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}