]>
Commit | Line | Data |
---|---|---|
ba77c9e1 LZ |
1 | #include "builtin.h" |
2 | #include "perf.h" | |
3 | ||
0f7d2f1b | 4 | #include "util/evlist.h" |
fcf65bf1 | 5 | #include "util/evsel.h" |
ba77c9e1 LZ |
6 | #include "util/util.h" |
7 | #include "util/cache.h" | |
8 | #include "util/symbol.h" | |
9 | #include "util/thread.h" | |
10 | #include "util/header.h" | |
94c744b6 | 11 | #include "util/session.h" |
45694aa7 | 12 | #include "util/tool.h" |
ba77c9e1 LZ |
13 | |
14 | #include "util/parse-options.h" | |
15 | #include "util/trace-event.h" | |
f5fc1412 | 16 | #include "util/data.h" |
4b627957 | 17 | #include "util/cpumap.h" |
ba77c9e1 LZ |
18 | |
19 | #include "util/debug.h" | |
ba77c9e1 LZ |
20 | |
21 | #include <linux/rbtree.h> | |
8d9233f2 | 22 | #include <linux/string.h> |
77cfe388 | 23 | #include <locale.h> |
ba77c9e1 | 24 | |
0d68bc92 NK |
25 | static int kmem_slab; |
26 | static int kmem_page; | |
27 | ||
28 | static long kmem_page_size; | |
29 | ||
ba77c9e1 LZ |
30 | struct alloc_stat; |
31 | typedef int (*sort_fn_t)(struct alloc_stat *, struct alloc_stat *); | |
32 | ||
ba77c9e1 LZ |
33 | static int alloc_flag; |
34 | static int caller_flag; | |
35 | ||
ba77c9e1 LZ |
36 | static int alloc_lines = -1; |
37 | static int caller_lines = -1; | |
38 | ||
7707b6b6 LZ |
39 | static bool raw_ip; |
40 | ||
ba77c9e1 | 41 | struct alloc_stat { |
079d3f65 LZ |
42 | u64 call_site; |
43 | u64 ptr; | |
ba77c9e1 LZ |
44 | u64 bytes_req; |
45 | u64 bytes_alloc; | |
46 | u32 hit; | |
079d3f65 LZ |
47 | u32 pingpong; |
48 | ||
49 | short alloc_cpu; | |
ba77c9e1 LZ |
50 | |
51 | struct rb_node node; | |
52 | }; | |
53 | ||
54 | static struct rb_root root_alloc_stat; | |
55 | static struct rb_root root_alloc_sorted; | |
56 | static struct rb_root root_caller_stat; | |
57 | static struct rb_root root_caller_sorted; | |
58 | ||
59 | static unsigned long total_requested, total_allocated; | |
7d0d3945 | 60 | static unsigned long nr_allocs, nr_cross_allocs; |
ba77c9e1 | 61 | |
2814eb05 ACM |
62 | static int insert_alloc_stat(unsigned long call_site, unsigned long ptr, |
63 | int bytes_req, int bytes_alloc, int cpu) | |
ba77c9e1 LZ |
64 | { |
65 | struct rb_node **node = &root_alloc_stat.rb_node; | |
66 | struct rb_node *parent = NULL; | |
67 | struct alloc_stat *data = NULL; | |
68 | ||
ba77c9e1 LZ |
69 | while (*node) { |
70 | parent = *node; | |
71 | data = rb_entry(*node, struct alloc_stat, node); | |
72 | ||
73 | if (ptr > data->ptr) | |
74 | node = &(*node)->rb_right; | |
75 | else if (ptr < data->ptr) | |
76 | node = &(*node)->rb_left; | |
77 | else | |
78 | break; | |
79 | } | |
80 | ||
81 | if (data && data->ptr == ptr) { | |
82 | data->hit++; | |
83 | data->bytes_req += bytes_req; | |
4efb5290 | 84 | data->bytes_alloc += bytes_alloc; |
ba77c9e1 LZ |
85 | } else { |
86 | data = malloc(sizeof(*data)); | |
2814eb05 ACM |
87 | if (!data) { |
88 | pr_err("%s: malloc failed\n", __func__); | |
89 | return -1; | |
90 | } | |
ba77c9e1 | 91 | data->ptr = ptr; |
079d3f65 | 92 | data->pingpong = 0; |
ba77c9e1 LZ |
93 | data->hit = 1; |
94 | data->bytes_req = bytes_req; | |
95 | data->bytes_alloc = bytes_alloc; | |
96 | ||
97 | rb_link_node(&data->node, parent, node); | |
98 | rb_insert_color(&data->node, &root_alloc_stat); | |
99 | } | |
079d3f65 LZ |
100 | data->call_site = call_site; |
101 | data->alloc_cpu = cpu; | |
2814eb05 | 102 | return 0; |
ba77c9e1 LZ |
103 | } |
104 | ||
2814eb05 | 105 | static int insert_caller_stat(unsigned long call_site, |
ba77c9e1 LZ |
106 | int bytes_req, int bytes_alloc) |
107 | { | |
108 | struct rb_node **node = &root_caller_stat.rb_node; | |
109 | struct rb_node *parent = NULL; | |
110 | struct alloc_stat *data = NULL; | |
111 | ||
ba77c9e1 LZ |
112 | while (*node) { |
113 | parent = *node; | |
114 | data = rb_entry(*node, struct alloc_stat, node); | |
115 | ||
116 | if (call_site > data->call_site) | |
117 | node = &(*node)->rb_right; | |
118 | else if (call_site < data->call_site) | |
119 | node = &(*node)->rb_left; | |
120 | else | |
121 | break; | |
122 | } | |
123 | ||
124 | if (data && data->call_site == call_site) { | |
125 | data->hit++; | |
126 | data->bytes_req += bytes_req; | |
4efb5290 | 127 | data->bytes_alloc += bytes_alloc; |
ba77c9e1 LZ |
128 | } else { |
129 | data = malloc(sizeof(*data)); | |
2814eb05 ACM |
130 | if (!data) { |
131 | pr_err("%s: malloc failed\n", __func__); | |
132 | return -1; | |
133 | } | |
ba77c9e1 | 134 | data->call_site = call_site; |
079d3f65 | 135 | data->pingpong = 0; |
ba77c9e1 LZ |
136 | data->hit = 1; |
137 | data->bytes_req = bytes_req; | |
138 | data->bytes_alloc = bytes_alloc; | |
139 | ||
140 | rb_link_node(&data->node, parent, node); | |
141 | rb_insert_color(&data->node, &root_caller_stat); | |
142 | } | |
2814eb05 ACM |
143 | |
144 | return 0; | |
ba77c9e1 LZ |
145 | } |
146 | ||
2814eb05 | 147 | static int perf_evsel__process_alloc_event(struct perf_evsel *evsel, |
0f7d2f1b | 148 | struct perf_sample *sample) |
ba77c9e1 | 149 | { |
0f7d2f1b ACM |
150 | unsigned long ptr = perf_evsel__intval(evsel, sample, "ptr"), |
151 | call_site = perf_evsel__intval(evsel, sample, "call_site"); | |
152 | int bytes_req = perf_evsel__intval(evsel, sample, "bytes_req"), | |
153 | bytes_alloc = perf_evsel__intval(evsel, sample, "bytes_alloc"); | |
154 | ||
155 | if (insert_alloc_stat(call_site, ptr, bytes_req, bytes_alloc, sample->cpu) || | |
2814eb05 ACM |
156 | insert_caller_stat(call_site, bytes_req, bytes_alloc)) |
157 | return -1; | |
ba77c9e1 LZ |
158 | |
159 | total_requested += bytes_req; | |
160 | total_allocated += bytes_alloc; | |
7d0d3945 | 161 | |
0f7d2f1b ACM |
162 | nr_allocs++; |
163 | return 0; | |
164 | } | |
165 | ||
166 | static int perf_evsel__process_alloc_node_event(struct perf_evsel *evsel, | |
167 | struct perf_sample *sample) | |
168 | { | |
169 | int ret = perf_evsel__process_alloc_event(evsel, sample); | |
170 | ||
171 | if (!ret) { | |
4b627957 | 172 | int node1 = cpu__get_node(sample->cpu), |
0f7d2f1b ACM |
173 | node2 = perf_evsel__intval(evsel, sample, "node"); |
174 | ||
7d0d3945 LZ |
175 | if (node1 != node2) |
176 | nr_cross_allocs++; | |
177 | } | |
0f7d2f1b ACM |
178 | |
179 | return ret; | |
ba77c9e1 LZ |
180 | } |
181 | ||
079d3f65 LZ |
182 | static int ptr_cmp(struct alloc_stat *, struct alloc_stat *); |
183 | static int callsite_cmp(struct alloc_stat *, struct alloc_stat *); | |
184 | ||
185 | static struct alloc_stat *search_alloc_stat(unsigned long ptr, | |
186 | unsigned long call_site, | |
187 | struct rb_root *root, | |
188 | sort_fn_t sort_fn) | |
189 | { | |
190 | struct rb_node *node = root->rb_node; | |
191 | struct alloc_stat key = { .ptr = ptr, .call_site = call_site }; | |
192 | ||
193 | while (node) { | |
194 | struct alloc_stat *data; | |
195 | int cmp; | |
196 | ||
197 | data = rb_entry(node, struct alloc_stat, node); | |
198 | ||
199 | cmp = sort_fn(&key, data); | |
200 | if (cmp < 0) | |
201 | node = node->rb_left; | |
202 | else if (cmp > 0) | |
203 | node = node->rb_right; | |
204 | else | |
205 | return data; | |
206 | } | |
207 | return NULL; | |
208 | } | |
209 | ||
2814eb05 ACM |
210 | static int perf_evsel__process_free_event(struct perf_evsel *evsel, |
211 | struct perf_sample *sample) | |
ba77c9e1 | 212 | { |
0f7d2f1b | 213 | unsigned long ptr = perf_evsel__intval(evsel, sample, "ptr"); |
079d3f65 LZ |
214 | struct alloc_stat *s_alloc, *s_caller; |
215 | ||
079d3f65 LZ |
216 | s_alloc = search_alloc_stat(ptr, 0, &root_alloc_stat, ptr_cmp); |
217 | if (!s_alloc) | |
2814eb05 | 218 | return 0; |
079d3f65 | 219 | |
22ad798c | 220 | if ((short)sample->cpu != s_alloc->alloc_cpu) { |
079d3f65 LZ |
221 | s_alloc->pingpong++; |
222 | ||
223 | s_caller = search_alloc_stat(0, s_alloc->call_site, | |
224 | &root_caller_stat, callsite_cmp); | |
2814eb05 ACM |
225 | if (!s_caller) |
226 | return -1; | |
079d3f65 LZ |
227 | s_caller->pingpong++; |
228 | } | |
229 | s_alloc->alloc_cpu = -1; | |
2814eb05 ACM |
230 | |
231 | return 0; | |
ba77c9e1 LZ |
232 | } |
233 | ||
0d68bc92 NK |
234 | static u64 total_page_alloc_bytes; |
235 | static u64 total_page_free_bytes; | |
236 | static u64 total_page_nomatch_bytes; | |
237 | static u64 total_page_fail_bytes; | |
238 | static unsigned long nr_page_allocs; | |
239 | static unsigned long nr_page_frees; | |
240 | static unsigned long nr_page_fails; | |
241 | static unsigned long nr_page_nomatch; | |
242 | ||
243 | static bool use_pfn; | |
244 | ||
245 | #define MAX_MIGRATE_TYPES 6 | |
246 | #define MAX_PAGE_ORDER 11 | |
247 | ||
248 | static int order_stats[MAX_PAGE_ORDER][MAX_MIGRATE_TYPES]; | |
249 | ||
250 | struct page_stat { | |
251 | struct rb_node node; | |
252 | u64 page; | |
253 | int order; | |
254 | unsigned gfp_flags; | |
255 | unsigned migrate_type; | |
256 | u64 alloc_bytes; | |
257 | u64 free_bytes; | |
258 | int nr_alloc; | |
259 | int nr_free; | |
260 | }; | |
261 | ||
262 | static struct rb_root page_tree; | |
263 | static struct rb_root page_alloc_tree; | |
264 | static struct rb_root page_alloc_sorted; | |
265 | ||
266 | static struct page_stat *search_page(unsigned long page, bool create) | |
267 | { | |
268 | struct rb_node **node = &page_tree.rb_node; | |
269 | struct rb_node *parent = NULL; | |
270 | struct page_stat *data; | |
271 | ||
272 | while (*node) { | |
273 | s64 cmp; | |
274 | ||
275 | parent = *node; | |
276 | data = rb_entry(*node, struct page_stat, node); | |
277 | ||
278 | cmp = data->page - page; | |
279 | if (cmp < 0) | |
280 | node = &parent->rb_left; | |
281 | else if (cmp > 0) | |
282 | node = &parent->rb_right; | |
283 | else | |
284 | return data; | |
285 | } | |
286 | ||
287 | if (!create) | |
288 | return NULL; | |
289 | ||
290 | data = zalloc(sizeof(*data)); | |
291 | if (data != NULL) { | |
292 | data->page = page; | |
293 | ||
294 | rb_link_node(&data->node, parent, node); | |
295 | rb_insert_color(&data->node, &page_tree); | |
296 | } | |
297 | ||
298 | return data; | |
299 | } | |
300 | ||
301 | static int page_stat_cmp(struct page_stat *a, struct page_stat *b) | |
302 | { | |
303 | if (a->page > b->page) | |
304 | return -1; | |
305 | if (a->page < b->page) | |
306 | return 1; | |
307 | if (a->order > b->order) | |
308 | return -1; | |
309 | if (a->order < b->order) | |
310 | return 1; | |
311 | if (a->migrate_type > b->migrate_type) | |
312 | return -1; | |
313 | if (a->migrate_type < b->migrate_type) | |
314 | return 1; | |
315 | if (a->gfp_flags > b->gfp_flags) | |
316 | return -1; | |
317 | if (a->gfp_flags < b->gfp_flags) | |
318 | return 1; | |
319 | return 0; | |
320 | } | |
321 | ||
4ad1f430 | 322 | static struct page_stat *search_page_alloc_stat(struct page_stat *pstat, bool create) |
0d68bc92 NK |
323 | { |
324 | struct rb_node **node = &page_alloc_tree.rb_node; | |
325 | struct rb_node *parent = NULL; | |
326 | struct page_stat *data; | |
327 | ||
328 | while (*node) { | |
329 | s64 cmp; | |
330 | ||
331 | parent = *node; | |
332 | data = rb_entry(*node, struct page_stat, node); | |
333 | ||
4ad1f430 | 334 | cmp = page_stat_cmp(data, pstat); |
0d68bc92 NK |
335 | if (cmp < 0) |
336 | node = &parent->rb_left; | |
337 | else if (cmp > 0) | |
338 | node = &parent->rb_right; | |
339 | else | |
340 | return data; | |
341 | } | |
342 | ||
343 | if (!create) | |
344 | return NULL; | |
345 | ||
346 | data = zalloc(sizeof(*data)); | |
347 | if (data != NULL) { | |
4ad1f430 DA |
348 | data->page = pstat->page; |
349 | data->order = pstat->order; | |
350 | data->gfp_flags = pstat->gfp_flags; | |
351 | data->migrate_type = pstat->migrate_type; | |
0d68bc92 NK |
352 | |
353 | rb_link_node(&data->node, parent, node); | |
354 | rb_insert_color(&data->node, &page_alloc_tree); | |
355 | } | |
356 | ||
357 | return data; | |
358 | } | |
359 | ||
360 | static bool valid_page(u64 pfn_or_page) | |
361 | { | |
362 | if (use_pfn && pfn_or_page == -1UL) | |
363 | return false; | |
364 | if (!use_pfn && pfn_or_page == 0) | |
365 | return false; | |
366 | return true; | |
367 | } | |
368 | ||
369 | static int perf_evsel__process_page_alloc_event(struct perf_evsel *evsel, | |
370 | struct perf_sample *sample) | |
371 | { | |
372 | u64 page; | |
373 | unsigned int order = perf_evsel__intval(evsel, sample, "order"); | |
374 | unsigned int gfp_flags = perf_evsel__intval(evsel, sample, "gfp_flags"); | |
375 | unsigned int migrate_type = perf_evsel__intval(evsel, sample, | |
376 | "migratetype"); | |
377 | u64 bytes = kmem_page_size << order; | |
4ad1f430 | 378 | struct page_stat *pstat; |
0d68bc92 NK |
379 | struct page_stat this = { |
380 | .order = order, | |
381 | .gfp_flags = gfp_flags, | |
382 | .migrate_type = migrate_type, | |
383 | }; | |
384 | ||
385 | if (use_pfn) | |
386 | page = perf_evsel__intval(evsel, sample, "pfn"); | |
387 | else | |
388 | page = perf_evsel__intval(evsel, sample, "page"); | |
389 | ||
390 | nr_page_allocs++; | |
391 | total_page_alloc_bytes += bytes; | |
392 | ||
393 | if (!valid_page(page)) { | |
394 | nr_page_fails++; | |
395 | total_page_fail_bytes += bytes; | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | /* | |
401 | * This is to find the current page (with correct gfp flags and | |
402 | * migrate type) at free event. | |
403 | */ | |
4ad1f430 DA |
404 | pstat = search_page(page, true); |
405 | if (pstat == NULL) | |
0d68bc92 NK |
406 | return -ENOMEM; |
407 | ||
4ad1f430 DA |
408 | pstat->order = order; |
409 | pstat->gfp_flags = gfp_flags; | |
410 | pstat->migrate_type = migrate_type; | |
0d68bc92 NK |
411 | |
412 | this.page = page; | |
4ad1f430 DA |
413 | pstat = search_page_alloc_stat(&this, true); |
414 | if (pstat == NULL) | |
0d68bc92 NK |
415 | return -ENOMEM; |
416 | ||
4ad1f430 DA |
417 | pstat->nr_alloc++; |
418 | pstat->alloc_bytes += bytes; | |
0d68bc92 NK |
419 | |
420 | order_stats[order][migrate_type]++; | |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
425 | static int perf_evsel__process_page_free_event(struct perf_evsel *evsel, | |
426 | struct perf_sample *sample) | |
427 | { | |
428 | u64 page; | |
429 | unsigned int order = perf_evsel__intval(evsel, sample, "order"); | |
430 | u64 bytes = kmem_page_size << order; | |
4ad1f430 | 431 | struct page_stat *pstat; |
0d68bc92 NK |
432 | struct page_stat this = { |
433 | .order = order, | |
434 | }; | |
435 | ||
436 | if (use_pfn) | |
437 | page = perf_evsel__intval(evsel, sample, "pfn"); | |
438 | else | |
439 | page = perf_evsel__intval(evsel, sample, "page"); | |
440 | ||
441 | nr_page_frees++; | |
442 | total_page_free_bytes += bytes; | |
443 | ||
4ad1f430 DA |
444 | pstat = search_page(page, false); |
445 | if (pstat == NULL) { | |
0d68bc92 NK |
446 | pr_debug2("missing free at page %"PRIx64" (order: %d)\n", |
447 | page, order); | |
448 | ||
449 | nr_page_nomatch++; | |
450 | total_page_nomatch_bytes += bytes; | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
455 | this.page = page; | |
4ad1f430 DA |
456 | this.gfp_flags = pstat->gfp_flags; |
457 | this.migrate_type = pstat->migrate_type; | |
0d68bc92 | 458 | |
4ad1f430 DA |
459 | rb_erase(&pstat->node, &page_tree); |
460 | free(pstat); | |
0d68bc92 | 461 | |
4ad1f430 DA |
462 | pstat = search_page_alloc_stat(&this, false); |
463 | if (pstat == NULL) | |
0d68bc92 NK |
464 | return -ENOENT; |
465 | ||
4ad1f430 DA |
466 | pstat->nr_free++; |
467 | pstat->free_bytes += bytes; | |
0d68bc92 NK |
468 | |
469 | return 0; | |
470 | } | |
471 | ||
0f7d2f1b ACM |
472 | typedef int (*tracepoint_handler)(struct perf_evsel *evsel, |
473 | struct perf_sample *sample); | |
ba77c9e1 | 474 | |
1d037ca1 | 475 | static int process_sample_event(struct perf_tool *tool __maybe_unused, |
d20deb64 | 476 | union perf_event *event, |
8115d60c | 477 | struct perf_sample *sample, |
fcf65bf1 | 478 | struct perf_evsel *evsel, |
743eb868 | 479 | struct machine *machine) |
ba77c9e1 | 480 | { |
ef89325f | 481 | struct thread *thread = machine__findnew_thread(machine, sample->pid, |
13ce34df | 482 | sample->tid); |
ba77c9e1 | 483 | |
ba77c9e1 LZ |
484 | if (thread == NULL) { |
485 | pr_debug("problem processing %d event, skipping it.\n", | |
486 | event->header.type); | |
487 | return -1; | |
488 | } | |
489 | ||
b9c5143a | 490 | dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid); |
ba77c9e1 | 491 | |
744a9719 ACM |
492 | if (evsel->handler != NULL) { |
493 | tracepoint_handler f = evsel->handler; | |
0f7d2f1b ACM |
494 | return f(evsel, sample); |
495 | } | |
496 | ||
497 | return 0; | |
ba77c9e1 LZ |
498 | } |
499 | ||
fcf65bf1 ACM |
500 | static struct perf_tool perf_kmem = { |
501 | .sample = process_sample_event, | |
502 | .comm = perf_event__process_comm, | |
64c40908 NK |
503 | .mmap = perf_event__process_mmap, |
504 | .mmap2 = perf_event__process_mmap2, | |
0a8cb85c | 505 | .ordered_events = true, |
ba77c9e1 LZ |
506 | }; |
507 | ||
ba77c9e1 LZ |
508 | static double fragmentation(unsigned long n_req, unsigned long n_alloc) |
509 | { | |
510 | if (n_alloc == 0) | |
511 | return 0.0; | |
512 | else | |
513 | return 100.0 - (100.0 * n_req / n_alloc); | |
514 | } | |
515 | ||
0d68bc92 NK |
516 | static void __print_slab_result(struct rb_root *root, |
517 | struct perf_session *session, | |
518 | int n_lines, int is_caller) | |
ba77c9e1 LZ |
519 | { |
520 | struct rb_node *next; | |
34ba5122 | 521 | struct machine *machine = &session->machines.host; |
ba77c9e1 | 522 | |
65f46e02 | 523 | printf("%.105s\n", graph_dotted_line); |
079d3f65 | 524 | printf(" %-34s |", is_caller ? "Callsite": "Alloc Ptr"); |
47103277 | 525 | printf(" Total_alloc/Per | Total_req/Per | Hit | Ping-pong | Frag\n"); |
65f46e02 | 526 | printf("%.105s\n", graph_dotted_line); |
ba77c9e1 LZ |
527 | |
528 | next = rb_first(root); | |
529 | ||
530 | while (next && n_lines--) { | |
1b145ae5 ACM |
531 | struct alloc_stat *data = rb_entry(next, struct alloc_stat, |
532 | node); | |
533 | struct symbol *sym = NULL; | |
71cf8b8f | 534 | struct map *map; |
079d3f65 | 535 | char buf[BUFSIZ]; |
1b145ae5 ACM |
536 | u64 addr; |
537 | ||
538 | if (is_caller) { | |
539 | addr = data->call_site; | |
7707b6b6 | 540 | if (!raw_ip) |
5c0541d5 | 541 | sym = machine__find_kernel_function(machine, addr, &map, NULL); |
1b145ae5 ACM |
542 | } else |
543 | addr = data->ptr; | |
544 | ||
545 | if (sym != NULL) | |
9486aa38 | 546 | snprintf(buf, sizeof(buf), "%s+%" PRIx64 "", sym->name, |
71cf8b8f | 547 | addr - map->unmap_ip(map, sym->start)); |
1b145ae5 | 548 | else |
9486aa38 | 549 | snprintf(buf, sizeof(buf), "%#" PRIx64 "", addr); |
079d3f65 | 550 | printf(" %-34s |", buf); |
ba77c9e1 | 551 | |
65f46e02 | 552 | printf(" %9llu/%-5lu | %9llu/%-5lu | %8lu | %9lu | %6.3f%%\n", |
079d3f65 | 553 | (unsigned long long)data->bytes_alloc, |
ba77c9e1 LZ |
554 | (unsigned long)data->bytes_alloc / data->hit, |
555 | (unsigned long long)data->bytes_req, | |
556 | (unsigned long)data->bytes_req / data->hit, | |
557 | (unsigned long)data->hit, | |
079d3f65 | 558 | (unsigned long)data->pingpong, |
ba77c9e1 LZ |
559 | fragmentation(data->bytes_req, data->bytes_alloc)); |
560 | ||
561 | next = rb_next(next); | |
562 | } | |
563 | ||
564 | if (n_lines == -1) | |
65f46e02 | 565 | printf(" ... | ... | ... | ... | ... | ... \n"); |
ba77c9e1 | 566 | |
65f46e02 | 567 | printf("%.105s\n", graph_dotted_line); |
ba77c9e1 LZ |
568 | } |
569 | ||
0d68bc92 NK |
570 | static const char * const migrate_type_str[] = { |
571 | "UNMOVABL", | |
572 | "RECLAIM", | |
573 | "MOVABLE", | |
574 | "RESERVED", | |
575 | "CMA/ISLT", | |
576 | "UNKNOWN", | |
577 | }; | |
578 | ||
579 | static void __print_page_result(struct rb_root *root, | |
580 | struct perf_session *session __maybe_unused, | |
581 | int n_lines) | |
582 | { | |
583 | struct rb_node *next = rb_first(root); | |
584 | const char *format; | |
585 | ||
586 | printf("\n%.80s\n", graph_dotted_line); | |
587 | printf(" %-16s | Total alloc (KB) | Hits | Order | Mig.type | GFP flags\n", | |
588 | use_pfn ? "PFN" : "Page"); | |
589 | printf("%.80s\n", graph_dotted_line); | |
590 | ||
591 | if (use_pfn) | |
592 | format = " %16llu | %'16llu | %'9d | %5d | %8s | %08lx\n"; | |
593 | else | |
594 | format = " %016llx | %'16llu | %'9d | %5d | %8s | %08lx\n"; | |
595 | ||
596 | while (next && n_lines--) { | |
597 | struct page_stat *data; | |
598 | ||
599 | data = rb_entry(next, struct page_stat, node); | |
600 | ||
601 | printf(format, (unsigned long long)data->page, | |
602 | (unsigned long long)data->alloc_bytes / 1024, | |
603 | data->nr_alloc, data->order, | |
604 | migrate_type_str[data->migrate_type], | |
605 | (unsigned long)data->gfp_flags); | |
606 | ||
607 | next = rb_next(next); | |
608 | } | |
609 | ||
610 | if (n_lines == -1) | |
611 | printf(" ... | ... | ... | ... | ... | ... \n"); | |
612 | ||
613 | printf("%.80s\n", graph_dotted_line); | |
614 | } | |
615 | ||
616 | static void print_slab_summary(void) | |
ba77c9e1 | 617 | { |
0d68bc92 NK |
618 | printf("\nSUMMARY (SLAB allocator)"); |
619 | printf("\n========================\n"); | |
77cfe388 NK |
620 | printf("Total bytes requested: %'lu\n", total_requested); |
621 | printf("Total bytes allocated: %'lu\n", total_allocated); | |
622 | printf("Total bytes wasted on internal fragmentation: %'lu\n", | |
ba77c9e1 LZ |
623 | total_allocated - total_requested); |
624 | printf("Internal fragmentation: %f%%\n", | |
625 | fragmentation(total_requested, total_allocated)); | |
77cfe388 | 626 | printf("Cross CPU allocations: %'lu/%'lu\n", nr_cross_allocs, nr_allocs); |
ba77c9e1 LZ |
627 | } |
628 | ||
0d68bc92 NK |
629 | static void print_page_summary(void) |
630 | { | |
631 | int o, m; | |
632 | u64 nr_alloc_freed = nr_page_frees - nr_page_nomatch; | |
633 | u64 total_alloc_freed_bytes = total_page_free_bytes - total_page_nomatch_bytes; | |
634 | ||
635 | printf("\nSUMMARY (page allocator)"); | |
636 | printf("\n========================\n"); | |
637 | printf("%-30s: %'16lu [ %'16"PRIu64" KB ]\n", "Total allocation requests", | |
638 | nr_page_allocs, total_page_alloc_bytes / 1024); | |
639 | printf("%-30s: %'16lu [ %'16"PRIu64" KB ]\n", "Total free requests", | |
640 | nr_page_frees, total_page_free_bytes / 1024); | |
641 | printf("\n"); | |
642 | ||
6145c259 | 643 | printf("%-30s: %'16"PRIu64" [ %'16"PRIu64" KB ]\n", "Total alloc+freed requests", |
0d68bc92 | 644 | nr_alloc_freed, (total_alloc_freed_bytes) / 1024); |
6145c259 | 645 | printf("%-30s: %'16"PRIu64" [ %'16"PRIu64" KB ]\n", "Total alloc-only requests", |
0d68bc92 NK |
646 | nr_page_allocs - nr_alloc_freed, |
647 | (total_page_alloc_bytes - total_alloc_freed_bytes) / 1024); | |
648 | printf("%-30s: %'16lu [ %'16"PRIu64" KB ]\n", "Total free-only requests", | |
649 | nr_page_nomatch, total_page_nomatch_bytes / 1024); | |
650 | printf("\n"); | |
651 | ||
652 | printf("%-30s: %'16lu [ %'16"PRIu64" KB ]\n", "Total allocation failures", | |
653 | nr_page_fails, total_page_fail_bytes / 1024); | |
654 | printf("\n"); | |
655 | ||
656 | printf("%5s %12s %12s %12s %12s %12s\n", "Order", "Unmovable", | |
657 | "Reclaimable", "Movable", "Reserved", "CMA/Isolated"); | |
658 | printf("%.5s %.12s %.12s %.12s %.12s %.12s\n", graph_dotted_line, | |
659 | graph_dotted_line, graph_dotted_line, graph_dotted_line, | |
660 | graph_dotted_line, graph_dotted_line); | |
661 | ||
662 | for (o = 0; o < MAX_PAGE_ORDER; o++) { | |
663 | printf("%5d", o); | |
664 | for (m = 0; m < MAX_MIGRATE_TYPES - 1; m++) { | |
665 | if (order_stats[o][m]) | |
666 | printf(" %'12d", order_stats[o][m]); | |
667 | else | |
668 | printf(" %12c", '.'); | |
669 | } | |
670 | printf("\n"); | |
671 | } | |
672 | } | |
673 | ||
674 | static void print_slab_result(struct perf_session *session) | |
ba77c9e1 LZ |
675 | { |
676 | if (caller_flag) | |
0d68bc92 NK |
677 | __print_slab_result(&root_caller_sorted, session, caller_lines, 1); |
678 | if (alloc_flag) | |
679 | __print_slab_result(&root_alloc_sorted, session, alloc_lines, 0); | |
680 | print_slab_summary(); | |
681 | } | |
682 | ||
683 | static void print_page_result(struct perf_session *session) | |
684 | { | |
ba77c9e1 | 685 | if (alloc_flag) |
0d68bc92 NK |
686 | __print_page_result(&page_alloc_sorted, session, alloc_lines); |
687 | print_page_summary(); | |
688 | } | |
689 | ||
690 | static void print_result(struct perf_session *session) | |
691 | { | |
692 | if (kmem_slab) | |
693 | print_slab_result(session); | |
694 | if (kmem_page) | |
695 | print_page_result(session); | |
ba77c9e1 LZ |
696 | } |
697 | ||
29b3e152 LZ |
698 | struct sort_dimension { |
699 | const char name[20]; | |
700 | sort_fn_t cmp; | |
701 | struct list_head list; | |
702 | }; | |
703 | ||
704 | static LIST_HEAD(caller_sort); | |
705 | static LIST_HEAD(alloc_sort); | |
706 | ||
0d68bc92 NK |
707 | static void sort_slab_insert(struct rb_root *root, struct alloc_stat *data, |
708 | struct list_head *sort_list) | |
ba77c9e1 LZ |
709 | { |
710 | struct rb_node **new = &(root->rb_node); | |
711 | struct rb_node *parent = NULL; | |
29b3e152 | 712 | struct sort_dimension *sort; |
ba77c9e1 LZ |
713 | |
714 | while (*new) { | |
715 | struct alloc_stat *this; | |
29b3e152 | 716 | int cmp = 0; |
ba77c9e1 LZ |
717 | |
718 | this = rb_entry(*new, struct alloc_stat, node); | |
719 | parent = *new; | |
720 | ||
29b3e152 LZ |
721 | list_for_each_entry(sort, sort_list, list) { |
722 | cmp = sort->cmp(data, this); | |
723 | if (cmp) | |
724 | break; | |
725 | } | |
ba77c9e1 LZ |
726 | |
727 | if (cmp > 0) | |
728 | new = &((*new)->rb_left); | |
729 | else | |
730 | new = &((*new)->rb_right); | |
731 | } | |
732 | ||
733 | rb_link_node(&data->node, parent, new); | |
734 | rb_insert_color(&data->node, root); | |
735 | } | |
736 | ||
0d68bc92 NK |
737 | static void __sort_slab_result(struct rb_root *root, struct rb_root *root_sorted, |
738 | struct list_head *sort_list) | |
ba77c9e1 LZ |
739 | { |
740 | struct rb_node *node; | |
741 | struct alloc_stat *data; | |
742 | ||
743 | for (;;) { | |
744 | node = rb_first(root); | |
745 | if (!node) | |
746 | break; | |
747 | ||
748 | rb_erase(node, root); | |
749 | data = rb_entry(node, struct alloc_stat, node); | |
0d68bc92 NK |
750 | sort_slab_insert(root_sorted, data, sort_list); |
751 | } | |
752 | } | |
753 | ||
754 | static void sort_page_insert(struct rb_root *root, struct page_stat *data) | |
755 | { | |
756 | struct rb_node **new = &root->rb_node; | |
757 | struct rb_node *parent = NULL; | |
758 | ||
759 | while (*new) { | |
760 | struct page_stat *this; | |
761 | int cmp = 0; | |
762 | ||
763 | this = rb_entry(*new, struct page_stat, node); | |
764 | parent = *new; | |
765 | ||
766 | /* TODO: support more sort key */ | |
767 | cmp = data->alloc_bytes - this->alloc_bytes; | |
768 | ||
769 | if (cmp > 0) | |
770 | new = &parent->rb_left; | |
771 | else | |
772 | new = &parent->rb_right; | |
773 | } | |
774 | ||
775 | rb_link_node(&data->node, parent, new); | |
776 | rb_insert_color(&data->node, root); | |
777 | } | |
778 | ||
779 | static void __sort_page_result(struct rb_root *root, struct rb_root *root_sorted) | |
780 | { | |
781 | struct rb_node *node; | |
782 | struct page_stat *data; | |
783 | ||
784 | for (;;) { | |
785 | node = rb_first(root); | |
786 | if (!node) | |
787 | break; | |
788 | ||
789 | rb_erase(node, root); | |
790 | data = rb_entry(node, struct page_stat, node); | |
791 | sort_page_insert(root_sorted, data); | |
ba77c9e1 LZ |
792 | } |
793 | } | |
794 | ||
795 | static void sort_result(void) | |
796 | { | |
0d68bc92 NK |
797 | if (kmem_slab) { |
798 | __sort_slab_result(&root_alloc_stat, &root_alloc_sorted, | |
799 | &alloc_sort); | |
800 | __sort_slab_result(&root_caller_stat, &root_caller_sorted, | |
801 | &caller_sort); | |
802 | } | |
803 | if (kmem_page) { | |
804 | __sort_page_result(&page_alloc_tree, &page_alloc_sorted); | |
805 | } | |
ba77c9e1 LZ |
806 | } |
807 | ||
2b2b2c68 | 808 | static int __cmd_kmem(struct perf_session *session) |
ba77c9e1 | 809 | { |
d549c769 | 810 | int err = -EINVAL; |
0d68bc92 | 811 | struct perf_evsel *evsel; |
0f7d2f1b | 812 | const struct perf_evsel_str_handler kmem_tracepoints[] = { |
0d68bc92 | 813 | /* slab allocator */ |
0f7d2f1b ACM |
814 | { "kmem:kmalloc", perf_evsel__process_alloc_event, }, |
815 | { "kmem:kmem_cache_alloc", perf_evsel__process_alloc_event, }, | |
816 | { "kmem:kmalloc_node", perf_evsel__process_alloc_node_event, }, | |
817 | { "kmem:kmem_cache_alloc_node", perf_evsel__process_alloc_node_event, }, | |
818 | { "kmem:kfree", perf_evsel__process_free_event, }, | |
819 | { "kmem:kmem_cache_free", perf_evsel__process_free_event, }, | |
0d68bc92 NK |
820 | /* page allocator */ |
821 | { "kmem:mm_page_alloc", perf_evsel__process_page_alloc_event, }, | |
822 | { "kmem:mm_page_free", perf_evsel__process_page_free_event, }, | |
0f7d2f1b | 823 | }; |
4aa65636 | 824 | |
d549c769 | 825 | if (!perf_session__has_traces(session, "kmem record")) |
2b2b2c68 | 826 | goto out; |
d549c769 | 827 | |
0f7d2f1b ACM |
828 | if (perf_session__set_tracepoints_handlers(session, kmem_tracepoints)) { |
829 | pr_err("Initializing perf session tracepoint handlers failed\n"); | |
2b2b2c68 | 830 | goto out; |
0f7d2f1b ACM |
831 | } |
832 | ||
0d68bc92 NK |
833 | evlist__for_each(session->evlist, evsel) { |
834 | if (!strcmp(perf_evsel__name(evsel), "kmem:mm_page_alloc") && | |
835 | perf_evsel__field(evsel, "pfn")) { | |
836 | use_pfn = true; | |
837 | break; | |
838 | } | |
839 | } | |
840 | ||
ba77c9e1 | 841 | setup_pager(); |
b7b61cbe | 842 | err = perf_session__process_events(session); |
0d68bc92 NK |
843 | if (err != 0) { |
844 | pr_err("error during process events: %d\n", err); | |
2b2b2c68 | 845 | goto out; |
0d68bc92 | 846 | } |
ba77c9e1 | 847 | sort_result(); |
4aa65636 | 848 | print_result(session); |
2b2b2c68 | 849 | out: |
4aa65636 | 850 | return err; |
ba77c9e1 LZ |
851 | } |
852 | ||
ba77c9e1 LZ |
853 | static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r) |
854 | { | |
855 | if (l->ptr < r->ptr) | |
856 | return -1; | |
857 | else if (l->ptr > r->ptr) | |
858 | return 1; | |
859 | return 0; | |
860 | } | |
861 | ||
29b3e152 LZ |
862 | static struct sort_dimension ptr_sort_dimension = { |
863 | .name = "ptr", | |
864 | .cmp = ptr_cmp, | |
865 | }; | |
866 | ||
ba77c9e1 LZ |
867 | static int callsite_cmp(struct alloc_stat *l, struct alloc_stat *r) |
868 | { | |
869 | if (l->call_site < r->call_site) | |
870 | return -1; | |
871 | else if (l->call_site > r->call_site) | |
872 | return 1; | |
873 | return 0; | |
874 | } | |
875 | ||
29b3e152 LZ |
876 | static struct sort_dimension callsite_sort_dimension = { |
877 | .name = "callsite", | |
878 | .cmp = callsite_cmp, | |
879 | }; | |
880 | ||
f3ced7cd PE |
881 | static int hit_cmp(struct alloc_stat *l, struct alloc_stat *r) |
882 | { | |
883 | if (l->hit < r->hit) | |
884 | return -1; | |
885 | else if (l->hit > r->hit) | |
886 | return 1; | |
887 | return 0; | |
888 | } | |
889 | ||
29b3e152 LZ |
890 | static struct sort_dimension hit_sort_dimension = { |
891 | .name = "hit", | |
892 | .cmp = hit_cmp, | |
893 | }; | |
894 | ||
ba77c9e1 LZ |
895 | static int bytes_cmp(struct alloc_stat *l, struct alloc_stat *r) |
896 | { | |
897 | if (l->bytes_alloc < r->bytes_alloc) | |
898 | return -1; | |
899 | else if (l->bytes_alloc > r->bytes_alloc) | |
900 | return 1; | |
901 | return 0; | |
902 | } | |
903 | ||
29b3e152 LZ |
904 | static struct sort_dimension bytes_sort_dimension = { |
905 | .name = "bytes", | |
906 | .cmp = bytes_cmp, | |
907 | }; | |
908 | ||
f3ced7cd PE |
909 | static int frag_cmp(struct alloc_stat *l, struct alloc_stat *r) |
910 | { | |
911 | double x, y; | |
912 | ||
913 | x = fragmentation(l->bytes_req, l->bytes_alloc); | |
914 | y = fragmentation(r->bytes_req, r->bytes_alloc); | |
915 | ||
916 | if (x < y) | |
917 | return -1; | |
918 | else if (x > y) | |
919 | return 1; | |
920 | return 0; | |
921 | } | |
922 | ||
29b3e152 LZ |
923 | static struct sort_dimension frag_sort_dimension = { |
924 | .name = "frag", | |
925 | .cmp = frag_cmp, | |
926 | }; | |
927 | ||
079d3f65 LZ |
928 | static int pingpong_cmp(struct alloc_stat *l, struct alloc_stat *r) |
929 | { | |
930 | if (l->pingpong < r->pingpong) | |
931 | return -1; | |
932 | else if (l->pingpong > r->pingpong) | |
933 | return 1; | |
934 | return 0; | |
935 | } | |
936 | ||
937 | static struct sort_dimension pingpong_sort_dimension = { | |
938 | .name = "pingpong", | |
939 | .cmp = pingpong_cmp, | |
940 | }; | |
941 | ||
29b3e152 LZ |
942 | static struct sort_dimension *avail_sorts[] = { |
943 | &ptr_sort_dimension, | |
944 | &callsite_sort_dimension, | |
945 | &hit_sort_dimension, | |
946 | &bytes_sort_dimension, | |
947 | &frag_sort_dimension, | |
079d3f65 | 948 | &pingpong_sort_dimension, |
29b3e152 LZ |
949 | }; |
950 | ||
49e4ba54 | 951 | #define NUM_AVAIL_SORTS ((int)ARRAY_SIZE(avail_sorts)) |
29b3e152 LZ |
952 | |
953 | static int sort_dimension__add(const char *tok, struct list_head *list) | |
954 | { | |
955 | struct sort_dimension *sort; | |
956 | int i; | |
957 | ||
958 | for (i = 0; i < NUM_AVAIL_SORTS; i++) { | |
959 | if (!strcmp(avail_sorts[i]->name, tok)) { | |
8d9233f2 | 960 | sort = memdup(avail_sorts[i], sizeof(*avail_sorts[i])); |
2814eb05 | 961 | if (!sort) { |
8d9233f2 | 962 | pr_err("%s: memdup failed\n", __func__); |
2814eb05 ACM |
963 | return -1; |
964 | } | |
29b3e152 LZ |
965 | list_add_tail(&sort->list, list); |
966 | return 0; | |
967 | } | |
968 | } | |
969 | ||
970 | return -1; | |
971 | } | |
972 | ||
973 | static int setup_sorting(struct list_head *sort_list, const char *arg) | |
974 | { | |
975 | char *tok; | |
976 | char *str = strdup(arg); | |
405f8755 | 977 | char *pos = str; |
29b3e152 | 978 | |
2814eb05 ACM |
979 | if (!str) { |
980 | pr_err("%s: strdup failed\n", __func__); | |
981 | return -1; | |
982 | } | |
29b3e152 LZ |
983 | |
984 | while (true) { | |
405f8755 | 985 | tok = strsep(&pos, ","); |
29b3e152 LZ |
986 | if (!tok) |
987 | break; | |
988 | if (sort_dimension__add(tok, sort_list) < 0) { | |
989 | error("Unknown --sort key: '%s'", tok); | |
1b22859d | 990 | free(str); |
29b3e152 LZ |
991 | return -1; |
992 | } | |
993 | } | |
994 | ||
995 | free(str); | |
996 | return 0; | |
997 | } | |
998 | ||
1d037ca1 IT |
999 | static int parse_sort_opt(const struct option *opt __maybe_unused, |
1000 | const char *arg, int unset __maybe_unused) | |
ba77c9e1 | 1001 | { |
ba77c9e1 LZ |
1002 | if (!arg) |
1003 | return -1; | |
1004 | ||
ba77c9e1 | 1005 | if (caller_flag > alloc_flag) |
29b3e152 | 1006 | return setup_sorting(&caller_sort, arg); |
ba77c9e1 | 1007 | else |
29b3e152 | 1008 | return setup_sorting(&alloc_sort, arg); |
ba77c9e1 LZ |
1009 | |
1010 | return 0; | |
1011 | } | |
1012 | ||
1d037ca1 IT |
1013 | static int parse_caller_opt(const struct option *opt __maybe_unused, |
1014 | const char *arg __maybe_unused, | |
1015 | int unset __maybe_unused) | |
ba77c9e1 | 1016 | { |
90b86a9f LZ |
1017 | caller_flag = (alloc_flag + 1); |
1018 | return 0; | |
1019 | } | |
ba77c9e1 | 1020 | |
1d037ca1 IT |
1021 | static int parse_alloc_opt(const struct option *opt __maybe_unused, |
1022 | const char *arg __maybe_unused, | |
1023 | int unset __maybe_unused) | |
90b86a9f LZ |
1024 | { |
1025 | alloc_flag = (caller_flag + 1); | |
ba77c9e1 LZ |
1026 | return 0; |
1027 | } | |
1028 | ||
0d68bc92 NK |
1029 | static int parse_slab_opt(const struct option *opt __maybe_unused, |
1030 | const char *arg __maybe_unused, | |
1031 | int unset __maybe_unused) | |
1032 | { | |
1033 | kmem_slab = (kmem_page + 1); | |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | static int parse_page_opt(const struct option *opt __maybe_unused, | |
1038 | const char *arg __maybe_unused, | |
1039 | int unset __maybe_unused) | |
1040 | { | |
1041 | kmem_page = (kmem_slab + 1); | |
1042 | return 0; | |
1043 | } | |
1044 | ||
1d037ca1 IT |
1045 | static int parse_line_opt(const struct option *opt __maybe_unused, |
1046 | const char *arg, int unset __maybe_unused) | |
ba77c9e1 LZ |
1047 | { |
1048 | int lines; | |
1049 | ||
1050 | if (!arg) | |
1051 | return -1; | |
1052 | ||
1053 | lines = strtoul(arg, NULL, 10); | |
1054 | ||
1055 | if (caller_flag > alloc_flag) | |
1056 | caller_lines = lines; | |
1057 | else | |
1058 | alloc_lines = lines; | |
1059 | ||
1060 | return 0; | |
1061 | } | |
1062 | ||
0433ffbe ACM |
1063 | static int __cmd_record(int argc, const char **argv) |
1064 | { | |
1065 | const char * const record_args[] = { | |
4a4d371a | 1066 | "record", "-a", "-R", "-c", "1", |
0d68bc92 NK |
1067 | }; |
1068 | const char * const slab_events[] = { | |
ba77c9e1 LZ |
1069 | "-e", "kmem:kmalloc", |
1070 | "-e", "kmem:kmalloc_node", | |
1071 | "-e", "kmem:kfree", | |
1072 | "-e", "kmem:kmem_cache_alloc", | |
1073 | "-e", "kmem:kmem_cache_alloc_node", | |
1074 | "-e", "kmem:kmem_cache_free", | |
0433ffbe | 1075 | }; |
0d68bc92 NK |
1076 | const char * const page_events[] = { |
1077 | "-e", "kmem:mm_page_alloc", | |
1078 | "-e", "kmem:mm_page_free", | |
1079 | }; | |
ba77c9e1 LZ |
1080 | unsigned int rec_argc, i, j; |
1081 | const char **rec_argv; | |
1082 | ||
1083 | rec_argc = ARRAY_SIZE(record_args) + argc - 1; | |
0d68bc92 NK |
1084 | if (kmem_slab) |
1085 | rec_argc += ARRAY_SIZE(slab_events); | |
1086 | if (kmem_page) | |
1087 | rec_argc += ARRAY_SIZE(page_events); | |
1088 | ||
ba77c9e1 LZ |
1089 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1090 | ||
ce47dc56 CS |
1091 | if (rec_argv == NULL) |
1092 | return -ENOMEM; | |
1093 | ||
ba77c9e1 LZ |
1094 | for (i = 0; i < ARRAY_SIZE(record_args); i++) |
1095 | rec_argv[i] = strdup(record_args[i]); | |
1096 | ||
0d68bc92 NK |
1097 | if (kmem_slab) { |
1098 | for (j = 0; j < ARRAY_SIZE(slab_events); j++, i++) | |
1099 | rec_argv[i] = strdup(slab_events[j]); | |
1100 | } | |
1101 | if (kmem_page) { | |
1102 | for (j = 0; j < ARRAY_SIZE(page_events); j++, i++) | |
1103 | rec_argv[i] = strdup(page_events[j]); | |
1104 | } | |
1105 | ||
ba77c9e1 LZ |
1106 | for (j = 1; j < (unsigned int)argc; j++, i++) |
1107 | rec_argv[i] = argv[j]; | |
1108 | ||
1109 | return cmd_record(i, rec_argv, NULL); | |
1110 | } | |
1111 | ||
1d037ca1 | 1112 | int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused) |
ba77c9e1 | 1113 | { |
0433ffbe | 1114 | const char * const default_sort_order = "frag,hit,bytes"; |
d1eeb77c | 1115 | struct perf_data_file file = { |
d1eeb77c YS |
1116 | .mode = PERF_DATA_MODE_READ, |
1117 | }; | |
0433ffbe ACM |
1118 | const struct option kmem_options[] = { |
1119 | OPT_STRING('i', "input", &input_name, "file", "input file name"), | |
bd72a33e NK |
1120 | OPT_INCR('v', "verbose", &verbose, |
1121 | "be more verbose (show symbol address, etc)"), | |
0433ffbe ACM |
1122 | OPT_CALLBACK_NOOPT(0, "caller", NULL, NULL, |
1123 | "show per-callsite statistics", parse_caller_opt), | |
1124 | OPT_CALLBACK_NOOPT(0, "alloc", NULL, NULL, | |
1125 | "show per-allocation statistics", parse_alloc_opt), | |
1126 | OPT_CALLBACK('s', "sort", NULL, "key[,key2...]", | |
1127 | "sort by keys: ptr, call_site, bytes, hit, pingpong, frag", | |
1128 | parse_sort_opt), | |
1129 | OPT_CALLBACK('l', "line", NULL, "num", "show n lines", parse_line_opt), | |
1130 | OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"), | |
d1eeb77c | 1131 | OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), |
0d68bc92 NK |
1132 | OPT_CALLBACK_NOOPT(0, "slab", NULL, NULL, "Analyze slab allocator", |
1133 | parse_slab_opt), | |
1134 | OPT_CALLBACK_NOOPT(0, "page", NULL, NULL, "Analyze page allocator", | |
1135 | parse_page_opt), | |
0433ffbe ACM |
1136 | OPT_END() |
1137 | }; | |
3bca2354 RR |
1138 | const char *const kmem_subcommands[] = { "record", "stat", NULL }; |
1139 | const char *kmem_usage[] = { | |
1140 | NULL, | |
0433ffbe ACM |
1141 | NULL |
1142 | }; | |
2b2b2c68 | 1143 | struct perf_session *session; |
2b2b2c68 NK |
1144 | int ret = -1; |
1145 | ||
3bca2354 RR |
1146 | argc = parse_options_subcommand(argc, argv, kmem_options, |
1147 | kmem_subcommands, kmem_usage, 0); | |
ba77c9e1 | 1148 | |
90b86a9f | 1149 | if (!argc) |
ba77c9e1 LZ |
1150 | usage_with_options(kmem_usage, kmem_options); |
1151 | ||
0d68bc92 NK |
1152 | if (kmem_slab == 0 && kmem_page == 0) |
1153 | kmem_slab = 1; /* for backward compatibility */ | |
1154 | ||
90b86a9f | 1155 | if (!strncmp(argv[0], "rec", 3)) { |
0a7e6d1b | 1156 | symbol__init(NULL); |
90b86a9f | 1157 | return __cmd_record(argc, argv); |
2b2b2c68 NK |
1158 | } |
1159 | ||
28939e1a JO |
1160 | file.path = input_name; |
1161 | ||
2b2b2c68 NK |
1162 | session = perf_session__new(&file, false, &perf_kmem); |
1163 | if (session == NULL) | |
52e02834 | 1164 | return -1; |
2b2b2c68 | 1165 | |
0d68bc92 NK |
1166 | if (kmem_page) { |
1167 | struct perf_evsel *evsel = perf_evlist__first(session->evlist); | |
1168 | ||
1169 | if (evsel == NULL || evsel->tp_format == NULL) { | |
1170 | pr_err("invalid event found.. aborting\n"); | |
1171 | return -1; | |
1172 | } | |
1173 | ||
1174 | kmem_page_size = pevent_get_page_size(evsel->tp_format->pevent); | |
1175 | } | |
1176 | ||
0a7e6d1b | 1177 | symbol__init(&session->header.env); |
2b2b2c68 NK |
1178 | |
1179 | if (!strcmp(argv[0], "stat")) { | |
77cfe388 NK |
1180 | setlocale(LC_ALL, ""); |
1181 | ||
4b627957 | 1182 | if (cpu__setup_cpunode_map()) |
2b2b2c68 | 1183 | goto out_delete; |
90b86a9f LZ |
1184 | |
1185 | if (list_empty(&caller_sort)) | |
1186 | setup_sorting(&caller_sort, default_sort_order); | |
1187 | if (list_empty(&alloc_sort)) | |
1188 | setup_sorting(&alloc_sort, default_sort_order); | |
ba77c9e1 | 1189 | |
2b2b2c68 | 1190 | ret = __cmd_kmem(session); |
b00eca8c PE |
1191 | } else |
1192 | usage_with_options(kmem_usage, kmem_options); | |
7d0d3945 | 1193 | |
2b2b2c68 NK |
1194 | out_delete: |
1195 | perf_session__delete(session); | |
1196 | ||
1197 | return ret; | |
ba77c9e1 LZ |
1198 | } |
1199 |