*s", METRIC_LEN - n - 1, unit);
+}
+
+static void new_line_csv(struct perf_stat_config *config, void *ctx)
+{
+	struct outstate *os = ctx;
+	int i;
+
+	fputc('\n', os->fh);
+	if (os->prefix)
+		fprintf(os->fh, "%s%s", os->prefix, config->csv_sep);
+	aggr_printout(config, os->evsel, os->id, os->nr);
+	for (i = 0; i < os->nfields; i++)
+		fputs(config->csv_sep, os->fh);
+}
+
+static void print_metric_csv(struct perf_stat_config *config __maybe_unused,
+			     void *ctx,
+			     const char *color __maybe_unused,
+			     const char *fmt, const char *unit, double val)
+{
+	struct outstate *os = ctx;
+	FILE *out = os->fh;
+	char buf[64], *vals, *ends;
+
+	if (unit == NULL || fmt == NULL) {
+		fprintf(out, "%s%s", config->csv_sep, config->csv_sep);
+		return;
+	}
+	snprintf(buf, sizeof(buf), fmt, val);
+	ends = vals = ltrim(buf);
+	while (isdigit(*ends) || *ends == '.')
+		ends++;
+	*ends = 0;
+	while (isspace(*unit))
+		unit++;
+	fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, unit);
+}
+
+/* Filter out some columns that don't work well in metrics only mode */
+
+static bool valid_only_metric(const char *unit)
+{
+	if (!unit)
+		return false;
+	if (strstr(unit, "/sec") ||
+	    strstr(unit, "hz") ||
+	    strstr(unit, "Hz") ||
+	    strstr(unit, "CPUs utilized"))
+		return false;
+	return true;
+}
+
+static const char *fixunit(char *buf, struct perf_evsel *evsel,
+			   const char *unit)
+{
+	if (!strncmp(unit, "of all", 6)) {
+		snprintf(buf, 1024, "%s %s", perf_evsel__name(evsel),
+			 unit);
+		return buf;
+	}
+	return unit;
+}
+
+static void print_metric_only(struct perf_stat_config *config,
+			      void *ctx, const char *color, const char *fmt,
+			      const char *unit, double val)
+{
+	struct outstate *os = ctx;
+	FILE *out = os->fh;
+	char buf[1024], str[1024];
+	unsigned mlen = config->metric_only_len;
+
+	if (!valid_only_metric(unit))
+		return;
+	unit = fixunit(buf, os->evsel, unit);
+	if (mlen < strlen(unit))
+		mlen = strlen(unit) + 1;
+
+	if (color)
+		mlen += strlen(color) + sizeof(PERF_COLOR_RESET) - 1;
+
+	color_snprintf(str, sizeof(str), color ?: "", fmt, val);
+	fprintf(out, "%*s ", mlen, str);
+}
+
+static void print_metric_only_csv(struct perf_stat_config *config __maybe_unused,
+				  void *ctx, const char *color __maybe_unused,
+				  const char *fmt,
+				  const char *unit, double val)
+{
+	struct outstate *os = ctx;
+	FILE *out = os->fh;
+	char buf[64], *vals, *ends;
+	char tbuf[1024];
+
+	if (!valid_only_metric(unit))
+		return;
+	unit = fixunit(tbuf, os->evsel, unit);
+	snprintf(buf, sizeof buf, fmt, val);
+	ends = vals = ltrim(buf);
+	while (isdigit(*ends) || *ends == '.')
+		ends++;
+	*ends = 0;
+	fprintf(out, "%s%s", vals, config->csv_sep);
+}
+
+static void new_line_metric(struct perf_stat_config *config __maybe_unused,
+			    void *ctx __maybe_unused)
+{
+}
+
+static void print_metric_header(struct perf_stat_config *config,
+				void *ctx, const char *color __maybe_unused,
+				const char *fmt __maybe_unused,
+				const char *unit, double val __maybe_unused)
+{
+	struct outstate *os = ctx;
+	char tbuf[1024];
+
+	if (!valid_only_metric(unit))
+		return;
+	unit = fixunit(tbuf, os->evsel, unit);
+	if (config->csv_output)
+		fprintf(os->fh, "%s%s", unit, config->csv_sep);
+	else
+		fprintf(os->fh, "%*s ", config->metric_only_len, unit);
+}
+
+static int first_shadow_cpu(struct perf_stat_config *config,
+			    struct perf_evsel *evsel, int id)
+{
+	struct perf_evlist *evlist = evsel->evlist;
+	int i;
+
+	if (!config->aggr_get_id)
+		return 0;
+
+	if (config->aggr_mode == AGGR_NONE)
+		return id;
+
+	if (config->aggr_mode == AGGR_GLOBAL)
+		return 0;
+
+	for (i = 0; i < perf_evsel__nr_cpus(evsel); i++) {
+		int cpu2 = perf_evsel__cpus(evsel)->map[i];
+
+		if (config->aggr_get_id(config, evlist->cpus, cpu2) == id)
+			return cpu2;
+	}
+	return 0;
+}
+
+static void abs_printout(struct perf_stat_config *config,
+			 int id, int nr, struct perf_evsel *evsel, double avg)
+{
+	FILE *output = config->output;
+	double sc =  evsel->scale;
+	const char *fmt;
+
+	if (config->csv_output) {
+		fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
+	} else {
+		if (config->big_num)
+			fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
+		else
+			fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
+	}
+
+	aggr_printout(config, evsel, id, nr);
+
+	fprintf(output, fmt, avg, config->csv_sep);
+
+	if (evsel->unit)
+		fprintf(output, "%-*s%s",
+			config->csv_output ? 0 : config->unit_width,
+			evsel->unit, config->csv_sep);
+
+	fprintf(output, "%-*s", config->csv_output ? 0 : 25, perf_evsel__name(evsel));
+
+	if (evsel->cgrp)
+		fprintf(output, "%s%s", config->csv_sep, evsel->cgrp->name);
+}
+
+static bool is_mixed_hw_group(struct perf_evsel *counter)
+{
+	struct perf_evlist *evlist = counter->evlist;
+	u32 pmu_type = counter->attr.type;
+	struct perf_evsel *pos;
+
+	if (counter->nr_members < 2)
+		return false;
+
+	evlist__for_each_entry(evlist, pos) {
+		/* software events can be part of any hardware group */
+		if (pos->attr.type == PERF_TYPE_SOFTWARE)
+			continue;
+		if (pmu_type == PERF_TYPE_SOFTWARE) {
+			pmu_type = pos->attr.type;
+			continue;
+		}
+		if (pmu_type != pos->attr.type)
+			return true;
+	}
+
+	return false;
+}
+
+static void printout(struct perf_stat_config *config, int id, int nr,
+		     struct perf_evsel *counter, double uval,
+		     char *prefix, u64 run, u64 ena, double noise,
+		     struct runtime_stat *st)
+{
+	struct perf_stat_output_ctx out;
+	struct outstate os = {
+		.fh = config->output,
+		.prefix = prefix ? prefix : "",
+		.id = id,
+		.nr = nr,
+		.evsel = counter,
+	};
+	print_metric_t pm = print_metric_std;
+	new_line_t nl;
+
+	if (config->metric_only) {
+		nl = new_line_metric;
+		if (config->csv_output)
+			pm = print_metric_only_csv;
+		else
+			pm = print_metric_only;
+	} else
+		nl = new_line_std;
+
+	if (config->csv_output && !config->metric_only) {
+		static int aggr_fields[] = {
+			[AGGR_GLOBAL] = 0,
+			[AGGR_THREAD] = 1,
+			[AGGR_NONE] = 1,
+			[AGGR_SOCKET] = 2,
+			[AGGR_CORE] = 2,
+		};
+
+		pm = print_metric_csv;
+		nl = new_line_csv;
+		os.nfields = 3;
+		os.nfields += aggr_fields[config->aggr_mode];
+		if (counter->cgrp)
+			os.nfields++;
+	}
+	if (run == 0 || ena == 0 || counter->counts->scaled == -1) {
+		if (config->metric_only) {
+			pm(config, &os, NULL, "", "", 0);
+			return;
+		}
+		aggr_printout(config, counter, id, nr);
+
+		fprintf(config->output, "%*s%s",
+			config->csv_output ? 0 : 18,
+			counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
+			config->csv_sep);
+
+		if (counter->supported) {
+			config->print_free_counters_hint = 1;
+			if (is_mixed_hw_group(counter))
+				config->print_mixed_hw_group_error = 1;
+		}
+
+		fprintf(config->output, "%-*s%s",
+			config->csv_output ? 0 : config->unit_width,
+			counter->unit, config->csv_sep);
+
+		fprintf(config->output, "%*s",
+			config->csv_output ? 0 : -25,
+			perf_evsel__name(counter));
+
+		if (counter->cgrp)
+			fprintf(config->output, "%s%s",
+				config->csv_sep, counter->cgrp->name);
+
+		if (!config->csv_output)
+			pm(config, &os, NULL, NULL, "", 0);
+		print_noise(config, counter, noise);
+		print_running(config, run, ena);
+		if (config->csv_output)
+			pm(config, &os, NULL, NULL, "", 0);
+		return;
+	}
+
+	if (!config->metric_only)
+		abs_printout(config, id, nr, counter, uval);
+
+	out.print_metric = pm;
+	out.new_line = nl;
+	out.ctx = &os;
+	out.force_header = false;
+
+	if (config->csv_output && !config->metric_only) {
+		print_noise(config, counter, noise);
+		print_running(config, run, ena);
+	}
+
+	perf_stat__print_shadow_stats(config, counter, uval,
+				first_shadow_cpu(config, counter, id),
+				&out, &config->metric_events, st);
+	if (!config->csv_output && !config->metric_only) {
+		print_noise(config, counter, noise);
+		print_running(config, run, ena);
+	}
+}
+
+static void aggr_update_shadow(struct perf_stat_config *config,
+			       struct perf_evlist *evlist)
+{
+	int cpu, s2, id, s;
+	u64 val;
+	struct perf_evsel *counter;
+
+	for (s = 0; s < config->aggr_map->nr; s++) {
+		id = config->aggr_map->map[s];
+		evlist__for_each_entry(evlist, counter) {
+			val = 0;
+			for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
+				s2 = config->aggr_get_id(config, evlist->cpus, cpu);
+				if (s2 != id)
+					continue;
+				val += perf_counts(counter->counts, cpu, 0)->val;
+			}
+			perf_stat__update_shadow_stats(counter, val,
+					first_shadow_cpu(config, counter, id),
+					&rt_stat);
+		}
+	}
+}
+
+static void uniquify_event_name(struct perf_evsel *counter)
+{
+	char *new_name;
+	char *config;
+
+	if (counter->uniquified_name ||
+	    !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
+					   strlen(counter->pmu_name)))
+		return;
+
+	config = strchr(counter->name, '/');
+	if (config) {
+		if (asprintf(&new_name,
+			     "%s%s", counter->pmu_name, config) > 0) {
+			free(counter->name);
+			counter->name = new_name;
+		}
+	} else {
+		if (asprintf(&new_name,
+			     "%s [%s]", counter->name, counter->pmu_name) > 0) {
+			free(counter->name);
+			counter->name = new_name;
+		}
+	}
+
+	counter->uniquified_name = true;
+}
+
+static void collect_all_aliases(struct perf_stat_config *config, struct perf_evsel *counter,
+			    void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data,
+				       bool first),
+			    void *data)
+{
+	struct perf_evlist *evlist = counter->evlist;
+	struct perf_evsel *alias;
+
+	alias = list_prepare_entry(counter, &(evlist->entries), node);
+	list_for_each_entry_continue (alias, &evlist->entries, node) {
+		if (strcmp(perf_evsel__name(alias), perf_evsel__name(counter)) ||
+		    alias->scale != counter->scale ||
+		    alias->cgrp != counter->cgrp ||
+		    strcmp(alias->unit, counter->unit) ||
+		    perf_evsel__is_clock(alias) != perf_evsel__is_clock(counter))
+			break;
+		alias->merged_stat = true;
+		cb(config, alias, data, false);
+	}
+}
+
+static bool collect_data(struct perf_stat_config *config, struct perf_evsel *counter,
+			    void (*cb)(struct perf_stat_config *config, struct perf_evsel *counter, void *data,
+				       bool first),
+			    void *data)
+{
+	if (counter->merged_stat)
+		return false;
+	cb(config, counter, data, true);
+	if (config->no_merge)
+		uniquify_event_name(counter);
+	else if (counter->auto_merge_stats)
+		collect_all_aliases(config, counter, cb, data);
+	return true;
+}
+
+struct aggr_data {
+	u64 ena, run, val;
+	int id;
+	int nr;
+	int cpu;
+};
+
+static void aggr_cb(struct perf_stat_config *config,
+		    struct perf_evsel *counter, void *data, bool first)
+{
+	struct aggr_data *ad = data;
+	int cpu, s2;
+
+	for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
+		struct perf_counts_values *counts;
+
+		s2 = config->aggr_get_id(config, perf_evsel__cpus(counter), cpu);
+		if (s2 != ad->id)
+			continue;
+		if (first)
+			ad->nr++;
+		counts = perf_counts(counter->counts, cpu, 0);
+		/*
+		 * When any result is bad, make them all to give
+		 * consistent output in interval mode.
+		 */
+		if (counts->ena == 0 || counts->run == 0 ||
+		    counter->counts->scaled == -1) {
+			ad->ena = 0;
+			ad->run = 0;
+			break;
+		}
+		ad->val += counts->val;
+		ad->ena += counts->ena;
+		ad->run += counts->run;
+	}
+}
+
+static void print_aggr(struct perf_stat_config *config,
+		       struct perf_evlist *evlist,
+		       char *prefix)
+{
+	bool metric_only = config->metric_only;
+	FILE *output = config->output;
+	struct perf_evsel *counter;
+	int s, id, nr;
+	double uval;
+	u64 ena, run, val;
+	bool first;
+
+	if (!(config->aggr_map || config->aggr_get_id))
+		return;
+
+	aggr_update_shadow(config, evlist);
+
+	/*
+	 * With metric_only everything is on a single line.
+	 * Without each counter has its own line.
+	 */
+	for (s = 0; s < config->aggr_map->nr; s++) {
+		struct aggr_data ad;
+		if (prefix && metric_only)
+			fprintf(output, "%s", prefix);
+
+		ad.id = id = config->aggr_map->map[s];
+		first = true;
+		evlist__for_each_entry(evlist, counter) {
+			if (is_duration_time(counter))
+				continue;
+
+			ad.val = ad.ena = ad.run = 0;
+			ad.nr = 0;
+			if (!collect_data(config, counter, aggr_cb, &ad))
+				continue;
+			nr = ad.nr;
+			ena = ad.ena;
+			run = ad.run;
+			val = ad.val;
+			if (first && metric_only) {
+				first = false;
+				aggr_printout(config, counter, id, nr);
+			}
+			if (prefix && !metric_only)
+				fprintf(output, "%s", prefix);
+
+			uval = val * counter->scale;
+			printout(config, id, nr, counter, uval, prefix,
+				 run, ena, 1.0, &rt_stat);
+			if (!metric_only)
+				fputc('\n', output);
+		}
+		if (metric_only)
+			fputc('\n', output);
+	}
+}
+
+static int cmp_val(const void *a, const void *b)
+{
+	return ((struct perf_aggr_thread_value *)b)->val -
+		((struct perf_aggr_thread_value *)a)->val;
+}
+
+static struct perf_aggr_thread_value *sort_aggr_thread(
+					struct perf_evsel *counter,
+					int nthreads, int ncpus,
+					int *ret,
+					struct target *_target)
+{
+	int cpu, thread, i = 0;
+	double uval;
+	struct perf_aggr_thread_value *buf;
+
+	buf = calloc(nthreads, sizeof(struct perf_aggr_thread_value));
+	if (!buf)
+		return NULL;
+
+	for (thread = 0; thread < nthreads; thread++) {
+		u64 ena = 0, run = 0, val = 0;
+
+		for (cpu = 0; cpu < ncpus; cpu++) {
+			val += perf_counts(counter->counts, cpu, thread)->val;
+			ena += perf_counts(counter->counts, cpu, thread)->ena;
+			run += perf_counts(counter->counts, cpu, thread)->run;
+		}
+
+		uval = val * counter->scale;
+
+		/*
+		 * Skip value 0 when enabling --per-thread globally,
+		 * otherwise too many 0 output.
+		 */
+		if (uval == 0.0 && target__has_per_thread(_target))
+			continue;
+
+		buf[i].counter = counter;
+		buf[i].id = thread;
+		buf[i].uval = uval;
+		buf[i].val = val;
+		buf[i].run = run;
+		buf[i].ena = ena;
+		i++;
+	}
+
+	qsort(buf, i, sizeof(struct perf_aggr_thread_value), cmp_val);
+
+	if (ret)
+		*ret = i;
+
+	return buf;
+}
+
+static void print_aggr_thread(struct perf_stat_config *config,
+			      struct target *_target,
+			      struct perf_evsel *counter, char *prefix)
+{
+	FILE *output = config->output;
+	int nthreads = thread_map__nr(counter->threads);
+	int ncpus = cpu_map__nr(counter->cpus);
+	int thread, sorted_threads, id;
+	struct perf_aggr_thread_value *buf;
+
+	buf = sort_aggr_thread(counter, nthreads, ncpus, &sorted_threads, _target);
+	if (!buf) {
+		perror("cannot sort aggr thread");
+		return;
+	}
+
+	for (thread = 0; thread < sorted_threads; thread++) {
+		if (prefix)
+			fprintf(output, "%s", prefix);
+
+		id = buf[thread].id;
+		if (config->stats)
+			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
+				 prefix, buf[thread].run, buf[thread].ena, 1.0,
+				 &config->stats[id]);
+		else
+			printout(config, id, 0, buf[thread].counter, buf[thread].uval,
+				 prefix, buf[thread].run, buf[thread].ena, 1.0,
+				 &rt_stat);
+		fputc('\n', output);
+	}
+
+	free(buf);
+}
+
+struct caggr_data {
+	double avg, avg_enabled, avg_running;
+};
+
+static void counter_aggr_cb(struct perf_stat_config *config __maybe_unused,
+			    struct perf_evsel *counter, void *data,
+			    bool first __maybe_unused)
+{
+	struct caggr_data *cd = data;
+	struct perf_stat_evsel *ps = counter->stats;
+
+	cd->avg += avg_stats(&ps->res_stats[0]);
+	cd->avg_enabled += avg_stats(&ps->res_stats[1]);
+	cd->avg_running += avg_stats(&ps->res_stats[2]);
+}
+
+/*
+ * Print out the results of a single counter:
+ * aggregated counts in system-wide mode
+ */
+static void print_counter_aggr(struct perf_stat_config *config,
+			       struct perf_evsel *counter, char *prefix)
+{
+	bool metric_only = config->metric_only;
+	FILE *output = config->output;
+	double uval;
+	struct caggr_data cd = { .avg = 0.0 };
+
+	if (!collect_data(config, counter, counter_aggr_cb, &cd))
+		return;
+
+	if (prefix && !metric_only)
+		fprintf(output, "%s", prefix);
+
+	uval = cd.avg * counter->scale;
+	printout(config, -1, 0, counter, uval, prefix, cd.avg_running, cd.avg_enabled,
+		 cd.avg, &rt_stat);
+	if (!metric_only)
+		fprintf(output, "\n");
+}
+
+static void counter_cb(struct perf_stat_config *config __maybe_unused,
+		       struct perf_evsel *counter, void *data,
+		       bool first __maybe_unused)
+{
+	struct aggr_data *ad = data;
+
+	ad->val += perf_counts(counter->counts, ad->cpu, 0)->val;
+	ad->ena += perf_counts(counter->counts, ad->cpu, 0)->ena;
+	ad->run += perf_counts(counter->counts, ad->cpu, 0)->run;
+}
+
+/*
+ * Print out the results of a single counter:
+ * does not use aggregated count in system-wide
+ */
+static void print_counter(struct perf_stat_config *config,
+			  struct perf_evsel *counter, char *prefix)
+{
+	FILE *output = config->output;
+	u64 ena, run, val;
+	double uval;
+	int cpu;
+
+	for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
+		struct aggr_data ad = { .cpu = cpu };
+
+		if (!collect_data(config, counter, counter_cb, &ad))
+			return;
+		val = ad.val;
+		ena = ad.ena;
+		run = ad.run;
+
+		if (prefix)
+			fprintf(output, "%s", prefix);
+
+		uval = val * counter->scale;
+		printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
+			 &rt_stat);
+
+		fputc('\n', output);
+	}
+}
+
+static void print_no_aggr_metric(struct perf_stat_config *config,
+				 struct perf_evlist *evlist,
+				 char *prefix)
+{
+	int cpu;
+	int nrcpus = 0;
+	struct perf_evsel *counter;
+	u64 ena, run, val;
+	double uval;
+
+	nrcpus = evlist->cpus->nr;
+	for (cpu = 0; cpu < nrcpus; cpu++) {
+		bool first = true;
+
+		if (prefix)
+			fputs(prefix, config->output);
+		evlist__for_each_entry(evlist, counter) {
+			if (is_duration_time(counter))
+				continue;
+			if (first) {
+				aggr_printout(config, counter, cpu, 0);
+				first = false;
+			}
+			val = perf_counts(counter->counts, cpu, 0)->val;
+			ena = perf_counts(counter->counts, cpu, 0)->ena;
+			run = perf_counts(counter->counts, cpu, 0)->run;
+
+			uval = val * counter->scale;
+			printout(config, cpu, 0, counter, uval, prefix, run, ena, 1.0,
+				 &rt_stat);
+		}
+		fputc('\n', config->output);
+	}
+}
+
+static int aggr_header_lens[] = {
+	[AGGR_CORE] = 18,
+	[AGGR_SOCKET] = 12,
+	[AGGR_NONE] = 6,
+	[AGGR_THREAD] = 24,
+	[AGGR_GLOBAL] = 0,
+};
+
+static const char *aggr_header_csv[] = {
+	[AGGR_CORE] 	= 	"core,cpus,",
+	[AGGR_SOCKET] 	= 	"socket,cpus",
+	[AGGR_NONE] 	= 	"cpu,",
+	[AGGR_THREAD] 	= 	"comm-pid,",
+	[AGGR_GLOBAL] 	=	""
+};
+
+static void print_metric_headers(struct perf_stat_config *config,
+				 struct perf_evlist *evlist,
+				 const char *prefix, bool no_indent)
+{
+	struct perf_stat_output_ctx out;
+	struct perf_evsel *counter;
+	struct outstate os = {
+		.fh = config->output
+	};
+
+	if (prefix)
+		fprintf(config->output, "%s", prefix);
+
+	if (!config->csv_output && !no_indent)
+		fprintf(config->output, "%*s",
+			aggr_header_lens[config->aggr_mode], "");
+	if (config->csv_output) {
+		if (config->interval)
+			fputs("time,", config->output);
+		fputs(aggr_header_csv[config->aggr_mode], config->output);
+	}
+
+	/* Print metrics headers only */
+	evlist__for_each_entry(evlist, counter) {
+		if (is_duration_time(counter))
+			continue;
+		os.evsel = counter;
+		out.ctx = &os;
+		out.print_metric = print_metric_header;
+		out.new_line = new_line_metric;
+		out.force_header = true;
+		os.evsel = counter;
+		perf_stat__print_shadow_stats(config, counter, 0,
+					      0,
+					      &out,
+					      &config->metric_events,
+					      &rt_stat);
+	}
+	fputc('\n', config->output);
+}
+
+static void print_interval(struct perf_stat_config *config,
+			   struct perf_evlist *evlist,
+			   char *prefix, struct timespec *ts)
+{
+	bool metric_only = config->metric_only;
+	unsigned int unit_width = config->unit_width;
+	FILE *output = config->output;
+	static int num_print_interval;
+
+	if (config->interval_clear)
+		puts(CONSOLE_CLEAR);
+
+	sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, config->csv_sep);
+
+	if ((num_print_interval == 0 && !config->csv_output) || config->interval_clear) {
+		switch (config->aggr_mode) {
+		case AGGR_SOCKET:
+			fprintf(output, "#           time socket cpus");
+			if (!metric_only)
+				fprintf(output, "             counts %*s events\n", unit_width, "unit");
+			break;
+		case AGGR_CORE:
+			fprintf(output, "#           time core         cpus");
+			if (!metric_only)
+				fprintf(output, "             counts %*s events\n", unit_width, "unit");
+			break;
+		case AGGR_NONE:
+			fprintf(output, "#           time CPU    ");
+			if (!metric_only)
+				fprintf(output, "                counts %*s events\n", unit_width, "unit");
+			break;
+		case AGGR_THREAD:
+			fprintf(output, "#           time             comm-pid");
+			if (!metric_only)
+				fprintf(output, "                  counts %*s events\n", unit_width, "unit");
+			break;
+		case AGGR_GLOBAL:
+		default:
+			fprintf(output, "#           time");
+			if (!metric_only)
+				fprintf(output, "             counts %*s events\n", unit_width, "unit");
+		case AGGR_UNSET:
+			break;
+		}
+	}
+
+	if ((num_print_interval == 0 || config->interval_clear) && metric_only)
+		print_metric_headers(config, evlist, " ", true);
+	if (++num_print_interval == 25)
+		num_print_interval = 0;
+}
+
+static void print_header(struct perf_stat_config *config,
+			 struct target *_target,
+			 int argc, const char **argv)
+{
+	FILE *output = config->output;
+	int i;
+
+	fflush(stdout);
+
+	if (!config->csv_output) {
+		fprintf(output, "\n");
+		fprintf(output, " Performance counter stats for ");
+		if (_target->system_wide)
+			fprintf(output, "\'system wide");
+		else if (_target->cpu_list)
+			fprintf(output, "\'CPU(s) %s", _target->cpu_list);
+		else if (!target__has_task(_target)) {
+			fprintf(output, "\'%s", argv ? argv[0] : "pipe");
+			for (i = 1; argv && (i < argc); i++)
+				fprintf(output, " %s", argv[i]);
+		} else if (_target->pid)
+			fprintf(output, "process id \'%s", _target->pid);
+		else
+			fprintf(output, "thread id \'%s", _target->tid);
+
+		fprintf(output, "\'");
+		if (config->run_count > 1)
+			fprintf(output, " (%d runs)", config->run_count);
+		fprintf(output, ":\n\n");
+	}
+}
+
+static int get_precision(double num)
+{
+	if (num > 1)
+		return 0;
+
+	return lround(ceil(-log10(num)));
+}
+
+static void print_table(struct perf_stat_config *config,
+			FILE *output, int precision, double avg)
+{
+	char tmp[64];
+	int idx, indent = 0;
+
+	scnprintf(tmp, 64, " %17.*f", precision, avg);
+	while (tmp[indent] == ' ')
+		indent++;
+
+	fprintf(output, "%*s# Table of individual measurements:\n", indent, "");
+
+	for (idx = 0; idx < config->run_count; idx++) {
+		double run = (double) config->walltime_run[idx] / NSEC_PER_SEC;
+		int h, n = 1 + abs((int) (100.0 * (run - avg)/run) / 5);
+
+		fprintf(output, " %17.*f (%+.*f) ",
+			precision, run, precision, run - avg);
+
+		for (h = 0; h < n; h++)
+			fprintf(output, "#");
+
+		fprintf(output, "\n");
+	}
+
+	fprintf(output, "\n%*s# Final result:\n", indent, "");
+}
+
+static double timeval2double(struct timeval *t)
+{
+	return t->tv_sec + (double) t->tv_usec/USEC_PER_SEC;
+}
+
+static void print_footer(struct perf_stat_config *config)
+{
+	double avg = avg_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
+	FILE *output = config->output;
+	int n;
+
+	if (!config->null_run)
+		fprintf(output, "\n");
+
+	if (config->run_count == 1) {
+		fprintf(output, " %17.9f seconds time elapsed", avg);
+
+		if (config->ru_display) {
+			double ru_utime = timeval2double(&config->ru_data.ru_utime);
+			double ru_stime = timeval2double(&config->ru_data.ru_stime);
+
+			fprintf(output, "\n\n");
+			fprintf(output, " %17.9f seconds user\n", ru_utime);
+			fprintf(output, " %17.9f seconds sys\n", ru_stime);
+		}
+	} else {
+		double sd = stddev_stats(config->walltime_nsecs_stats) / NSEC_PER_SEC;
+		/*
+		 * Display at most 2 more significant
+		 * digits than the stddev inaccuracy.
+		 */
+		int precision = get_precision(sd) + 2;
+
+		if (config->walltime_run_table)
+			print_table(config, output, precision, avg);
+
+		fprintf(output, " %17.*f +- %.*f seconds time elapsed",
+			precision, avg, precision, sd);
+
+		print_noise_pct(config, sd, avg);
+	}
+	fprintf(output, "\n\n");
+
+	if (config->print_free_counters_hint &&
+	    sysctl__read_int("kernel/nmi_watchdog", &n) >= 0 &&
+	    n > 0)
+		fprintf(output,
+"Some events weren't counted. Try disabling the NMI watchdog:\n"
+"	echo 0 > /proc/sys/kernel/nmi_watchdog\n"
+"	perf stat ...\n"
+"	echo 1 > /proc/sys/kernel/nmi_watchdog\n");
+
+	if (config->print_mixed_hw_group_error)
+		fprintf(output,
+			"The events in group usually have to be from "
+			"the same PMU. Try reorganizing the group.\n");
+}
+
+void
+perf_evlist__print_counters(struct perf_evlist *evlist,
+			    struct perf_stat_config *config,
+			    struct target *_target,
+			    struct timespec *ts,
+			    int argc, const char **argv)
+{
+	bool metric_only = config->metric_only;
+	int interval = config->interval;
+	struct perf_evsel *counter;
+	char buf[64], *prefix = NULL;
+
+	if (interval)
+		print_interval(config, evlist, prefix = buf, ts);
+	else
+		print_header(config, _target, argc, argv);
+
+	if (metric_only) {
+		static int num_print_iv;
+
+		if (num_print_iv == 0 && !interval)
+			print_metric_headers(config, evlist, prefix, false);
+		if (num_print_iv++ == 25)
+			num_print_iv = 0;
+		if (config->aggr_mode == AGGR_GLOBAL && prefix)
+			fprintf(config->output, "%s", prefix);
+	}
+
+	switch (config->aggr_mode) {
+	case AGGR_CORE:
+	case AGGR_SOCKET:
+		print_aggr(config, evlist, prefix);
+		break;
+	case AGGR_THREAD:
+		evlist__for_each_entry(evlist, counter) {
+			if (is_duration_time(counter))
+				continue;
+			print_aggr_thread(config, _target, counter, prefix);
+		}
+		break;
+	case AGGR_GLOBAL:
+		evlist__for_each_entry(evlist, counter) {
+			if (is_duration_time(counter))
+				continue;
+			print_counter_aggr(config, counter, prefix);
+		}
+		if (metric_only)
+			fputc('\n', config->output);
+		break;
+	case AGGR_NONE:
+		if (metric_only)
+			print_no_aggr_metric(config, evlist, prefix);
+		else {
+			evlist__for_each_entry(evlist, counter) {
+				if (is_duration_time(counter))
+					continue;
+				print_counter(config, counter, prefix);
+			}
+		}
+		break;
+	case AGGR_UNSET:
+	default:
+		break;
+	}
+
+	if (!interval && !config->csv_output)
+		print_footer(config);
+
+	fflush(config->output);
+}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 8d3354e21e19..3a13a6dc5a62 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -215,4 +215,10 @@ int perf_stat_synthesize_config(struct perf_stat_config *config,
 				struct perf_evlist *evlist,
 				perf_event__handler_t process,
 				bool attrs);
+void
+perf_evlist__print_counters(struct perf_evlist *evlist,
+			    struct perf_stat_config *config,
+			    struct target *_target,
+			    struct timespec *ts,
+			    int argc, const char **argv);
 #endif
-- 
2.17.1

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