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Merge branch 'nvme-4.13' of git://git.infradead.org/nvme into for-linus
[mirror_ubuntu-artful-kernel.git] / tools / perf / util / stat-shadow.c
CommitLineData
f87027b9
JO		 1#include <stdio.h>
2#include "evsel.h"
3#include "stat.h"
4#include "color.h"
fb4605ba 5#include "pmu.h"
37932c18
AK		 6#include "rblist.h"
7#include "evlist.h"
8#include "expr.h"
f87027b9
JO		 9
10enum {
11 CTX_BIT_USER = 1 << 0,
12 CTX_BIT_KERNEL = 1 << 1,
13 CTX_BIT_HV = 1 << 2,
14 CTX_BIT_HOST = 1 << 3,
15 CTX_BIT_IDLE = 1 << 4,
16 CTX_BIT_MAX = 1 << 5,
17};
18
19#define NUM_CTX CTX_BIT_MAX
20
44d49a60
AK		 21/*
22 * AGGR_GLOBAL: Use CPU 0
23 * AGGR_SOCKET: Use first CPU of socket
24 * AGGR_CORE: Use first CPU of core
25 * AGGR_NONE: Use matching CPU
26 * AGGR_THREAD: Not supported?
27 */
f87027b9
JO		 28static struct stats runtime_nsecs_stats[MAX_NR_CPUS];
29static struct stats runtime_cycles_stats[NUM_CTX][MAX_NR_CPUS];
30static struct stats runtime_stalled_cycles_front_stats[NUM_CTX][MAX_NR_CPUS];
31static struct stats runtime_stalled_cycles_back_stats[NUM_CTX][MAX_NR_CPUS];
32static struct stats runtime_branches_stats[NUM_CTX][MAX_NR_CPUS];
33static struct stats runtime_cacherefs_stats[NUM_CTX][MAX_NR_CPUS];
34static struct stats runtime_l1_dcache_stats[NUM_CTX][MAX_NR_CPUS];
35static struct stats runtime_l1_icache_stats[NUM_CTX][MAX_NR_CPUS];
36static struct stats runtime_ll_cache_stats[NUM_CTX][MAX_NR_CPUS];
37static struct stats runtime_itlb_cache_stats[NUM_CTX][MAX_NR_CPUS];
38static struct stats runtime_dtlb_cache_stats[NUM_CTX][MAX_NR_CPUS];
39static struct stats runtime_cycles_in_tx_stats[NUM_CTX][MAX_NR_CPUS];
40static struct stats runtime_transaction_stats[NUM_CTX][MAX_NR_CPUS];
41static struct stats runtime_elision_stats[NUM_CTX][MAX_NR_CPUS];
239bd47f
AK		 42static struct stats runtime_topdown_total_slots[NUM_CTX][MAX_NR_CPUS];
43static struct stats runtime_topdown_slots_issued[NUM_CTX][MAX_NR_CPUS];
44static struct stats runtime_topdown_slots_retired[NUM_CTX][MAX_NR_CPUS];
45static struct stats runtime_topdown_fetch_bubbles[NUM_CTX][MAX_NR_CPUS];
46static struct stats runtime_topdown_recovery_bubbles[NUM_CTX][MAX_NR_CPUS];
daefd0bc
KL		 47static struct stats runtime_smi_num_stats[NUM_CTX][MAX_NR_CPUS];
48static struct stats runtime_aperf_stats[NUM_CTX][MAX_NR_CPUS];
37932c18 49static struct rblist runtime_saved_values;
fb4605ba 50static bool have_frontend_stalled;
f87027b9
JO		 51
52struct stats walltime_nsecs_stats;
53
37932c18
AK		 54struct saved_value {
55 struct rb_node rb_node;
56 struct perf_evsel *evsel;
57 int cpu;
58 int ctx;
59 struct stats stats;
60};
61
62static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
63{
64 struct saved_value *a = container_of(rb_node,
65 struct saved_value,
66 rb_node);
67 const struct saved_value *b = entry;
68
69 if (a->ctx != b->ctx)
70 return a->ctx - b->ctx;
71 if (a->cpu != b->cpu)
72 return a->cpu - b->cpu;
73 return a->evsel - b->evsel;
74}
75
76static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
77 const void *entry)
78{
79 struct saved_value *nd = malloc(sizeof(struct saved_value));
80
81 if (!nd)
82 return NULL;
83 memcpy(nd, entry, sizeof(struct saved_value));
84 return &nd->rb_node;
85}
86
87static struct saved_value *saved_value_lookup(struct perf_evsel *evsel,
88 int cpu, int ctx,
89 bool create)
90{
91 struct rb_node *nd;
92 struct saved_value dm = {
93 .cpu = cpu,
94 .ctx = ctx,
95 .evsel = evsel,
96 };
97 nd = rblist__find(&runtime_saved_values, &dm);
98 if (nd)
99 return container_of(nd, struct saved_value, rb_node);
100 if (create) {
101 rblist__add_node(&runtime_saved_values, &dm);
102 nd = rblist__find(&runtime_saved_values, &dm);
103 if (nd)
104 return container_of(nd, struct saved_value, rb_node);
105 }
106 return NULL;
107}
108
fb4605ba
AK		 109void perf_stat__init_shadow_stats(void)
110{
111 have_frontend_stalled = pmu_have_event("cpu", "stalled-cycles-frontend");
37932c18
AK		 112 rblist__init(&runtime_saved_values);
113 runtime_saved_values.node_cmp = saved_value_cmp;
114 runtime_saved_values.node_new = saved_value_new;
115 /* No delete for now */
fb4605ba
AK		 116}
117
f87027b9
JO		 118static int evsel_context(struct perf_evsel *evsel)
119{
120 int ctx = 0;
121
122 if (evsel->attr.exclude_kernel)
123 ctx |= CTX_BIT_KERNEL;
124 if (evsel->attr.exclude_user)
125 ctx |= CTX_BIT_USER;
126 if (evsel->attr.exclude_hv)
127 ctx |= CTX_BIT_HV;
128 if (evsel->attr.exclude_host)
129 ctx |= CTX_BIT_HOST;
130 if (evsel->attr.exclude_idle)
131 ctx |= CTX_BIT_IDLE;
132
133 return ctx;
134}
135
136void perf_stat__reset_shadow_stats(void)
137{
37932c18
AK		 138 struct rb_node *pos, *next;
139
f87027b9
JO		 140 memset(runtime_nsecs_stats, 0, sizeof(runtime_nsecs_stats));
141 memset(runtime_cycles_stats, 0, sizeof(runtime_cycles_stats));
142 memset(runtime_stalled_cycles_front_stats, 0, sizeof(runtime_stalled_cycles_front_stats));
143 memset(runtime_stalled_cycles_back_stats, 0, sizeof(runtime_stalled_cycles_back_stats));
144 memset(runtime_branches_stats, 0, sizeof(runtime_branches_stats));
145 memset(runtime_cacherefs_stats, 0, sizeof(runtime_cacherefs_stats));
146 memset(runtime_l1_dcache_stats, 0, sizeof(runtime_l1_dcache_stats));
147 memset(runtime_l1_icache_stats, 0, sizeof(runtime_l1_icache_stats));
148 memset(runtime_ll_cache_stats, 0, sizeof(runtime_ll_cache_stats));
149 memset(runtime_itlb_cache_stats, 0, sizeof(runtime_itlb_cache_stats));
150 memset(runtime_dtlb_cache_stats, 0, sizeof(runtime_dtlb_cache_stats));
151 memset(runtime_cycles_in_tx_stats, 0,
152 sizeof(runtime_cycles_in_tx_stats));
153 memset(runtime_transaction_stats, 0,
154 sizeof(runtime_transaction_stats));
155 memset(runtime_elision_stats, 0, sizeof(runtime_elision_stats));
156 memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
239bd47f
AK		 157 memset(runtime_topdown_total_slots, 0, sizeof(runtime_topdown_total_slots));
158 memset(runtime_topdown_slots_retired, 0, sizeof(runtime_topdown_slots_retired));
159 memset(runtime_topdown_slots_issued, 0, sizeof(runtime_topdown_slots_issued));
160 memset(runtime_topdown_fetch_bubbles, 0, sizeof(runtime_topdown_fetch_bubbles));
161 memset(runtime_topdown_recovery_bubbles, 0, sizeof(runtime_topdown_recovery_bubbles));
daefd0bc
KL		 162 memset(runtime_smi_num_stats, 0, sizeof(runtime_smi_num_stats));
163 memset(runtime_aperf_stats, 0, sizeof(runtime_aperf_stats));
37932c18
AK		 164
165 next = rb_first(&runtime_saved_values.entries);
166 while (next) {
167 pos = next;
168 next = rb_next(pos);
169 memset(&container_of(pos, struct saved_value, rb_node)->stats,
170 0,
171 sizeof(struct stats));
172 }
f87027b9
JO		 173}
174
175/*
176 * Update various tracking values we maintain to print
177 * more semantic information such as miss/hit ratios,
178 * instruction rates, etc:
179 */
180void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
181 int cpu)
182{
183 int ctx = evsel_context(counter);
184
daf4f478
NK		 185 if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK) ||
186 perf_evsel__match(counter, SOFTWARE, SW_CPU_CLOCK))
f87027b9
JO		 187 update_stats(&runtime_nsecs_stats[cpu], count[0]);
188 else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
189 update_stats(&runtime_cycles_stats[ctx][cpu], count[0]);
190 else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
54976285 191 update_stats(&runtime_cycles_in_tx_stats[ctx][cpu], count[0]);
f87027b9
JO		 192 else if (perf_stat_evsel__is(counter, TRANSACTION_START))
193 update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
194 else if (perf_stat_evsel__is(counter, ELISION_START))
195 update_stats(&runtime_elision_stats[ctx][cpu], count[0]);
239bd47f
AK		 196 else if (perf_stat_evsel__is(counter, TOPDOWN_TOTAL_SLOTS))
197 update_stats(&runtime_topdown_total_slots[ctx][cpu], count[0]);
198 else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_ISSUED))
199 update_stats(&runtime_topdown_slots_issued[ctx][cpu], count[0]);
200 else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_RETIRED))
201 update_stats(&runtime_topdown_slots_retired[ctx][cpu], count[0]);
202 else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_BUBBLES))
203 update_stats(&runtime_topdown_fetch_bubbles[ctx][cpu],count[0]);
204 else if (perf_stat_evsel__is(counter, TOPDOWN_RECOVERY_BUBBLES))
205 update_stats(&runtime_topdown_recovery_bubbles[ctx][cpu], count[0]);
f87027b9
JO		 206 else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
207 update_stats(&runtime_stalled_cycles_front_stats[ctx][cpu], count[0]);
208 else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
209 update_stats(&runtime_stalled_cycles_back_stats[ctx][cpu], count[0]);
210 else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
211 update_stats(&runtime_branches_stats[ctx][cpu], count[0]);
212 else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
213 update_stats(&runtime_cacherefs_stats[ctx][cpu], count[0]);
214 else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
215 update_stats(&runtime_l1_dcache_stats[ctx][cpu], count[0]);
216 else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
217 update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);
218 else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))
219 update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);
220 else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
221 update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);
222 else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
223 update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);
daefd0bc
KL		 224 else if (perf_stat_evsel__is(counter, SMI_NUM))
225 update_stats(&runtime_smi_num_stats[ctx][cpu], count[0]);
226 else if (perf_stat_evsel__is(counter, APERF))
227 update_stats(&runtime_aperf_stats[ctx][cpu], count[0]);
37932c18
AK		 228
229 if (counter->collect_stat) {
230 struct saved_value *v = saved_value_lookup(counter, cpu, ctx,
231 true);
232 update_stats(&v->stats, count[0]);
233 }
f87027b9
JO		 234}
235
236/* used for get_ratio_color() */
237enum grc_type {
238 GRC_STALLED_CYCLES_FE,
239 GRC_STALLED_CYCLES_BE,
240 GRC_CACHE_MISSES,
241 GRC_MAX_NR
242};
243
244static const char *get_ratio_color(enum grc_type type, double ratio)
245{
246 static const double grc_table[GRC_MAX_NR][3] = {
247 [GRC_STALLED_CYCLES_FE] = { 50.0, 30.0, 10.0 },
248 [GRC_STALLED_CYCLES_BE] = { 75.0, 50.0, 20.0 },
249 [GRC_CACHE_MISSES] = { 20.0, 10.0, 5.0 },
250 };
251 const char *color = PERF_COLOR_NORMAL;
252
253 if (ratio > grc_table[type][0])
254 color = PERF_COLOR_RED;
255 else if (ratio > grc_table[type][1])
256 color = PERF_COLOR_MAGENTA;
257 else if (ratio > grc_table[type][2])
258 color = PERF_COLOR_YELLOW;
259
260 return color;
261}
262
37932c18
AK		 263static struct perf_evsel *perf_stat__find_event(struct perf_evlist *evsel_list,
264 const char *name)
265{
266 struct perf_evsel *c2;
267
268 evlist__for_each_entry (evsel_list, c2) {
269 if (!strcasecmp(c2->name, name))
270 return c2;
271 }
272 return NULL;
273}
274
275/* Mark MetricExpr target events and link events using them to them. */
276void perf_stat__collect_metric_expr(struct perf_evlist *evsel_list)
277{
278 struct perf_evsel *counter, *leader, **metric_events, *oc;
279 bool found;
280 const char **metric_names;
281 int i;
282 int num_metric_names;
283
284 evlist__for_each_entry(evsel_list, counter) {
285 bool invalid = false;
286
287 leader = counter->leader;
288 if (!counter->metric_expr)
289 continue;
290 metric_events = counter->metric_events;
291 if (!metric_events) {
292 if (expr__find_other(counter->metric_expr, counter->name,
293 &metric_names, &num_metric_names) < 0)
294 continue;
295
296 metric_events = calloc(sizeof(struct perf_evsel *),
297 num_metric_names + 1);
298 if (!metric_events)
299 return;
300 counter->metric_events = metric_events;
301 }
302
303 for (i = 0; i < num_metric_names; i++) {
304 found = false;
305 if (leader) {
306 /* Search in group */
307 for_each_group_member (oc, leader) {
308 if (!strcasecmp(oc->name, metric_names[i])) {
309 found = true;
310 break;
311 }
312 }
313 }
314 if (!found) {
315 /* Search ignoring groups */
316 oc = perf_stat__find_event(evsel_list, metric_names[i]);
317 }
318 if (!oc) {
319 /* Deduping one is good enough to handle duplicated PMUs. */
320 static char *printed;
321
322 /*
323 * Adding events automatically would be difficult, because
324 * it would risk creating groups that are not schedulable.
325 * perf stat doesn't understand all the scheduling constraints
326 * of events. So we ask the user instead to add the missing
327 * events.
328 */
329 if (!printed || strcasecmp(printed, metric_names[i])) {
330 fprintf(stderr,
331 "Add %s event to groups to get metric expression for %s\n",
332 metric_names[i],
333 counter->name);
334 printed = strdup(metric_names[i]);
335 }
336 invalid = true;
337 continue;
338 }
339 metric_events[i] = oc;
340 oc->collect_stat = true;
341 }
342 metric_events[i] = NULL;
343 free(metric_names);
344 if (invalid) {
345 free(metric_events);
346 counter->metric_events = NULL;
347 counter->metric_expr = NULL;
348 }
349 }
350}
351
140aeadc 352static void print_stalled_cycles_frontend(int cpu,
b8f8eb84 353 struct perf_evsel *evsel, double avg,
140aeadc 354 struct perf_stat_output_ctx *out)
f87027b9
JO		 355{
356 double total, ratio = 0.0;
357 const char *color;
358 int ctx = evsel_context(evsel);
359
360 total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
361
362 if (total)
363 ratio = avg / total * 100.0;
364
365 color = get_ratio_color(GRC_STALLED_CYCLES_FE, ratio);
366
140aeadc
AK		 367 if (ratio)
368 out->print_metric(out->ctx, color, "%7.2f%%", "frontend cycles idle",
369 ratio);
370 else
371 out->print_metric(out->ctx, NULL, NULL, "frontend cycles idle", 0);
f87027b9
JO		 372}
373
140aeadc 374static void print_stalled_cycles_backend(int cpu,
b8f8eb84 375 struct perf_evsel *evsel, double avg,
140aeadc 376 struct perf_stat_output_ctx *out)
f87027b9
JO		 377{
378 double total, ratio = 0.0;
379 const char *color;
380 int ctx = evsel_context(evsel);
381
382 total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
383
384 if (total)
385 ratio = avg / total * 100.0;
386
387 color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);
388
b0404be8 389 out->print_metric(out->ctx, color, "%7.2f%%", "backend cycles idle", ratio);
f87027b9
JO		 390}
391
140aeadc 392static void print_branch_misses(int cpu,
b8f8eb84 393 struct perf_evsel *evsel,
140aeadc
AK		 394 double avg,
395 struct perf_stat_output_ctx *out)
f87027b9
JO		 396{
397 double total, ratio = 0.0;
398 const char *color;
399 int ctx = evsel_context(evsel);
400
401 total = avg_stats(&runtime_branches_stats[ctx][cpu]);
402
403 if (total)
404 ratio = avg / total * 100.0;
405
406 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
407
140aeadc 408 out->print_metric(out->ctx, color, "%7.2f%%", "of all branches", ratio);
f87027b9
JO		 409}
410
140aeadc 411static void print_l1_dcache_misses(int cpu,
b8f8eb84 412 struct perf_evsel *evsel,
140aeadc
AK		 413 double avg,
414 struct perf_stat_output_ctx *out)
f87027b9
JO		 415{
416 double total, ratio = 0.0;
417 const char *color;
418 int ctx = evsel_context(evsel);
419
420 total = avg_stats(&runtime_l1_dcache_stats[ctx][cpu]);
421
422 if (total)
423 ratio = avg / total * 100.0;
424
425 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
426
140aeadc 427 out->print_metric(out->ctx, color, "%7.2f%%", "of all L1-dcache hits", ratio);
f87027b9
JO		 428}
429
140aeadc 430static void print_l1_icache_misses(int cpu,
b8f8eb84 431 struct perf_evsel *evsel,
140aeadc
AK		 432 double avg,
433 struct perf_stat_output_ctx *out)
f87027b9
JO		 434{
435 double total, ratio = 0.0;
436 const char *color;
437 int ctx = evsel_context(evsel);
438
439 total = avg_stats(&runtime_l1_icache_stats[ctx][cpu]);
440
441 if (total)
442 ratio = avg / total * 100.0;
443
444 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
140aeadc 445 out->print_metric(out->ctx, color, "%7.2f%%", "of all L1-icache hits", ratio);
f87027b9
JO		 446}
447
140aeadc 448static void print_dtlb_cache_misses(int cpu,
b8f8eb84 449 struct perf_evsel *evsel,
140aeadc
AK		 450 double avg,
451 struct perf_stat_output_ctx *out)
f87027b9
JO		 452{
453 double total, ratio = 0.0;
454 const char *color;
455 int ctx = evsel_context(evsel);
456
457 total = avg_stats(&runtime_dtlb_cache_stats[ctx][cpu]);
458
459 if (total)
460 ratio = avg / total * 100.0;
461
462 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
140aeadc 463 out->print_metric(out->ctx, color, "%7.2f%%", "of all dTLB cache hits", ratio);
f87027b9
JO		 464}
465
140aeadc 466static void print_itlb_cache_misses(int cpu,
b8f8eb84 467 struct perf_evsel *evsel,
140aeadc
AK		 468 double avg,
469 struct perf_stat_output_ctx *out)
f87027b9
JO		 470{
471 double total, ratio = 0.0;
472 const char *color;
473 int ctx = evsel_context(evsel);
474
475 total = avg_stats(&runtime_itlb_cache_stats[ctx][cpu]);
476
477 if (total)
478 ratio = avg / total * 100.0;
479
480 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
140aeadc 481 out->print_metric(out->ctx, color, "%7.2f%%", "of all iTLB cache hits", ratio);
f87027b9
JO		 482}
483
140aeadc 484static void print_ll_cache_misses(int cpu,
b8f8eb84 485 struct perf_evsel *evsel,
140aeadc
AK		 486 double avg,
487 struct perf_stat_output_ctx *out)
f87027b9
JO		 488{
489 double total, ratio = 0.0;
490 const char *color;
491 int ctx = evsel_context(evsel);
492
493 total = avg_stats(&runtime_ll_cache_stats[ctx][cpu]);
494
495 if (total)
496 ratio = avg / total * 100.0;
497
498 color = get_ratio_color(GRC_CACHE_MISSES, ratio);
140aeadc 499 out->print_metric(out->ctx, color, "%7.2f%%", "of all LL-cache hits", ratio);
f87027b9
JO		 500}
501
239bd47f
AK		 502/*
503 * High level "TopDown" CPU core pipe line bottleneck break down.
504 *
505 * Basic concept following
506 * Yasin, A Top Down Method for Performance analysis and Counter architecture
507 * ISPASS14
508 *
509 * The CPU pipeline is divided into 4 areas that can be bottlenecks:
510 *
511 * Frontend -> Backend -> Retiring
512 * BadSpeculation in addition means out of order execution that is thrown away
513 * (for example branch mispredictions)
514 * Frontend is instruction decoding.
515 * Backend is execution, like computation and accessing data in memory
516 * Retiring is good execution that is not directly bottlenecked
517 *
518 * The formulas are computed in slots.
519 * A slot is an entry in the pipeline each for the pipeline width
520 * (for example a 4-wide pipeline has 4 slots for each cycle)
521 *
522 * Formulas:
523 * BadSpeculation = ((SlotsIssued - SlotsRetired) + RecoveryBubbles) /
524 * TotalSlots
525 * Retiring = SlotsRetired / TotalSlots
526 * FrontendBound = FetchBubbles / TotalSlots
527 * BackendBound = 1.0 - BadSpeculation - Retiring - FrontendBound
528 *
529 * The kernel provides the mapping to the low level CPU events and any scaling
530 * needed for the CPU pipeline width, for example:
531 *
532 * TotalSlots = Cycles * 4
533 *
534 * The scaling factor is communicated in the sysfs unit.
535 *
536 * In some cases the CPU may not be able to measure all the formulas due to
537 * missing events. In this case multiple formulas are combined, as possible.
538 *
539 * Full TopDown supports more levels to sub-divide each area: for example
540 * BackendBound into computing bound and memory bound. For now we only
541 * support Level 1 TopDown.
542 */
543
544static double sanitize_val(double x)
545{
546 if (x < 0 && x >= -0.02)
547 return 0.0;
548 return x;
549}
550
551static double td_total_slots(int ctx, int cpu)
552{
553 return avg_stats(&runtime_topdown_total_slots[ctx][cpu]);
554}
555
556static double td_bad_spec(int ctx, int cpu)
557{
558 double bad_spec = 0;
559 double total_slots;
560 double total;
561
562 total = avg_stats(&runtime_topdown_slots_issued[ctx][cpu]) -
563 avg_stats(&runtime_topdown_slots_retired[ctx][cpu]) +
564 avg_stats(&runtime_topdown_recovery_bubbles[ctx][cpu]);
565 total_slots = td_total_slots(ctx, cpu);
566 if (total_slots)
567 bad_spec = total / total_slots;
568 return sanitize_val(bad_spec);
569}
570
571static double td_retiring(int ctx, int cpu)
572{
573 double retiring = 0;
574 double total_slots = td_total_slots(ctx, cpu);
575 double ret_slots = avg_stats(&runtime_topdown_slots_retired[ctx][cpu]);
576
577 if (total_slots)
578 retiring = ret_slots / total_slots;
579 return retiring;
580}
581
582static double td_fe_bound(int ctx, int cpu)
583{
584 double fe_bound = 0;
585 double total_slots = td_total_slots(ctx, cpu);
586 double fetch_bub = avg_stats(&runtime_topdown_fetch_bubbles[ctx][cpu]);
587
588 if (total_slots)
589 fe_bound = fetch_bub / total_slots;
590 return fe_bound;
591}
592
593static double td_be_bound(int ctx, int cpu)
594{
595 double sum = (td_fe_bound(ctx, cpu) +
596 td_bad_spec(ctx, cpu) +
597 td_retiring(ctx, cpu));
598 if (sum == 0)
599 return 0;
600 return sanitize_val(1.0 - sum);
601}
602
daefd0bc
KL		 603static void print_smi_cost(int cpu, struct perf_evsel *evsel,
604 struct perf_stat_output_ctx *out)
605{
606 double smi_num, aperf, cycles, cost = 0.0;
607 int ctx = evsel_context(evsel);
608 const char *color = NULL;
609
610 smi_num = avg_stats(&runtime_smi_num_stats[ctx][cpu]);
611 aperf = avg_stats(&runtime_aperf_stats[ctx][cpu]);
612 cycles = avg_stats(&runtime_cycles_stats[ctx][cpu]);
613
614 if ((cycles == 0) || (aperf == 0))
615 return;
616
617 if (smi_num)
618 cost = (aperf - cycles) / aperf * 100.00;
619
620 if (cost > 10)
621 color = PERF_COLOR_RED;
622 out->print_metric(out->ctx, color, "%8.1f%%", "SMI cycles%", cost);
623 out->print_metric(out->ctx, NULL, "%4.0f", "SMI#", smi_num);
624}
625
140aeadc
AK		 626void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
627 double avg, int cpu,
628 struct perf_stat_output_ctx *out)
f87027b9 629{
140aeadc
AK		 630 void *ctxp = out->ctx;
631 print_metric_t print_metric = out->print_metric;
f87027b9 632 double total, ratio = 0.0, total2;
239bd47f 633 const char *color = NULL;
f87027b9
JO		 634 int ctx = evsel_context(evsel);
635
636 if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
637 total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
638 if (total) {
639 ratio = avg / total;
140aeadc
AK		 640 print_metric(ctxp, NULL, "%7.2f ",
641 "insn per cycle", ratio);
f87027b9 642 } else {
140aeadc 643 print_metric(ctxp, NULL, NULL, "insn per cycle", 0);
f87027b9
JO		 644 }
645 total = avg_stats(&runtime_stalled_cycles_front_stats[ctx][cpu]);
646 total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[ctx][cpu]));
647
648 if (total && avg) {
92a61f64 649 out->new_line(ctxp);
f87027b9 650 ratio = total / avg;
140aeadc
AK		 651 print_metric(ctxp, NULL, "%7.2f ",
652 "stalled cycles per insn",
653 ratio);
fb4605ba 654 } else if (have_frontend_stalled) {
140aeadc
AK		 655 print_metric(ctxp, NULL, NULL,
656 "stalled cycles per insn", 0);
f87027b9 657 }
140aeadc
AK		 658 } else if (perf_evsel__match(evsel, HARDWARE, HW_BRANCH_MISSES)) {
659 if (runtime_branches_stats[ctx][cpu].n != 0)
660 print_branch_misses(cpu, evsel, avg, out);
661 else
662 print_metric(ctxp, NULL, NULL, "of all branches", 0);
f87027b9
JO		 663 } else if (
664 evsel->attr.type == PERF_TYPE_HW_CACHE &&
665 evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1D |
666 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
140aeadc
AK		 667 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
668 if (runtime_l1_dcache_stats[ctx][cpu].n != 0)
669 print_l1_dcache_misses(cpu, evsel, avg, out);
670 else
671 print_metric(ctxp, NULL, NULL, "of all L1-dcache hits", 0);
f87027b9
JO		 672 } else if (
673 evsel->attr.type == PERF_TYPE_HW_CACHE &&
674 evsel->attr.config == ( PERF_COUNT_HW_CACHE_L1I |
675 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
140aeadc
AK		 676 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
677 if (runtime_l1_icache_stats[ctx][cpu].n != 0)
678 print_l1_icache_misses(cpu, evsel, avg, out);
679 else
680 print_metric(ctxp, NULL, NULL, "of all L1-icache hits", 0);
f87027b9
JO		 681 } else if (
682 evsel->attr.type == PERF_TYPE_HW_CACHE &&
683 evsel->attr.config == ( PERF_COUNT_HW_CACHE_DTLB |
684 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
140aeadc
AK		 685 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
686 if (runtime_dtlb_cache_stats[ctx][cpu].n != 0)
687 print_dtlb_cache_misses(cpu, evsel, avg, out);
688 else
689 print_metric(ctxp, NULL, NULL, "of all dTLB cache hits", 0);
f87027b9
JO		 690 } else if (
691 evsel->attr.type == PERF_TYPE_HW_CACHE &&
692 evsel->attr.config == ( PERF_COUNT_HW_CACHE_ITLB |
693 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
140aeadc
AK		 694 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
695 if (runtime_itlb_cache_stats[ctx][cpu].n != 0)
696 print_itlb_cache_misses(cpu, evsel, avg, out);
697 else
698 print_metric(ctxp, NULL, NULL, "of all iTLB cache hits", 0);
f87027b9
JO		 699 } else if (
700 evsel->attr.type == PERF_TYPE_HW_CACHE &&
701 evsel->attr.config == ( PERF_COUNT_HW_CACHE_LL |
702 ((PERF_COUNT_HW_CACHE_OP_READ) << 8) |
140aeadc
AK		 703 ((PERF_COUNT_HW_CACHE_RESULT_MISS) << 16))) {
704 if (runtime_ll_cache_stats[ctx][cpu].n != 0)
705 print_ll_cache_misses(cpu, evsel, avg, out);
706 else
707 print_metric(ctxp, NULL, NULL, "of all LL-cache hits", 0);
708 } else if (perf_evsel__match(evsel, HARDWARE, HW_CACHE_MISSES)) {
f87027b9
JO		 709 total = avg_stats(&runtime_cacherefs_stats[ctx][cpu]);
710
711 if (total)
712 ratio = avg * 100 / total;
713
140aeadc
AK		 714 if (runtime_cacherefs_stats[ctx][cpu].n != 0)
715 print_metric(ctxp, NULL, "%8.3f %%",
716 "of all cache refs", ratio);
717 else
718 print_metric(ctxp, NULL, NULL, "of all cache refs", 0);
f87027b9 719 } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_FRONTEND)) {
140aeadc 720 print_stalled_cycles_frontend(cpu, evsel, avg, out);
f87027b9 721 } else if (perf_evsel__match(evsel, HARDWARE, HW_STALLED_CYCLES_BACKEND)) {
140aeadc 722 print_stalled_cycles_backend(cpu, evsel, avg, out);
f87027b9
JO		 723 } else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
724 total = avg_stats(&runtime_nsecs_stats[cpu]);
725
726 if (total) {
727 ratio = avg / total;
140aeadc 728 print_metric(ctxp, NULL, "%8.3f", "GHz", ratio);
f87027b9 729 } else {
140aeadc 730 print_metric(ctxp, NULL, NULL, "Ghz", 0);
f87027b9
JO		 731 }
732 } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX)) {
733 total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
734 if (total)
140aeadc
AK		 735 print_metric(ctxp, NULL,
736 "%7.2f%%", "transactional cycles",
737 100.0 * (avg / total));
738 else
739 print_metric(ctxp, NULL, NULL, "transactional cycles",
740 0);
f87027b9
JO		 741 } else if (perf_stat_evsel__is(evsel, CYCLES_IN_TX_CP)) {
742 total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
743 total2 = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
744 if (total2 < avg)
745 total2 = avg;
746 if (total)
140aeadc 747 print_metric(ctxp, NULL, "%7.2f%%", "aborted cycles",
f87027b9 748 100.0 * ((total2-avg) / total));
140aeadc
AK		 749 else
750 print_metric(ctxp, NULL, NULL, "aborted cycles", 0);
751 } else if (perf_stat_evsel__is(evsel, TRANSACTION_START)) {
f87027b9
JO		 752 total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
753
54976285 754 if (avg)
f87027b9
JO		 755 ratio = total / avg;
756
140aeadc
AK		 757 if (runtime_cycles_in_tx_stats[ctx][cpu].n != 0)
758 print_metric(ctxp, NULL, "%8.0f",
759 "cycles / transaction", ratio);
760 else
761 print_metric(ctxp, NULL, NULL, "cycles / transaction",
762 0);
763 } else if (perf_stat_evsel__is(evsel, ELISION_START)) {
f87027b9
JO		 764 total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
765
54976285 766 if (avg)
f87027b9
JO		 767 ratio = total / avg;
768
140aeadc 769 print_metric(ctxp, NULL, "%8.0f", "cycles / elision", ratio);
daf4f478
NK		 770 } else if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK) ||
771 perf_evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK)) {
4579ecc8 772 if ((ratio = avg_stats(&walltime_nsecs_stats)) != 0)
140aeadc
AK		 773 print_metric(ctxp, NULL, "%8.3f", "CPUs utilized",
774 avg / ratio);
4579ecc8 775 else
140aeadc 776 print_metric(ctxp, NULL, NULL, "CPUs utilized", 0);
239bd47f
AK		 777 } else if (perf_stat_evsel__is(evsel, TOPDOWN_FETCH_BUBBLES)) {
778 double fe_bound = td_fe_bound(ctx, cpu);
779
780 if (fe_bound > 0.2)
781 color = PERF_COLOR_RED;
782 print_metric(ctxp, color, "%8.1f%%", "frontend bound",
783 fe_bound * 100.);
784 } else if (perf_stat_evsel__is(evsel, TOPDOWN_SLOTS_RETIRED)) {
785 double retiring = td_retiring(ctx, cpu);
786
787 if (retiring > 0.7)
788 color = PERF_COLOR_GREEN;
789 print_metric(ctxp, color, "%8.1f%%", "retiring",
790 retiring * 100.);
791 } else if (perf_stat_evsel__is(evsel, TOPDOWN_RECOVERY_BUBBLES)) {
792 double bad_spec = td_bad_spec(ctx, cpu);
793
794 if (bad_spec > 0.1)
795 color = PERF_COLOR_RED;
796 print_metric(ctxp, color, "%8.1f%%", "bad speculation",
797 bad_spec * 100.);
798 } else if (perf_stat_evsel__is(evsel, TOPDOWN_SLOTS_ISSUED)) {
799 double be_bound = td_be_bound(ctx, cpu);
800 const char *name = "backend bound";
801 static int have_recovery_bubbles = -1;
802
803 /* In case the CPU does not support topdown-recovery-bubbles */
804 if (have_recovery_bubbles < 0)
805 have_recovery_bubbles = pmu_have_event("cpu",
806 "topdown-recovery-bubbles");
807 if (!have_recovery_bubbles)
808 name = "backend bound/bad spec";
809
810 if (be_bound > 0.2)
811 color = PERF_COLOR_RED;
812 if (td_total_slots(ctx, cpu) > 0)
813 print_metric(ctxp, color, "%8.1f%%", name,
814 be_bound * 100.);
815 else
816 print_metric(ctxp, NULL, NULL, name, 0);
37932c18
AK		 817 } else if (evsel->metric_expr) {
818 struct parse_ctx pctx;
819 int i;
820
821 expr__ctx_init(&pctx);
822 expr__add_id(&pctx, evsel->name, avg);
823 for (i = 0; evsel->metric_events[i]; i++) {
824 struct saved_value *v;
825
826 v = saved_value_lookup(evsel->metric_events[i], cpu, ctx, false);
827 if (!v)
828 break;
829 expr__add_id(&pctx, evsel->metric_events[i]->name,
830 avg_stats(&v->stats));
831 }
832 if (!evsel->metric_events[i]) {
833 const char *p = evsel->metric_expr;
834
835 if (expr__parse(&ratio, &pctx, &p) == 0)
836 print_metric(ctxp, NULL, "%8.1f",
96284814
AK		 837 evsel->metric_name ?
838 evsel->metric_name :
839 out->force_header ? evsel->name : "",
37932c18
AK		 840 ratio);
841 else
842 print_metric(ctxp, NULL, NULL, "", 0);
843 } else
844 print_metric(ctxp, NULL, NULL, "", 0);
f87027b9
JO		 845 } else if (runtime_nsecs_stats[cpu].n != 0) {
846 char unit = 'M';
140aeadc 847 char unit_buf[10];
f87027b9
JO		 848
849 total = avg_stats(&runtime_nsecs_stats[cpu]);
850
851 if (total)
852 ratio = 1000.0 * avg / total;
853 if (ratio < 0.001) {
854 ratio *= 1000;
855 unit = 'K';
856 }
140aeadc
AK		 857 snprintf(unit_buf, sizeof(unit_buf), "%c/sec", unit);
858 print_metric(ctxp, NULL, "%8.3f", unit_buf, ratio);
daefd0bc
KL		 859 } else if (perf_stat_evsel__is(evsel, SMI_NUM)) {
860 print_smi_cost(cpu, evsel, out);
f87027b9 861 } else {
140aeadc 862 print_metric(ctxp, NULL, NULL, NULL, 0);
f87027b9
JO		 863 }
864}
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