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Linux 4.14.199
[people/arne_f/kernel.git] / tools / perf / builtin-c2c.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * This is rewrite of original c2c tool introduced in here:
4 * http://lwn.net/Articles/588866/
5 *
6 * The original tool was changed to fit in current perf state.
7 *
8 * Original authors:
9 * Don Zickus <dzickus@redhat.com>
10 * Dick Fowles <fowles@inreach.com>
11 * Joe Mario <jmario@redhat.com>
12 */
13 #include <errno.h>
14 #include <inttypes.h>
15 #include <linux/compiler.h>
16 #include <linux/kernel.h>
17 #include <linux/stringify.h>
18 #include <asm/bug.h>
19 #include <sys/param.h>
20 #include "util.h"
21 #include "debug.h"
22 #include "builtin.h"
23 #include <subcmd/parse-options.h>
24 #include "mem-events.h"
25 #include "session.h"
26 #include "hist.h"
27 #include "sort.h"
28 #include "tool.h"
29 #include "data.h"
30 #include "sort.h"
31 #include "event.h"
32 #include "evlist.h"
33 #include "evsel.h"
34 #include <asm/bug.h>
35 #include "ui/browsers/hists.h"
36 #include "evlist.h"
37 #include "thread.h"
38
39 struct c2c_hists {
40 struct hists hists;
41 struct perf_hpp_list list;
42 struct c2c_stats stats;
43 };
44
45 struct compute_stats {
46 struct stats lcl_hitm;
47 struct stats rmt_hitm;
48 struct stats load;
49 };
50
51 struct c2c_hist_entry {
52 struct c2c_hists *hists;
53 struct c2c_stats stats;
54 unsigned long *cpuset;
55 struct c2c_stats *node_stats;
56 unsigned int cacheline_idx;
57
58 struct compute_stats cstats;
59
60 /*
61 * must be at the end,
62 * because of its callchain dynamic entry
63 */
64 struct hist_entry he;
65 };
66
67 static char const *coalesce_default = "pid,iaddr";
68
69 struct perf_c2c {
70 struct perf_tool tool;
71 struct c2c_hists hists;
72
73 unsigned long **nodes;
74 int nodes_cnt;
75 int cpus_cnt;
76 int *cpu2node;
77 int node_info;
78
79 bool show_src;
80 bool show_all;
81 bool use_stdio;
82 bool stats_only;
83 bool symbol_full;
84
85 /* HITM shared clines stats */
86 struct c2c_stats hitm_stats;
87 int shared_clines;
88
89 int display;
90
91 const char *coalesce;
92 char *cl_sort;
93 char *cl_resort;
94 char *cl_output;
95 };
96
97 enum {
98 DISPLAY_LCL,
99 DISPLAY_RMT,
100 DISPLAY_TOT,
101 DISPLAY_MAX,
102 };
103
104 static const char *display_str[DISPLAY_MAX] = {
105 [DISPLAY_LCL] = "Local",
106 [DISPLAY_RMT] = "Remote",
107 [DISPLAY_TOT] = "Total",
108 };
109
110 static const struct option c2c_options[] = {
111 OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"),
112 OPT_END()
113 };
114
115 static struct perf_c2c c2c;
116
117 static void *c2c_he_zalloc(size_t size)
118 {
119 struct c2c_hist_entry *c2c_he;
120
121 c2c_he = zalloc(size + sizeof(*c2c_he));
122 if (!c2c_he)
123 return NULL;
124
125 c2c_he->cpuset = bitmap_alloc(c2c.cpus_cnt);
126 if (!c2c_he->cpuset)
127 return NULL;
128
129 c2c_he->node_stats = zalloc(c2c.nodes_cnt * sizeof(*c2c_he->node_stats));
130 if (!c2c_he->node_stats)
131 return NULL;
132
133 init_stats(&c2c_he->cstats.lcl_hitm);
134 init_stats(&c2c_he->cstats.rmt_hitm);
135 init_stats(&c2c_he->cstats.load);
136
137 return &c2c_he->he;
138 }
139
140 static void c2c_he_free(void *he)
141 {
142 struct c2c_hist_entry *c2c_he;
143
144 c2c_he = container_of(he, struct c2c_hist_entry, he);
145 if (c2c_he->hists) {
146 hists__delete_entries(&c2c_he->hists->hists);
147 free(c2c_he->hists);
148 }
149
150 free(c2c_he->cpuset);
151 free(c2c_he->node_stats);
152 free(c2c_he);
153 }
154
155 static struct hist_entry_ops c2c_entry_ops = {
156 .new = c2c_he_zalloc,
157 .free = c2c_he_free,
158 };
159
160 static int c2c_hists__init(struct c2c_hists *hists,
161 const char *sort,
162 int nr_header_lines);
163
164 static struct c2c_hists*
165 he__get_c2c_hists(struct hist_entry *he,
166 const char *sort,
167 int nr_header_lines)
168 {
169 struct c2c_hist_entry *c2c_he;
170 struct c2c_hists *hists;
171 int ret;
172
173 c2c_he = container_of(he, struct c2c_hist_entry, he);
174 if (c2c_he->hists)
175 return c2c_he->hists;
176
177 hists = c2c_he->hists = zalloc(sizeof(*hists));
178 if (!hists)
179 return NULL;
180
181 ret = c2c_hists__init(hists, sort, nr_header_lines);
182 if (ret) {
183 free(hists);
184 return NULL;
185 }
186
187 return hists;
188 }
189
190 static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he,
191 struct perf_sample *sample)
192 {
193 if (WARN_ONCE(sample->cpu == (unsigned int) -1,
194 "WARNING: no sample cpu value"))
195 return;
196
197 set_bit(sample->cpu, c2c_he->cpuset);
198 }
199
200 static void compute_stats(struct c2c_hist_entry *c2c_he,
201 struct c2c_stats *stats,
202 u64 weight)
203 {
204 struct compute_stats *cstats = &c2c_he->cstats;
205
206 if (stats->rmt_hitm)
207 update_stats(&cstats->rmt_hitm, weight);
208 else if (stats->lcl_hitm)
209 update_stats(&cstats->lcl_hitm, weight);
210 else if (stats->load)
211 update_stats(&cstats->load, weight);
212 }
213
214 static int process_sample_event(struct perf_tool *tool __maybe_unused,
215 union perf_event *event,
216 struct perf_sample *sample,
217 struct perf_evsel *evsel,
218 struct machine *machine)
219 {
220 struct c2c_hists *c2c_hists = &c2c.hists;
221 struct c2c_hist_entry *c2c_he;
222 struct c2c_stats stats = { .nr_entries = 0, };
223 struct hist_entry *he;
224 struct addr_location al;
225 struct mem_info *mi, *mi_dup;
226 int ret;
227
228 if (machine__resolve(machine, &al, sample) < 0) {
229 pr_debug("problem processing %d event, skipping it.\n",
230 event->header.type);
231 return -1;
232 }
233
234 ret = sample__resolve_callchain(sample, &callchain_cursor, NULL,
235 evsel, &al, sysctl_perf_event_max_stack);
236 if (ret)
237 goto out;
238
239 mi = sample__resolve_mem(sample, &al);
240 if (mi == NULL)
241 return -ENOMEM;
242
243 mi_dup = memdup(mi, sizeof(*mi));
244 if (!mi_dup)
245 goto free_mi;
246
247 c2c_decode_stats(&stats, mi);
248
249 he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
250 &al, NULL, NULL, mi,
251 sample, true);
252 if (he == NULL)
253 goto free_mi_dup;
254
255 c2c_he = container_of(he, struct c2c_hist_entry, he);
256 c2c_add_stats(&c2c_he->stats, &stats);
257 c2c_add_stats(&c2c_hists->stats, &stats);
258
259 c2c_he__set_cpu(c2c_he, sample);
260
261 hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
262 ret = hist_entry__append_callchain(he, sample);
263
264 if (!ret) {
265 /*
266 * There's already been warning about missing
267 * sample's cpu value. Let's account all to
268 * node 0 in this case, without any further
269 * warning.
270 *
271 * Doing node stats only for single callchain data.
272 */
273 int cpu = sample->cpu == (unsigned int) -1 ? 0 : sample->cpu;
274 int node = c2c.cpu2node[cpu];
275
276 mi = mi_dup;
277
278 mi_dup = memdup(mi, sizeof(*mi));
279 if (!mi_dup)
280 goto free_mi;
281
282 c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2);
283 if (!c2c_hists)
284 goto free_mi_dup;
285
286 he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
287 &al, NULL, NULL, mi,
288 sample, true);
289 if (he == NULL)
290 goto free_mi_dup;
291
292 c2c_he = container_of(he, struct c2c_hist_entry, he);
293 c2c_add_stats(&c2c_he->stats, &stats);
294 c2c_add_stats(&c2c_hists->stats, &stats);
295 c2c_add_stats(&c2c_he->node_stats[node], &stats);
296
297 compute_stats(c2c_he, &stats, sample->weight);
298
299 c2c_he__set_cpu(c2c_he, sample);
300
301 hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
302 ret = hist_entry__append_callchain(he, sample);
303 }
304
305 out:
306 addr_location__put(&al);
307 return ret;
308
309 free_mi_dup:
310 free(mi_dup);
311 free_mi:
312 free(mi);
313 ret = -ENOMEM;
314 goto out;
315 }
316
317 static struct perf_c2c c2c = {
318 .tool = {
319 .sample = process_sample_event,
320 .mmap = perf_event__process_mmap,
321 .mmap2 = perf_event__process_mmap2,
322 .comm = perf_event__process_comm,
323 .exit = perf_event__process_exit,
324 .fork = perf_event__process_fork,
325 .lost = perf_event__process_lost,
326 .ordered_events = true,
327 .ordering_requires_timestamps = true,
328 },
329 };
330
331 static const char * const c2c_usage[] = {
332 "perf c2c {record|report}",
333 NULL
334 };
335
336 static const char * const __usage_report[] = {
337 "perf c2c report",
338 NULL
339 };
340
341 static const char * const *report_c2c_usage = __usage_report;
342
343 #define C2C_HEADER_MAX 2
344
345 struct c2c_header {
346 struct {
347 const char *text;
348 int span;
349 } line[C2C_HEADER_MAX];
350 };
351
352 struct c2c_dimension {
353 struct c2c_header header;
354 const char *name;
355 int width;
356 struct sort_entry *se;
357
358 int64_t (*cmp)(struct perf_hpp_fmt *fmt,
359 struct hist_entry *, struct hist_entry *);
360 int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
361 struct hist_entry *he);
362 int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
363 struct hist_entry *he);
364 };
365
366 struct c2c_fmt {
367 struct perf_hpp_fmt fmt;
368 struct c2c_dimension *dim;
369 };
370
371 #define SYMBOL_WIDTH 30
372
373 static struct c2c_dimension dim_symbol;
374 static struct c2c_dimension dim_srcline;
375
376 static int symbol_width(struct hists *hists, struct sort_entry *se)
377 {
378 int width = hists__col_len(hists, se->se_width_idx);
379
380 if (!c2c.symbol_full)
381 width = MIN(width, SYMBOL_WIDTH);
382
383 return width;
384 }
385
386 static int c2c_width(struct perf_hpp_fmt *fmt,
387 struct perf_hpp *hpp __maybe_unused,
388 struct hists *hists)
389 {
390 struct c2c_fmt *c2c_fmt;
391 struct c2c_dimension *dim;
392
393 c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
394 dim = c2c_fmt->dim;
395
396 if (dim == &dim_symbol || dim == &dim_srcline)
397 return symbol_width(hists, dim->se);
398
399 return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
400 c2c_fmt->dim->width;
401 }
402
403 static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
404 struct hists *hists, int line, int *span)
405 {
406 struct perf_hpp_list *hpp_list = hists->hpp_list;
407 struct c2c_fmt *c2c_fmt;
408 struct c2c_dimension *dim;
409 const char *text = NULL;
410 int width = c2c_width(fmt, hpp, hists);
411
412 c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
413 dim = c2c_fmt->dim;
414
415 if (dim->se) {
416 text = dim->header.line[line].text;
417 /* Use the last line from sort_entry if not defined. */
418 if (!text && (line == hpp_list->nr_header_lines - 1))
419 text = dim->se->se_header;
420 } else {
421 text = dim->header.line[line].text;
422
423 if (*span) {
424 (*span)--;
425 return 0;
426 } else {
427 *span = dim->header.line[line].span;
428 }
429 }
430
431 if (text == NULL)
432 text = "";
433
434 return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
435 }
436
437 #define HEX_STR(__s, __v) \
438 ({ \
439 scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \
440 __s; \
441 })
442
443 static int64_t
444 dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
445 struct hist_entry *left, struct hist_entry *right)
446 {
447 return sort__dcacheline_cmp(left, right);
448 }
449
450 static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
451 struct hist_entry *he)
452 {
453 uint64_t addr = 0;
454 int width = c2c_width(fmt, hpp, he->hists);
455 char buf[20];
456
457 if (he->mem_info)
458 addr = cl_address(he->mem_info->daddr.addr);
459
460 return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
461 }
462
463 static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
464 struct hist_entry *he)
465 {
466 uint64_t addr = 0;
467 int width = c2c_width(fmt, hpp, he->hists);
468 char buf[20];
469
470 if (he->mem_info)
471 addr = cl_offset(he->mem_info->daddr.al_addr);
472
473 return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
474 }
475
476 static int64_t
477 offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
478 struct hist_entry *left, struct hist_entry *right)
479 {
480 uint64_t l = 0, r = 0;
481
482 if (left->mem_info)
483 l = cl_offset(left->mem_info->daddr.addr);
484 if (right->mem_info)
485 r = cl_offset(right->mem_info->daddr.addr);
486
487 return (int64_t)(r - l);
488 }
489
490 static int
491 iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
492 struct hist_entry *he)
493 {
494 uint64_t addr = 0;
495 int width = c2c_width(fmt, hpp, he->hists);
496 char buf[20];
497
498 if (he->mem_info)
499 addr = he->mem_info->iaddr.addr;
500
501 return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
502 }
503
504 static int64_t
505 iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
506 struct hist_entry *left, struct hist_entry *right)
507 {
508 return sort__iaddr_cmp(left, right);
509 }
510
511 static int
512 tot_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
513 struct hist_entry *he)
514 {
515 struct c2c_hist_entry *c2c_he;
516 int width = c2c_width(fmt, hpp, he->hists);
517 unsigned int tot_hitm;
518
519 c2c_he = container_of(he, struct c2c_hist_entry, he);
520 tot_hitm = c2c_he->stats.lcl_hitm + c2c_he->stats.rmt_hitm;
521
522 return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_hitm);
523 }
524
525 static int64_t
526 tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
527 struct hist_entry *left, struct hist_entry *right)
528 {
529 struct c2c_hist_entry *c2c_left;
530 struct c2c_hist_entry *c2c_right;
531 uint64_t tot_hitm_left;
532 uint64_t tot_hitm_right;
533
534 c2c_left = container_of(left, struct c2c_hist_entry, he);
535 c2c_right = container_of(right, struct c2c_hist_entry, he);
536
537 tot_hitm_left = c2c_left->stats.lcl_hitm + c2c_left->stats.rmt_hitm;
538 tot_hitm_right = c2c_right->stats.lcl_hitm + c2c_right->stats.rmt_hitm;
539
540 return tot_hitm_left - tot_hitm_right;
541 }
542
543 #define STAT_FN_ENTRY(__f) \
544 static int \
545 __f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, \
546 struct hist_entry *he) \
547 { \
548 struct c2c_hist_entry *c2c_he; \
549 int width = c2c_width(fmt, hpp, he->hists); \
550 \
551 c2c_he = container_of(he, struct c2c_hist_entry, he); \
552 return scnprintf(hpp->buf, hpp->size, "%*u", width, \
553 c2c_he->stats.__f); \
554 }
555
556 #define STAT_FN_CMP(__f) \
557 static int64_t \
558 __f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused, \
559 struct hist_entry *left, struct hist_entry *right) \
560 { \
561 struct c2c_hist_entry *c2c_left, *c2c_right; \
562 \
563 c2c_left = container_of(left, struct c2c_hist_entry, he); \
564 c2c_right = container_of(right, struct c2c_hist_entry, he); \
565 return (uint64_t) c2c_left->stats.__f - \
566 (uint64_t) c2c_right->stats.__f; \
567 }
568
569 #define STAT_FN(__f) \
570 STAT_FN_ENTRY(__f) \
571 STAT_FN_CMP(__f)
572
573 STAT_FN(rmt_hitm)
574 STAT_FN(lcl_hitm)
575 STAT_FN(store)
576 STAT_FN(st_l1hit)
577 STAT_FN(st_l1miss)
578 STAT_FN(ld_fbhit)
579 STAT_FN(ld_l1hit)
580 STAT_FN(ld_l2hit)
581 STAT_FN(ld_llchit)
582 STAT_FN(rmt_hit)
583
584 static uint64_t llc_miss(struct c2c_stats *stats)
585 {
586 uint64_t llcmiss;
587
588 llcmiss = stats->lcl_dram +
589 stats->rmt_dram +
590 stats->rmt_hitm +
591 stats->rmt_hit;
592
593 return llcmiss;
594 }
595
596 static int
597 ld_llcmiss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
598 struct hist_entry *he)
599 {
600 struct c2c_hist_entry *c2c_he;
601 int width = c2c_width(fmt, hpp, he->hists);
602
603 c2c_he = container_of(he, struct c2c_hist_entry, he);
604
605 return scnprintf(hpp->buf, hpp->size, "%*lu", width,
606 llc_miss(&c2c_he->stats));
607 }
608
609 static int64_t
610 ld_llcmiss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
611 struct hist_entry *left, struct hist_entry *right)
612 {
613 struct c2c_hist_entry *c2c_left;
614 struct c2c_hist_entry *c2c_right;
615
616 c2c_left = container_of(left, struct c2c_hist_entry, he);
617 c2c_right = container_of(right, struct c2c_hist_entry, he);
618
619 return (uint64_t) llc_miss(&c2c_left->stats) -
620 (uint64_t) llc_miss(&c2c_right->stats);
621 }
622
623 static uint64_t total_records(struct c2c_stats *stats)
624 {
625 uint64_t lclmiss, ldcnt, total;
626
627 lclmiss = stats->lcl_dram +
628 stats->rmt_dram +
629 stats->rmt_hitm +
630 stats->rmt_hit;
631
632 ldcnt = lclmiss +
633 stats->ld_fbhit +
634 stats->ld_l1hit +
635 stats->ld_l2hit +
636 stats->ld_llchit +
637 stats->lcl_hitm;
638
639 total = ldcnt +
640 stats->st_l1hit +
641 stats->st_l1miss;
642
643 return total;
644 }
645
646 static int
647 tot_recs_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
648 struct hist_entry *he)
649 {
650 struct c2c_hist_entry *c2c_he;
651 int width = c2c_width(fmt, hpp, he->hists);
652 uint64_t tot_recs;
653
654 c2c_he = container_of(he, struct c2c_hist_entry, he);
655 tot_recs = total_records(&c2c_he->stats);
656
657 return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
658 }
659
660 static int64_t
661 tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
662 struct hist_entry *left, struct hist_entry *right)
663 {
664 struct c2c_hist_entry *c2c_left;
665 struct c2c_hist_entry *c2c_right;
666 uint64_t tot_recs_left;
667 uint64_t tot_recs_right;
668
669 c2c_left = container_of(left, struct c2c_hist_entry, he);
670 c2c_right = container_of(right, struct c2c_hist_entry, he);
671
672 tot_recs_left = total_records(&c2c_left->stats);
673 tot_recs_right = total_records(&c2c_right->stats);
674
675 return tot_recs_left - tot_recs_right;
676 }
677
678 static uint64_t total_loads(struct c2c_stats *stats)
679 {
680 uint64_t lclmiss, ldcnt;
681
682 lclmiss = stats->lcl_dram +
683 stats->rmt_dram +
684 stats->rmt_hitm +
685 stats->rmt_hit;
686
687 ldcnt = lclmiss +
688 stats->ld_fbhit +
689 stats->ld_l1hit +
690 stats->ld_l2hit +
691 stats->ld_llchit +
692 stats->lcl_hitm;
693
694 return ldcnt;
695 }
696
697 static int
698 tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
699 struct hist_entry *he)
700 {
701 struct c2c_hist_entry *c2c_he;
702 int width = c2c_width(fmt, hpp, he->hists);
703 uint64_t tot_recs;
704
705 c2c_he = container_of(he, struct c2c_hist_entry, he);
706 tot_recs = total_loads(&c2c_he->stats);
707
708 return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
709 }
710
711 static int64_t
712 tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
713 struct hist_entry *left, struct hist_entry *right)
714 {
715 struct c2c_hist_entry *c2c_left;
716 struct c2c_hist_entry *c2c_right;
717 uint64_t tot_recs_left;
718 uint64_t tot_recs_right;
719
720 c2c_left = container_of(left, struct c2c_hist_entry, he);
721 c2c_right = container_of(right, struct c2c_hist_entry, he);
722
723 tot_recs_left = total_loads(&c2c_left->stats);
724 tot_recs_right = total_loads(&c2c_right->stats);
725
726 return tot_recs_left - tot_recs_right;
727 }
728
729 typedef double (get_percent_cb)(struct c2c_hist_entry *);
730
731 static int
732 percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
733 struct hist_entry *he, get_percent_cb get_percent)
734 {
735 struct c2c_hist_entry *c2c_he;
736 int width = c2c_width(fmt, hpp, he->hists);
737 double per;
738
739 c2c_he = container_of(he, struct c2c_hist_entry, he);
740 per = get_percent(c2c_he);
741
742 #ifdef HAVE_SLANG_SUPPORT
743 if (use_browser)
744 return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per);
745 #endif
746 return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
747 }
748
749 static double percent_hitm(struct c2c_hist_entry *c2c_he)
750 {
751 struct c2c_hists *hists;
752 struct c2c_stats *stats;
753 struct c2c_stats *total;
754 int tot = 0, st = 0;
755 double p;
756
757 hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
758 stats = &c2c_he->stats;
759 total = &hists->stats;
760
761 switch (c2c.display) {
762 case DISPLAY_RMT:
763 st = stats->rmt_hitm;
764 tot = total->rmt_hitm;
765 break;
766 case DISPLAY_LCL:
767 st = stats->lcl_hitm;
768 tot = total->lcl_hitm;
769 break;
770 case DISPLAY_TOT:
771 st = stats->tot_hitm;
772 tot = total->tot_hitm;
773 default:
774 break;
775 }
776
777 p = tot ? (double) st / tot : 0;
778
779 return 100 * p;
780 }
781
782 #define PERC_STR(__s, __v) \
783 ({ \
784 scnprintf(__s, sizeof(__s), "%.2F%%", __v); \
785 __s; \
786 })
787
788 static int
789 percent_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
790 struct hist_entry *he)
791 {
792 struct c2c_hist_entry *c2c_he;
793 int width = c2c_width(fmt, hpp, he->hists);
794 char buf[10];
795 double per;
796
797 c2c_he = container_of(he, struct c2c_hist_entry, he);
798 per = percent_hitm(c2c_he);
799 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
800 }
801
802 static int
803 percent_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
804 struct hist_entry *he)
805 {
806 return percent_color(fmt, hpp, he, percent_hitm);
807 }
808
809 static int64_t
810 percent_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
811 struct hist_entry *left, struct hist_entry *right)
812 {
813 struct c2c_hist_entry *c2c_left;
814 struct c2c_hist_entry *c2c_right;
815 double per_left;
816 double per_right;
817
818 c2c_left = container_of(left, struct c2c_hist_entry, he);
819 c2c_right = container_of(right, struct c2c_hist_entry, he);
820
821 per_left = percent_hitm(c2c_left);
822 per_right = percent_hitm(c2c_right);
823
824 return per_left - per_right;
825 }
826
827 static struct c2c_stats *he_stats(struct hist_entry *he)
828 {
829 struct c2c_hist_entry *c2c_he;
830
831 c2c_he = container_of(he, struct c2c_hist_entry, he);
832 return &c2c_he->stats;
833 }
834
835 static struct c2c_stats *total_stats(struct hist_entry *he)
836 {
837 struct c2c_hists *hists;
838
839 hists = container_of(he->hists, struct c2c_hists, hists);
840 return &hists->stats;
841 }
842
843 static double percent(int st, int tot)
844 {
845 return tot ? 100. * (double) st / (double) tot : 0;
846 }
847
848 #define PERCENT(__h, __f) percent(he_stats(__h)->__f, total_stats(__h)->__f)
849
850 #define PERCENT_FN(__f) \
851 static double percent_ ## __f(struct c2c_hist_entry *c2c_he) \
852 { \
853 struct c2c_hists *hists; \
854 \
855 hists = container_of(c2c_he->he.hists, struct c2c_hists, hists); \
856 return percent(c2c_he->stats.__f, hists->stats.__f); \
857 }
858
859 PERCENT_FN(rmt_hitm)
860 PERCENT_FN(lcl_hitm)
861 PERCENT_FN(st_l1hit)
862 PERCENT_FN(st_l1miss)
863
864 static int
865 percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
866 struct hist_entry *he)
867 {
868 int width = c2c_width(fmt, hpp, he->hists);
869 double per = PERCENT(he, rmt_hitm);
870 char buf[10];
871
872 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
873 }
874
875 static int
876 percent_rmt_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
877 struct hist_entry *he)
878 {
879 return percent_color(fmt, hpp, he, percent_rmt_hitm);
880 }
881
882 static int64_t
883 percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
884 struct hist_entry *left, struct hist_entry *right)
885 {
886 double per_left;
887 double per_right;
888
889 per_left = PERCENT(left, lcl_hitm);
890 per_right = PERCENT(right, lcl_hitm);
891
892 return per_left - per_right;
893 }
894
895 static int
896 percent_lcl_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
897 struct hist_entry *he)
898 {
899 int width = c2c_width(fmt, hpp, he->hists);
900 double per = PERCENT(he, lcl_hitm);
901 char buf[10];
902
903 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
904 }
905
906 static int
907 percent_lcl_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
908 struct hist_entry *he)
909 {
910 return percent_color(fmt, hpp, he, percent_lcl_hitm);
911 }
912
913 static int64_t
914 percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
915 struct hist_entry *left, struct hist_entry *right)
916 {
917 double per_left;
918 double per_right;
919
920 per_left = PERCENT(left, lcl_hitm);
921 per_right = PERCENT(right, lcl_hitm);
922
923 return per_left - per_right;
924 }
925
926 static int
927 percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
928 struct hist_entry *he)
929 {
930 int width = c2c_width(fmt, hpp, he->hists);
931 double per = PERCENT(he, st_l1hit);
932 char buf[10];
933
934 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
935 }
936
937 static int
938 percent_stores_l1hit_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
939 struct hist_entry *he)
940 {
941 return percent_color(fmt, hpp, he, percent_st_l1hit);
942 }
943
944 static int64_t
945 percent_stores_l1hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
946 struct hist_entry *left, struct hist_entry *right)
947 {
948 double per_left;
949 double per_right;
950
951 per_left = PERCENT(left, st_l1hit);
952 per_right = PERCENT(right, st_l1hit);
953
954 return per_left - per_right;
955 }
956
957 static int
958 percent_stores_l1miss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
959 struct hist_entry *he)
960 {
961 int width = c2c_width(fmt, hpp, he->hists);
962 double per = PERCENT(he, st_l1miss);
963 char buf[10];
964
965 return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
966 }
967
968 static int
969 percent_stores_l1miss_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
970 struct hist_entry *he)
971 {
972 return percent_color(fmt, hpp, he, percent_st_l1miss);
973 }
974
975 static int64_t
976 percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
977 struct hist_entry *left, struct hist_entry *right)
978 {
979 double per_left;
980 double per_right;
981
982 per_left = PERCENT(left, st_l1miss);
983 per_right = PERCENT(right, st_l1miss);
984
985 return per_left - per_right;
986 }
987
988 STAT_FN(lcl_dram)
989 STAT_FN(rmt_dram)
990
991 static int
992 pid_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
993 struct hist_entry *he)
994 {
995 int width = c2c_width(fmt, hpp, he->hists);
996
997 return scnprintf(hpp->buf, hpp->size, "%*d", width, he->thread->pid_);
998 }
999
1000 static int64_t
1001 pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1002 struct hist_entry *left, struct hist_entry *right)
1003 {
1004 return left->thread->pid_ - right->thread->pid_;
1005 }
1006
1007 static int64_t
1008 empty_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1009 struct hist_entry *left __maybe_unused,
1010 struct hist_entry *right __maybe_unused)
1011 {
1012 return 0;
1013 }
1014
1015 static int
1016 node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
1017 struct hist_entry *he)
1018 {
1019 struct c2c_hist_entry *c2c_he;
1020 bool first = true;
1021 int node;
1022 int ret = 0;
1023
1024 c2c_he = container_of(he, struct c2c_hist_entry, he);
1025
1026 for (node = 0; node < c2c.nodes_cnt; node++) {
1027 DECLARE_BITMAP(set, c2c.cpus_cnt);
1028
1029 bitmap_zero(set, c2c.cpus_cnt);
1030 bitmap_and(set, c2c_he->cpuset, c2c.nodes[node], c2c.cpus_cnt);
1031
1032 if (!bitmap_weight(set, c2c.cpus_cnt)) {
1033 if (c2c.node_info == 1) {
1034 ret = scnprintf(hpp->buf, hpp->size, "%21s", " ");
1035 advance_hpp(hpp, ret);
1036 }
1037 continue;
1038 }
1039
1040 if (!first) {
1041 ret = scnprintf(hpp->buf, hpp->size, " ");
1042 advance_hpp(hpp, ret);
1043 }
1044
1045 switch (c2c.node_info) {
1046 case 0:
1047 ret = scnprintf(hpp->buf, hpp->size, "%2d", node);
1048 advance_hpp(hpp, ret);
1049 break;
1050 case 1:
1051 {
1052 int num = bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt);
1053 struct c2c_stats *stats = &c2c_he->node_stats[node];
1054
1055 ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num);
1056 advance_hpp(hpp, ret);
1057
1058 #define DISPLAY_HITM(__h) \
1059 if (c2c_he->stats.__h> 0) { \
1060 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ", \
1061 percent(stats->__h, c2c_he->stats.__h));\
1062 } else { \
1063 ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a"); \
1064 }
1065
1066 switch (c2c.display) {
1067 case DISPLAY_RMT:
1068 DISPLAY_HITM(rmt_hitm);
1069 break;
1070 case DISPLAY_LCL:
1071 DISPLAY_HITM(lcl_hitm);
1072 break;
1073 case DISPLAY_TOT:
1074 DISPLAY_HITM(tot_hitm);
1075 default:
1076 break;
1077 }
1078
1079 #undef DISPLAY_HITM
1080
1081 advance_hpp(hpp, ret);
1082
1083 if (c2c_he->stats.store > 0) {
1084 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%%}",
1085 percent(stats->store, c2c_he->stats.store));
1086 } else {
1087 ret = scnprintf(hpp->buf, hpp->size, "%6s}", "n/a");
1088 }
1089
1090 advance_hpp(hpp, ret);
1091 break;
1092 }
1093 case 2:
1094 ret = scnprintf(hpp->buf, hpp->size, "%2d{", node);
1095 advance_hpp(hpp, ret);
1096
1097 ret = bitmap_scnprintf(set, c2c.cpus_cnt, hpp->buf, hpp->size);
1098 advance_hpp(hpp, ret);
1099
1100 ret = scnprintf(hpp->buf, hpp->size, "}");
1101 advance_hpp(hpp, ret);
1102 break;
1103 default:
1104 break;
1105 }
1106
1107 first = false;
1108 }
1109
1110 return 0;
1111 }
1112
1113 static int
1114 mean_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1115 struct hist_entry *he, double mean)
1116 {
1117 int width = c2c_width(fmt, hpp, he->hists);
1118 char buf[10];
1119
1120 scnprintf(buf, 10, "%6.0f", mean);
1121 return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1122 }
1123
1124 #define MEAN_ENTRY(__func, __val) \
1125 static int \
1126 __func(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he) \
1127 { \
1128 struct c2c_hist_entry *c2c_he; \
1129 c2c_he = container_of(he, struct c2c_hist_entry, he); \
1130 return mean_entry(fmt, hpp, he, avg_stats(&c2c_he->cstats.__val)); \
1131 }
1132
1133 MEAN_ENTRY(mean_rmt_entry, rmt_hitm);
1134 MEAN_ENTRY(mean_lcl_entry, lcl_hitm);
1135 MEAN_ENTRY(mean_load_entry, load);
1136
1137 static int
1138 cpucnt_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1139 struct hist_entry *he)
1140 {
1141 struct c2c_hist_entry *c2c_he;
1142 int width = c2c_width(fmt, hpp, he->hists);
1143 char buf[10];
1144
1145 c2c_he = container_of(he, struct c2c_hist_entry, he);
1146
1147 scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt));
1148 return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1149 }
1150
1151 static int
1152 cl_idx_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1153 struct hist_entry *he)
1154 {
1155 struct c2c_hist_entry *c2c_he;
1156 int width = c2c_width(fmt, hpp, he->hists);
1157 char buf[10];
1158
1159 c2c_he = container_of(he, struct c2c_hist_entry, he);
1160
1161 scnprintf(buf, 10, "%u", c2c_he->cacheline_idx);
1162 return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1163 }
1164
1165 static int
1166 cl_idx_empty_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1167 struct hist_entry *he)
1168 {
1169 int width = c2c_width(fmt, hpp, he->hists);
1170
1171 return scnprintf(hpp->buf, hpp->size, "%*s", width, "");
1172 }
1173
1174 #define HEADER_LOW(__h) \
1175 { \
1176 .line[1] = { \
1177 .text = __h, \
1178 }, \
1179 }
1180
1181 #define HEADER_BOTH(__h0, __h1) \
1182 { \
1183 .line[0] = { \
1184 .text = __h0, \
1185 }, \
1186 .line[1] = { \
1187 .text = __h1, \
1188 }, \
1189 }
1190
1191 #define HEADER_SPAN(__h0, __h1, __s) \
1192 { \
1193 .line[0] = { \
1194 .text = __h0, \
1195 .span = __s, \
1196 }, \
1197 .line[1] = { \
1198 .text = __h1, \
1199 }, \
1200 }
1201
1202 #define HEADER_SPAN_LOW(__h) \
1203 { \
1204 .line[1] = { \
1205 .text = __h, \
1206 }, \
1207 }
1208
1209 static struct c2c_dimension dim_dcacheline = {
1210 .header = HEADER_LOW("Cacheline"),
1211 .name = "dcacheline",
1212 .cmp = dcacheline_cmp,
1213 .entry = dcacheline_entry,
1214 .width = 18,
1215 };
1216
1217 static struct c2c_header header_offset_tui = HEADER_LOW("Off");
1218
1219 static struct c2c_dimension dim_offset = {
1220 .header = HEADER_BOTH("Data address", "Offset"),
1221 .name = "offset",
1222 .cmp = offset_cmp,
1223 .entry = offset_entry,
1224 .width = 18,
1225 };
1226
1227 static struct c2c_dimension dim_iaddr = {
1228 .header = HEADER_LOW("Code address"),
1229 .name = "iaddr",
1230 .cmp = iaddr_cmp,
1231 .entry = iaddr_entry,
1232 .width = 18,
1233 };
1234
1235 static struct c2c_dimension dim_tot_hitm = {
1236 .header = HEADER_SPAN("----- LLC Load Hitm -----", "Total", 2),
1237 .name = "tot_hitm",
1238 .cmp = tot_hitm_cmp,
1239 .entry = tot_hitm_entry,
1240 .width = 7,
1241 };
1242
1243 static struct c2c_dimension dim_lcl_hitm = {
1244 .header = HEADER_SPAN_LOW("Lcl"),
1245 .name = "lcl_hitm",
1246 .cmp = lcl_hitm_cmp,
1247 .entry = lcl_hitm_entry,
1248 .width = 7,
1249 };
1250
1251 static struct c2c_dimension dim_rmt_hitm = {
1252 .header = HEADER_SPAN_LOW("Rmt"),
1253 .name = "rmt_hitm",
1254 .cmp = rmt_hitm_cmp,
1255 .entry = rmt_hitm_entry,
1256 .width = 7,
1257 };
1258
1259 static struct c2c_dimension dim_cl_rmt_hitm = {
1260 .header = HEADER_SPAN("----- HITM -----", "Rmt", 1),
1261 .name = "cl_rmt_hitm",
1262 .cmp = rmt_hitm_cmp,
1263 .entry = rmt_hitm_entry,
1264 .width = 7,
1265 };
1266
1267 static struct c2c_dimension dim_cl_lcl_hitm = {
1268 .header = HEADER_SPAN_LOW("Lcl"),
1269 .name = "cl_lcl_hitm",
1270 .cmp = lcl_hitm_cmp,
1271 .entry = lcl_hitm_entry,
1272 .width = 7,
1273 };
1274
1275 static struct c2c_dimension dim_stores = {
1276 .header = HEADER_SPAN("---- Store Reference ----", "Total", 2),
1277 .name = "stores",
1278 .cmp = store_cmp,
1279 .entry = store_entry,
1280 .width = 7,
1281 };
1282
1283 static struct c2c_dimension dim_stores_l1hit = {
1284 .header = HEADER_SPAN_LOW("L1Hit"),
1285 .name = "stores_l1hit",
1286 .cmp = st_l1hit_cmp,
1287 .entry = st_l1hit_entry,
1288 .width = 7,
1289 };
1290
1291 static struct c2c_dimension dim_stores_l1miss = {
1292 .header = HEADER_SPAN_LOW("L1Miss"),
1293 .name = "stores_l1miss",
1294 .cmp = st_l1miss_cmp,
1295 .entry = st_l1miss_entry,
1296 .width = 7,
1297 };
1298
1299 static struct c2c_dimension dim_cl_stores_l1hit = {
1300 .header = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
1301 .name = "cl_stores_l1hit",
1302 .cmp = st_l1hit_cmp,
1303 .entry = st_l1hit_entry,
1304 .width = 7,
1305 };
1306
1307 static struct c2c_dimension dim_cl_stores_l1miss = {
1308 .header = HEADER_SPAN_LOW("L1 Miss"),
1309 .name = "cl_stores_l1miss",
1310 .cmp = st_l1miss_cmp,
1311 .entry = st_l1miss_entry,
1312 .width = 7,
1313 };
1314
1315 static struct c2c_dimension dim_ld_fbhit = {
1316 .header = HEADER_SPAN("----- Core Load Hit -----", "FB", 2),
1317 .name = "ld_fbhit",
1318 .cmp = ld_fbhit_cmp,
1319 .entry = ld_fbhit_entry,
1320 .width = 7,
1321 };
1322
1323 static struct c2c_dimension dim_ld_l1hit = {
1324 .header = HEADER_SPAN_LOW("L1"),
1325 .name = "ld_l1hit",
1326 .cmp = ld_l1hit_cmp,
1327 .entry = ld_l1hit_entry,
1328 .width = 7,
1329 };
1330
1331 static struct c2c_dimension dim_ld_l2hit = {
1332 .header = HEADER_SPAN_LOW("L2"),
1333 .name = "ld_l2hit",
1334 .cmp = ld_l2hit_cmp,
1335 .entry = ld_l2hit_entry,
1336 .width = 7,
1337 };
1338
1339 static struct c2c_dimension dim_ld_llchit = {
1340 .header = HEADER_SPAN("-- LLC Load Hit --", "Llc", 1),
1341 .name = "ld_lclhit",
1342 .cmp = ld_llchit_cmp,
1343 .entry = ld_llchit_entry,
1344 .width = 8,
1345 };
1346
1347 static struct c2c_dimension dim_ld_rmthit = {
1348 .header = HEADER_SPAN_LOW("Rmt"),
1349 .name = "ld_rmthit",
1350 .cmp = rmt_hit_cmp,
1351 .entry = rmt_hit_entry,
1352 .width = 8,
1353 };
1354
1355 static struct c2c_dimension dim_ld_llcmiss = {
1356 .header = HEADER_BOTH("LLC", "Ld Miss"),
1357 .name = "ld_llcmiss",
1358 .cmp = ld_llcmiss_cmp,
1359 .entry = ld_llcmiss_entry,
1360 .width = 7,
1361 };
1362
1363 static struct c2c_dimension dim_tot_recs = {
1364 .header = HEADER_BOTH("Total", "records"),
1365 .name = "tot_recs",
1366 .cmp = tot_recs_cmp,
1367 .entry = tot_recs_entry,
1368 .width = 7,
1369 };
1370
1371 static struct c2c_dimension dim_tot_loads = {
1372 .header = HEADER_BOTH("Total", "Loads"),
1373 .name = "tot_loads",
1374 .cmp = tot_loads_cmp,
1375 .entry = tot_loads_entry,
1376 .width = 7,
1377 };
1378
1379 static struct c2c_header percent_hitm_header[] = {
1380 [DISPLAY_LCL] = HEADER_BOTH("Lcl", "Hitm"),
1381 [DISPLAY_RMT] = HEADER_BOTH("Rmt", "Hitm"),
1382 [DISPLAY_TOT] = HEADER_BOTH("Tot", "Hitm"),
1383 };
1384
1385 static struct c2c_dimension dim_percent_hitm = {
1386 .name = "percent_hitm",
1387 .cmp = percent_hitm_cmp,
1388 .entry = percent_hitm_entry,
1389 .color = percent_hitm_color,
1390 .width = 7,
1391 };
1392
1393 static struct c2c_dimension dim_percent_rmt_hitm = {
1394 .header = HEADER_SPAN("----- HITM -----", "Rmt", 1),
1395 .name = "percent_rmt_hitm",
1396 .cmp = percent_rmt_hitm_cmp,
1397 .entry = percent_rmt_hitm_entry,
1398 .color = percent_rmt_hitm_color,
1399 .width = 7,
1400 };
1401
1402 static struct c2c_dimension dim_percent_lcl_hitm = {
1403 .header = HEADER_SPAN_LOW("Lcl"),
1404 .name = "percent_lcl_hitm",
1405 .cmp = percent_lcl_hitm_cmp,
1406 .entry = percent_lcl_hitm_entry,
1407 .color = percent_lcl_hitm_color,
1408 .width = 7,
1409 };
1410
1411 static struct c2c_dimension dim_percent_stores_l1hit = {
1412 .header = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
1413 .name = "percent_stores_l1hit",
1414 .cmp = percent_stores_l1hit_cmp,
1415 .entry = percent_stores_l1hit_entry,
1416 .color = percent_stores_l1hit_color,
1417 .width = 7,
1418 };
1419
1420 static struct c2c_dimension dim_percent_stores_l1miss = {
1421 .header = HEADER_SPAN_LOW("L1 Miss"),
1422 .name = "percent_stores_l1miss",
1423 .cmp = percent_stores_l1miss_cmp,
1424 .entry = percent_stores_l1miss_entry,
1425 .color = percent_stores_l1miss_color,
1426 .width = 7,
1427 };
1428
1429 static struct c2c_dimension dim_dram_lcl = {
1430 .header = HEADER_SPAN("--- Load Dram ----", "Lcl", 1),
1431 .name = "dram_lcl",
1432 .cmp = lcl_dram_cmp,
1433 .entry = lcl_dram_entry,
1434 .width = 8,
1435 };
1436
1437 static struct c2c_dimension dim_dram_rmt = {
1438 .header = HEADER_SPAN_LOW("Rmt"),
1439 .name = "dram_rmt",
1440 .cmp = rmt_dram_cmp,
1441 .entry = rmt_dram_entry,
1442 .width = 8,
1443 };
1444
1445 static struct c2c_dimension dim_pid = {
1446 .header = HEADER_LOW("Pid"),
1447 .name = "pid",
1448 .cmp = pid_cmp,
1449 .entry = pid_entry,
1450 .width = 7,
1451 };
1452
1453 static struct c2c_dimension dim_tid = {
1454 .header = HEADER_LOW("Tid"),
1455 .name = "tid",
1456 .se = &sort_thread,
1457 };
1458
1459 static struct c2c_dimension dim_symbol = {
1460 .name = "symbol",
1461 .se = &sort_sym,
1462 };
1463
1464 static struct c2c_dimension dim_dso = {
1465 .header = HEADER_BOTH("Shared", "Object"),
1466 .name = "dso",
1467 .se = &sort_dso,
1468 };
1469
1470 static struct c2c_header header_node[3] = {
1471 HEADER_LOW("Node"),
1472 HEADER_LOW("Node{cpus %hitms %stores}"),
1473 HEADER_LOW("Node{cpu list}"),
1474 };
1475
1476 static struct c2c_dimension dim_node = {
1477 .name = "node",
1478 .cmp = empty_cmp,
1479 .entry = node_entry,
1480 .width = 4,
1481 };
1482
1483 static struct c2c_dimension dim_mean_rmt = {
1484 .header = HEADER_SPAN("---------- cycles ----------", "rmt hitm", 2),
1485 .name = "mean_rmt",
1486 .cmp = empty_cmp,
1487 .entry = mean_rmt_entry,
1488 .width = 8,
1489 };
1490
1491 static struct c2c_dimension dim_mean_lcl = {
1492 .header = HEADER_SPAN_LOW("lcl hitm"),
1493 .name = "mean_lcl",
1494 .cmp = empty_cmp,
1495 .entry = mean_lcl_entry,
1496 .width = 8,
1497 };
1498
1499 static struct c2c_dimension dim_mean_load = {
1500 .header = HEADER_SPAN_LOW("load"),
1501 .name = "mean_load",
1502 .cmp = empty_cmp,
1503 .entry = mean_load_entry,
1504 .width = 8,
1505 };
1506
1507 static struct c2c_dimension dim_cpucnt = {
1508 .header = HEADER_BOTH("cpu", "cnt"),
1509 .name = "cpucnt",
1510 .cmp = empty_cmp,
1511 .entry = cpucnt_entry,
1512 .width = 8,
1513 };
1514
1515 static struct c2c_dimension dim_srcline = {
1516 .name = "cl_srcline",
1517 .se = &sort_srcline,
1518 };
1519
1520 static struct c2c_dimension dim_dcacheline_idx = {
1521 .header = HEADER_LOW("Index"),
1522 .name = "cl_idx",
1523 .cmp = empty_cmp,
1524 .entry = cl_idx_entry,
1525 .width = 5,
1526 };
1527
1528 static struct c2c_dimension dim_dcacheline_num = {
1529 .header = HEADER_LOW("Num"),
1530 .name = "cl_num",
1531 .cmp = empty_cmp,
1532 .entry = cl_idx_entry,
1533 .width = 5,
1534 };
1535
1536 static struct c2c_dimension dim_dcacheline_num_empty = {
1537 .header = HEADER_LOW("Num"),
1538 .name = "cl_num_empty",
1539 .cmp = empty_cmp,
1540 .entry = cl_idx_empty_entry,
1541 .width = 5,
1542 };
1543
1544 static struct c2c_dimension *dimensions[] = {
1545 &dim_dcacheline,
1546 &dim_offset,
1547 &dim_iaddr,
1548 &dim_tot_hitm,
1549 &dim_lcl_hitm,
1550 &dim_rmt_hitm,
1551 &dim_cl_lcl_hitm,
1552 &dim_cl_rmt_hitm,
1553 &dim_stores,
1554 &dim_stores_l1hit,
1555 &dim_stores_l1miss,
1556 &dim_cl_stores_l1hit,
1557 &dim_cl_stores_l1miss,
1558 &dim_ld_fbhit,
1559 &dim_ld_l1hit,
1560 &dim_ld_l2hit,
1561 &dim_ld_llchit,
1562 &dim_ld_rmthit,
1563 &dim_ld_llcmiss,
1564 &dim_tot_recs,
1565 &dim_tot_loads,
1566 &dim_percent_hitm,
1567 &dim_percent_rmt_hitm,
1568 &dim_percent_lcl_hitm,
1569 &dim_percent_stores_l1hit,
1570 &dim_percent_stores_l1miss,
1571 &dim_dram_lcl,
1572 &dim_dram_rmt,
1573 &dim_pid,
1574 &dim_tid,
1575 &dim_symbol,
1576 &dim_dso,
1577 &dim_node,
1578 &dim_mean_rmt,
1579 &dim_mean_lcl,
1580 &dim_mean_load,
1581 &dim_cpucnt,
1582 &dim_srcline,
1583 &dim_dcacheline_idx,
1584 &dim_dcacheline_num,
1585 &dim_dcacheline_num_empty,
1586 NULL,
1587 };
1588
1589 static void fmt_free(struct perf_hpp_fmt *fmt)
1590 {
1591 struct c2c_fmt *c2c_fmt;
1592
1593 c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1594 free(c2c_fmt);
1595 }
1596
1597 static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
1598 {
1599 struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
1600 struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
1601
1602 return c2c_a->dim == c2c_b->dim;
1603 }
1604
1605 static struct c2c_dimension *get_dimension(const char *name)
1606 {
1607 unsigned int i;
1608
1609 for (i = 0; dimensions[i]; i++) {
1610 struct c2c_dimension *dim = dimensions[i];
1611
1612 if (!strcmp(dim->name, name))
1613 return dim;
1614 };
1615
1616 return NULL;
1617 }
1618
1619 static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1620 struct hist_entry *he)
1621 {
1622 struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1623 struct c2c_dimension *dim = c2c_fmt->dim;
1624 size_t len = fmt->user_len;
1625
1626 if (!len) {
1627 len = hists__col_len(he->hists, dim->se->se_width_idx);
1628
1629 if (dim == &dim_symbol || dim == &dim_srcline)
1630 len = symbol_width(he->hists, dim->se);
1631 }
1632
1633 return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
1634 }
1635
1636 static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
1637 struct hist_entry *a, struct hist_entry *b)
1638 {
1639 struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1640 struct c2c_dimension *dim = c2c_fmt->dim;
1641
1642 return dim->se->se_cmp(a, b);
1643 }
1644
1645 static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
1646 struct hist_entry *a, struct hist_entry *b)
1647 {
1648 struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1649 struct c2c_dimension *dim = c2c_fmt->dim;
1650 int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
1651
1652 collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
1653 return collapse_fn(a, b);
1654 }
1655
1656 static struct c2c_fmt *get_format(const char *name)
1657 {
1658 struct c2c_dimension *dim = get_dimension(name);
1659 struct c2c_fmt *c2c_fmt;
1660 struct perf_hpp_fmt *fmt;
1661
1662 if (!dim)
1663 return NULL;
1664
1665 c2c_fmt = zalloc(sizeof(*c2c_fmt));
1666 if (!c2c_fmt)
1667 return NULL;
1668
1669 c2c_fmt->dim = dim;
1670
1671 fmt = &c2c_fmt->fmt;
1672 INIT_LIST_HEAD(&fmt->list);
1673 INIT_LIST_HEAD(&fmt->sort_list);
1674
1675 fmt->cmp = dim->se ? c2c_se_cmp : dim->cmp;
1676 fmt->sort = dim->se ? c2c_se_cmp : dim->cmp;
1677 fmt->color = dim->se ? NULL : dim->color;
1678 fmt->entry = dim->se ? c2c_se_entry : dim->entry;
1679 fmt->header = c2c_header;
1680 fmt->width = c2c_width;
1681 fmt->collapse = dim->se ? c2c_se_collapse : dim->cmp;
1682 fmt->equal = fmt_equal;
1683 fmt->free = fmt_free;
1684
1685 return c2c_fmt;
1686 }
1687
1688 static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
1689 {
1690 struct c2c_fmt *c2c_fmt = get_format(name);
1691
1692 if (!c2c_fmt) {
1693 reset_dimensions();
1694 return output_field_add(hpp_list, name);
1695 }
1696
1697 perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
1698 return 0;
1699 }
1700
1701 static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
1702 {
1703 struct c2c_fmt *c2c_fmt = get_format(name);
1704 struct c2c_dimension *dim;
1705
1706 if (!c2c_fmt) {
1707 reset_dimensions();
1708 return sort_dimension__add(hpp_list, name, NULL, 0);
1709 }
1710
1711 dim = c2c_fmt->dim;
1712 if (dim == &dim_dso)
1713 hpp_list->dso = 1;
1714
1715 perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
1716 return 0;
1717 }
1718
1719 #define PARSE_LIST(_list, _fn) \
1720 do { \
1721 char *tmp, *tok; \
1722 ret = 0; \
1723 \
1724 if (!_list) \
1725 break; \
1726 \
1727 for (tok = strtok_r((char *)_list, ", ", &tmp); \
1728 tok; tok = strtok_r(NULL, ", ", &tmp)) { \
1729 ret = _fn(hpp_list, tok); \
1730 if (ret == -EINVAL) { \
1731 pr_err("Invalid --fields key: `%s'", tok); \
1732 break; \
1733 } else if (ret == -ESRCH) { \
1734 pr_err("Unknown --fields key: `%s'", tok); \
1735 break; \
1736 } \
1737 } \
1738 } while (0)
1739
1740 static int hpp_list__parse(struct perf_hpp_list *hpp_list,
1741 const char *output_,
1742 const char *sort_)
1743 {
1744 char *output = output_ ? strdup(output_) : NULL;
1745 char *sort = sort_ ? strdup(sort_) : NULL;
1746 int ret;
1747
1748 PARSE_LIST(output, c2c_hists__init_output);
1749 PARSE_LIST(sort, c2c_hists__init_sort);
1750
1751 /* copy sort keys to output fields */
1752 perf_hpp__setup_output_field(hpp_list);
1753
1754 /*
1755 * We dont need other sorting keys other than those
1756 * we already specified. It also really slows down
1757 * the processing a lot with big number of output
1758 * fields, so switching this off for c2c.
1759 */
1760
1761 #if 0
1762 /* and then copy output fields to sort keys */
1763 perf_hpp__append_sort_keys(&hists->list);
1764 #endif
1765
1766 free(output);
1767 free(sort);
1768 return ret;
1769 }
1770
1771 static int c2c_hists__init(struct c2c_hists *hists,
1772 const char *sort,
1773 int nr_header_lines)
1774 {
1775 __hists__init(&hists->hists, &hists->list);
1776
1777 /*
1778 * Initialize only with sort fields, we need to resort
1779 * later anyway, and that's where we add output fields
1780 * as well.
1781 */
1782 perf_hpp_list__init(&hists->list);
1783
1784 /* Overload number of header lines.*/
1785 hists->list.nr_header_lines = nr_header_lines;
1786
1787 return hpp_list__parse(&hists->list, NULL, sort);
1788 }
1789
1790 static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
1791 const char *output,
1792 const char *sort)
1793 {
1794 perf_hpp__reset_output_field(&c2c_hists->list);
1795 return hpp_list__parse(&c2c_hists->list, output, sort);
1796 }
1797
1798 #define DISPLAY_LINE_LIMIT 0.0005
1799
1800 static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
1801 {
1802 struct c2c_hist_entry *c2c_he;
1803 double ld_dist;
1804
1805 if (c2c.show_all)
1806 return true;
1807
1808 c2c_he = container_of(he, struct c2c_hist_entry, he);
1809
1810 #define FILTER_HITM(__h) \
1811 if (stats->__h) { \
1812 ld_dist = ((double)c2c_he->stats.__h / stats->__h); \
1813 if (ld_dist < DISPLAY_LINE_LIMIT) \
1814 he->filtered = HIST_FILTER__C2C; \
1815 } else { \
1816 he->filtered = HIST_FILTER__C2C; \
1817 }
1818
1819 switch (c2c.display) {
1820 case DISPLAY_LCL:
1821 FILTER_HITM(lcl_hitm);
1822 break;
1823 case DISPLAY_RMT:
1824 FILTER_HITM(rmt_hitm);
1825 break;
1826 case DISPLAY_TOT:
1827 FILTER_HITM(tot_hitm);
1828 default:
1829 break;
1830 };
1831
1832 #undef FILTER_HITM
1833
1834 return he->filtered == 0;
1835 }
1836
1837 static inline int valid_hitm_or_store(struct hist_entry *he)
1838 {
1839 struct c2c_hist_entry *c2c_he;
1840 bool has_hitm;
1841
1842 c2c_he = container_of(he, struct c2c_hist_entry, he);
1843 has_hitm = c2c.display == DISPLAY_TOT ? c2c_he->stats.tot_hitm :
1844 c2c.display == DISPLAY_LCL ? c2c_he->stats.lcl_hitm :
1845 c2c_he->stats.rmt_hitm;
1846 return has_hitm || c2c_he->stats.store;
1847 }
1848
1849 static void calc_width(struct hist_entry *he)
1850 {
1851 struct c2c_hists *c2c_hists;
1852
1853 c2c_hists = container_of(he->hists, struct c2c_hists, hists);
1854 hists__calc_col_len(&c2c_hists->hists, he);
1855 }
1856
1857 static int filter_cb(struct hist_entry *he)
1858 {
1859 if (c2c.show_src && !he->srcline)
1860 he->srcline = hist_entry__get_srcline(he);
1861
1862 calc_width(he);
1863
1864 if (!valid_hitm_or_store(he))
1865 he->filtered = HIST_FILTER__C2C;
1866
1867 return 0;
1868 }
1869
1870 static int resort_cl_cb(struct hist_entry *he)
1871 {
1872 struct c2c_hist_entry *c2c_he;
1873 struct c2c_hists *c2c_hists;
1874 bool display = he__display(he, &c2c.hitm_stats);
1875
1876 c2c_he = container_of(he, struct c2c_hist_entry, he);
1877 c2c_hists = c2c_he->hists;
1878
1879 calc_width(he);
1880
1881 if (display && c2c_hists) {
1882 static unsigned int idx;
1883
1884 c2c_he->cacheline_idx = idx++;
1885
1886 c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
1887
1888 hists__collapse_resort(&c2c_hists->hists, NULL);
1889 hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
1890 }
1891
1892 return 0;
1893 }
1894
1895 static void setup_nodes_header(void)
1896 {
1897 dim_node.header = header_node[c2c.node_info];
1898 }
1899
1900 static int setup_nodes(struct perf_session *session)
1901 {
1902 struct numa_node *n;
1903 unsigned long **nodes;
1904 int node, cpu;
1905 int *cpu2node;
1906
1907 if (c2c.node_info > 2)
1908 c2c.node_info = 2;
1909
1910 c2c.nodes_cnt = session->header.env.nr_numa_nodes;
1911 c2c.cpus_cnt = session->header.env.nr_cpus_online;
1912
1913 n = session->header.env.numa_nodes;
1914 if (!n)
1915 return -EINVAL;
1916
1917 nodes = zalloc(sizeof(unsigned long *) * c2c.nodes_cnt);
1918 if (!nodes)
1919 return -ENOMEM;
1920
1921 c2c.nodes = nodes;
1922
1923 cpu2node = zalloc(sizeof(int) * c2c.cpus_cnt);
1924 if (!cpu2node)
1925 return -ENOMEM;
1926
1927 for (cpu = 0; cpu < c2c.cpus_cnt; cpu++)
1928 cpu2node[cpu] = -1;
1929
1930 c2c.cpu2node = cpu2node;
1931
1932 for (node = 0; node < c2c.nodes_cnt; node++) {
1933 struct cpu_map *map = n[node].map;
1934 unsigned long *set;
1935
1936 set = bitmap_alloc(c2c.cpus_cnt);
1937 if (!set)
1938 return -ENOMEM;
1939
1940 nodes[node] = set;
1941
1942 /* empty node, skip */
1943 if (cpu_map__empty(map))
1944 continue;
1945
1946 for (cpu = 0; cpu < map->nr; cpu++) {
1947 set_bit(map->map[cpu], set);
1948
1949 if (WARN_ONCE(cpu2node[map->map[cpu]] != -1, "node/cpu topology bug"))
1950 return -EINVAL;
1951
1952 cpu2node[map->map[cpu]] = node;
1953 }
1954 }
1955
1956 setup_nodes_header();
1957 return 0;
1958 }
1959
1960 #define HAS_HITMS(__h) ((__h)->stats.lcl_hitm || (__h)->stats.rmt_hitm)
1961
1962 static int resort_hitm_cb(struct hist_entry *he)
1963 {
1964 struct c2c_hist_entry *c2c_he;
1965 c2c_he = container_of(he, struct c2c_hist_entry, he);
1966
1967 if (HAS_HITMS(c2c_he)) {
1968 c2c.shared_clines++;
1969 c2c_add_stats(&c2c.hitm_stats, &c2c_he->stats);
1970 }
1971
1972 return 0;
1973 }
1974
1975 static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
1976 {
1977 struct rb_node *next = rb_first(&hists->entries);
1978 int ret = 0;
1979
1980 while (next) {
1981 struct hist_entry *he;
1982
1983 he = rb_entry(next, struct hist_entry, rb_node);
1984 ret = cb(he);
1985 if (ret)
1986 break;
1987 next = rb_next(&he->rb_node);
1988 }
1989
1990 return ret;
1991 }
1992
1993 static void print_c2c__display_stats(FILE *out)
1994 {
1995 int llc_misses;
1996 struct c2c_stats *stats = &c2c.hists.stats;
1997
1998 llc_misses = stats->lcl_dram +
1999 stats->rmt_dram +
2000 stats->rmt_hit +
2001 stats->rmt_hitm;
2002
2003 fprintf(out, "=================================================\n");
2004 fprintf(out, " Trace Event Information \n");
2005 fprintf(out, "=================================================\n");
2006 fprintf(out, " Total records : %10d\n", stats->nr_entries);
2007 fprintf(out, " Locked Load/Store Operations : %10d\n", stats->locks);
2008 fprintf(out, " Load Operations : %10d\n", stats->load);
2009 fprintf(out, " Loads - uncacheable : %10d\n", stats->ld_uncache);
2010 fprintf(out, " Loads - IO : %10d\n", stats->ld_io);
2011 fprintf(out, " Loads - Miss : %10d\n", stats->ld_miss);
2012 fprintf(out, " Loads - no mapping : %10d\n", stats->ld_noadrs);
2013 fprintf(out, " Load Fill Buffer Hit : %10d\n", stats->ld_fbhit);
2014 fprintf(out, " Load L1D hit : %10d\n", stats->ld_l1hit);
2015 fprintf(out, " Load L2D hit : %10d\n", stats->ld_l2hit);
2016 fprintf(out, " Load LLC hit : %10d\n", stats->ld_llchit + stats->lcl_hitm);
2017 fprintf(out, " Load Local HITM : %10d\n", stats->lcl_hitm);
2018 fprintf(out, " Load Remote HITM : %10d\n", stats->rmt_hitm);
2019 fprintf(out, " Load Remote HIT : %10d\n", stats->rmt_hit);
2020 fprintf(out, " Load Local DRAM : %10d\n", stats->lcl_dram);
2021 fprintf(out, " Load Remote DRAM : %10d\n", stats->rmt_dram);
2022 fprintf(out, " Load MESI State Exclusive : %10d\n", stats->ld_excl);
2023 fprintf(out, " Load MESI State Shared : %10d\n", stats->ld_shared);
2024 fprintf(out, " Load LLC Misses : %10d\n", llc_misses);
2025 fprintf(out, " LLC Misses to Local DRAM : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.);
2026 fprintf(out, " LLC Misses to Remote DRAM : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.);
2027 fprintf(out, " LLC Misses to Remote cache (HIT) : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.);
2028 fprintf(out, " LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->rmt_hitm/(double)llc_misses) * 100.);
2029 fprintf(out, " Store Operations : %10d\n", stats->store);
2030 fprintf(out, " Store - uncacheable : %10d\n", stats->st_uncache);
2031 fprintf(out, " Store - no mapping : %10d\n", stats->st_noadrs);
2032 fprintf(out, " Store L1D Hit : %10d\n", stats->st_l1hit);
2033 fprintf(out, " Store L1D Miss : %10d\n", stats->st_l1miss);
2034 fprintf(out, " No Page Map Rejects : %10d\n", stats->nomap);
2035 fprintf(out, " Unable to parse data source : %10d\n", stats->noparse);
2036 }
2037
2038 static void print_shared_cacheline_info(FILE *out)
2039 {
2040 struct c2c_stats *stats = &c2c.hitm_stats;
2041 int hitm_cnt = stats->lcl_hitm + stats->rmt_hitm;
2042
2043 fprintf(out, "=================================================\n");
2044 fprintf(out, " Global Shared Cache Line Event Information \n");
2045 fprintf(out, "=================================================\n");
2046 fprintf(out, " Total Shared Cache Lines : %10d\n", c2c.shared_clines);
2047 fprintf(out, " Load HITs on shared lines : %10d\n", stats->load);
2048 fprintf(out, " Fill Buffer Hits on shared lines : %10d\n", stats->ld_fbhit);
2049 fprintf(out, " L1D hits on shared lines : %10d\n", stats->ld_l1hit);
2050 fprintf(out, " L2D hits on shared lines : %10d\n", stats->ld_l2hit);
2051 fprintf(out, " LLC hits on shared lines : %10d\n", stats->ld_llchit + stats->lcl_hitm);
2052 fprintf(out, " Locked Access on shared lines : %10d\n", stats->locks);
2053 fprintf(out, " Store HITs on shared lines : %10d\n", stats->store);
2054 fprintf(out, " Store L1D hits on shared lines : %10d\n", stats->st_l1hit);
2055 fprintf(out, " Total Merged records : %10d\n", hitm_cnt + stats->store);
2056 }
2057
2058 static void print_cacheline(struct c2c_hists *c2c_hists,
2059 struct hist_entry *he_cl,
2060 struct perf_hpp_list *hpp_list,
2061 FILE *out)
2062 {
2063 char bf[1000];
2064 struct perf_hpp hpp = {
2065 .buf = bf,
2066 .size = 1000,
2067 };
2068 static bool once;
2069
2070 if (!once) {
2071 hists__fprintf_headers(&c2c_hists->hists, out);
2072 once = true;
2073 } else {
2074 fprintf(out, "\n");
2075 }
2076
2077 fprintf(out, " -------------------------------------------------------------\n");
2078 __hist_entry__snprintf(he_cl, &hpp, hpp_list);
2079 fprintf(out, "%s\n", bf);
2080 fprintf(out, " -------------------------------------------------------------\n");
2081
2082 hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, true);
2083 }
2084
2085 static void print_pareto(FILE *out)
2086 {
2087 struct perf_hpp_list hpp_list;
2088 struct rb_node *nd;
2089 int ret;
2090
2091 perf_hpp_list__init(&hpp_list);
2092 ret = hpp_list__parse(&hpp_list,
2093 "cl_num,"
2094 "cl_rmt_hitm,"
2095 "cl_lcl_hitm,"
2096 "cl_stores_l1hit,"
2097 "cl_stores_l1miss,"
2098 "dcacheline",
2099 NULL);
2100
2101 if (WARN_ONCE(ret, "failed to setup sort entries\n"))
2102 return;
2103
2104 nd = rb_first(&c2c.hists.hists.entries);
2105
2106 for (; nd; nd = rb_next(nd)) {
2107 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
2108 struct c2c_hist_entry *c2c_he;
2109
2110 if (he->filtered)
2111 continue;
2112
2113 c2c_he = container_of(he, struct c2c_hist_entry, he);
2114 print_cacheline(c2c_he->hists, he, &hpp_list, out);
2115 }
2116 }
2117
2118 static void print_c2c_info(FILE *out, struct perf_session *session)
2119 {
2120 struct perf_evlist *evlist = session->evlist;
2121 struct perf_evsel *evsel;
2122 bool first = true;
2123
2124 fprintf(out, "=================================================\n");
2125 fprintf(out, " c2c details \n");
2126 fprintf(out, "=================================================\n");
2127
2128 evlist__for_each_entry(evlist, evsel) {
2129 fprintf(out, "%-36s: %s\n", first ? " Events" : "",
2130 perf_evsel__name(evsel));
2131 first = false;
2132 }
2133 fprintf(out, " Cachelines sort on : %s HITMs\n",
2134 display_str[c2c.display]);
2135 fprintf(out, " Cacheline data grouping : %s\n", c2c.cl_sort);
2136 }
2137
2138 static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
2139 {
2140 setup_pager();
2141
2142 print_c2c__display_stats(out);
2143 fprintf(out, "\n");
2144 print_shared_cacheline_info(out);
2145 fprintf(out, "\n");
2146 print_c2c_info(out, session);
2147
2148 if (c2c.stats_only)
2149 return;
2150
2151 fprintf(out, "\n");
2152 fprintf(out, "=================================================\n");
2153 fprintf(out, " Shared Data Cache Line Table \n");
2154 fprintf(out, "=================================================\n");
2155 fprintf(out, "#\n");
2156
2157 hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, false);
2158
2159 fprintf(out, "\n");
2160 fprintf(out, "=================================================\n");
2161 fprintf(out, " Shared Cache Line Distribution Pareto \n");
2162 fprintf(out, "=================================================\n");
2163 fprintf(out, "#\n");
2164
2165 print_pareto(out);
2166 }
2167
2168 #ifdef HAVE_SLANG_SUPPORT
2169 static void c2c_browser__update_nr_entries(struct hist_browser *hb)
2170 {
2171 u64 nr_entries = 0;
2172 struct rb_node *nd = rb_first(&hb->hists->entries);
2173
2174 while (nd) {
2175 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
2176
2177 if (!he->filtered)
2178 nr_entries++;
2179
2180 nd = rb_next(nd);
2181 }
2182
2183 hb->nr_non_filtered_entries = nr_entries;
2184 }
2185
2186 struct c2c_cacheline_browser {
2187 struct hist_browser hb;
2188 struct hist_entry *he;
2189 };
2190
2191 static int
2192 perf_c2c_cacheline_browser__title(struct hist_browser *browser,
2193 char *bf, size_t size)
2194 {
2195 struct c2c_cacheline_browser *cl_browser;
2196 struct hist_entry *he;
2197 uint64_t addr = 0;
2198
2199 cl_browser = container_of(browser, struct c2c_cacheline_browser, hb);
2200 he = cl_browser->he;
2201
2202 if (he->mem_info)
2203 addr = cl_address(he->mem_info->daddr.addr);
2204
2205 scnprintf(bf, size, "Cacheline 0x%lx", addr);
2206 return 0;
2207 }
2208
2209 static struct c2c_cacheline_browser*
2210 c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he)
2211 {
2212 struct c2c_cacheline_browser *browser;
2213
2214 browser = zalloc(sizeof(*browser));
2215 if (browser) {
2216 hist_browser__init(&browser->hb, hists);
2217 browser->hb.c2c_filter = true;
2218 browser->hb.title = perf_c2c_cacheline_browser__title;
2219 browser->he = he;
2220 }
2221
2222 return browser;
2223 }
2224
2225 static int perf_c2c__browse_cacheline(struct hist_entry *he)
2226 {
2227 struct c2c_hist_entry *c2c_he;
2228 struct c2c_hists *c2c_hists;
2229 struct c2c_cacheline_browser *cl_browser;
2230 struct hist_browser *browser;
2231 int key = -1;
2232 const char help[] =
2233 " ENTER Togle callchains (if present) \n"
2234 " n Togle Node details info \n"
2235 " s Togle full lenght of symbol and source line columns \n"
2236 " q Return back to cacheline list \n";
2237
2238 if (!he)
2239 return 0;
2240
2241 /* Display compact version first. */
2242 c2c.symbol_full = false;
2243
2244 c2c_he = container_of(he, struct c2c_hist_entry, he);
2245 c2c_hists = c2c_he->hists;
2246
2247 cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he);
2248 if (cl_browser == NULL)
2249 return -1;
2250
2251 browser = &cl_browser->hb;
2252
2253 /* reset abort key so that it can get Ctrl-C as a key */
2254 SLang_reset_tty();
2255 SLang_init_tty(0, 0, 0);
2256
2257 c2c_browser__update_nr_entries(browser);
2258
2259 while (1) {
2260 key = hist_browser__run(browser, "? - help");
2261
2262 switch (key) {
2263 case 's':
2264 c2c.symbol_full = !c2c.symbol_full;
2265 break;
2266 case 'n':
2267 c2c.node_info = (c2c.node_info + 1) % 3;
2268 setup_nodes_header();
2269 break;
2270 case 'q':
2271 goto out;
2272 case '?':
2273 ui_browser__help_window(&browser->b, help);
2274 break;
2275 default:
2276 break;
2277 }
2278 }
2279
2280 out:
2281 free(cl_browser);
2282 return 0;
2283 }
2284
2285 static int perf_c2c_browser__title(struct hist_browser *browser,
2286 char *bf, size_t size)
2287 {
2288 scnprintf(bf, size,
2289 "Shared Data Cache Line Table "
2290 "(%lu entries, sorted on %s HITMs)",
2291 browser->nr_non_filtered_entries,
2292 display_str[c2c.display]);
2293 return 0;
2294 }
2295
2296 static struct hist_browser*
2297 perf_c2c_browser__new(struct hists *hists)
2298 {
2299 struct hist_browser *browser = hist_browser__new(hists);
2300
2301 if (browser) {
2302 browser->title = perf_c2c_browser__title;
2303 browser->c2c_filter = true;
2304 }
2305
2306 return browser;
2307 }
2308
2309 static int perf_c2c__hists_browse(struct hists *hists)
2310 {
2311 struct hist_browser *browser;
2312 int key = -1;
2313 const char help[] =
2314 " d Display cacheline details \n"
2315 " ENTER Togle callchains (if present) \n"
2316 " q Quit \n";
2317
2318 browser = perf_c2c_browser__new(hists);
2319 if (browser == NULL)
2320 return -1;
2321
2322 /* reset abort key so that it can get Ctrl-C as a key */
2323 SLang_reset_tty();
2324 SLang_init_tty(0, 0, 0);
2325
2326 c2c_browser__update_nr_entries(browser);
2327
2328 while (1) {
2329 key = hist_browser__run(browser, "? - help");
2330
2331 switch (key) {
2332 case 'q':
2333 goto out;
2334 case 'd':
2335 perf_c2c__browse_cacheline(browser->he_selection);
2336 break;
2337 case '?':
2338 ui_browser__help_window(&browser->b, help);
2339 break;
2340 default:
2341 break;
2342 }
2343 }
2344
2345 out:
2346 hist_browser__delete(browser);
2347 return 0;
2348 }
2349
2350 static void perf_c2c_display(struct perf_session *session)
2351 {
2352 if (use_browser == 0)
2353 perf_c2c__hists_fprintf(stdout, session);
2354 else
2355 perf_c2c__hists_browse(&c2c.hists.hists);
2356 }
2357 #else
2358 static void perf_c2c_display(struct perf_session *session)
2359 {
2360 use_browser = 0;
2361 perf_c2c__hists_fprintf(stdout, session);
2362 }
2363 #endif /* HAVE_SLANG_SUPPORT */
2364
2365 static void ui_quirks(void)
2366 {
2367 if (!c2c.use_stdio) {
2368 dim_offset.width = 5;
2369 dim_offset.header = header_offset_tui;
2370 }
2371
2372 dim_percent_hitm.header = percent_hitm_header[c2c.display];
2373 }
2374
2375 #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent"
2376
2377 const char callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
2378 CALLCHAIN_REPORT_HELP
2379 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
2380
2381 static int
2382 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
2383 {
2384 struct callchain_param *callchain = opt->value;
2385
2386 callchain->enabled = !unset;
2387 /*
2388 * --no-call-graph
2389 */
2390 if (unset) {
2391 symbol_conf.use_callchain = false;
2392 callchain->mode = CHAIN_NONE;
2393 return 0;
2394 }
2395
2396 return parse_callchain_report_opt(arg);
2397 }
2398
2399 static int setup_callchain(struct perf_evlist *evlist)
2400 {
2401 u64 sample_type = perf_evlist__combined_sample_type(evlist);
2402 enum perf_call_graph_mode mode = CALLCHAIN_NONE;
2403
2404 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
2405 (sample_type & PERF_SAMPLE_STACK_USER)) {
2406 mode = CALLCHAIN_DWARF;
2407 dwarf_callchain_users = true;
2408 } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
2409 mode = CALLCHAIN_LBR;
2410 else if (sample_type & PERF_SAMPLE_CALLCHAIN)
2411 mode = CALLCHAIN_FP;
2412
2413 if (!callchain_param.enabled &&
2414 callchain_param.mode != CHAIN_NONE &&
2415 mode != CALLCHAIN_NONE) {
2416 symbol_conf.use_callchain = true;
2417 if (callchain_register_param(&callchain_param) < 0) {
2418 ui__error("Can't register callchain params.\n");
2419 return -EINVAL;
2420 }
2421 }
2422
2423 callchain_param.record_mode = mode;
2424 callchain_param.min_percent = 0;
2425 return 0;
2426 }
2427
2428 static int setup_display(const char *str)
2429 {
2430 const char *display = str ?: "tot";
2431
2432 if (!strcmp(display, "tot"))
2433 c2c.display = DISPLAY_TOT;
2434 else if (!strcmp(display, "rmt"))
2435 c2c.display = DISPLAY_RMT;
2436 else if (!strcmp(display, "lcl"))
2437 c2c.display = DISPLAY_LCL;
2438 else {
2439 pr_err("failed: unknown display type: %s\n", str);
2440 return -1;
2441 }
2442
2443 return 0;
2444 }
2445
2446 #define for_each_token(__tok, __buf, __sep, __tmp) \
2447 for (__tok = strtok_r(__buf, __sep, &__tmp); __tok; \
2448 __tok = strtok_r(NULL, __sep, &__tmp))
2449
2450 static int build_cl_output(char *cl_sort, bool no_source)
2451 {
2452 char *tok, *tmp, *buf = strdup(cl_sort);
2453 bool add_pid = false;
2454 bool add_tid = false;
2455 bool add_iaddr = false;
2456 bool add_sym = false;
2457 bool add_dso = false;
2458 bool add_src = false;
2459 int ret = 0;
2460
2461 if (!buf)
2462 return -ENOMEM;
2463
2464 for_each_token(tok, buf, ",", tmp) {
2465 if (!strcmp(tok, "tid")) {
2466 add_tid = true;
2467 } else if (!strcmp(tok, "pid")) {
2468 add_pid = true;
2469 } else if (!strcmp(tok, "iaddr")) {
2470 add_iaddr = true;
2471 add_sym = true;
2472 add_dso = true;
2473 add_src = no_source ? false : true;
2474 } else if (!strcmp(tok, "dso")) {
2475 add_dso = true;
2476 } else if (strcmp(tok, "offset")) {
2477 pr_err("unrecognized sort token: %s\n", tok);
2478 ret = -EINVAL;
2479 goto err;
2480 }
2481 }
2482
2483 if (asprintf(&c2c.cl_output,
2484 "%s%s%s%s%s%s%s%s%s%s",
2485 c2c.use_stdio ? "cl_num_empty," : "",
2486 "percent_rmt_hitm,"
2487 "percent_lcl_hitm,"
2488 "percent_stores_l1hit,"
2489 "percent_stores_l1miss,"
2490 "offset,",
2491 add_pid ? "pid," : "",
2492 add_tid ? "tid," : "",
2493 add_iaddr ? "iaddr," : "",
2494 "mean_rmt,"
2495 "mean_lcl,"
2496 "mean_load,"
2497 "tot_recs,"
2498 "cpucnt,",
2499 add_sym ? "symbol," : "",
2500 add_dso ? "dso," : "",
2501 add_src ? "cl_srcline," : "",
2502 "node") < 0) {
2503 ret = -ENOMEM;
2504 goto err;
2505 }
2506
2507 c2c.show_src = add_src;
2508 err:
2509 free(buf);
2510 return ret;
2511 }
2512
2513 static int setup_coalesce(const char *coalesce, bool no_source)
2514 {
2515 const char *c = coalesce ?: coalesce_default;
2516
2517 if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0)
2518 return -ENOMEM;
2519
2520 if (build_cl_output(c2c.cl_sort, no_source))
2521 return -1;
2522
2523 if (asprintf(&c2c.cl_resort, "offset,%s",
2524 c2c.display == DISPLAY_TOT ?
2525 "tot_hitm" :
2526 c2c.display == DISPLAY_RMT ?
2527 "rmt_hitm,lcl_hitm" :
2528 "lcl_hitm,rmt_hitm") < 0)
2529 return -ENOMEM;
2530
2531 pr_debug("coalesce sort fields: %s\n", c2c.cl_sort);
2532 pr_debug("coalesce resort fields: %s\n", c2c.cl_resort);
2533 pr_debug("coalesce output fields: %s\n", c2c.cl_output);
2534 return 0;
2535 }
2536
2537 static int perf_c2c__report(int argc, const char **argv)
2538 {
2539 struct perf_session *session;
2540 struct ui_progress prog;
2541 struct perf_data_file file = {
2542 .mode = PERF_DATA_MODE_READ,
2543 };
2544 char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
2545 const char *display = NULL;
2546 const char *coalesce = NULL;
2547 bool no_source = false;
2548 const struct option options[] = {
2549 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
2550 "file", "vmlinux pathname"),
2551 OPT_STRING('i', "input", &input_name, "file",
2552 "the input file to process"),
2553 OPT_INCR('N', "node-info", &c2c.node_info,
2554 "show extra node info in report (repeat for more info)"),
2555 #ifdef HAVE_SLANG_SUPPORT
2556 OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
2557 #endif
2558 OPT_BOOLEAN(0, "stats", &c2c.stats_only,
2559 "Display only statistic tables (implies --stdio)"),
2560 OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full,
2561 "Display full length of symbols"),
2562 OPT_BOOLEAN(0, "no-source", &no_source,
2563 "Do not display Source Line column"),
2564 OPT_BOOLEAN(0, "show-all", &c2c.show_all,
2565 "Show all captured HITM lines."),
2566 OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
2567 "print_type,threshold[,print_limit],order,sort_key[,branch],value",
2568 callchain_help, &parse_callchain_opt,
2569 callchain_default_opt),
2570 OPT_STRING('d', "display", &display, "Switch HITM output type", "lcl,rmt"),
2571 OPT_STRING('c', "coalesce", &coalesce, "coalesce fields",
2572 "coalesce fields: pid,tid,iaddr,dso"),
2573 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
2574 OPT_PARENT(c2c_options),
2575 OPT_END()
2576 };
2577 int err = 0;
2578
2579 argc = parse_options(argc, argv, options, report_c2c_usage,
2580 PARSE_OPT_STOP_AT_NON_OPTION);
2581 if (argc)
2582 usage_with_options(report_c2c_usage, options);
2583
2584 if (c2c.stats_only)
2585 c2c.use_stdio = true;
2586
2587 if (!input_name || !strlen(input_name))
2588 input_name = "perf.data";
2589
2590 file.path = input_name;
2591 file.force = symbol_conf.force;
2592
2593 err = setup_display(display);
2594 if (err)
2595 goto out;
2596
2597 err = setup_coalesce(coalesce, no_source);
2598 if (err) {
2599 pr_debug("Failed to initialize hists\n");
2600 goto out;
2601 }
2602
2603 err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
2604 if (err) {
2605 pr_debug("Failed to initialize hists\n");
2606 goto out;
2607 }
2608
2609 session = perf_session__new(&file, 0, &c2c.tool);
2610 if (session == NULL) {
2611 pr_debug("No memory for session\n");
2612 goto out;
2613 }
2614
2615 err = setup_nodes(session);
2616 if (err) {
2617 pr_err("Failed setup nodes\n");
2618 goto out;
2619 }
2620
2621 err = setup_callchain(session->evlist);
2622 if (err)
2623 goto out_session;
2624
2625 if (symbol__init(&session->header.env) < 0)
2626 goto out_session;
2627
2628 /* No pipe support at the moment. */
2629 if (perf_data_file__is_pipe(session->file)) {
2630 pr_debug("No pipe support at the moment.\n");
2631 goto out_session;
2632 }
2633
2634 if (c2c.use_stdio)
2635 use_browser = 0;
2636 else
2637 use_browser = 1;
2638
2639 setup_browser(false);
2640
2641 err = perf_session__process_events(session);
2642 if (err) {
2643 pr_err("failed to process sample\n");
2644 goto out_session;
2645 }
2646
2647 c2c_hists__reinit(&c2c.hists,
2648 "cl_idx,"
2649 "dcacheline,"
2650 "tot_recs,"
2651 "percent_hitm,"
2652 "tot_hitm,lcl_hitm,rmt_hitm,"
2653 "stores,stores_l1hit,stores_l1miss,"
2654 "dram_lcl,dram_rmt,"
2655 "ld_llcmiss,"
2656 "tot_loads,"
2657 "ld_fbhit,ld_l1hit,ld_l2hit,"
2658 "ld_lclhit,ld_rmthit",
2659 c2c.display == DISPLAY_TOT ? "tot_hitm" :
2660 c2c.display == DISPLAY_LCL ? "lcl_hitm" : "rmt_hitm"
2661 );
2662
2663 ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
2664
2665 hists__collapse_resort(&c2c.hists.hists, NULL);
2666 hists__output_resort_cb(&c2c.hists.hists, &prog, resort_hitm_cb);
2667 hists__iterate_cb(&c2c.hists.hists, resort_cl_cb);
2668
2669 ui_progress__finish();
2670
2671 ui_quirks();
2672
2673 perf_c2c_display(session);
2674
2675 out_session:
2676 perf_session__delete(session);
2677 out:
2678 return err;
2679 }
2680
2681 static int parse_record_events(const struct option *opt,
2682 const char *str, int unset __maybe_unused)
2683 {
2684 bool *event_set = (bool *) opt->value;
2685
2686 *event_set = true;
2687 return perf_mem_events__parse(str);
2688 }
2689
2690
2691 static const char * const __usage_record[] = {
2692 "perf c2c record [<options>] [<command>]",
2693 "perf c2c record [<options>] -- <command> [<options>]",
2694 NULL
2695 };
2696
2697 static const char * const *record_mem_usage = __usage_record;
2698
2699 static int perf_c2c__record(int argc, const char **argv)
2700 {
2701 int rec_argc, i = 0, j;
2702 const char **rec_argv;
2703 int ret;
2704 bool all_user = false, all_kernel = false;
2705 bool event_set = false;
2706 struct option options[] = {
2707 OPT_CALLBACK('e', "event", &event_set, "event",
2708 "event selector. Use 'perf mem record -e list' to list available events",
2709 parse_record_events),
2710 OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
2711 OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
2712 OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
2713 OPT_PARENT(c2c_options),
2714 OPT_END()
2715 };
2716
2717 if (perf_mem_events__init()) {
2718 pr_err("failed: memory events not supported\n");
2719 return -1;
2720 }
2721
2722 argc = parse_options(argc, argv, options, record_mem_usage,
2723 PARSE_OPT_KEEP_UNKNOWN);
2724
2725 rec_argc = argc + 10; /* max number of arguments */
2726 rec_argv = calloc(rec_argc + 1, sizeof(char *));
2727 if (!rec_argv)
2728 return -1;
2729
2730 rec_argv[i++] = "record";
2731
2732 if (!event_set) {
2733 perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
2734 perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
2735 }
2736
2737 if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
2738 rec_argv[i++] = "-W";
2739
2740 rec_argv[i++] = "-d";
2741 rec_argv[i++] = "--sample-cpu";
2742
2743 for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
2744 if (!perf_mem_events[j].record)
2745 continue;
2746
2747 if (!perf_mem_events[j].supported) {
2748 pr_err("failed: event '%s' not supported\n",
2749 perf_mem_events[j].name);
2750 free(rec_argv);
2751 return -1;
2752 }
2753
2754 rec_argv[i++] = "-e";
2755 rec_argv[i++] = perf_mem_events__name(j);
2756 };
2757
2758 if (all_user)
2759 rec_argv[i++] = "--all-user";
2760
2761 if (all_kernel)
2762 rec_argv[i++] = "--all-kernel";
2763
2764 for (j = 0; j < argc; j++, i++)
2765 rec_argv[i] = argv[j];
2766
2767 if (verbose > 0) {
2768 pr_debug("calling: ");
2769
2770 j = 0;
2771
2772 while (rec_argv[j]) {
2773 pr_debug("%s ", rec_argv[j]);
2774 j++;
2775 }
2776 pr_debug("\n");
2777 }
2778
2779 ret = cmd_record(i, rec_argv);
2780 free(rec_argv);
2781 return ret;
2782 }
2783
2784 int cmd_c2c(int argc, const char **argv)
2785 {
2786 argc = parse_options(argc, argv, c2c_options, c2c_usage,
2787 PARSE_OPT_STOP_AT_NON_OPTION);
2788
2789 if (!argc)
2790 usage_with_options(c2c_usage, c2c_options);
2791
2792 if (!strncmp(argv[0], "rec", 3)) {
2793 return perf_c2c__record(argc, argv);
2794 } else if (!strncmp(argv[0], "rep", 3)) {
2795 return perf_c2c__report(argc, argv);
2796 } else {
2797 usage_with_options(c2c_usage, c2c_options);
2798 }
2799
2800 return 0;
2801 }
Arne's tree of linux kernel.