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
19 struct stats walltime_nsecs_stats;
20 struct rusage_stats ru_stats;
21
22 enum {
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
31 enum 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
evsel_context(const struct evsel * evsel)55 static 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
perf_stat__reset_shadow_stats(void)73 void 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
evsel__stat_type(const struct evsel * evsel)79 static 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
get_ratio_color(const double ratios[3],double val)139 static 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
find_stat(const struct evsel * evsel,int aggr_idx,enum stat_type type)153 static 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
print_ratio(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double numerator,struct perf_stat_output_ctx * out,enum stat_type denominator_type,const double color_ratios[3],const char * unit)187 static 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
print_stalled_cycles_front(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double stalled,struct perf_stat_output_ctx * out)204 static 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
print_stalled_cycles_back(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double stalled,struct perf_stat_output_ctx * out)215 static 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
print_branch_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)226 static 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
print_l1d_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)237 static 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
print_l1i_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)248 static 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
print_ll_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)259 static 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
print_dtlb_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)270 static 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
print_itlb_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)281 static 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
print_cache_miss(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double misses,struct perf_stat_output_ctx * out)292 static 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
print_instructions(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double instructions,struct perf_stat_output_ctx * out)303 static 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
print_cycles(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx,double cycles,struct perf_stat_output_ctx * out)327 static 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
print_nsecs(struct perf_stat_config * config,const struct evsel * evsel,int aggr_idx __maybe_unused,double nsecs,struct perf_stat_output_ctx * out)342 static 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
prepare_metric(struct evsel ** metric_events,struct metric_ref * metric_refs,struct expr_parse_ctx * pctx,int aggr_idx)358 static 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 val = aggr->counts.val;
418 source_count = evsel__source_count(metric_events[i]);
419 }
420 }
421 n = strdup(evsel__metric_id(metric_events[i]));
422 if (!n)
423 return -ENOMEM;
424
425 expr__add_id_val_source_count(pctx, n, val, source_count);
426 }
427
428 for (int j = 0; metric_refs && metric_refs[j].metric_name; j++) {
429 int ret = expr__add_ref(pctx, &metric_refs[j]);
430
431 if (ret)
432 return ret;
433 }
434
435 return i;
436 }
437
generic_metric(struct perf_stat_config * config,const char * metric_expr,const char * metric_threshold,struct evsel ** metric_events,struct metric_ref * metric_refs,char * name,const char * metric_name,const char * metric_unit,int runtime,int aggr_idx,struct perf_stat_output_ctx * out)438 static void generic_metric(struct perf_stat_config *config,
439 const char *metric_expr,
440 const char *metric_threshold,
441 struct evsel **metric_events,
442 struct metric_ref *metric_refs,
443 char *name,
444 const char *metric_name,
445 const char *metric_unit,
446 int runtime,
447 int aggr_idx,
448 struct perf_stat_output_ctx *out)
449 {
450 print_metric_t print_metric = out->print_metric;
451 struct expr_parse_ctx *pctx;
452 double ratio, scale, threshold;
453 int i;
454 void *ctxp = out->ctx;
455 const char *color = NULL;
456
457 pctx = expr__ctx_new();
458 if (!pctx)
459 return;
460
461 if (config->user_requested_cpu_list)
462 pctx->sctx.user_requested_cpu_list = strdup(config->user_requested_cpu_list);
463 pctx->sctx.runtime = runtime;
464 pctx->sctx.system_wide = config->system_wide;
465 i = prepare_metric(metric_events, metric_refs, pctx, aggr_idx);
466 if (i < 0) {
467 expr__ctx_free(pctx);
468 return;
469 }
470 if (!metric_events[i]) {
471 if (expr__parse(&ratio, pctx, metric_expr) == 0) {
472 char *unit;
473 char metric_bf[64];
474
475 if (metric_threshold &&
476 expr__parse(&threshold, pctx, metric_threshold) == 0 &&
477 !isnan(threshold)) {
478 color = fpclassify(threshold) == FP_ZERO
479 ? PERF_COLOR_GREEN : PERF_COLOR_RED;
480 }
481
482 if (metric_unit && metric_name) {
483 if (perf_pmu__convert_scale(metric_unit,
484 &unit, &scale) >= 0) {
485 ratio *= scale;
486 }
487 if (strstr(metric_expr, "?"))
488 scnprintf(metric_bf, sizeof(metric_bf),
489 "%s %s_%d", unit, metric_name, runtime);
490 else
491 scnprintf(metric_bf, sizeof(metric_bf),
492 "%s %s", unit, metric_name);
493
494 print_metric(config, ctxp, color, "%8.1f",
495 metric_bf, ratio);
496 } else {
497 print_metric(config, ctxp, color, "%8.2f",
498 metric_name ?
499 metric_name :
500 out->force_header ? name : "",
501 ratio);
502 }
503 } else {
504 print_metric(config, ctxp, color, /*unit=*/NULL,
505 out->force_header ?
506 (metric_name ? metric_name : name) : "", 0);
507 }
508 } else {
509 print_metric(config, ctxp, color, /*unit=*/NULL,
510 out->force_header ?
511 (metric_name ? metric_name : name) : "", 0);
512 }
513
514 expr__ctx_free(pctx);
515 }
516
test_generic_metric(struct metric_expr * mexp,int aggr_idx)517 double test_generic_metric(struct metric_expr *mexp, int aggr_idx)
518 {
519 struct expr_parse_ctx *pctx;
520 double ratio = 0.0;
521
522 pctx = expr__ctx_new();
523 if (!pctx)
524 return NAN;
525
526 if (prepare_metric(mexp->metric_events, mexp->metric_refs, pctx, aggr_idx) < 0)
527 goto out;
528
529 if (expr__parse(&ratio, pctx, mexp->metric_expr))
530 ratio = 0.0;
531
532 out:
533 expr__ctx_free(pctx);
534 return ratio;
535 }
536
perf_stat__print_metricgroup_header(struct perf_stat_config * config,struct evsel * evsel,void * ctxp,const char * name,struct perf_stat_output_ctx * out)537 static void perf_stat__print_metricgroup_header(struct perf_stat_config *config,
538 struct evsel *evsel,
539 void *ctxp,
540 const char *name,
541 struct perf_stat_output_ctx *out)
542 {
543 bool need_full_name = perf_pmus__num_core_pmus() > 1;
544 static const char *last_name;
545 static const char *last_pmu;
546 char full_name[64];
547
548 /*
549 * A metricgroup may have several metric events,
550 * e.g.,TopdownL1 on e-core of ADL.
551 * The name has been output by the first metric
552 * event. Only align with other metics from
553 * different metric events.
554 */
555 if (last_name && !strcmp(last_name, name)) {
556 if (!need_full_name || !strcmp(last_pmu, evsel->pmu_name)) {
557 out->print_metricgroup_header(config, ctxp, NULL);
558 return;
559 }
560 }
561
562 if (need_full_name)
563 scnprintf(full_name, sizeof(full_name), "%s (%s)", name, evsel->pmu_name);
564 else
565 scnprintf(full_name, sizeof(full_name), "%s", name);
566
567 out->print_metricgroup_header(config, ctxp, full_name);
568
569 last_name = name;
570 last_pmu = evsel->pmu_name;
571 }
572
573 /**
574 * perf_stat__print_shadow_stats_metricgroup - Print out metrics associated with the evsel
575 * For the non-default, all metrics associated
576 * with the evsel are printed.
577 * For the default mode, only the metrics from
578 * the same metricgroup and the name of the
579 * metricgroup are printed. To print the metrics
580 * from the next metricgroup (if available),
581 * invoke the function with correspoinding
582 * metric_expr.
583 */
perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config * config,struct evsel * evsel,int aggr_idx,int * num,void * from,struct perf_stat_output_ctx * out,struct rblist * metric_events)584 void *perf_stat__print_shadow_stats_metricgroup(struct perf_stat_config *config,
585 struct evsel *evsel,
586 int aggr_idx,
587 int *num,
588 void *from,
589 struct perf_stat_output_ctx *out,
590 struct rblist *metric_events)
591 {
592 struct metric_event *me;
593 struct metric_expr *mexp = from;
594 void *ctxp = out->ctx;
595 bool header_printed = false;
596 const char *name = NULL;
597
598 me = metricgroup__lookup(metric_events, evsel, false);
599 if (me == NULL)
600 return NULL;
601
602 if (!mexp)
603 mexp = list_first_entry(&me->head, typeof(*mexp), nd);
604
605 list_for_each_entry_from(mexp, &me->head, nd) {
606 /* Print the display name of the Default metricgroup */
607 if (!config->metric_only && me->is_default) {
608 if (!name)
609 name = mexp->default_metricgroup_name;
610 /*
611 * Two or more metricgroup may share the same metric
612 * event, e.g., TopdownL1 and TopdownL2 on SPR.
613 * Return and print the prefix, e.g., noise, running
614 * for the next metricgroup.
615 */
616 if (strcmp(name, mexp->default_metricgroup_name))
617 return (void *)mexp;
618 /* Only print the name of the metricgroup once */
619 if (!header_printed) {
620 header_printed = true;
621 perf_stat__print_metricgroup_header(config, evsel, ctxp,
622 name, out);
623 }
624 }
625
626 if ((*num)++ > 0)
627 out->new_line(config, ctxp);
628 generic_metric(config, mexp->metric_expr, mexp->metric_threshold,
629 mexp->metric_events, mexp->metric_refs, evsel->name,
630 mexp->metric_name, mexp->metric_unit, mexp->runtime,
631 aggr_idx, out);
632 }
633
634 return NULL;
635 }
636
perf_stat__print_shadow_stats(struct perf_stat_config * config,struct evsel * evsel,double avg,int aggr_idx,struct perf_stat_output_ctx * out,struct rblist * metric_events)637 void perf_stat__print_shadow_stats(struct perf_stat_config *config,
638 struct evsel *evsel,
639 double avg, int aggr_idx,
640 struct perf_stat_output_ctx *out,
641 struct rblist *metric_events)
642 {
643 typedef void (*stat_print_function_t)(struct perf_stat_config *config,
644 const struct evsel *evsel,
645 int aggr_idx, double misses,
646 struct perf_stat_output_ctx *out);
647 static const stat_print_function_t stat_print_function[STAT_MAX] = {
648 [STAT_INSTRUCTIONS] = print_instructions,
649 [STAT_BRANCH_MISS] = print_branch_miss,
650 [STAT_L1D_MISS] = print_l1d_miss,
651 [STAT_L1I_MISS] = print_l1i_miss,
652 [STAT_DTLB_MISS] = print_dtlb_miss,
653 [STAT_ITLB_MISS] = print_itlb_miss,
654 [STAT_LL_MISS] = print_ll_miss,
655 [STAT_CACHE_MISSES] = print_cache_miss,
656 [STAT_STALLED_CYCLES_FRONT] = print_stalled_cycles_front,
657 [STAT_STALLED_CYCLES_BACK] = print_stalled_cycles_back,
658 [STAT_CYCLES] = print_cycles,
659 [STAT_NSECS] = print_nsecs,
660 };
661 print_metric_t print_metric = out->print_metric;
662 void *ctxp = out->ctx;
663 int num = 1;
664
665 if (config->iostat_run) {
666 iostat_print_metric(config, evsel, out);
667 } else {
668 stat_print_function_t fn = stat_print_function[evsel__stat_type(evsel)];
669
670 if (fn)
671 fn(config, evsel, aggr_idx, avg, out);
672 else {
673 double nsecs = find_stat(evsel, aggr_idx, STAT_NSECS);
674
675 if (nsecs) {
676 char unit = ' ';
677 char unit_buf[10] = "/sec";
678 double ratio = convert_unit_double(1000000000.0 * avg / nsecs,
679 &unit);
680
681 if (unit != ' ')
682 snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
683 print_metric(config, ctxp, NULL, "%8.3f", unit_buf, ratio);
684 } else
685 num = 0;
686 }
687 }
688
689 perf_stat__print_shadow_stats_metricgroup(config, evsel, aggr_idx,
690 &num, NULL, out, metric_events);
691
692 if (num == 0)
693 print_metric(config, ctxp, NULL, NULL, NULL, 0);
694 }
695
696 /**
697 * perf_stat__skip_metric_event - Skip the evsel in the Default metricgroup,
698 * if it's not running or not the metric event.
699 */
perf_stat__skip_metric_event(struct evsel * evsel,struct rblist * metric_events,u64 ena,u64 run)700 bool perf_stat__skip_metric_event(struct evsel *evsel,
701 struct rblist *metric_events,
702 u64 ena, u64 run)
703 {
704 if (!evsel->default_metricgroup)
705 return false;
706
707 if (!ena || !run)
708 return true;
709
710 return !metricgroup__lookup(metric_events, evsel, false);
711 }
712