Loading...
1// SPDX-License-Identifier: GPL-2.0
2#include <math.h>
3#include <stdio.h>
4#include "evsel.h"
5#include "stat.h"
6#include "color.h"
7#include "debug.h"
8#include "pmu.h"
9#include "rblist.h"
10#include "evlist.h"
11#include "expr.h"
12#include "metricgroup.h"
13#include "cgroup.h"
14#include "units.h"
15#include <linux/zalloc.h>
16#include "iostat.h"
17#include "util/hashmap.h"
18
19struct stats walltime_nsecs_stats;
20struct rusage_stats ru_stats;
21
22enum {
23 CTX_BIT_USER = 1 << 0,
24 CTX_BIT_KERNEL = 1 << 1,
25 CTX_BIT_HV = 1 << 2,
26 CTX_BIT_HOST = 1 << 3,
27 CTX_BIT_IDLE = 1 << 4,
28 CTX_BIT_MAX = 1 << 5,
29};
30
31enum stat_type {
32 STAT_NONE = 0,
33 STAT_NSECS,
34 STAT_CYCLES,
35 STAT_INSTRUCTIONS,
36 STAT_STALLED_CYCLES_FRONT,
37 STAT_STALLED_CYCLES_BACK,
38 STAT_BRANCHES,
39 STAT_BRANCH_MISS,
40 STAT_CACHE_REFS,
41 STAT_CACHE_MISSES,
42 STAT_L1_DCACHE,
43 STAT_L1_ICACHE,
44 STAT_LL_CACHE,
45 STAT_ITLB_CACHE,
46 STAT_DTLB_CACHE,
47 STAT_L1D_MISS,
48 STAT_L1I_MISS,
49 STAT_LL_MISS,
50 STAT_DTLB_MISS,
51 STAT_ITLB_MISS,
52 STAT_MAX
53};
54
55static int evsel_context(const struct evsel *evsel)
56{
57 int ctx = 0;
58
59 if (evsel->core.attr.exclude_kernel)
60 ctx |= CTX_BIT_KERNEL;
61 if (evsel->core.attr.exclude_user)
62 ctx |= CTX_BIT_USER;
63 if (evsel->core.attr.exclude_hv)
64 ctx |= CTX_BIT_HV;
65 if (evsel->core.attr.exclude_host)
66 ctx |= CTX_BIT_HOST;
67 if (evsel->core.attr.exclude_idle)
68 ctx |= CTX_BIT_IDLE;
69
70 return ctx;
71}
72
73void perf_stat__reset_shadow_stats(void)
74{
75 memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
76 memset(&ru_stats, 0, sizeof(ru_stats));
77}
78
79static enum stat_type evsel__stat_type(const struct evsel *evsel)
80{
81 /* Fake perf_hw_cache_op_id values for use with evsel__match. */
82 u64 PERF_COUNT_hw_cache_l1d_miss = PERF_COUNT_HW_CACHE_L1D |
83 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
84 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
85 u64 PERF_COUNT_hw_cache_l1i_miss = PERF_COUNT_HW_CACHE_L1I |
86 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
87 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
88 u64 PERF_COUNT_hw_cache_ll_miss = PERF_COUNT_HW_CACHE_LL |
89 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
90 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
91 u64 PERF_COUNT_hw_cache_dtlb_miss = PERF_COUNT_HW_CACHE_DTLB |
92 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
93 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
94 u64 PERF_COUNT_hw_cache_itlb_miss = PERF_COUNT_HW_CACHE_ITLB |
95 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
96 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16);
97
98 if (evsel__is_clock(evsel))
99 return STAT_NSECS;
100 else if (evsel__match(evsel, HARDWARE, HW_CPU_CYCLES))
101 return STAT_CYCLES;
102 else if (evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS))
103 return STAT_INSTRUCTIONS;
104 else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
105 return STAT_STALLED_CYCLES_FRONT;
106 else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND))
107 return STAT_STALLED_CYCLES_BACK;
108 else if (evsel__match(evsel, HARDWARE, HW_BRANCH_INSTRUCTIONS))
109 return STAT_BRANCHES;
110 else if (evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES))
111 return STAT_BRANCH_MISS;
112 else if (evsel__match(evsel, HARDWARE, HW_CACHE_REFERENCES))
113 return STAT_CACHE_REFS;
114 else if (evsel__match(evsel, HARDWARE, HW_CACHE_MISSES))
115 return STAT_CACHE_MISSES;
116 else if (evsel__match(evsel, HW_CACHE, HW_CACHE_L1D))
117 return STAT_L1_DCACHE;
118 else if (evsel__match(evsel, HW_CACHE, HW_CACHE_L1I))
119 return STAT_L1_ICACHE;
120 else if (evsel__match(evsel, HW_CACHE, HW_CACHE_LL))
121 return STAT_LL_CACHE;
122 else if (evsel__match(evsel, HW_CACHE, HW_CACHE_DTLB))
123 return STAT_DTLB_CACHE;
124 else if (evsel__match(evsel, HW_CACHE, HW_CACHE_ITLB))
125 return STAT_ITLB_CACHE;
126 else if (evsel__match(evsel, HW_CACHE, hw_cache_l1d_miss))
127 return STAT_L1D_MISS;
128 else if (evsel__match(evsel, HW_CACHE, hw_cache_l1i_miss))
129 return STAT_L1I_MISS;
130 else if (evsel__match(evsel, HW_CACHE, hw_cache_ll_miss))
131 return STAT_LL_MISS;
132 else if (evsel__match(evsel, HW_CACHE, hw_cache_dtlb_miss))
133 return STAT_DTLB_MISS;
134 else if (evsel__match(evsel, HW_CACHE, hw_cache_itlb_miss))
135 return STAT_ITLB_MISS;
136 return STAT_NONE;
137}
138
139static const char *get_ratio_color(const double ratios[3], double val)
140{
141 const char *color = PERF_COLOR_NORMAL;
142
143 if (val > ratios[0])
144 color = PERF_COLOR_RED;
145 else if (val > ratios[1])
146 color = PERF_COLOR_MAGENTA;
147 else if (val > ratios[2])
148 color = PERF_COLOR_YELLOW;
149
150 return color;
151}
152
153static double find_stat(const struct evsel *evsel, int aggr_idx, enum stat_type type)
154{
155 const struct evsel *cur;
156 int evsel_ctx = evsel_context(evsel);
157
158 evlist__for_each_entry(evsel->evlist, cur) {
159 struct perf_stat_aggr *aggr;
160
161 /* Ignore the evsel that is being searched from. */
162 if (evsel == cur)
163 continue;
164
165 /* Ignore evsels that are part of different groups. */
166 if (evsel->core.leader->nr_members > 1 &&
167 evsel->core.leader != cur->core.leader)
168 continue;
169 /* Ignore evsels with mismatched modifiers. */
170 if (evsel_ctx != evsel_context(cur))
171 continue;
172 /* Ignore if not the cgroup we're looking for. */
173 if (evsel->cgrp != cur->cgrp)
174 continue;
175 /* Ignore if not the stat we're looking for. */
176 if (type != evsel__stat_type(cur))
177 continue;
178
179 aggr = &cur->stats->aggr[aggr_idx];
180 if (type == STAT_NSECS)
181 return aggr->counts.val;
182 return aggr->counts.val * cur->scale;
183 }
184 return 0.0;
185}
186
187static void print_ratio(struct perf_stat_config *config,
188 const struct evsel *evsel, int aggr_idx,
189 double numerator, struct perf_stat_output_ctx *out,
190 enum stat_type denominator_type,
191 const double color_ratios[3], const char *unit)
192{
193 double denominator = find_stat(evsel, aggr_idx, denominator_type);
194
195 if (numerator && denominator) {
196 double ratio = numerator / denominator * 100.0;
197 const char *color = get_ratio_color(color_ratios, ratio);
198
199 out->print_metric(config, out->ctx, color, "%7.2f%%", unit, ratio);
200 } else
201 out->print_metric(config, out->ctx, NULL, NULL, unit, 0);
202}
203
204static void print_stalled_cycles_front(struct perf_stat_config *config,
205 const struct evsel *evsel,
206 int aggr_idx, double stalled,
207 struct perf_stat_output_ctx *out)
208{
209 static const double color_ratios[3] = {50.0, 30.0, 10.0};
210
211 print_ratio(config, evsel, aggr_idx, stalled, out, STAT_CYCLES, color_ratios,
212 "frontend cycles idle");
213}
214
215static void print_stalled_cycles_back(struct perf_stat_config *config,
216 const struct evsel *evsel,
217 int aggr_idx, double stalled,
218 struct perf_stat_output_ctx *out)
219{
220 static const double color_ratios[3] = {75.0, 50.0, 20.0};
221
222 print_ratio(config, evsel, aggr_idx, stalled, out, STAT_CYCLES, color_ratios,
223 "backend cycles idle");
224}
225
226static void print_branch_miss(struct perf_stat_config *config,
227 const struct evsel *evsel,
228 int aggr_idx, double misses,
229 struct perf_stat_output_ctx *out)
230{
231 static const double color_ratios[3] = {20.0, 10.0, 5.0};
232
233 print_ratio(config, evsel, aggr_idx, misses, out, STAT_BRANCHES, color_ratios,
234 "of all branches");
235}
236
237static void print_l1d_miss(struct perf_stat_config *config,
238 const struct evsel *evsel,
239 int aggr_idx, double misses,
240 struct perf_stat_output_ctx *out)
241{
242 static const double color_ratios[3] = {20.0, 10.0, 5.0};
243
244 print_ratio(config, evsel, aggr_idx, misses, out, STAT_L1_DCACHE, color_ratios,
245 "of all L1-dcache accesses");
246}
247
248static void print_l1i_miss(struct perf_stat_config *config,
249 const struct evsel *evsel,
250 int aggr_idx, double misses,
251 struct perf_stat_output_ctx *out)
252{
253 static const double color_ratios[3] = {20.0, 10.0, 5.0};
254
255 print_ratio(config, evsel, aggr_idx, misses, out, STAT_L1_ICACHE, color_ratios,
256 "of all L1-icache accesses");
257}
258
259static void print_ll_miss(struct perf_stat_config *config,
260 const struct evsel *evsel,
261 int aggr_idx, double misses,
262 struct perf_stat_output_ctx *out)
263{
264 static const double color_ratios[3] = {20.0, 10.0, 5.0};
265
266 print_ratio(config, evsel, aggr_idx, misses, out, STAT_LL_CACHE, color_ratios,
267 "of all LL-cache accesses");
268}
269
270static void print_dtlb_miss(struct perf_stat_config *config,
271 const struct evsel *evsel,
272 int aggr_idx, double misses,
273 struct perf_stat_output_ctx *out)
274{
275 static const double color_ratios[3] = {20.0, 10.0, 5.0};
276
277 print_ratio(config, evsel, aggr_idx, misses, out, STAT_DTLB_CACHE, color_ratios,
278 "of all dTLB cache accesses");
279}
280
281static void print_itlb_miss(struct perf_stat_config *config,
282 const struct evsel *evsel,
283 int aggr_idx, double misses,
284 struct perf_stat_output_ctx *out)
285{
286 static const double color_ratios[3] = {20.0, 10.0, 5.0};
287
288 print_ratio(config, evsel, aggr_idx, misses, out, STAT_ITLB_CACHE, color_ratios,
289 "of all iTLB cache accesses");
290}
291
292static void print_cache_miss(struct perf_stat_config *config,
293 const struct evsel *evsel,
294 int aggr_idx, double misses,
295 struct perf_stat_output_ctx *out)
296{
297 static const double color_ratios[3] = {20.0, 10.0, 5.0};
298
299 print_ratio(config, evsel, aggr_idx, misses, out, STAT_CACHE_REFS, color_ratios,
300 "of all cache refs");
301}
302
303static void print_instructions(struct perf_stat_config *config,
304 const struct evsel *evsel,
305 int aggr_idx, double instructions,
306 struct perf_stat_output_ctx *out)
307{
308 print_metric_t print_metric = out->print_metric;
309 void *ctxp = out->ctx;
310 double cycles = find_stat(evsel, aggr_idx, STAT_CYCLES);
311 double max_stalled = max(find_stat(evsel, aggr_idx, STAT_STALLED_CYCLES_FRONT),
312 find_stat(evsel, aggr_idx, STAT_STALLED_CYCLES_BACK));
313
314 if (cycles) {
315 print_metric(config, ctxp, NULL, "%7.2f ", "insn per cycle",
316 instructions / cycles);
317 } else
318 print_metric(config, ctxp, NULL, NULL, "insn per cycle", 0);
319
320 if (max_stalled && instructions) {
321 out->new_line(config, ctxp);
322 print_metric(config, ctxp, NULL, "%7.2f ", "stalled cycles per insn",
323 max_stalled / instructions);
324 }
325}
326
327static void print_cycles(struct perf_stat_config *config,
328 const struct evsel *evsel,
329 int aggr_idx, double cycles,
330 struct perf_stat_output_ctx *out)
331{
332 double nsecs = find_stat(evsel, aggr_idx, STAT_NSECS);
333
334 if (cycles && nsecs) {
335 double ratio = cycles / nsecs;
336
337 out->print_metric(config, out->ctx, NULL, "%8.3f", "GHz", ratio);
338 } else
339 out->print_metric(config, out->ctx, NULL, NULL, "GHz", 0);
340}
341
342static void print_nsecs(struct perf_stat_config *config,
343 const struct evsel *evsel,
344 int aggr_idx __maybe_unused, double nsecs,
345 struct perf_stat_output_ctx *out)
346{
347 print_metric_t print_metric = out->print_metric;
348 void *ctxp = out->ctx;
349 double wall_time = avg_stats(&walltime_nsecs_stats);
350
351 if (wall_time) {
352 print_metric(config, ctxp, NULL, "%8.3f", "CPUs utilized",
353 nsecs / (wall_time * evsel->scale));
354 } else
355 print_metric(config, ctxp, NULL, NULL, "CPUs utilized", 0);
356}
357
358static int prepare_metric(struct evsel **metric_events,
359 struct metric_ref *metric_refs,
360 struct expr_parse_ctx *pctx,
361 int aggr_idx)
362{
363 int i;
364
365 for (i = 0; metric_events[i]; i++) {
366 char *n;
367 double val;
368 int source_count = 0;
369
370 if (evsel__is_tool(metric_events[i])) {
371 struct stats *stats;
372 double scale;
373
374 switch (metric_events[i]->tool_event) {
375 case PERF_TOOL_DURATION_TIME:
376 stats = &walltime_nsecs_stats;
377 scale = 1e-9;
378 break;
379 case PERF_TOOL_USER_TIME:
380 stats = &ru_stats.ru_utime_usec_stat;
381 scale = 1e-6;
382 break;
383 case PERF_TOOL_SYSTEM_TIME:
384 stats = &ru_stats.ru_stime_usec_stat;
385 scale = 1e-6;
386 break;
387 case PERF_TOOL_NONE:
388 pr_err("Invalid tool event 'none'");
389 abort();
390 case PERF_TOOL_MAX:
391 pr_err("Invalid tool event 'max'");
392 abort();
393 default:
394 pr_err("Unknown tool event '%s'", evsel__name(metric_events[i]));
395 abort();
396 }
397 val = avg_stats(stats) * scale;
398 source_count = 1;
399 } else {
400 struct perf_stat_evsel *ps = metric_events[i]->stats;
401 struct perf_stat_aggr *aggr = &ps->aggr[aggr_idx];
402
403 if (!aggr)
404 break;
405
406 if (!metric_events[i]->supported) {
407 /*
408 * Not supported events will have a count of 0,
409 * which can be confusing in a
410 * metric. Explicitly set the value to NAN. Not
411 * counted events (enable time of 0) are read as
412 * 0.
413 */
414 val = NAN;
415 source_count = 0;
416 } else {
417 /*
418 * If an event was scaled during stat gathering,
419 * reverse the scale before computing the
420 * metric.
421 */
422 val = aggr->counts.val * (1.0 / metric_events[i]->scale);
423 source_count = evsel__source_count(metric_events[i]);
424 }
425 }
426 n = strdup(evsel__metric_id(metric_events[i]));
427 if (!n)
428 return -ENOMEM;
429
430 expr__add_id_val_source_count(pctx, n, val, source_count);
431 }
432
433 for (int j = 0; metric_refs && metric_refs[j].metric_name; j++) {
434 int ret = expr__add_ref(pctx, &metric_refs[j]);
435
436 if (ret)
437 return ret;
438 }
439
440 return i;
441}
442
443static void generic_metric(struct perf_stat_config *config,
444 const char *metric_expr,
445 const char *metric_threshold,
446 struct evsel **metric_events,
447 struct metric_ref *metric_refs,
448 char *name,
449 const char *metric_name,
450 const char *metric_unit,
451 int runtime,
452 int aggr_idx,
453 struct perf_stat_output_ctx *out)
454{
455 print_metric_t print_metric = out->print_metric;
456 struct expr_parse_ctx *pctx;
457 double ratio, scale, threshold;
458 int i;
459 void *ctxp = out->ctx;
460 const char *color = NULL;
461
462 pctx = expr__ctx_new();
463 if (!pctx)
464 return;
465
466 if (config->user_requested_cpu_list)
467 pctx->sctx.user_requested_cpu_list = strdup(config->user_requested_cpu_list);
468 pctx->sctx.runtime = runtime;
469 pctx->sctx.system_wide = config->system_wide;
470 i = prepare_metric(metric_events, metric_refs, pctx, aggr_idx);
471 if (i < 0) {
472 expr__ctx_free(pctx);
473 return;
474 }
475 if (!metric_events[i]) {
476 if (expr__parse(&ratio, pctx, metric_expr) == 0) {
477 char *unit;
478 char metric_bf[64];
479
480 if (metric_threshold &&
481 expr__parse(&threshold, pctx, metric_threshold) == 0 &&
482 !isnan(threshold)) {
483 color = fpclassify(threshold) == FP_ZERO
484 ? PERF_COLOR_GREEN : PERF_COLOR_RED;
485 }
486
487 if (metric_unit && metric_name) {
488 if (perf_pmu__convert_scale(metric_unit,
489 &unit, &scale) >= 0) {
490 ratio *= scale;
491 }
492 if (strstr(metric_expr, "?"))
493 scnprintf(metric_bf, sizeof(metric_bf),
494 "%s %s_%d", unit, metric_name, runtime);
495 else
496 scnprintf(metric_bf, sizeof(metric_bf),
497 "%s %s", unit, metric_name);
498
499 print_metric(config, ctxp, color, "%8.1f",
500 metric_bf, ratio);
501 } else {
502 print_metric(config, ctxp, color, "%8.2f",
503 metric_name ?
504 metric_name :
505 out->force_header ? name : "",
506 ratio);
507 }
508 } else {
509 print_metric(config, ctxp, color, /*unit=*/NULL,
510 out->force_header ?
511 (metric_name ? metric_name : name) : "", 0);
512 }
513 } else {
514 print_metric(config, ctxp, color, /*unit=*/NULL,
515 out->force_header ?
516 (metric_name ? metric_name : name) : "", 0);
517 }
518
519 expr__ctx_free(pctx);
520}
521
522double test_generic_metric(struct metric_expr *mexp, int aggr_idx)
523{
524 struct expr_parse_ctx *pctx;
525 double ratio = 0.0;
526
527 pctx = expr__ctx_new();
528 if (!pctx)
529 return NAN;
530
531 if (prepare_metric(mexp->metric_events, mexp->metric_refs, pctx, aggr_idx) < 0)
532 goto out;
533
534 if (expr__parse(&ratio, pctx, mexp->metric_expr))
535 ratio = 0.0;
536
537out:
538 expr__ctx_free(pctx);
539 return ratio;
540}
541
542static void perf_stat__print_metricgroup_header(struct perf_stat_config *config,
543 struct evsel *evsel,
544 void *ctxp,
545 const char *name,
546 struct perf_stat_output_ctx *out)
547{
548 bool need_full_name = perf_pmus__num_core_pmus() > 1;
549 static const char *last_name;
550 static const char *last_pmu;
551 char full_name[64];
552
553 /*
554 * A metricgroup may have several metric events,
555 * e.g.,TopdownL1 on e-core of ADL.
556 * The name has been output by the first metric
557 * event. Only align with other metics from
558 * different metric events.
559 */
560 if (last_name && !strcmp(last_name, name)) {
561 if (!need_full_name || !strcmp(last_pmu, evsel->pmu_name)) {
562 out->print_metricgroup_header(config, ctxp, NULL);
563 return;
564 }
565 }
566
567 if (need_full_name)
568 scnprintf(full_name, sizeof(full_name), "%s (%s)", name, evsel->pmu_name);
569 else
570 scnprintf(full_name, sizeof(full_name), "%s", name);
571
572 out->print_metricgroup_header(config, ctxp, full_name);
573
574 last_name = name;
575 last_pmu = evsel->pmu_name;
576}
577
578/**
579 * perf_stat__print_shadow_stats_metricgroup - Print out metrics associated with the evsel
580 * For the non-default, all metrics associated
581 * with the evsel are printed.
582 * For the default mode, only the metrics from
583 * the same metricgroup and the name of the
584 * metricgroup are printed. To print the metrics
585 * from the next metricgroup (if available),
586 * invoke the function with correspoinding
587 * metric_expr.
588 */
589void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
590 struct evsel *evsel,
591 int aggr_idx,
592 int *num,
593 void *from,
594 struct perf_stat_output_ctx *out,
595 struct rblist *metric_events)
596{
597 struct metric_event *me;
598 struct metric_expr *mexp = from;
599 void *ctxp = out->ctx;
600 bool header_printed = false;
601 const char *name = NULL;
602
603 me = metricgroup__lookup(metric_events, evsel, false);
604 if (me == NULL)
605 return NULL;
606
607 if (!mexp)
608 mexp = list_first_entry(&me->head, typeof(*mexp), nd);
609
610 list_for_each_entry_from(mexp, &me->head, nd) {
611 /* Print the display name of the Default metricgroup */
612 if (!config->metric_only && me->is_default) {
613 if (!name)
614 name = mexp->default_metricgroup_name;
615 /*
616 * Two or more metricgroup may share the same metric
617 * event, e.g., TopdownL1 and TopdownL2 on SPR.
618 * Return and print the prefix, e.g., noise, running
619 * for the next metricgroup.
620 */
621 if (strcmp(name, mexp->default_metricgroup_name))
622 return (void *)mexp;
623 /* Only print the name of the metricgroup once */
624 if (!header_printed) {
625 header_printed = true;
626 perf_stat__print_metricgroup_header(config, evsel, ctxp,
627 name, out);
628 }
629 }
630
631 if ((*num)++ > 0)
632 out->new_line(config, ctxp);
633 generic_metric(config, mexp->metric_expr, mexp->metric_threshold,
634 mexp->metric_events, mexp->metric_refs, evsel->name,
635 mexp->metric_name, mexp->metric_unit, mexp->runtime,
636 aggr_idx, out);
637 }
638
639 return NULL;
640}
641
642void perf_stat__print_shadow_stats(struct perf_stat_config *config,
643 struct evsel *evsel,
644 double avg, int aggr_idx,
645 struct perf_stat_output_ctx *out,
646 struct rblist *metric_events)
647{
648 typedef void (*stat_print_function_t)(struct perf_stat_config *config,
649 const struct evsel *evsel,
650 int aggr_idx, double misses,
651 struct perf_stat_output_ctx *out);
652 static const stat_print_function_t stat_print_function[STAT_MAX] = {
653 [STAT_INSTRUCTIONS] = print_instructions,
654 [STAT_BRANCH_MISS] = print_branch_miss,
655 [STAT_L1D_MISS] = print_l1d_miss,
656 [STAT_L1I_MISS] = print_l1i_miss,
657 [STAT_DTLB_MISS] = print_dtlb_miss,
658 [STAT_ITLB_MISS] = print_itlb_miss,
659 [STAT_LL_MISS] = print_ll_miss,
660 [STAT_CACHE_MISSES] = print_cache_miss,
661 [STAT_STALLED_CYCLES_FRONT] = print_stalled_cycles_front,
662 [STAT_STALLED_CYCLES_BACK] = print_stalled_cycles_back,
663 [STAT_CYCLES] = print_cycles,
664 [STAT_NSECS] = print_nsecs,
665 };
666 print_metric_t print_metric = out->print_metric;
667 void *ctxp = out->ctx;
668 int num = 1;
669
670 if (config->iostat_run) {
671 iostat_print_metric(config, evsel, out);
672 } else {
673 stat_print_function_t fn = stat_print_function[evsel__stat_type(evsel)];
674
675 if (fn)
676 fn(config, evsel, aggr_idx, avg, out);
677 else {
678 double nsecs = find_stat(evsel, aggr_idx, STAT_NSECS);
679
680 if (nsecs) {
681 char unit = ' ';
682 char unit_buf[10] = "/sec";
683 double ratio = convert_unit_double(1000000000.0 * avg / nsecs,
684 &unit);
685
686 if (unit != ' ')
687 snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
688 print_metric(config, ctxp, NULL, "%8.3f", unit_buf, ratio);
689 } else
690 num = 0;
691 }
692 }
693
694 perf_stat__print_shadow_stats_metricgroup(config, evsel, aggr_idx,
695 &num, NULL, out, metric_events);
696
697 if (num == 0)
698 print_metric(config, ctxp, NULL, NULL, NULL, 0);
699}
700
701/**
702 * perf_stat__skip_metric_event - Skip the evsel in the Default metricgroup,
703 * if it's not running or not the metric event.
704 */
705bool perf_stat__skip_metric_event(struct evsel *evsel,
706 struct rblist *metric_events,
707 u64 ena, u64 run)
708{
709 if (!evsel->default_metricgroup)
710 return false;
711
712 if (!ena || !run)
713 return true;
714
715 return !metricgroup__lookup(metric_events, evsel, false);
716}
1// SPDX-License-Identifier: GPL-2.0
2#include <stdio.h>
3#include "evsel.h"
4#include "stat.h"
5#include "color.h"
6#include "pmu.h"
7#include "rblist.h"
8#include "evlist.h"
9#include "expr.h"
10#include "metricgroup.h"
11#include "cgroup.h"
12#include "units.h"
13#include <linux/zalloc.h>
14#include "iostat.h"
15
16/*
17 * AGGR_GLOBAL: Use CPU 0
18 * AGGR_SOCKET: Use first CPU of socket
19 * AGGR_DIE: Use first CPU of die
20 * AGGR_CORE: Use first CPU of core
21 * AGGR_NONE: Use matching CPU
22 * AGGR_THREAD: Not supported?
23 */
24
25struct runtime_stat rt_stat;
26struct stats walltime_nsecs_stats;
27
28struct saved_value {
29 struct rb_node rb_node;
30 struct evsel *evsel;
31 enum stat_type type;
32 int ctx;
33 int cpu;
34 struct cgroup *cgrp;
35 struct runtime_stat *stat;
36 struct stats stats;
37 u64 metric_total;
38 int metric_other;
39};
40
41static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
42{
43 struct saved_value *a = container_of(rb_node,
44 struct saved_value,
45 rb_node);
46 const struct saved_value *b = entry;
47
48 if (a->cpu != b->cpu)
49 return a->cpu - b->cpu;
50
51 /*
52 * Previously the rbtree was used to link generic metrics.
53 * The keys were evsel/cpu. Now the rbtree is extended to support
54 * per-thread shadow stats. For shadow stats case, the keys
55 * are cpu/type/ctx/stat (evsel is NULL). For generic metrics
56 * case, the keys are still evsel/cpu (type/ctx/stat are 0 or NULL).
57 */
58 if (a->type != b->type)
59 return a->type - b->type;
60
61 if (a->ctx != b->ctx)
62 return a->ctx - b->ctx;
63
64 if (a->cgrp != b->cgrp)
65 return (char *)a->cgrp < (char *)b->cgrp ? -1 : +1;
66
67 if (a->evsel == NULL && b->evsel == NULL) {
68 if (a->stat == b->stat)
69 return 0;
70
71 if ((char *)a->stat < (char *)b->stat)
72 return -1;
73
74 return 1;
75 }
76
77 if (a->evsel == b->evsel)
78 return 0;
79 if ((char *)a->evsel < (char *)b->evsel)
80 return -1;
81 return +1;
82}
83
84static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
85 const void *entry)
86{
87 struct saved_value *nd = malloc(sizeof(struct saved_value));
88
89 if (!nd)
90 return NULL;
91 memcpy(nd, entry, sizeof(struct saved_value));
92 return &nd->rb_node;
93}
94
95static void saved_value_delete(struct rblist *rblist __maybe_unused,
96 struct rb_node *rb_node)
97{
98 struct saved_value *v;
99
100 BUG_ON(!rb_node);
101 v = container_of(rb_node, struct saved_value, rb_node);
102 free(v);
103}
104
105static struct saved_value *saved_value_lookup(struct evsel *evsel,
106 int cpu,
107 bool create,
108 enum stat_type type,
109 int ctx,
110 struct runtime_stat *st,
111 struct cgroup *cgrp)
112{
113 struct rblist *rblist;
114 struct rb_node *nd;
115 struct saved_value dm = {
116 .cpu = cpu,
117 .evsel = evsel,
118 .type = type,
119 .ctx = ctx,
120 .stat = st,
121 .cgrp = cgrp,
122 };
123
124 rblist = &st->value_list;
125
126 /* don't use context info for clock events */
127 if (type == STAT_NSECS)
128 dm.ctx = 0;
129
130 nd = rblist__find(rblist, &dm);
131 if (nd)
132 return container_of(nd, struct saved_value, rb_node);
133 if (create) {
134 rblist__add_node(rblist, &dm);
135 nd = rblist__find(rblist, &dm);
136 if (nd)
137 return container_of(nd, struct saved_value, rb_node);
138 }
139 return NULL;
140}
141
142void runtime_stat__init(struct runtime_stat *st)
143{
144 struct rblist *rblist = &st->value_list;
145
146 rblist__init(rblist);
147 rblist->node_cmp = saved_value_cmp;
148 rblist->node_new = saved_value_new;
149 rblist->node_delete = saved_value_delete;
150}
151
152void runtime_stat__exit(struct runtime_stat *st)
153{
154 rblist__exit(&st->value_list);
155}
156
157void perf_stat__init_shadow_stats(void)
158{
159 runtime_stat__init(&rt_stat);
160}
161
162static int evsel_context(struct evsel *evsel)
163{
164 int ctx = 0;
165
166 if (evsel->core.attr.exclude_kernel)
167 ctx |= CTX_BIT_KERNEL;
168 if (evsel->core.attr.exclude_user)
169 ctx |= CTX_BIT_USER;
170 if (evsel->core.attr.exclude_hv)
171 ctx |= CTX_BIT_HV;
172 if (evsel->core.attr.exclude_host)
173 ctx |= CTX_BIT_HOST;
174 if (evsel->core.attr.exclude_idle)
175 ctx |= CTX_BIT_IDLE;
176
177 return ctx;
178}
179
180static void reset_stat(struct runtime_stat *st)
181{
182 struct rblist *rblist;
183 struct rb_node *pos, *next;
184
185 rblist = &st->value_list;
186 next = rb_first_cached(&rblist->entries);
187 while (next) {
188 pos = next;
189 next = rb_next(pos);
190 memset(&container_of(pos, struct saved_value, rb_node)->stats,
191 0,
192 sizeof(struct stats));
193 }
194}
195
196void perf_stat__reset_shadow_stats(void)
197{
198 reset_stat(&rt_stat);
199 memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
200}
201
202void perf_stat__reset_shadow_per_stat(struct runtime_stat *st)
203{
204 reset_stat(st);
205}
206
207struct runtime_stat_data {
208 int ctx;
209 struct cgroup *cgrp;
210};
211
212static void update_runtime_stat(struct runtime_stat *st,
213 enum stat_type type,
214 int cpu, u64 count,
215 struct runtime_stat_data *rsd)
216{
217 struct saved_value *v = saved_value_lookup(NULL, cpu, true, type,
218 rsd->ctx, st, rsd->cgrp);
219
220 if (v)
221 update_stats(&v->stats, count);
222}
223
224/*
225 * Update various tracking values we maintain to print
226 * more semantic information such as miss/hit ratios,
227 * instruction rates, etc:
228 */
229void perf_stat__update_shadow_stats(struct evsel *counter, u64 count,
230 int cpu, struct runtime_stat *st)
231{
232 u64 count_ns = count;
233 struct saved_value *v;
234 struct runtime_stat_data rsd = {
235 .ctx = evsel_context(counter),
236 .cgrp = counter->cgrp,
237 };
238
239 count *= counter->scale;
240
241 if (evsel__is_clock(counter))
242 update_runtime_stat(st, STAT_NSECS, cpu, count_ns, &rsd);
243 else if (evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
244 update_runtime_stat(st, STAT_CYCLES, cpu, count, &rsd);
245 else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
246 update_runtime_stat(st, STAT_CYCLES_IN_TX, cpu, count, &rsd);
247 else if (perf_stat_evsel__is(counter, TRANSACTION_START))
248 update_runtime_stat(st, STAT_TRANSACTION, cpu, count, &rsd);
249 else if (perf_stat_evsel__is(counter, ELISION_START))
250 update_runtime_stat(st, STAT_ELISION, cpu, count, &rsd);
251 else if (perf_stat_evsel__is(counter, TOPDOWN_TOTAL_SLOTS))
252 update_runtime_stat(st, STAT_TOPDOWN_TOTAL_SLOTS,
253 cpu, count, &rsd);
254 else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_ISSUED))
255 update_runtime_stat(st, STAT_TOPDOWN_SLOTS_ISSUED,
256 cpu, count, &rsd);
257 else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_RETIRED))
258 update_runtime_stat(st, STAT_TOPDOWN_SLOTS_RETIRED,
259 cpu, count, &rsd);
260 else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_BUBBLES))
261 update_runtime_stat(st, STAT_TOPDOWN_FETCH_BUBBLES,
262 cpu, count, &rsd);
263 else if (perf_stat_evsel__is(counter, TOPDOWN_RECOVERY_BUBBLES))
264 update_runtime_stat(st, STAT_TOPDOWN_RECOVERY_BUBBLES,
265 cpu, count, &rsd);
266 else if (perf_stat_evsel__is(counter, TOPDOWN_RETIRING))
267 update_runtime_stat(st, STAT_TOPDOWN_RETIRING,
268 cpu, count, &rsd);
269 else if (perf_stat_evsel__is(counter, TOPDOWN_BAD_SPEC))
270 update_runtime_stat(st, STAT_TOPDOWN_BAD_SPEC,
271 cpu, count, &rsd);
272 else if (perf_stat_evsel__is(counter, TOPDOWN_FE_BOUND))
273 update_runtime_stat(st, STAT_TOPDOWN_FE_BOUND,
274 cpu, count, &rsd);
275 else if (perf_stat_evsel__is(counter, TOPDOWN_BE_BOUND))
276 update_runtime_stat(st, STAT_TOPDOWN_BE_BOUND,
277 cpu, count, &rsd);
278 else if (perf_stat_evsel__is(counter, TOPDOWN_HEAVY_OPS))
279 update_runtime_stat(st, STAT_TOPDOWN_HEAVY_OPS,
280 cpu, count, &rsd);
281 else if (perf_stat_evsel__is(counter, TOPDOWN_BR_MISPREDICT))
282 update_runtime_stat(st, STAT_TOPDOWN_BR_MISPREDICT,
283 cpu, count, &rsd);
284 else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_LAT))
285 update_runtime_stat(st, STAT_TOPDOWN_FETCH_LAT,
286 cpu, count, &rsd);
287 else if (perf_stat_evsel__is(counter, TOPDOWN_MEM_BOUND))
288 update_runtime_stat(st, STAT_TOPDOWN_MEM_BOUND,
289 cpu, count, &rsd);
290 else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
291 update_runtime_stat(st, STAT_STALLED_CYCLES_FRONT,
292 cpu, count, &rsd);
293 else if (evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
294 update_runtime_stat(st, STAT_STALLED_CYCLES_BACK,
295 cpu, count, &rsd);
296 else if (evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
297 update_runtime_stat(st, STAT_BRANCHES, cpu, count, &rsd);
298 else if (evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
299 update_runtime_stat(st, STAT_CACHEREFS, cpu, count, &rsd);
300 else if (evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
301 update_runtime_stat(st, STAT_L1_DCACHE, cpu, count, &rsd);
302 else if (evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
303 update_runtime_stat(st, STAT_L1_ICACHE, cpu, count, &rsd);
304 else if (evsel__match(counter, HW_CACHE, HW_CACHE_LL))
305 update_runtime_stat(st, STAT_LL_CACHE, cpu, count, &rsd);
306 else if (evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
307 update_runtime_stat(st, STAT_DTLB_CACHE, cpu, count, &rsd);
308 else if (evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
309 update_runtime_stat(st, STAT_ITLB_CACHE, cpu, count, &rsd);
310 else if (perf_stat_evsel__is(counter, SMI_NUM))
311 update_runtime_stat(st, STAT_SMI_NUM, cpu, count, &rsd);
312 else if (perf_stat_evsel__is(counter, APERF))
313 update_runtime_stat(st, STAT_APERF, cpu, count, &rsd);
314
315 if (counter->collect_stat) {
316 v = saved_value_lookup(counter, cpu, true, STAT_NONE, 0, st,
317 rsd.cgrp);
318 update_stats(&v->stats, count);
319 if (counter->metric_leader)
320 v->metric_total += count;
321 } else if (counter->metric_leader) {
322 v = saved_value_lookup(counter->metric_leader,
323 cpu, true, STAT_NONE, 0, st, rsd.cgrp);
324 v->metric_total += count;
325 v->metric_other++;
326 }
327}
328
329/* used for get_ratio_color() */
330enum grc_type {
331 GRC_STALLED_CYCLES_FE,
332 GRC_STALLED_CYCLES_BE,
333 GRC_CACHE_MISSES,
334 GRC_MAX_NR
335};
336
337static const char *get_ratio_color(enum grc_type type, double ratio)
338{
339 static const double grc_table[GRC_MAX_NR][3] = {
340 [GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 },
341 [GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 },
342 [GRC_CACHE_MISSES] = { 20.0, 10.0, 5.0 },
343 };
344 const char *color = PERF_COLOR_NORMAL;
345
346 if (ratio > grc_table[type][0])
347 color = PERF_COLOR_RED;
348 else if (ratio > grc_table[type][1])
349 color = PERF_COLOR_MAGENTA;
350 else if (ratio > grc_table[type][2])
351 color = PERF_COLOR_YELLOW;
352
353 return color;
354}
355
356static struct evsel *perf_stat__find_event(struct evlist *evsel_list,
357 const char *name)
358{
359 struct evsel *c2;
360
361 evlist__for_each_entry (evsel_list, c2) {
362 if (!strcasecmp(c2->name, name) && !c2->collect_stat)
363 return c2;
364 }
365 return NULL;
366}
367
368/* Mark MetricExpr target events and link events using them to them. */
369void perf_stat__collect_metric_expr(struct evlist *evsel_list)
370{
371 struct evsel *counter, *leader, **metric_events, *oc;
372 bool found;
373 struct expr_parse_ctx ctx;
374 struct hashmap_entry *cur;
375 size_t bkt;
376 int i;
377
378 expr__ctx_init(&ctx);
379 evlist__for_each_entry(evsel_list, counter) {
380 bool invalid = false;
381
382 leader = evsel__leader(counter);
383 if (!counter->metric_expr)
384 continue;
385
386 expr__ctx_clear(&ctx);
387 metric_events = counter->metric_events;
388 if (!metric_events) {
389 if (expr__find_other(counter->metric_expr,
390 counter->name,
391 &ctx, 1) < 0)
392 continue;
393
394 metric_events = calloc(sizeof(struct evsel *),
395 hashmap__size(&ctx.ids) + 1);
396 if (!metric_events) {
397 expr__ctx_clear(&ctx);
398 return;
399 }
400 counter->metric_events = metric_events;
401 }
402
403 i = 0;
404 hashmap__for_each_entry((&ctx.ids), cur, bkt) {
405 const char *metric_name = (const char *)cur->key;
406
407 found = false;
408 if (leader) {
409 /* Search in group */
410 for_each_group_member (oc, leader) {
411 if (!strcasecmp(oc->name,
412 metric_name) &&
413 !oc->collect_stat) {
414 found = true;
415 break;
416 }
417 }
418 }
419 if (!found) {
420 /* Search ignoring groups */
421 oc = perf_stat__find_event(evsel_list,
422 metric_name);
423 }
424 if (!oc) {
425 /* Deduping one is good enough to handle duplicated PMUs. */
426 static char *printed;
427
428 /*
429 * Adding events automatically would be difficult, because
430 * it would risk creating groups that are not schedulable.
431 * perf stat doesn't understand all the scheduling constraints
432 * of events. So we ask the user instead to add the missing
433 * events.
434 */
435 if (!printed ||
436 strcasecmp(printed, metric_name)) {
437 fprintf(stderr,
438 "Add %s event to groups to get metric expression for %s\n",
439 metric_name,
440 counter->name);
441 printed = strdup(metric_name);
442 }
443 invalid = true;
444 continue;
445 }
446 metric_events[i++] = oc;
447 oc->collect_stat = true;
448 }
449 metric_events[i] = NULL;
450 if (invalid) {
451 free(metric_events);
452 counter->metric_events = NULL;
453 counter->metric_expr = NULL;
454 }
455 }
456 expr__ctx_clear(&ctx);
457}
458
459static double runtime_stat_avg(struct runtime_stat *st,
460 enum stat_type type, int cpu,
461 struct runtime_stat_data *rsd)
462{
463 struct saved_value *v;
464
465 v = saved_value_lookup(NULL, cpu, false, type, rsd->ctx, st, rsd->cgrp);
466 if (!v)
467 return 0.0;
468
469 return avg_stats(&v->stats);
470}
471
472static double runtime_stat_n(struct runtime_stat *st,
473 enum stat_type type, int cpu,
474 struct runtime_stat_data *rsd)
475{
476 struct saved_value *v;
477
478 v = saved_value_lookup(NULL, cpu, false, type, rsd->ctx, st, rsd->cgrp);
479 if (!v)
480 return 0.0;
481
482 return v->stats.n;
483}
484
485static void print_stalled_cycles_frontend(struct perf_stat_config *config,
486 int cpu, double avg,
487 struct perf_stat_output_ctx *out,
488 struct runtime_stat *st,
489 struct runtime_stat_data *rsd)
490{
491 double total, ratio = 0.0;
492 const char *color;
493
494 total = runtime_stat_avg(st, STAT_CYCLES, cpu, rsd);
495
496 if (total)
497 ratio = avg / total * 100.0;
498
499 color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio);
500
501 if (ratio)
502 out->print_metric(config, out->ctx, color, "%7.2f%%", "frontend cycles idle",
503 ratio);
504 else
505 out->print_metric(config, out->ctx, NULL, NULL, "frontend cycles idle", 0);
506}
507
508static void print_stalled_cycles_backend(struct perf_stat_config *config,
509 int cpu, double avg,
510 struct perf_stat_output_ctx *out,
511 struct runtime_stat *st,
512 struct runtime_stat_data *rsd)
513{
514 double total, ratio = 0.0;
515 const char *color;
516
517 total = runtime_stat_avg(st, STAT_CYCLES, cpu, rsd);
518
519 if (total)
520 ratio = avg / total * 100.0;
521
522 color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);
523
524 out->print_metric(config, out->ctx, color, "%7.2f%%", "backend cycles idle", ratio);
525}
526
527static void print_branch_misses(struct perf_stat_config *config,
528 int cpu, double avg,
529 struct perf_stat_output_ctx *out,
530 struct runtime_stat *st,
531 struct runtime_stat_data *rsd)
532{
533 double total, ratio = 0.0;
534 const char *color;
535
536 total = runtime_stat_avg(st, STAT_BRANCHES, cpu, rsd);
537
538 if (total)
539 ratio = avg / total * 100.0;
540
541 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
542
543 out->print_metric(config, out->ctx, color, "%7.2f%%", "of all branches", ratio);
544}
545
546static void print_l1_dcache_misses(struct perf_stat_config *config,
547 int cpu, double avg,
548 struct perf_stat_output_ctx *out,
549 struct runtime_stat *st,
550 struct runtime_stat_data *rsd)
551{
552 double total, ratio = 0.0;
553 const char *color;
554
555 total = runtime_stat_avg(st, STAT_L1_DCACHE, cpu, rsd);
556
557 if (total)
558 ratio = avg / total * 100.0;
559
560 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
561
562 out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-dcache accesses", ratio);
563}
564
565static void print_l1_icache_misses(struct perf_stat_config *config,
566 int cpu, double avg,
567 struct perf_stat_output_ctx *out,
568 struct runtime_stat *st,
569 struct runtime_stat_data *rsd)
570{
571 double total, ratio = 0.0;
572 const char *color;
573
574 total = runtime_stat_avg(st, STAT_L1_ICACHE, cpu, rsd);
575
576 if (total)
577 ratio = avg / total * 100.0;
578
579 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
580 out->print_metric(config, out->ctx, color, "%7.2f%%", "of all L1-icache accesses", ratio);
581}
582
583static void print_dtlb_cache_misses(struct perf_stat_config *config,
584 int cpu, double avg,
585 struct perf_stat_output_ctx *out,
586 struct runtime_stat *st,
587 struct runtime_stat_data *rsd)
588{
589 double total, ratio = 0.0;
590 const char *color;
591
592 total = runtime_stat_avg(st, STAT_DTLB_CACHE, cpu, rsd);
593
594 if (total)
595 ratio = avg / total * 100.0;
596
597 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
598 out->print_metric(config, out->ctx, color, "%7.2f%%", "of all dTLB cache accesses", ratio);
599}
600
601static void print_itlb_cache_misses(struct perf_stat_config *config,
602 int cpu, double avg,
603 struct perf_stat_output_ctx *out,
604 struct runtime_stat *st,
605 struct runtime_stat_data *rsd)
606{
607 double total, ratio = 0.0;
608 const char *color;
609
610 total = runtime_stat_avg(st, STAT_ITLB_CACHE, cpu, rsd);
611
612 if (total)
613 ratio = avg / total * 100.0;
614
615 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
616 out->print_metric(config, out->ctx, color, "%7.2f%%", "of all iTLB cache accesses", ratio);
617}
618
619static void print_ll_cache_misses(struct perf_stat_config *config,
620 int cpu, double avg,
621 struct perf_stat_output_ctx *out,
622 struct runtime_stat *st,
623 struct runtime_stat_data *rsd)
624{
625 double total, ratio = 0.0;
626 const char *color;
627
628 total = runtime_stat_avg(st, STAT_LL_CACHE, cpu, rsd);
629
630 if (total)
631 ratio = avg / total * 100.0;
632
633 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
634 out->print_metric(config, out->ctx, color, "%7.2f%%", "of all LL-cache accesses", ratio);
635}
636
637/*
638 * High level "TopDown" CPU core pipe line bottleneck break down.
639 *
640 * Basic concept following
641 * Yasin, A Top Down Method for Performance analysis and Counter architecture
642 * ISPASS14
643 *
644 * The CPU pipeline is divided into 4 areas that can be bottlenecks:
645 *
646 * Frontend -> Backend -> Retiring
647 * BadSpeculation in addition means out of order execution that is thrown away
648 * (for example branch mispredictions)
649 * Frontend is instruction decoding.
650 * Backend is execution, like computation and accessing data in memory
651 * Retiring is good execution that is not directly bottlenecked
652 *
653 * The formulas are computed in slots.
654 * A slot is an entry in the pipeline each for the pipeline width
655 * (for example a 4-wide pipeline has 4 slots for each cycle)
656 *
657 * Formulas:
658 * BadSpeculation = ((SlotsIssued - SlotsRetired) + RecoveryBubbles) /
659 * TotalSlots
660 * Retiring = SlotsRetired / TotalSlots
661 * FrontendBound = FetchBubbles / TotalSlots
662 * BackendBound = 1.0 - BadSpeculation - Retiring - FrontendBound
663 *
664 * The kernel provides the mapping to the low level CPU events and any scaling
665 * needed for the CPU pipeline width, for example:
666 *
667 * TotalSlots = Cycles * 4
668 *
669 * The scaling factor is communicated in the sysfs unit.
670 *
671 * In some cases the CPU may not be able to measure all the formulas due to
672 * missing events. In this case multiple formulas are combined, as possible.
673 *
674 * Full TopDown supports more levels to sub-divide each area: for example
675 * BackendBound into computing bound and memory bound. For now we only
676 * support Level 1 TopDown.
677 */
678
679static double sanitize_val(double x)
680{
681 if (x < 0 && x >= -0.02)
682 return 0.0;
683 return x;
684}
685
686static double td_total_slots(int cpu, struct runtime_stat *st,
687 struct runtime_stat_data *rsd)
688{
689 return runtime_stat_avg(st, STAT_TOPDOWN_TOTAL_SLOTS, cpu, rsd);
690}
691
692static double td_bad_spec(int cpu, struct runtime_stat *st,
693 struct runtime_stat_data *rsd)
694{
695 double bad_spec = 0;
696 double total_slots;
697 double total;
698
699 total = runtime_stat_avg(st, STAT_TOPDOWN_SLOTS_ISSUED, cpu, rsd) -
700 runtime_stat_avg(st, STAT_TOPDOWN_SLOTS_RETIRED, cpu, rsd) +
701 runtime_stat_avg(st, STAT_TOPDOWN_RECOVERY_BUBBLES, cpu, rsd);
702
703 total_slots = td_total_slots(cpu, st, rsd);
704 if (total_slots)
705 bad_spec = total / total_slots;
706 return sanitize_val(bad_spec);
707}
708
709static double td_retiring(int cpu, struct runtime_stat *st,
710 struct runtime_stat_data *rsd)
711{
712 double retiring = 0;
713 double total_slots = td_total_slots(cpu, st, rsd);
714 double ret_slots = runtime_stat_avg(st, STAT_TOPDOWN_SLOTS_RETIRED,
715 cpu, rsd);
716
717 if (total_slots)
718 retiring = ret_slots / total_slots;
719 return retiring;
720}
721
722static double td_fe_bound(int cpu, struct runtime_stat *st,
723 struct runtime_stat_data *rsd)
724{
725 double fe_bound = 0;
726 double total_slots = td_total_slots(cpu, st, rsd);
727 double fetch_bub = runtime_stat_avg(st, STAT_TOPDOWN_FETCH_BUBBLES,
728 cpu, rsd);
729
730 if (total_slots)
731 fe_bound = fetch_bub / total_slots;
732 return fe_bound;
733}
734
735static double td_be_bound(int cpu, struct runtime_stat *st,
736 struct runtime_stat_data *rsd)
737{
738 double sum = (td_fe_bound(cpu, st, rsd) +
739 td_bad_spec(cpu, st, rsd) +
740 td_retiring(cpu, st, rsd));
741 if (sum == 0)
742 return 0;
743 return sanitize_val(1.0 - sum);
744}
745
746/*
747 * Kernel reports metrics multiplied with slots. To get back
748 * the ratios we need to recreate the sum.
749 */
750
751static double td_metric_ratio(int cpu, enum stat_type type,
752 struct runtime_stat *stat,
753 struct runtime_stat_data *rsd)
754{
755 double sum = runtime_stat_avg(stat, STAT_TOPDOWN_RETIRING, cpu, rsd) +
756 runtime_stat_avg(stat, STAT_TOPDOWN_FE_BOUND, cpu, rsd) +
757 runtime_stat_avg(stat, STAT_TOPDOWN_BE_BOUND, cpu, rsd) +
758 runtime_stat_avg(stat, STAT_TOPDOWN_BAD_SPEC, cpu, rsd);
759 double d = runtime_stat_avg(stat, type, cpu, rsd);
760
761 if (sum)
762 return d / sum;
763 return 0;
764}
765
766/*
767 * ... but only if most of the values are actually available.
768 * We allow two missing.
769 */
770
771static bool full_td(int cpu, struct runtime_stat *stat,
772 struct runtime_stat_data *rsd)
773{
774 int c = 0;
775
776 if (runtime_stat_avg(stat, STAT_TOPDOWN_RETIRING, cpu, rsd) > 0)
777 c++;
778 if (runtime_stat_avg(stat, STAT_TOPDOWN_BE_BOUND, cpu, rsd) > 0)
779 c++;
780 if (runtime_stat_avg(stat, STAT_TOPDOWN_FE_BOUND, cpu, rsd) > 0)
781 c++;
782 if (runtime_stat_avg(stat, STAT_TOPDOWN_BAD_SPEC, cpu, rsd) > 0)
783 c++;
784 return c >= 2;
785}
786
787static void print_smi_cost(struct perf_stat_config *config, int cpu,
788 struct perf_stat_output_ctx *out,
789 struct runtime_stat *st,
790 struct runtime_stat_data *rsd)
791{
792 double smi_num, aperf, cycles, cost = 0.0;
793 const char *color = NULL;
794
795 smi_num = runtime_stat_avg(st, STAT_SMI_NUM, cpu, rsd);
796 aperf = runtime_stat_avg(st, STAT_APERF, cpu, rsd);
797 cycles = runtime_stat_avg(st, STAT_CYCLES, cpu, rsd);
798
799 if ((cycles == 0) || (aperf == 0))
800 return;
801
802 if (smi_num)
803 cost = (aperf - cycles) / aperf * 100.00;
804
805 if (cost > 10)
806 color = PERF_COLOR_RED;
807 out->print_metric(config, out->ctx, color, "%8.1f%%", "SMI cycles%", cost);
808 out->print_metric(config, out->ctx, NULL, "%4.0f", "SMI#", smi_num);
809}
810
811static int prepare_metric(struct evsel **metric_events,
812 struct metric_ref *metric_refs,
813 struct expr_parse_ctx *pctx,
814 int cpu,
815 struct runtime_stat *st)
816{
817 double scale;
818 char *n, *pn;
819 int i, j, ret;
820
821 expr__ctx_init(pctx);
822 for (i = 0; metric_events[i]; i++) {
823 struct saved_value *v;
824 struct stats *stats;
825 u64 metric_total = 0;
826
827 if (!strcmp(metric_events[i]->name, "duration_time")) {
828 stats = &walltime_nsecs_stats;
829 scale = 1e-9;
830 } else {
831 v = saved_value_lookup(metric_events[i], cpu, false,
832 STAT_NONE, 0, st,
833 metric_events[i]->cgrp);
834 if (!v)
835 break;
836 stats = &v->stats;
837 scale = 1.0;
838
839 if (v->metric_other)
840 metric_total = v->metric_total;
841 }
842
843 n = strdup(metric_events[i]->name);
844 if (!n)
845 return -ENOMEM;
846 /*
847 * This display code with --no-merge adds [cpu] postfixes.
848 * These are not supported by the parser. Remove everything
849 * after the space.
850 */
851 pn = strchr(n, ' ');
852 if (pn)
853 *pn = 0;
854
855 if (metric_total)
856 expr__add_id_val(pctx, n, metric_total);
857 else
858 expr__add_id_val(pctx, n, avg_stats(stats)*scale);
859 }
860
861 for (j = 0; metric_refs && metric_refs[j].metric_name; j++) {
862 ret = expr__add_ref(pctx, &metric_refs[j]);
863 if (ret)
864 return ret;
865 }
866
867 return i;
868}
869
870static void generic_metric(struct perf_stat_config *config,
871 const char *metric_expr,
872 struct evsel **metric_events,
873 struct metric_ref *metric_refs,
874 char *name,
875 const char *metric_name,
876 const char *metric_unit,
877 int runtime,
878 int cpu,
879 struct perf_stat_output_ctx *out,
880 struct runtime_stat *st)
881{
882 print_metric_t print_metric = out->print_metric;
883 struct expr_parse_ctx pctx;
884 double ratio, scale;
885 int i;
886 void *ctxp = out->ctx;
887
888 i = prepare_metric(metric_events, metric_refs, &pctx, cpu, st);
889 if (i < 0)
890 return;
891
892 if (!metric_events[i]) {
893 if (expr__parse(&ratio, &pctx, metric_expr, runtime) == 0) {
894 char *unit;
895 char metric_bf[64];
896
897 if (metric_unit && metric_name) {
898 if (perf_pmu__convert_scale(metric_unit,
899 &unit, &scale) >= 0) {
900 ratio *= scale;
901 }
902 if (strstr(metric_expr, "?"))
903 scnprintf(metric_bf, sizeof(metric_bf),
904 "%s %s_%d", unit, metric_name, runtime);
905 else
906 scnprintf(metric_bf, sizeof(metric_bf),
907 "%s %s", unit, metric_name);
908
909 print_metric(config, ctxp, NULL, "%8.1f",
910 metric_bf, ratio);
911 } else {
912 print_metric(config, ctxp, NULL, "%8.2f",
913 metric_name ?
914 metric_name :
915 out->force_header ? name : "",
916 ratio);
917 }
918 } else {
919 print_metric(config, ctxp, NULL, NULL,
920 out->force_header ?
921 (metric_name ? metric_name : name) : "", 0);
922 }
923 } else {
924 print_metric(config, ctxp, NULL, NULL,
925 out->force_header ?
926 (metric_name ? metric_name : name) : "", 0);
927 }
928
929 expr__ctx_clear(&pctx);
930}
931
932double test_generic_metric(struct metric_expr *mexp, int cpu, struct runtime_stat *st)
933{
934 struct expr_parse_ctx pctx;
935 double ratio = 0.0;
936
937 if (prepare_metric(mexp->metric_events, mexp->metric_refs, &pctx, cpu, st) < 0)
938 goto out;
939
940 if (expr__parse(&ratio, &pctx, mexp->metric_expr, 1))
941 ratio = 0.0;
942
943out:
944 expr__ctx_clear(&pctx);
945 return ratio;
946}
947
948void perf_stat__print_shadow_stats(struct perf_stat_config *config,
949 struct evsel *evsel,
950 double avg, int cpu,
951 struct perf_stat_output_ctx *out,
952 struct rblist *metric_events,
953 struct runtime_stat *st)
954{
955 void *ctxp = out->ctx;
956 print_metric_t print_metric = out->print_metric;
957 double total, ratio = 0.0, total2;
958 const char *color = NULL;
959 struct runtime_stat_data rsd = {
960 .ctx = evsel_context(evsel),
961 .cgrp = evsel->cgrp,
962 };
963 struct metric_event *me;
964 int num = 1;
965
966 if (config->iostat_run) {
967 iostat_print_metric(config, evsel, out);
968 } else if (evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
969 total = runtime_stat_avg(st, STAT_CYCLES, cpu, &rsd);
970
971 if (total) {
972 ratio = avg / total;
973 print_metric(config, ctxp, NULL, "%7.2f ",
974 "insn per cycle", ratio);
975 } else {
976 print_metric(config, ctxp, NULL, NULL, "insn per cycle", 0);
977 }
978
979 total = runtime_stat_avg(st, STAT_STALLED_CYCLES_FRONT, cpu, &rsd);
980
981 total = max(total, runtime_stat_avg(st,
982 STAT_STALLED_CYCLES_BACK,
983 cpu, &rsd));
984
985 if (total && avg) {
986 out->new_line(config, ctxp);
987 ratio = total / avg;
988 print_metric(config, ctxp, NULL, "%7.2f ",
989 "stalled cycles per insn",
990 ratio);
991 }
992 } else if (evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES)) {
993 if (runtime_stat_n(st, STAT_BRANCHES, cpu, &rsd) != 0)
994 print_branch_misses(config, cpu, avg, out, st, &rsd);
995 else
996 print_metric(config, ctxp, NULL, NULL, "of all branches", 0);
997 } else if (
998 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
999 evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_L1D |
1000 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1001 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1002
1003 if (runtime_stat_n(st, STAT_L1_DCACHE, cpu, &rsd) != 0)
1004 print_l1_dcache_misses(config, cpu, avg, out, st, &rsd);
1005 else
1006 print_metric(config, ctxp, NULL, NULL, "of all L1-dcache accesses", 0);
1007 } else if (
1008 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1009 evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_L1I |
1010 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1011 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1012
1013 if (runtime_stat_n(st, STAT_L1_ICACHE, cpu, &rsd) != 0)
1014 print_l1_icache_misses(config, cpu, avg, out, st, &rsd);
1015 else
1016 print_metric(config, ctxp, NULL, NULL, "of all L1-icache accesses", 0);
1017 } else if (
1018 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1019 evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_DTLB |
1020 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1021 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1022
1023 if (runtime_stat_n(st, STAT_DTLB_CACHE, cpu, &rsd) != 0)
1024 print_dtlb_cache_misses(config, cpu, avg, out, st, &rsd);
1025 else
1026 print_metric(config, ctxp, NULL, NULL, "of all dTLB cache accesses", 0);
1027 } else if (
1028 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1029 evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_ITLB |
1030 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1031 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1032
1033 if (runtime_stat_n(st, STAT_ITLB_CACHE, cpu, &rsd) != 0)
1034 print_itlb_cache_misses(config, cpu, avg, out, st, &rsd);
1035 else
1036 print_metric(config, ctxp, NULL, NULL, "of all iTLB cache accesses", 0);
1037 } else if (
1038 evsel->core.attr.type == PERF_TYPE_HW_CACHE &&
1039 evsel->core.attr.config == ( PERF_COUNT_HW_CACHE_LL |
1040 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
1041 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
1042
1043 if (runtime_stat_n(st, STAT_LL_CACHE, cpu, &rsd) != 0)
1044 print_ll_cache_misses(config, cpu, avg, out, st, &rsd);
1045 else
1046 print_metric(config, ctxp, NULL, NULL, "of all LL-cache accesses", 0);
1047 } else if (evsel__match(evsel, HARDWARE, HW_CACHE_MISSES)) {
1048 total = runtime_stat_avg(st, STAT_CACHEREFS, cpu, &rsd);
1049
1050 if (total)
1051 ratio = avg * 100 / total;
1052
1053 if (runtime_stat_n(st, STAT_CACHEREFS, cpu, &rsd) != 0)
1054 print_metric(config, ctxp, NULL, "%8.3f %%",
1055 "of all cache refs", ratio);
1056 else
1057 print_metric(config, ctxp, NULL, NULL, "of all cache refs", 0);
1058 } else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {
1059 print_stalled_cycles_frontend(config, cpu, avg, out, st, &rsd);
1060 } else if (evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {
1061 print_stalled_cycles_backend(config, cpu, avg, out, st, &rsd);
1062 } else if (evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
1063 total = runtime_stat_avg(st, STAT_NSECS, cpu, &rsd);
1064
1065 if (total) {
1066 ratio = avg / total;
1067 print_metric(config, ctxp, NULL, "%8.3f", "GHz", ratio);
1068 } else {
1069 print_metric(config, ctxp, NULL, NULL, "Ghz", 0);
1070 }
1071 } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX)) {
1072 total = runtime_stat_avg(st, STAT_CYCLES, cpu, &rsd);
1073
1074 if (total)
1075 print_metric(config, ctxp, NULL,
1076 "%7.2f%%", "transactional cycles",
1077 100.0 * (avg / total));
1078 else
1079 print_metric(config, ctxp, NULL, NULL, "transactional cycles",
1080 0);
1081 } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX_CP)) {
1082 total = runtime_stat_avg(st, STAT_CYCLES, cpu, &rsd);
1083 total2 = runtime_stat_avg(st, STAT_CYCLES_IN_TX, cpu, &rsd);
1084
1085 if (total2 < avg)
1086 total2 = avg;
1087 if (total)
1088 print_metric(config, ctxp, NULL, "%7.2f%%", "aborted cycles",
1089 100.0 * ((total2-avg) / total));
1090 else
1091 print_metric(config, ctxp, NULL, NULL, "aborted cycles", 0);
1092 } else if (perf_stat_evsel__is(evsel, TRANSACTION_START)) {
1093 total = runtime_stat_avg(st, STAT_CYCLES_IN_TX, cpu, &rsd);
1094
1095 if (avg)
1096 ratio = total / avg;
1097
1098 if (runtime_stat_n(st, STAT_CYCLES_IN_TX, cpu, &rsd) != 0)
1099 print_metric(config, ctxp, NULL, "%8.0f",
1100 "cycles / transaction", ratio);
1101 else
1102 print_metric(config, ctxp, NULL, NULL, "cycles / transaction",
1103 0);
1104 } else if (perf_stat_evsel__is(evsel, ELISION_START)) {
1105 total = runtime_stat_avg(st, STAT_CYCLES_IN_TX, cpu, &rsd);
1106
1107 if (avg)
1108 ratio = total / avg;
1109
1110 print_metric(config, ctxp, NULL, "%8.0f", "cycles / elision", ratio);
1111 } else if (evsel__is_clock(evsel)) {
1112 if ((ratio = avg_stats(&walltime_nsecs_stats)) != 0)
1113 print_metric(config, ctxp, NULL, "%8.3f", "CPUs utilized",
1114 avg / (ratio * evsel->scale));
1115 else
1116 print_metric(config, ctxp, NULL, NULL, "CPUs utilized", 0);
1117 } else if (perf_stat_evsel__is(evsel, TOPDOWN_FETCH_BUBBLES)) {
1118 double fe_bound = td_fe_bound(cpu, st, &rsd);
1119
1120 if (fe_bound > 0.2)
1121 color = PERF_COLOR_RED;
1122 print_metric(config, ctxp, color, "%8.1f%%", "frontend bound",
1123 fe_bound * 100.);
1124 } else if (perf_stat_evsel__is(evsel, TOPDOWN_SLOTS_RETIRED)) {
1125 double retiring = td_retiring(cpu, st, &rsd);
1126
1127 if (retiring > 0.7)
1128 color = PERF_COLOR_GREEN;
1129 print_metric(config, ctxp, color, "%8.1f%%", "retiring",
1130 retiring * 100.);
1131 } else if (perf_stat_evsel__is(evsel, TOPDOWN_RECOVERY_BUBBLES)) {
1132 double bad_spec = td_bad_spec(cpu, st, &rsd);
1133
1134 if (bad_spec > 0.1)
1135 color = PERF_COLOR_RED;
1136 print_metric(config, ctxp, color, "%8.1f%%", "bad speculation",
1137 bad_spec * 100.);
1138 } else if (perf_stat_evsel__is(evsel, TOPDOWN_SLOTS_ISSUED)) {
1139 double be_bound = td_be_bound(cpu, st, &rsd);
1140 const char *name = "backend bound";
1141 static int have_recovery_bubbles = -1;
1142
1143 /* In case the CPU does not support topdown-recovery-bubbles */
1144 if (have_recovery_bubbles < 0)
1145 have_recovery_bubbles = pmu_have_event("cpu",
1146 "topdown-recovery-bubbles");
1147 if (!have_recovery_bubbles)
1148 name = "backend bound/bad spec";
1149
1150 if (be_bound > 0.2)
1151 color = PERF_COLOR_RED;
1152 if (td_total_slots(cpu, st, &rsd) > 0)
1153 print_metric(config, ctxp, color, "%8.1f%%", name,
1154 be_bound * 100.);
1155 else
1156 print_metric(config, ctxp, NULL, NULL, name, 0);
1157 } else if (perf_stat_evsel__is(evsel, TOPDOWN_RETIRING) &&
1158 full_td(cpu, st, &rsd)) {
1159 double retiring = td_metric_ratio(cpu,
1160 STAT_TOPDOWN_RETIRING, st,
1161 &rsd);
1162 if (retiring > 0.7)
1163 color = PERF_COLOR_GREEN;
1164 print_metric(config, ctxp, color, "%8.1f%%", "retiring",
1165 retiring * 100.);
1166 } else if (perf_stat_evsel__is(evsel, TOPDOWN_FE_BOUND) &&
1167 full_td(cpu, st, &rsd)) {
1168 double fe_bound = td_metric_ratio(cpu,
1169 STAT_TOPDOWN_FE_BOUND, st,
1170 &rsd);
1171 if (fe_bound > 0.2)
1172 color = PERF_COLOR_RED;
1173 print_metric(config, ctxp, color, "%8.1f%%", "frontend bound",
1174 fe_bound * 100.);
1175 } else if (perf_stat_evsel__is(evsel, TOPDOWN_BE_BOUND) &&
1176 full_td(cpu, st, &rsd)) {
1177 double be_bound = td_metric_ratio(cpu,
1178 STAT_TOPDOWN_BE_BOUND, st,
1179 &rsd);
1180 if (be_bound > 0.2)
1181 color = PERF_COLOR_RED;
1182 print_metric(config, ctxp, color, "%8.1f%%", "backend bound",
1183 be_bound * 100.);
1184 } else if (perf_stat_evsel__is(evsel, TOPDOWN_BAD_SPEC) &&
1185 full_td(cpu, st, &rsd)) {
1186 double bad_spec = td_metric_ratio(cpu,
1187 STAT_TOPDOWN_BAD_SPEC, st,
1188 &rsd);
1189 if (bad_spec > 0.1)
1190 color = PERF_COLOR_RED;
1191 print_metric(config, ctxp, color, "%8.1f%%", "bad speculation",
1192 bad_spec * 100.);
1193 } else if (perf_stat_evsel__is(evsel, TOPDOWN_HEAVY_OPS) &&
1194 full_td(cpu, st, &rsd) && (config->topdown_level > 1)) {
1195 double retiring = td_metric_ratio(cpu,
1196 STAT_TOPDOWN_RETIRING, st,
1197 &rsd);
1198 double heavy_ops = td_metric_ratio(cpu,
1199 STAT_TOPDOWN_HEAVY_OPS, st,
1200 &rsd);
1201 double light_ops = retiring - heavy_ops;
1202
1203 if (retiring > 0.7 && heavy_ops > 0.1)
1204 color = PERF_COLOR_GREEN;
1205 print_metric(config, ctxp, color, "%8.1f%%", "heavy operations",
1206 heavy_ops * 100.);
1207 if (retiring > 0.7 && light_ops > 0.6)
1208 color = PERF_COLOR_GREEN;
1209 else
1210 color = NULL;
1211 print_metric(config, ctxp, color, "%8.1f%%", "light operations",
1212 light_ops * 100.);
1213 } else if (perf_stat_evsel__is(evsel, TOPDOWN_BR_MISPREDICT) &&
1214 full_td(cpu, st, &rsd) && (config->topdown_level > 1)) {
1215 double bad_spec = td_metric_ratio(cpu,
1216 STAT_TOPDOWN_BAD_SPEC, st,
1217 &rsd);
1218 double br_mis = td_metric_ratio(cpu,
1219 STAT_TOPDOWN_BR_MISPREDICT, st,
1220 &rsd);
1221 double m_clears = bad_spec - br_mis;
1222
1223 if (bad_spec > 0.1 && br_mis > 0.05)
1224 color = PERF_COLOR_RED;
1225 print_metric(config, ctxp, color, "%8.1f%%", "branch mispredict",
1226 br_mis * 100.);
1227 if (bad_spec > 0.1 && m_clears > 0.05)
1228 color = PERF_COLOR_RED;
1229 else
1230 color = NULL;
1231 print_metric(config, ctxp, color, "%8.1f%%", "machine clears",
1232 m_clears * 100.);
1233 } else if (perf_stat_evsel__is(evsel, TOPDOWN_FETCH_LAT) &&
1234 full_td(cpu, st, &rsd) && (config->topdown_level > 1)) {
1235 double fe_bound = td_metric_ratio(cpu,
1236 STAT_TOPDOWN_FE_BOUND, st,
1237 &rsd);
1238 double fetch_lat = td_metric_ratio(cpu,
1239 STAT_TOPDOWN_FETCH_LAT, st,
1240 &rsd);
1241 double fetch_bw = fe_bound - fetch_lat;
1242
1243 if (fe_bound > 0.2 && fetch_lat > 0.15)
1244 color = PERF_COLOR_RED;
1245 print_metric(config, ctxp, color, "%8.1f%%", "fetch latency",
1246 fetch_lat * 100.);
1247 if (fe_bound > 0.2 && fetch_bw > 0.1)
1248 color = PERF_COLOR_RED;
1249 else
1250 color = NULL;
1251 print_metric(config, ctxp, color, "%8.1f%%", "fetch bandwidth",
1252 fetch_bw * 100.);
1253 } else if (perf_stat_evsel__is(evsel, TOPDOWN_MEM_BOUND) &&
1254 full_td(cpu, st, &rsd) && (config->topdown_level > 1)) {
1255 double be_bound = td_metric_ratio(cpu,
1256 STAT_TOPDOWN_BE_BOUND, st,
1257 &rsd);
1258 double mem_bound = td_metric_ratio(cpu,
1259 STAT_TOPDOWN_MEM_BOUND, st,
1260 &rsd);
1261 double core_bound = be_bound - mem_bound;
1262
1263 if (be_bound > 0.2 && mem_bound > 0.2)
1264 color = PERF_COLOR_RED;
1265 print_metric(config, ctxp, color, "%8.1f%%", "memory bound",
1266 mem_bound * 100.);
1267 if (be_bound > 0.2 && core_bound > 0.1)
1268 color = PERF_COLOR_RED;
1269 else
1270 color = NULL;
1271 print_metric(config, ctxp, color, "%8.1f%%", "Core bound",
1272 core_bound * 100.);
1273 } else if (evsel->metric_expr) {
1274 generic_metric(config, evsel->metric_expr, evsel->metric_events, NULL,
1275 evsel->name, evsel->metric_name, NULL, 1, cpu, out, st);
1276 } else if (runtime_stat_n(st, STAT_NSECS, cpu, &rsd) != 0) {
1277 char unit = ' ';
1278 char unit_buf[10] = "/sec";
1279
1280 total = runtime_stat_avg(st, STAT_NSECS, cpu, &rsd);
1281 if (total)
1282 ratio = convert_unit_double(1000000000.0 * avg / total, &unit);
1283
1284 if (unit != ' ')
1285 snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
1286 print_metric(config, ctxp, NULL, "%8.3f", unit_buf, ratio);
1287 } else if (perf_stat_evsel__is(evsel, SMI_NUM)) {
1288 print_smi_cost(config, cpu, out, st, &rsd);
1289 } else {
1290 num = 0;
1291 }
1292
1293 if ((me = metricgroup__lookup(metric_events, evsel, false)) != NULL) {
1294 struct metric_expr *mexp;
1295
1296 list_for_each_entry (mexp, &me->head, nd) {
1297 if (num++ > 0)
1298 out->new_line(config, ctxp);
1299 generic_metric(config, mexp->metric_expr, mexp->metric_events,
1300 mexp->metric_refs, evsel->name, mexp->metric_name,
1301 mexp->metric_unit, mexp->runtime, cpu, out, st);
1302 }
1303 }
1304 if (num == 0)
1305 print_metric(config, ctxp, NULL, NULL, NULL, 0);
1306}