summaryrefslogtreecommitdiff
path: root/tools/perf/util/block-info.c
blob: 04068d48683f6800d45c41d3ec006826a51906fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
// SPDX-License-Identifier: GPL-2.0
#include <stdlib.h>
#include <string.h>
#include <linux/zalloc.h>
#include "block-info.h"
#include "sort.h"
#include "annotate.h"
#include "symbol.h"
#include "dso.h"
#include "map.h"
#include "srcline.h"
#include "evlist.h"
#include "hist.h"
#include "ui/browsers/hists.h"

static struct block_header_column {
	const char *name;
	int width;
} block_columns[PERF_HPP_REPORT__BLOCK_MAX_INDEX] = {
	[PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT] = {
		.name = "Sampled Cycles%",
		.width = 15,
	},
	[PERF_HPP_REPORT__BLOCK_LBR_CYCLES] = {
		.name = "Sampled Cycles",
		.width = 14,
	},
	[PERF_HPP_REPORT__BLOCK_CYCLES_PCT] = {
		.name = "Avg Cycles%",
		.width = 11,
	},
	[PERF_HPP_REPORT__BLOCK_AVG_CYCLES] = {
		.name = "Avg Cycles",
		.width = 10,
	},
	[PERF_HPP_REPORT__BLOCK_RANGE] = {
		.name = "[Program Block Range]",
		.width = 70,
	},
	[PERF_HPP_REPORT__BLOCK_DSO] = {
		.name = "Shared Object",
		.width = 20,
	}
};

struct block_info *block_info__new(void)
{
	return zalloc(sizeof(struct block_info));
}

void block_info__delete(struct block_info *bi)
{
	free(bi);
}

int64_t __block_info__cmp(struct hist_entry *left, struct hist_entry *right)
{
	struct block_info *bi_l = left->block_info;
	struct block_info *bi_r = right->block_info;
	int cmp;

	if (!bi_l->sym || !bi_r->sym) {
		if (!bi_l->sym && !bi_r->sym)
			return -1;
		else if (!bi_l->sym)
			return -1;
		else
			return 1;
	}

	cmp = strcmp(bi_l->sym->name, bi_r->sym->name);
	if (cmp)
		return cmp;

	if (bi_l->start != bi_r->start)
		return (int64_t)(bi_r->start - bi_l->start);

	return (int64_t)(bi_r->end - bi_l->end);
}

int64_t block_info__cmp(struct perf_hpp_fmt *fmt __maybe_unused,
			struct hist_entry *left, struct hist_entry *right)
{
	return __block_info__cmp(left, right);
}

static void init_block_info(struct block_info *bi, struct symbol *sym,
			    struct cyc_hist *ch, int offset,
			    u64 total_cycles)
{
	bi->sym = sym;
	bi->start = ch->start;
	bi->end = offset;
	bi->cycles = ch->cycles;
	bi->cycles_aggr = ch->cycles_aggr;
	bi->num = ch->num;
	bi->num_aggr = ch->num_aggr;
	bi->total_cycles = total_cycles;

	memcpy(bi->cycles_spark, ch->cycles_spark,
	       NUM_SPARKS * sizeof(u64));
}

int block_info__process_sym(struct hist_entry *he, struct block_hist *bh,
			    u64 *block_cycles_aggr, u64 total_cycles)
{
	struct annotation *notes;
	struct cyc_hist *ch;
	static struct addr_location al;
	u64 cycles = 0;

	if (!he->ms.map || !he->ms.sym)
		return 0;

	memset(&al, 0, sizeof(al));
	al.map = he->ms.map;
	al.sym = he->ms.sym;

	notes = symbol__annotation(he->ms.sym);
	if (!notes || !notes->branch || !notes->branch->cycles_hist)
		return 0;
	ch = notes->branch->cycles_hist;
	for (unsigned int i = 0; i < symbol__size(he->ms.sym); i++) {
		if (ch[i].num_aggr) {
			struct block_info *bi;
			struct hist_entry *he_block;

			bi = block_info__new();
			if (!bi)
				return -1;

			init_block_info(bi, he->ms.sym, &ch[i], i,
					total_cycles);
			cycles += bi->cycles_aggr / bi->num_aggr;

			he_block = hists__add_entry_block(&bh->block_hists,
							  &al, bi);
			if (!he_block) {
				block_info__delete(bi);
				return -1;
			}
		}
	}

	if (block_cycles_aggr)
		*block_cycles_aggr += cycles;

	return 0;
}

static int block_column_header(struct perf_hpp_fmt *fmt,
			       struct perf_hpp *hpp,
			       struct hists *hists __maybe_unused,
			       int line __maybe_unused,
			       int *span __maybe_unused)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);

	return scnprintf(hpp->buf, hpp->size, "%*s", block_fmt->width,
			 block_fmt->header);
}

static int block_column_width(struct perf_hpp_fmt *fmt,
			      struct perf_hpp *hpp __maybe_unused,
			      struct hists *hists __maybe_unused)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);

	return block_fmt->width;
}

static int color_pct(struct perf_hpp *hpp, int width, double pct)
{
#ifdef HAVE_SLANG_SUPPORT
	if (use_browser) {
		return __hpp__slsmg_color_printf(hpp, "%*.2f%%",
						 width - 1, pct);
	}
#endif
	return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, pct);
}

static int block_total_cycles_pct_entry(struct perf_hpp_fmt *fmt,
					struct perf_hpp *hpp,
					struct hist_entry *he)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct block_info *bi = he->block_info;
	double ratio = 0.0;

	if (block_fmt->total_cycles)
		ratio = (double)bi->cycles_aggr / (double)block_fmt->total_cycles;

	return color_pct(hpp, block_fmt->width, 100.0 * ratio);
}

static int64_t block_total_cycles_pct_sort(struct perf_hpp_fmt *fmt,
					   struct hist_entry *left,
					   struct hist_entry *right)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct block_info *bi_l = left->block_info;
	struct block_info *bi_r = right->block_info;
	double l, r;

	if (block_fmt->total_cycles) {
		l = ((double)bi_l->cycles_aggr /
			(double)block_fmt->total_cycles) * 100000.0;
		r = ((double)bi_r->cycles_aggr /
			(double)block_fmt->total_cycles) * 100000.0;
		return (int64_t)l - (int64_t)r;
	}

	return 0;
}

static void cycles_string(u64 cycles, char *buf, int size)
{
	if (cycles >= 1000000)
		scnprintf(buf, size, "%.1fM", (double)cycles / 1000000.0);
	else if (cycles >= 1000)
		scnprintf(buf, size, "%.1fK", (double)cycles / 1000.0);
	else
		scnprintf(buf, size, "%1d", cycles);
}

static int block_cycles_lbr_entry(struct perf_hpp_fmt *fmt,
				  struct perf_hpp *hpp, struct hist_entry *he)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct block_info *bi = he->block_info;
	char cycles_buf[16];

	cycles_string(bi->cycles_aggr, cycles_buf, sizeof(cycles_buf));

	return scnprintf(hpp->buf, hpp->size, "%*s", block_fmt->width,
			 cycles_buf);
}

static int block_cycles_pct_entry(struct perf_hpp_fmt *fmt,
				  struct perf_hpp *hpp, struct hist_entry *he)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct block_info *bi = he->block_info;
	double ratio = 0.0;
	u64 avg;

	if (block_fmt->block_cycles && bi->num_aggr) {
		avg = bi->cycles_aggr / bi->num_aggr;
		ratio = (double)avg / (double)block_fmt->block_cycles;
	}

	return color_pct(hpp, block_fmt->width, 100.0 * ratio);
}

static int block_avg_cycles_entry(struct perf_hpp_fmt *fmt,
				  struct perf_hpp *hpp,
				  struct hist_entry *he)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct block_info *bi = he->block_info;
	char cycles_buf[16];

	cycles_string(bi->cycles_aggr / bi->num_aggr, cycles_buf,
		      sizeof(cycles_buf));

	return scnprintf(hpp->buf, hpp->size, "%*s", block_fmt->width,
			 cycles_buf);
}

static int block_range_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
			     struct hist_entry *he)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct block_info *bi = he->block_info;
	char buf[128];
	char *start_line, *end_line;

	symbol_conf.disable_add2line_warn = true;

	start_line = map__srcline(he->ms.map, bi->sym->start + bi->start,
				  he->ms.sym);

	end_line = map__srcline(he->ms.map, bi->sym->start + bi->end,
				he->ms.sym);

	if (start_line != SRCLINE_UNKNOWN &&
	    end_line != SRCLINE_UNKNOWN) {
		scnprintf(buf, sizeof(buf), "[%s -> %s]",
			  start_line, end_line);
	} else {
		scnprintf(buf, sizeof(buf), "[%7lx -> %7lx]",
			  bi->start, bi->end);
	}

	zfree_srcline(&start_line);
	zfree_srcline(&end_line);

	return scnprintf(hpp->buf, hpp->size, "%*s", block_fmt->width, buf);
}

static int block_dso_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
			   struct hist_entry *he)
{
	struct block_fmt *block_fmt = container_of(fmt, struct block_fmt, fmt);
	struct map *map = he->ms.map;

	if (map && map__dso(map)) {
		return scnprintf(hpp->buf, hpp->size, "%*s", block_fmt->width,
				 dso__short_name(map__dso(map)));
	}

	return scnprintf(hpp->buf, hpp->size, "%*s", block_fmt->width,
			 "[unknown]");
}

static void init_block_header(struct block_fmt *block_fmt)
{
	struct perf_hpp_fmt *fmt = &block_fmt->fmt;

	BUG_ON(block_fmt->idx >= PERF_HPP_REPORT__BLOCK_MAX_INDEX);

	block_fmt->header = block_columns[block_fmt->idx].name;
	block_fmt->width = block_columns[block_fmt->idx].width;

	fmt->header = block_column_header;
	fmt->width = block_column_width;
}

static void hpp_register(struct block_fmt *block_fmt, int idx,
			 struct perf_hpp_list *hpp_list)
{
	struct perf_hpp_fmt *fmt = &block_fmt->fmt;

	block_fmt->idx = idx;
	INIT_LIST_HEAD(&fmt->list);
	INIT_LIST_HEAD(&fmt->sort_list);

	switch (idx) {
	case PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT:
		fmt->color = block_total_cycles_pct_entry;
		fmt->cmp = block_info__cmp;
		fmt->sort = block_total_cycles_pct_sort;
		break;
	case PERF_HPP_REPORT__BLOCK_LBR_CYCLES:
		fmt->entry = block_cycles_lbr_entry;
		break;
	case PERF_HPP_REPORT__BLOCK_CYCLES_PCT:
		fmt->color = block_cycles_pct_entry;
		break;
	case PERF_HPP_REPORT__BLOCK_AVG_CYCLES:
		fmt->entry = block_avg_cycles_entry;
		break;
	case PERF_HPP_REPORT__BLOCK_RANGE:
		fmt->entry = block_range_entry;
		break;
	case PERF_HPP_REPORT__BLOCK_DSO:
		fmt->entry = block_dso_entry;
		break;
	default:
		return;
	}

	init_block_header(block_fmt);
	perf_hpp_list__column_register(hpp_list, fmt);
}

static void register_block_columns(struct perf_hpp_list *hpp_list,
				   struct block_fmt *block_fmts,
				   int *block_hpps, int nr_hpps)
{
	for (int i = 0; i < nr_hpps; i++)
		hpp_register(&block_fmts[i], block_hpps[i], hpp_list);
}

static void init_block_hist(struct block_hist *bh, struct block_fmt *block_fmts,
			    int *block_hpps, int nr_hpps)
{
	__hists__init(&bh->block_hists, &bh->block_list);
	perf_hpp_list__init(&bh->block_list);
	bh->block_list.nr_header_lines = 1;

	register_block_columns(&bh->block_list, block_fmts,
			       block_hpps, nr_hpps);

	/* Sort by the first fmt */
	perf_hpp_list__register_sort_field(&bh->block_list, &block_fmts[0].fmt);
}

static int process_block_report(struct hists *hists,
				struct block_report *block_report,
				u64 total_cycles, int *block_hpps,
				int nr_hpps)
{
	struct rb_node *next = rb_first_cached(&hists->entries);
	struct block_hist *bh = &block_report->hist;
	struct hist_entry *he;

	if (nr_hpps > PERF_HPP_REPORT__BLOCK_MAX_INDEX)
		return -1;

	block_report->nr_fmts = nr_hpps;
	init_block_hist(bh, block_report->fmts, block_hpps, nr_hpps);

	while (next) {
		he = rb_entry(next, struct hist_entry, rb_node);
		block_info__process_sym(he, bh, &block_report->cycles,
					total_cycles);
		next = rb_next(&he->rb_node);
	}

	for (int i = 0; i < nr_hpps; i++) {
		block_report->fmts[i].total_cycles = total_cycles;
		block_report->fmts[i].block_cycles = block_report->cycles;
	}

	hists__output_resort(&bh->block_hists, NULL);
	return 0;
}

struct block_report *block_info__create_report(struct evlist *evlist,
					       u64 total_cycles,
					       int *block_hpps, int nr_hpps,
					       int *nr_reps)
{
	struct block_report *block_reports;
	int nr_hists = evlist->core.nr_entries, i = 0;
	struct evsel *pos;

	block_reports = calloc(nr_hists, sizeof(struct block_report));
	if (!block_reports)
		return NULL;

	evlist__for_each_entry(evlist, pos) {
		struct hists *hists = evsel__hists(pos);

		process_block_report(hists, &block_reports[i], total_cycles,
				     block_hpps, nr_hpps);
		i++;
	}

	*nr_reps = nr_hists;
	return block_reports;
}

void block_info__free_report(struct block_report *reps, int nr_reps)
{
	for (int i = 0; i < nr_reps; i++)
		hists__delete_entries(&reps[i].hist.block_hists);

	free(reps);
}

int report__browse_block_hists(struct block_hist *bh, float min_percent,
			       struct evsel *evsel, struct perf_env *env)
{
	int ret;

	switch (use_browser) {
	case 0:
		symbol_conf.report_individual_block = true;
		hists__fprintf(&bh->block_hists, true, 0, 0, min_percent,
			       stdout, true);
		return 0;
	case 1:
		symbol_conf.report_individual_block = true;
		ret = block_hists_tui_browse(bh, evsel, min_percent, env);
		return ret;
	default:
		return -1;
	}

	return 0;
}

float block_info__total_cycles_percent(struct hist_entry *he)
{
	struct block_info *bi = he->block_info;

	if (bi->total_cycles)
		return bi->cycles * 100.0 / bi->total_cycles;

	return 0.0;
}