summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/stat-display.c
blob: 4688e39de52afd4efdeb5a2782e52e0be300431b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <linux/string.h>
#include <linux/time64.h>
#include <math.h>
#include "color.h"
#include "counts.h"
#include "evlist.h"
#include "evsel.h"
#include "stat.h"
#include "top.h"
#include "thread_map.h"
#include "cpumap.h"
#include "string2.h"
#include <linux/ctype.h>
#include "cgroup.h"
#include <api/fs/fs.h>
#include "util.h"

#define CNTR_NOT_SUPPORTED	"<not supported>"
#define CNTR_NOT_COUNTED	"<not counted>"

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 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 print_cgroup(struct perf_stat_config *config, struct evsel *evsel)
{
	if (nr_cgroups) {
		const char *cgrp_name = evsel->cgrp ? evsel->cgrp->name  : "";
		fprintf(config->output, "%s%s", config->csv_sep, cgrp_name);
	}
}


static void aggr_printout(struct perf_stat_config *config,
			  struct evsel *evsel, int id, int nr)
{
	switch (config->aggr_mode) {
	case AGGR_CORE:
		fprintf(config->output, "S%d-D%d-C%*d%s%*d%s",
			cpu_map__id_to_socket(id),
			cpu_map__id_to_die(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_DIE:
		fprintf(config->output, "S%d-D%*d%s%*d%s",
			cpu_map__id_to_socket(id << 16),
			config->csv_output ? 0 : -8,
			cpu_map__id_to_die(id << 16),
			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_NODE:
		fprintf(config->output, "N%*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:
		if (evsel->percore && !config->percore_show_thread) {
			fprintf(config->output, "S%d-D%d-C%*d%s",
				cpu_map__id_to_socket(id),
				cpu_map__id_to_die(id),
				config->csv_output ? 0 : -3,
				cpu_map__id_to_cpu(id), config->csv_sep);
		} else if (id > -1) {
			fprintf(config->output, "CPU%*d%s",
				config->csv_output ? 0 : -7,
				evsel__cpus(evsel)->map[id],
				config->csv_sep);
		}
		break;
	case AGGR_THREAD:
		fprintf(config->output, "%*s-%*d%s",
			config->csv_output ? 0 : 16,
			perf_thread_map__comm(evsel->core.threads, id),
			config->csv_output ? 0 : -8,
			perf_thread_map__pid(evsel->core.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 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", os->prefix);
	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 = skip_spaces(buf);
	while (isdigit(*ends) || *ends == '.')
		ends++;
	*ends = 0;
	fprintf(out, "%s%s%s%s", config->csv_sep, vals, config->csv_sep, skip_spaces(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, "CPUs utilized"))
		return false;
	return true;
}

static const char *fixunit(char *buf, struct evsel *evsel,
			   const char *unit)
{
	if (!strncmp(unit, "of all", 6)) {
		snprintf(buf, 1024, "%s %s", 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 = skip_spaces(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 evsel *evsel, int id)
{
	struct evlist *evlist = evsel->evlist;
	int i;

	if (config->aggr_mode == AGGR_NONE)
		return id;

	if (!config->aggr_get_id)
		return 0;

	for (i = 0; i < evsel__nr_cpus(evsel); i++) {
		int cpu2 = evsel__cpus(evsel)->map[i];

		if (config->aggr_get_id(config, evlist->core.cpus, cpu2) == id)
			return cpu2;
	}
	return 0;
}

static void abs_printout(struct perf_stat_config *config,
			 int id, int nr, struct 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, evsel__name(evsel));

	print_cgroup(config, evsel);
}

static bool is_mixed_hw_group(struct evsel *counter)
{
	struct evlist *evlist = counter->evlist;
	u32 pmu_type = counter->core.attr.type;
	struct evsel *pos;

	if (counter->core.nr_members < 2)
		return false;

	evlist__for_each_entry(evlist, pos) {
		/* software events can be part of any hardware group */
		if (pos->core.attr.type == PERF_TYPE_SOFTWARE)
			continue;
		if (pmu_type == PERF_TYPE_SOFTWARE) {
			pmu_type = pos->core.attr.type;
			continue;
		}
		if (pmu_type != pos->core.attr.type)
			return true;
	}

	return false;
}

static void printout(struct perf_stat_config *config, int id, int nr,
		     struct 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_DIE] = 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, evsel__name(counter));

		print_cgroup(config, counter);

		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 evlist *evlist)
{
	int cpu, s2, id, s;
	u64 val;
	struct 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 < evsel__nr_cpus(counter); cpu++) {
				s2 = config->aggr_get_id(config, evlist->core.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 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 evsel *counter,
			    void (*cb)(struct perf_stat_config *config, struct evsel *counter, void *data,
				       bool first),
			    void *data)
{
	struct evlist *evlist = counter->evlist;
	struct evsel *alias;

	alias = list_prepare_entry(counter, &(evlist->core.entries), core.node);
	list_for_each_entry_continue (alias, &evlist->core.entries, core.node) {
		/* Merge events with the same name, etc. but on different PMUs. */
		if (!strcmp(evsel__name(alias), evsel__name(counter)) &&
			alias->scale == counter->scale &&
			alias->cgrp == counter->cgrp &&
			!strcmp(alias->unit, counter->unit) &&
			evsel__is_clock(alias) == evsel__is_clock(counter) &&
			strcmp(alias->pmu_name, counter->pmu_name)) {
			alias->merged_stat = true;
			cb(config, alias, data, false);
		}
	}
}

static bool collect_data(struct perf_stat_config *config, struct evsel *counter,
			    void (*cb)(struct perf_stat_config *config, struct 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 evsel *counter, void *data, bool first)
{
	struct aggr_data *ad = data;
	int cpu, s2;

	for (cpu = 0; cpu < evsel__nr_cpus(counter); cpu++) {
		struct perf_counts_values *counts;

		s2 = config->aggr_get_id(config, 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_counter_aggrdata(struct perf_stat_config *config,
				   struct evsel *counter, int s,
				   char *prefix, bool metric_only,
				   bool *first, int cpu)
{
	struct aggr_data ad;
	FILE *output = config->output;
	u64 ena, run, val;
	int id, nr;
	double uval;

	ad.id = id = config->aggr_map->map[s];
	ad.val = ad.ena = ad.run = 0;
	ad.nr = 0;
	if (!collect_data(config, counter, aggr_cb, &ad))
		return;

	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, cpu != -1 ? cpu : id, nr, counter, uval, prefix,
		 run, ena, 1.0, &rt_stat);
	if (!metric_only)
		fputc('\n', output);
}

static void print_aggr(struct perf_stat_config *config,
		       struct evlist *evlist,
		       char *prefix)
{
	bool metric_only = config->metric_only;
	FILE *output = config->output;
	struct evsel *counter;
	int s;
	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++) {
		if (prefix && metric_only)
			fprintf(output, "%s", prefix);

		first = true;
		evlist__for_each_entry(evlist, counter) {
			print_counter_aggrdata(config, counter, s,
					       prefix, metric_only,
					       &first, -1);
		}
		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 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 evsel *counter, char *prefix)
{
	FILE *output = config->output;
	int nthreads = perf_thread_map__nr(counter->core.threads);
	int ncpus = perf_cpu_map__nr(counter->core.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 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 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 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 evsel *counter, char *prefix)
{
	FILE *output = config->output;
	u64 ena, run, val;
	double uval;
	int cpu;

	for (cpu = 0; cpu < 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 evlist *evlist,
				 char *prefix)
{
	int cpu;
	int nrcpus = 0;
	struct evsel *counter;
	u64 ena, run, val;
	double uval;

	nrcpus = evlist->core.cpus->nr;
	for (cpu = 0; cpu < nrcpus; cpu++) {
		bool first = true;

		if (prefix)
			fputs(prefix, config->output);
		evlist__for_each_entry(evlist, counter) {
			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] = 24,
	[AGGR_DIE] = 18,
	[AGGR_SOCKET] = 12,
	[AGGR_NONE] = 6,
	[AGGR_THREAD] = 24,
	[AGGR_GLOBAL] = 0,
};

static const char *aggr_header_csv[] = {
	[AGGR_CORE] 	= 	"core,cpus,",
	[AGGR_DIE] 	= 	"die,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 evlist *evlist,
				 const char *prefix, bool no_indent)
{
	struct perf_stat_output_ctx out;
	struct 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) {
		os.evsel = counter;
		out.ctx = &os;
		out.print_metric = print_metric_header;
		out.new_line = new_line_metric;
		out.force_header = true;
		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 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_NODE:
			fprintf(output, "#           time node   cpus");
			if (!metric_only)
				fprintf(output, "             counts %*s events\n", unit_width, "unit");
			break;
		case AGGR_SOCKET:
			fprintf(output, "#           time socket cpus");
			if (!metric_only)
				fprintf(output, "             counts %*s events\n", unit_width, "unit");
			break;
		case AGGR_DIE:
			fprintf(output, "#           time die          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;

	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__nmi_watchdog_enabled())
		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 print_percore_thread(struct perf_stat_config *config,
				 struct evsel *counter, char *prefix)
{
	int s, s2, id;
	bool first = true;

	for (int i = 0; i < evsel__nr_cpus(counter); i++) {
		s2 = config->aggr_get_id(config, evsel__cpus(counter), i);
		for (s = 0; s < config->aggr_map->nr; s++) {
			id = config->aggr_map->map[s];
			if (s2 == id)
				break;
		}

		print_counter_aggrdata(config, counter, s,
				       prefix, false,
				       &first, i);
	}
}

static void print_percore(struct perf_stat_config *config,
			  struct evsel *counter, char *prefix)
{
	bool metric_only = config->metric_only;
	FILE *output = config->output;
	int s;
	bool first = true;

	if (!config->aggr_map || !config->aggr_get_id)
		return;

	if (config->percore_show_thread)
		return print_percore_thread(config, counter, prefix);

	for (s = 0; s < config->aggr_map->nr; s++) {
		if (prefix && metric_only)
			fprintf(output, "%s", prefix);

		print_counter_aggrdata(config, counter, s,
				       prefix, metric_only,
				       &first, -1);
	}

	if (metric_only)
		fputc('\n', output);
}

void
perf_evlist__print_counters(struct 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 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_DIE:
	case AGGR_SOCKET:
	case AGGR_NODE:
		print_aggr(config, evlist, prefix);
		break;
	case AGGR_THREAD:
		evlist__for_each_entry(evlist, counter) {
			print_aggr_thread(config, _target, counter, prefix);
		}
		break;
	case AGGR_GLOBAL:
		evlist__for_each_entry(evlist, counter) {
			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 (counter->percore)
					print_percore(config, counter, prefix);
				else
					print_counter(config, counter, prefix);
			}
		}
		break;
	case AGGR_UNSET:
	default:
		break;
	}

	if (!interval && !config->csv_output)
		print_footer(config);

	fflush(config->output);
}