Commit | Line | Data |
---|---|---|
c09d8751 CL |
1 | /* |
2 | * Slabinfo: Tool to get reports about slabs | |
3 | * | |
4 | * (C) 2007 sgi, Christoph Lameter <clameter@sgi.com> | |
5 | * | |
6 | * Compile by: | |
7 | * | |
8 | * gcc -o slabinfo slabinfo.c | |
9 | */ | |
10 | #include <stdio.h> | |
11 | #include <stdlib.h> | |
12 | #include <sys/types.h> | |
13 | #include <dirent.h> | |
f32143a2 | 14 | #include <strings.h> |
c09d8751 CL |
15 | #include <string.h> |
16 | #include <unistd.h> | |
17 | #include <stdarg.h> | |
18 | #include <getopt.h> | |
19 | #include <regex.h> | |
a87615b8 | 20 | #include <errno.h> |
c09d8751 CL |
21 | |
22 | #define MAX_SLABS 500 | |
23 | #define MAX_ALIASES 500 | |
24 | #define MAX_NODES 1024 | |
25 | ||
26 | struct slabinfo { | |
27 | char *name; | |
28 | int alias; | |
29 | int refs; | |
30 | int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu; | |
31 | int hwcache_align, object_size, objs_per_slab; | |
32 | int sanity_checks, slab_size, store_user, trace; | |
33 | int order, poison, reclaim_account, red_zone; | |
34 | unsigned long partial, objects, slabs; | |
8ff12cfc CL |
35 | unsigned long alloc_fastpath, alloc_slowpath; |
36 | unsigned long free_fastpath, free_slowpath; | |
37 | unsigned long free_frozen, free_add_partial, free_remove_partial; | |
38 | unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill; | |
39 | unsigned long cpuslab_flush, deactivate_full, deactivate_empty; | |
40 | unsigned long deactivate_to_head, deactivate_to_tail; | |
41 | unsigned long deactivate_remote_frees; | |
c09d8751 CL |
42 | int numa[MAX_NODES]; |
43 | int numa_partial[MAX_NODES]; | |
44 | } slabinfo[MAX_SLABS]; | |
45 | ||
46 | struct aliasinfo { | |
47 | char *name; | |
48 | char *ref; | |
49 | struct slabinfo *slab; | |
50 | } aliasinfo[MAX_ALIASES]; | |
51 | ||
52 | int slabs = 0; | |
a87615b8 | 53 | int actual_slabs = 0; |
c09d8751 CL |
54 | int aliases = 0; |
55 | int alias_targets = 0; | |
56 | int highest_node = 0; | |
57 | ||
58 | char buffer[4096]; | |
59 | ||
a87615b8 CL |
60 | int show_empty = 0; |
61 | int show_report = 0; | |
c09d8751 CL |
62 | int show_alias = 0; |
63 | int show_slab = 0; | |
64 | int skip_zero = 1; | |
65 | int show_numa = 0; | |
66 | int show_track = 0; | |
67 | int show_first_alias = 0; | |
68 | int validate = 0; | |
69 | int shrink = 0; | |
70 | int show_inverted = 0; | |
71 | int show_single_ref = 0; | |
72 | int show_totals = 0; | |
73 | int sort_size = 0; | |
8ff12cfc | 74 | int sort_active = 0; |
a87615b8 CL |
75 | int set_debug = 0; |
76 | int show_ops = 0; | |
8ff12cfc | 77 | int show_activity = 0; |
a87615b8 CL |
78 | |
79 | /* Debug options */ | |
80 | int sanity = 0; | |
81 | int redzone = 0; | |
82 | int poison = 0; | |
83 | int tracking = 0; | |
84 | int tracing = 0; | |
c09d8751 CL |
85 | |
86 | int page_size; | |
87 | ||
88 | regex_t pattern; | |
89 | ||
90 | void fatal(const char *x, ...) | |
91 | { | |
92 | va_list ap; | |
93 | ||
94 | va_start(ap, x); | |
95 | vfprintf(stderr, x, ap); | |
96 | va_end(ap); | |
f32143a2 | 97 | exit(EXIT_FAILURE); |
c09d8751 CL |
98 | } |
99 | ||
100 | void usage(void) | |
101 | { | |
a87615b8 CL |
102 | printf("slabinfo 5/7/2007. (c) 2007 sgi. clameter@sgi.com\n\n" |
103 | "slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n" | |
c09d8751 | 104 | "-a|--aliases Show aliases\n" |
8ff12cfc | 105 | "-A|--activity Most active slabs first\n" |
a87615b8 | 106 | "-d<options>|--debug=<options> Set/Clear Debug options\n" |
8ff12cfc CL |
107 | "-D|--display-active Switch line format to activity\n" |
108 | "-e|--empty Show empty slabs\n" | |
a87615b8 | 109 | "-f|--first-alias Show first alias\n" |
c09d8751 | 110 | "-h|--help Show usage information\n" |
a87615b8 CL |
111 | "-i|--inverted Inverted list\n" |
112 | "-l|--slabs Show slabs\n" | |
c09d8751 | 113 | "-n|--numa Show NUMA information\n" |
a87615b8 | 114 | "-o|--ops Show kmem_cache_ops\n" |
c09d8751 | 115 | "-s|--shrink Shrink slabs\n" |
a87615b8 CL |
116 | "-r|--report Detailed report on single slabs\n" |
117 | "-S|--Size Sort by size\n" | |
c09d8751 CL |
118 | "-t|--tracking Show alloc/free information\n" |
119 | "-T|--Totals Show summary information\n" | |
a87615b8 | 120 | "-v|--validate Validate slabs\n" |
c09d8751 | 121 | "-z|--zero Include empty slabs\n" |
c09d8751 | 122 | "-1|--1ref Single reference\n" |
a87615b8 CL |
123 | "\nValid debug options (FZPUT may be combined)\n" |
124 | "a / A Switch on all debug options (=FZUP)\n" | |
125 | "- Switch off all debug options\n" | |
126 | "f / F Sanity Checks (SLAB_DEBUG_FREE)\n" | |
127 | "z / Z Redzoning\n" | |
128 | "p / P Poisoning\n" | |
129 | "u / U Tracking\n" | |
130 | "t / T Tracing\n" | |
c09d8751 CL |
131 | ); |
132 | } | |
133 | ||
f32143a2 | 134 | unsigned long read_obj(const char *name) |
c09d8751 CL |
135 | { |
136 | FILE *f = fopen(name, "r"); | |
137 | ||
138 | if (!f) | |
139 | buffer[0] = 0; | |
140 | else { | |
f32143a2 | 141 | if (!fgets(buffer, sizeof(buffer), f)) |
c09d8751 CL |
142 | buffer[0] = 0; |
143 | fclose(f); | |
144 | if (buffer[strlen(buffer)] == '\n') | |
145 | buffer[strlen(buffer)] = 0; | |
146 | } | |
147 | return strlen(buffer); | |
148 | } | |
149 | ||
150 | ||
151 | /* | |
152 | * Get the contents of an attribute | |
153 | */ | |
f32143a2 | 154 | unsigned long get_obj(const char *name) |
c09d8751 CL |
155 | { |
156 | if (!read_obj(name)) | |
157 | return 0; | |
158 | ||
159 | return atol(buffer); | |
160 | } | |
161 | ||
f32143a2 | 162 | unsigned long get_obj_and_str(const char *name, char **x) |
c09d8751 CL |
163 | { |
164 | unsigned long result = 0; | |
165 | char *p; | |
166 | ||
167 | *x = NULL; | |
168 | ||
169 | if (!read_obj(name)) { | |
170 | x = NULL; | |
171 | return 0; | |
172 | } | |
173 | result = strtoul(buffer, &p, 10); | |
174 | while (*p == ' ') | |
175 | p++; | |
176 | if (*p) | |
177 | *x = strdup(p); | |
178 | return result; | |
179 | } | |
180 | ||
f32143a2 | 181 | void set_obj(struct slabinfo *s, const char *name, int n) |
c09d8751 CL |
182 | { |
183 | char x[100]; | |
a87615b8 | 184 | FILE *f; |
c09d8751 | 185 | |
f32143a2 | 186 | snprintf(x, 100, "%s/%s", s->name, name); |
a87615b8 | 187 | f = fopen(x, "w"); |
c09d8751 CL |
188 | if (!f) |
189 | fatal("Cannot write to %s\n", x); | |
190 | ||
191 | fprintf(f, "%d\n", n); | |
192 | fclose(f); | |
193 | } | |
194 | ||
f32143a2 | 195 | unsigned long read_slab_obj(struct slabinfo *s, const char *name) |
a87615b8 CL |
196 | { |
197 | char x[100]; | |
198 | FILE *f; | |
f32143a2 | 199 | size_t l; |
a87615b8 | 200 | |
f32143a2 | 201 | snprintf(x, 100, "%s/%s", s->name, name); |
a87615b8 CL |
202 | f = fopen(x, "r"); |
203 | if (!f) { | |
204 | buffer[0] = 0; | |
205 | l = 0; | |
206 | } else { | |
207 | l = fread(buffer, 1, sizeof(buffer), f); | |
208 | buffer[l] = 0; | |
209 | fclose(f); | |
210 | } | |
211 | return l; | |
212 | } | |
213 | ||
214 | ||
c09d8751 CL |
215 | /* |
216 | * Put a size string together | |
217 | */ | |
218 | int store_size(char *buffer, unsigned long value) | |
219 | { | |
220 | unsigned long divisor = 1; | |
221 | char trailer = 0; | |
222 | int n; | |
223 | ||
224 | if (value > 1000000000UL) { | |
225 | divisor = 100000000UL; | |
226 | trailer = 'G'; | |
227 | } else if (value > 1000000UL) { | |
228 | divisor = 100000UL; | |
229 | trailer = 'M'; | |
230 | } else if (value > 1000UL) { | |
231 | divisor = 100; | |
232 | trailer = 'K'; | |
233 | } | |
234 | ||
235 | value /= divisor; | |
236 | n = sprintf(buffer, "%ld",value); | |
237 | if (trailer) { | |
238 | buffer[n] = trailer; | |
239 | n++; | |
240 | buffer[n] = 0; | |
241 | } | |
242 | if (divisor != 1) { | |
243 | memmove(buffer + n - 2, buffer + n - 3, 4); | |
244 | buffer[n-2] = '.'; | |
245 | n++; | |
246 | } | |
247 | return n; | |
248 | } | |
249 | ||
250 | void decode_numa_list(int *numa, char *t) | |
251 | { | |
252 | int node; | |
253 | int nr; | |
254 | ||
255 | memset(numa, 0, MAX_NODES * sizeof(int)); | |
256 | ||
eefaca9c CL |
257 | if (!t) |
258 | return; | |
259 | ||
c09d8751 CL |
260 | while (*t == 'N') { |
261 | t++; | |
262 | node = strtoul(t, &t, 10); | |
263 | if (*t == '=') { | |
264 | t++; | |
265 | nr = strtoul(t, &t, 10); | |
266 | numa[node] = nr; | |
267 | if (node > highest_node) | |
268 | highest_node = node; | |
269 | } | |
270 | while (*t == ' ') | |
271 | t++; | |
272 | } | |
273 | } | |
274 | ||
275 | void slab_validate(struct slabinfo *s) | |
276 | { | |
32f9306b CL |
277 | if (strcmp(s->name, "*") == 0) |
278 | return; | |
279 | ||
c09d8751 CL |
280 | set_obj(s, "validate", 1); |
281 | } | |
282 | ||
283 | void slab_shrink(struct slabinfo *s) | |
284 | { | |
32f9306b CL |
285 | if (strcmp(s->name, "*") == 0) |
286 | return; | |
287 | ||
c09d8751 CL |
288 | set_obj(s, "shrink", 1); |
289 | } | |
290 | ||
291 | int line = 0; | |
292 | ||
293 | void first_line(void) | |
294 | { | |
8ff12cfc CL |
295 | if (show_activity) |
296 | printf("Name Objects Alloc Free %%Fast\n"); | |
297 | else | |
298 | printf("Name Objects Objsize Space " | |
299 | "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n"); | |
c09d8751 CL |
300 | } |
301 | ||
302 | /* | |
303 | * Find the shortest alias of a slab | |
304 | */ | |
305 | struct aliasinfo *find_one_alias(struct slabinfo *find) | |
306 | { | |
307 | struct aliasinfo *a; | |
308 | struct aliasinfo *best = NULL; | |
309 | ||
310 | for(a = aliasinfo;a < aliasinfo + aliases; a++) { | |
311 | if (a->slab == find && | |
312 | (!best || strlen(best->name) < strlen(a->name))) { | |
313 | best = a; | |
314 | if (strncmp(a->name,"kmall", 5) == 0) | |
315 | return best; | |
316 | } | |
317 | } | |
a87615b8 | 318 | return best; |
c09d8751 CL |
319 | } |
320 | ||
321 | unsigned long slab_size(struct slabinfo *s) | |
322 | { | |
323 | return s->slabs * (page_size << s->order); | |
324 | } | |
325 | ||
8ff12cfc CL |
326 | unsigned long slab_activity(struct slabinfo *s) |
327 | { | |
328 | return s->alloc_fastpath + s->free_fastpath + | |
329 | s->alloc_slowpath + s->free_slowpath; | |
330 | } | |
331 | ||
a87615b8 CL |
332 | void slab_numa(struct slabinfo *s, int mode) |
333 | { | |
334 | int node; | |
335 | ||
336 | if (strcmp(s->name, "*") == 0) | |
337 | return; | |
338 | ||
339 | if (!highest_node) { | |
340 | printf("\n%s: No NUMA information available.\n", s->name); | |
341 | return; | |
342 | } | |
343 | ||
344 | if (skip_zero && !s->slabs) | |
345 | return; | |
346 | ||
347 | if (!line) { | |
348 | printf("\n%-21s:", mode ? "NUMA nodes" : "Slab"); | |
349 | for(node = 0; node <= highest_node; node++) | |
350 | printf(" %4d", node); | |
351 | printf("\n----------------------"); | |
352 | for(node = 0; node <= highest_node; node++) | |
353 | printf("-----"); | |
354 | printf("\n"); | |
355 | } | |
356 | printf("%-21s ", mode ? "All slabs" : s->name); | |
357 | for(node = 0; node <= highest_node; node++) { | |
358 | char b[20]; | |
359 | ||
360 | store_size(b, s->numa[node]); | |
361 | printf(" %4s", b); | |
362 | } | |
363 | printf("\n"); | |
364 | if (mode) { | |
365 | printf("%-21s ", "Partial slabs"); | |
366 | for(node = 0; node <= highest_node; node++) { | |
367 | char b[20]; | |
368 | ||
369 | store_size(b, s->numa_partial[node]); | |
370 | printf(" %4s", b); | |
371 | } | |
372 | printf("\n"); | |
373 | } | |
374 | line++; | |
375 | } | |
376 | ||
377 | void show_tracking(struct slabinfo *s) | |
378 | { | |
379 | printf("\n%s: Kernel object allocation\n", s->name); | |
380 | printf("-----------------------------------------------------------------------\n"); | |
381 | if (read_slab_obj(s, "alloc_calls")) | |
382 | printf(buffer); | |
383 | else | |
384 | printf("No Data\n"); | |
385 | ||
386 | printf("\n%s: Kernel object freeing\n", s->name); | |
387 | printf("------------------------------------------------------------------------\n"); | |
388 | if (read_slab_obj(s, "free_calls")) | |
389 | printf(buffer); | |
390 | else | |
391 | printf("No Data\n"); | |
392 | ||
393 | } | |
394 | ||
395 | void ops(struct slabinfo *s) | |
396 | { | |
397 | if (strcmp(s->name, "*") == 0) | |
398 | return; | |
399 | ||
400 | if (read_slab_obj(s, "ops")) { | |
401 | printf("\n%s: kmem_cache operations\n", s->name); | |
402 | printf("--------------------------------------------\n"); | |
403 | printf(buffer); | |
404 | } else | |
405 | printf("\n%s has no kmem_cache operations\n", s->name); | |
406 | } | |
407 | ||
408 | const char *onoff(int x) | |
409 | { | |
410 | if (x) | |
411 | return "On "; | |
412 | return "Off"; | |
413 | } | |
414 | ||
8ff12cfc CL |
415 | void slab_stats(struct slabinfo *s) |
416 | { | |
417 | unsigned long total_alloc; | |
418 | unsigned long total_free; | |
419 | unsigned long total; | |
420 | ||
421 | if (!s->alloc_slab) | |
422 | return; | |
423 | ||
424 | total_alloc = s->alloc_fastpath + s->alloc_slowpath; | |
425 | total_free = s->free_fastpath + s->free_slowpath; | |
426 | ||
427 | if (!total_alloc) | |
428 | return; | |
429 | ||
430 | printf("\n"); | |
431 | printf("Slab Perf Counter Alloc Free %%Al %%Fr\n"); | |
432 | printf("--------------------------------------------------\n"); | |
433 | printf("Fastpath %8lu %8lu %3lu %3lu\n", | |
434 | s->alloc_fastpath, s->free_fastpath, | |
435 | s->alloc_fastpath * 100 / total_alloc, | |
436 | s->free_fastpath * 100 / total_free); | |
437 | printf("Slowpath %8lu %8lu %3lu %3lu\n", | |
438 | total_alloc - s->alloc_fastpath, s->free_slowpath, | |
439 | (total_alloc - s->alloc_fastpath) * 100 / total_alloc, | |
440 | s->free_slowpath * 100 / total_free); | |
441 | printf("Page Alloc %8lu %8lu %3lu %3lu\n", | |
442 | s->alloc_slab, s->free_slab, | |
443 | s->alloc_slab * 100 / total_alloc, | |
444 | s->free_slab * 100 / total_free); | |
445 | printf("Add partial %8lu %8lu %3lu %3lu\n", | |
446 | s->deactivate_to_head + s->deactivate_to_tail, | |
447 | s->free_add_partial, | |
448 | (s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc, | |
449 | s->free_add_partial * 100 / total_free); | |
450 | printf("Remove partial %8lu %8lu %3lu %3lu\n", | |
451 | s->alloc_from_partial, s->free_remove_partial, | |
452 | s->alloc_from_partial * 100 / total_alloc, | |
453 | s->free_remove_partial * 100 / total_free); | |
454 | ||
455 | printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu\n", | |
456 | s->deactivate_remote_frees, s->free_frozen, | |
457 | s->deactivate_remote_frees * 100 / total_alloc, | |
458 | s->free_frozen * 100 / total_free); | |
459 | ||
460 | printf("Total %8lu %8lu\n\n", total_alloc, total_free); | |
461 | ||
462 | if (s->cpuslab_flush) | |
463 | printf("Flushes %8lu\n", s->cpuslab_flush); | |
464 | ||
465 | if (s->alloc_refill) | |
466 | printf("Refill %8lu\n", s->alloc_refill); | |
467 | ||
468 | total = s->deactivate_full + s->deactivate_empty + | |
469 | s->deactivate_to_head + s->deactivate_to_tail; | |
470 | ||
471 | if (total) | |
472 | printf("Deactivate Full=%lu(%lu%%) Empty=%lu(%lu%%) " | |
473 | "ToHead=%lu(%lu%%) ToTail=%lu(%lu%%)\n", | |
474 | s->deactivate_full, (s->deactivate_full * 100) / total, | |
475 | s->deactivate_empty, (s->deactivate_empty * 100) / total, | |
476 | s->deactivate_to_head, (s->deactivate_to_head * 100) / total, | |
477 | s->deactivate_to_tail, (s->deactivate_to_tail * 100) / total); | |
478 | } | |
479 | ||
a87615b8 CL |
480 | void report(struct slabinfo *s) |
481 | { | |
482 | if (strcmp(s->name, "*") == 0) | |
483 | return; | |
eefaca9c | 484 | |
ac078602 | 485 | printf("\nSlabcache: %-20s Aliases: %2d Order : %2d Objects: %lu\n", |
eefaca9c | 486 | s->name, s->aliases, s->order, s->objects); |
a87615b8 CL |
487 | if (s->hwcache_align) |
488 | printf("** Hardware cacheline aligned\n"); | |
489 | if (s->cache_dma) | |
490 | printf("** Memory is allocated in a special DMA zone\n"); | |
491 | if (s->destroy_by_rcu) | |
492 | printf("** Slabs are destroyed via RCU\n"); | |
493 | if (s->reclaim_account) | |
494 | printf("** Reclaim accounting active\n"); | |
495 | ||
496 | printf("\nSizes (bytes) Slabs Debug Memory\n"); | |
497 | printf("------------------------------------------------------------------------\n"); | |
498 | printf("Object : %7d Total : %7ld Sanity Checks : %s Total: %7ld\n", | |
499 | s->object_size, s->slabs, onoff(s->sanity_checks), | |
500 | s->slabs * (page_size << s->order)); | |
501 | printf("SlabObj: %7d Full : %7ld Redzoning : %s Used : %7ld\n", | |
502 | s->slab_size, s->slabs - s->partial - s->cpu_slabs, | |
503 | onoff(s->red_zone), s->objects * s->object_size); | |
504 | printf("SlabSiz: %7d Partial: %7ld Poisoning : %s Loss : %7ld\n", | |
505 | page_size << s->order, s->partial, onoff(s->poison), | |
506 | s->slabs * (page_size << s->order) - s->objects * s->object_size); | |
507 | printf("Loss : %7d CpuSlab: %7d Tracking : %s Lalig: %7ld\n", | |
508 | s->slab_size - s->object_size, s->cpu_slabs, onoff(s->store_user), | |
509 | (s->slab_size - s->object_size) * s->objects); | |
510 | printf("Align : %7d Objects: %7d Tracing : %s Lpadd: %7ld\n", | |
511 | s->align, s->objs_per_slab, onoff(s->trace), | |
512 | ((page_size << s->order) - s->objs_per_slab * s->slab_size) * | |
513 | s->slabs); | |
514 | ||
515 | ops(s); | |
516 | show_tracking(s); | |
517 | slab_numa(s, 1); | |
8ff12cfc | 518 | slab_stats(s); |
a87615b8 | 519 | } |
c09d8751 CL |
520 | |
521 | void slabcache(struct slabinfo *s) | |
522 | { | |
523 | char size_str[20]; | |
524 | char dist_str[40]; | |
525 | char flags[20]; | |
526 | char *p = flags; | |
527 | ||
a87615b8 CL |
528 | if (strcmp(s->name, "*") == 0) |
529 | return; | |
530 | ||
531 | if (actual_slabs == 1) { | |
532 | report(s); | |
533 | return; | |
534 | } | |
535 | ||
536 | if (skip_zero && !show_empty && !s->slabs) | |
537 | return; | |
538 | ||
539 | if (show_empty && s->slabs) | |
c09d8751 CL |
540 | return; |
541 | ||
542 | store_size(size_str, slab_size(s)); | |
f32143a2 | 543 | snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs, s->partial, s->cpu_slabs); |
c09d8751 CL |
544 | |
545 | if (!line++) | |
546 | first_line(); | |
547 | ||
548 | if (s->aliases) | |
549 | *p++ = '*'; | |
550 | if (s->cache_dma) | |
551 | *p++ = 'd'; | |
552 | if (s->hwcache_align) | |
553 | *p++ = 'A'; | |
554 | if (s->poison) | |
555 | *p++ = 'P'; | |
556 | if (s->reclaim_account) | |
557 | *p++ = 'a'; | |
558 | if (s->red_zone) | |
559 | *p++ = 'Z'; | |
560 | if (s->sanity_checks) | |
561 | *p++ = 'F'; | |
562 | if (s->store_user) | |
563 | *p++ = 'U'; | |
564 | if (s->trace) | |
565 | *p++ = 'T'; | |
566 | ||
567 | *p = 0; | |
8ff12cfc CL |
568 | if (show_activity) { |
569 | unsigned long total_alloc; | |
570 | unsigned long total_free; | |
571 | ||
572 | total_alloc = s->alloc_fastpath + s->alloc_slowpath; | |
573 | total_free = s->free_fastpath + s->free_slowpath; | |
574 | ||
575 | printf("%-21s %8ld %8ld %8ld %3ld %3ld \n", | |
576 | s->name, s->objects, | |
577 | total_alloc, total_free, | |
578 | total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0, | |
579 | total_free ? (s->free_fastpath * 100 / total_free) : 0); | |
580 | } | |
581 | else | |
582 | printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n", | |
583 | s->name, s->objects, s->object_size, size_str, dist_str, | |
584 | s->objs_per_slab, s->order, | |
585 | s->slabs ? (s->partial * 100) / s->slabs : 100, | |
586 | s->slabs ? (s->objects * s->object_size * 100) / | |
587 | (s->slabs * (page_size << s->order)) : 100, | |
588 | flags); | |
c09d8751 CL |
589 | } |
590 | ||
a87615b8 CL |
591 | /* |
592 | * Analyze debug options. Return false if something is amiss. | |
593 | */ | |
594 | int debug_opt_scan(char *opt) | |
c09d8751 | 595 | { |
a87615b8 CL |
596 | if (!opt || !opt[0] || strcmp(opt, "-") == 0) |
597 | return 1; | |
598 | ||
599 | if (strcasecmp(opt, "a") == 0) { | |
600 | sanity = 1; | |
601 | poison = 1; | |
602 | redzone = 1; | |
603 | tracking = 1; | |
604 | return 1; | |
605 | } | |
c09d8751 | 606 | |
a87615b8 CL |
607 | for ( ; *opt; opt++) |
608 | switch (*opt) { | |
609 | case 'F' : case 'f': | |
610 | if (sanity) | |
611 | return 0; | |
612 | sanity = 1; | |
613 | break; | |
614 | case 'P' : case 'p': | |
615 | if (poison) | |
616 | return 0; | |
617 | poison = 1; | |
618 | break; | |
c09d8751 | 619 | |
a87615b8 CL |
620 | case 'Z' : case 'z': |
621 | if (redzone) | |
622 | return 0; | |
623 | redzone = 1; | |
624 | break; | |
c09d8751 | 625 | |
a87615b8 CL |
626 | case 'U' : case 'u': |
627 | if (tracking) | |
628 | return 0; | |
629 | tracking = 1; | |
630 | break; | |
c09d8751 | 631 | |
a87615b8 CL |
632 | case 'T' : case 't': |
633 | if (tracing) | |
634 | return 0; | |
635 | tracing = 1; | |
636 | break; | |
637 | default: | |
638 | return 0; | |
639 | } | |
640 | return 1; | |
c09d8751 CL |
641 | } |
642 | ||
a87615b8 | 643 | int slab_empty(struct slabinfo *s) |
c09d8751 | 644 | { |
a87615b8 CL |
645 | if (s->objects > 0) |
646 | return 0; | |
c09d8751 | 647 | |
a87615b8 CL |
648 | /* |
649 | * We may still have slabs even if there are no objects. Shrinking will | |
650 | * remove them. | |
651 | */ | |
652 | if (s->slabs != 0) | |
653 | set_obj(s, "shrink", 1); | |
c09d8751 | 654 | |
a87615b8 CL |
655 | return 1; |
656 | } | |
657 | ||
658 | void slab_debug(struct slabinfo *s) | |
659 | { | |
32f9306b CL |
660 | if (strcmp(s->name, "*") == 0) |
661 | return; | |
662 | ||
a87615b8 CL |
663 | if (sanity && !s->sanity_checks) { |
664 | set_obj(s, "sanity", 1); | |
665 | } | |
666 | if (!sanity && s->sanity_checks) { | |
667 | if (slab_empty(s)) | |
668 | set_obj(s, "sanity", 0); | |
669 | else | |
670 | fprintf(stderr, "%s not empty cannot disable sanity checks\n", s->name); | |
671 | } | |
672 | if (redzone && !s->red_zone) { | |
673 | if (slab_empty(s)) | |
674 | set_obj(s, "red_zone", 1); | |
675 | else | |
676 | fprintf(stderr, "%s not empty cannot enable redzoning\n", s->name); | |
677 | } | |
678 | if (!redzone && s->red_zone) { | |
679 | if (slab_empty(s)) | |
680 | set_obj(s, "red_zone", 0); | |
681 | else | |
682 | fprintf(stderr, "%s not empty cannot disable redzoning\n", s->name); | |
683 | } | |
684 | if (poison && !s->poison) { | |
685 | if (slab_empty(s)) | |
686 | set_obj(s, "poison", 1); | |
687 | else | |
688 | fprintf(stderr, "%s not empty cannot enable poisoning\n", s->name); | |
689 | } | |
690 | if (!poison && s->poison) { | |
691 | if (slab_empty(s)) | |
692 | set_obj(s, "poison", 0); | |
693 | else | |
694 | fprintf(stderr, "%s not empty cannot disable poisoning\n", s->name); | |
695 | } | |
696 | if (tracking && !s->store_user) { | |
697 | if (slab_empty(s)) | |
698 | set_obj(s, "store_user", 1); | |
699 | else | |
700 | fprintf(stderr, "%s not empty cannot enable tracking\n", s->name); | |
701 | } | |
702 | if (!tracking && s->store_user) { | |
703 | if (slab_empty(s)) | |
704 | set_obj(s, "store_user", 0); | |
705 | else | |
706 | fprintf(stderr, "%s not empty cannot disable tracking\n", s->name); | |
707 | } | |
708 | if (tracing && !s->trace) { | |
709 | if (slabs == 1) | |
710 | set_obj(s, "trace", 1); | |
711 | else | |
712 | fprintf(stderr, "%s can only enable trace for one slab at a time\n", s->name); | |
713 | } | |
714 | if (!tracing && s->trace) | |
715 | set_obj(s, "trace", 1); | |
c09d8751 CL |
716 | } |
717 | ||
718 | void totals(void) | |
719 | { | |
720 | struct slabinfo *s; | |
721 | ||
722 | int used_slabs = 0; | |
723 | char b1[20], b2[20], b3[20], b4[20]; | |
724 | unsigned long long max = 1ULL << 63; | |
725 | ||
726 | /* Object size */ | |
727 | unsigned long long min_objsize = max, max_objsize = 0, avg_objsize; | |
728 | ||
729 | /* Number of partial slabs in a slabcache */ | |
730 | unsigned long long min_partial = max, max_partial = 0, | |
731 | avg_partial, total_partial = 0; | |
732 | ||
733 | /* Number of slabs in a slab cache */ | |
734 | unsigned long long min_slabs = max, max_slabs = 0, | |
735 | avg_slabs, total_slabs = 0; | |
736 | ||
737 | /* Size of the whole slab */ | |
738 | unsigned long long min_size = max, max_size = 0, | |
739 | avg_size, total_size = 0; | |
740 | ||
741 | /* Bytes used for object storage in a slab */ | |
742 | unsigned long long min_used = max, max_used = 0, | |
743 | avg_used, total_used = 0; | |
744 | ||
745 | /* Waste: Bytes used for alignment and padding */ | |
746 | unsigned long long min_waste = max, max_waste = 0, | |
747 | avg_waste, total_waste = 0; | |
748 | /* Number of objects in a slab */ | |
749 | unsigned long long min_objects = max, max_objects = 0, | |
750 | avg_objects, total_objects = 0; | |
751 | /* Waste per object */ | |
752 | unsigned long long min_objwaste = max, | |
753 | max_objwaste = 0, avg_objwaste, | |
754 | total_objwaste = 0; | |
755 | ||
756 | /* Memory per object */ | |
757 | unsigned long long min_memobj = max, | |
758 | max_memobj = 0, avg_memobj, | |
759 | total_objsize = 0; | |
760 | ||
761 | /* Percentage of partial slabs per slab */ | |
762 | unsigned long min_ppart = 100, max_ppart = 0, | |
763 | avg_ppart, total_ppart = 0; | |
764 | ||
765 | /* Number of objects in partial slabs */ | |
766 | unsigned long min_partobj = max, max_partobj = 0, | |
767 | avg_partobj, total_partobj = 0; | |
768 | ||
769 | /* Percentage of partial objects of all objects in a slab */ | |
770 | unsigned long min_ppartobj = 100, max_ppartobj = 0, | |
771 | avg_ppartobj, total_ppartobj = 0; | |
772 | ||
773 | ||
774 | for (s = slabinfo; s < slabinfo + slabs; s++) { | |
775 | unsigned long long size; | |
776 | unsigned long used; | |
777 | unsigned long long wasted; | |
778 | unsigned long long objwaste; | |
779 | long long objects_in_partial_slabs; | |
780 | unsigned long percentage_partial_slabs; | |
781 | unsigned long percentage_partial_objs; | |
782 | ||
783 | if (!s->slabs || !s->objects) | |
784 | continue; | |
785 | ||
786 | used_slabs++; | |
787 | ||
788 | size = slab_size(s); | |
789 | used = s->objects * s->object_size; | |
790 | wasted = size - used; | |
791 | objwaste = s->slab_size - s->object_size; | |
792 | ||
793 | objects_in_partial_slabs = s->objects - | |
794 | (s->slabs - s->partial - s ->cpu_slabs) * | |
795 | s->objs_per_slab; | |
796 | ||
797 | if (objects_in_partial_slabs < 0) | |
798 | objects_in_partial_slabs = 0; | |
799 | ||
800 | percentage_partial_slabs = s->partial * 100 / s->slabs; | |
801 | if (percentage_partial_slabs > 100) | |
802 | percentage_partial_slabs = 100; | |
803 | ||
804 | percentage_partial_objs = objects_in_partial_slabs * 100 | |
805 | / s->objects; | |
806 | ||
807 | if (percentage_partial_objs > 100) | |
808 | percentage_partial_objs = 100; | |
809 | ||
810 | if (s->object_size < min_objsize) | |
811 | min_objsize = s->object_size; | |
812 | if (s->partial < min_partial) | |
813 | min_partial = s->partial; | |
814 | if (s->slabs < min_slabs) | |
815 | min_slabs = s->slabs; | |
816 | if (size < min_size) | |
817 | min_size = size; | |
818 | if (wasted < min_waste) | |
819 | min_waste = wasted; | |
820 | if (objwaste < min_objwaste) | |
821 | min_objwaste = objwaste; | |
822 | if (s->objects < min_objects) | |
823 | min_objects = s->objects; | |
824 | if (used < min_used) | |
825 | min_used = used; | |
826 | if (objects_in_partial_slabs < min_partobj) | |
827 | min_partobj = objects_in_partial_slabs; | |
828 | if (percentage_partial_slabs < min_ppart) | |
829 | min_ppart = percentage_partial_slabs; | |
830 | if (percentage_partial_objs < min_ppartobj) | |
831 | min_ppartobj = percentage_partial_objs; | |
832 | if (s->slab_size < min_memobj) | |
833 | min_memobj = s->slab_size; | |
834 | ||
835 | if (s->object_size > max_objsize) | |
836 | max_objsize = s->object_size; | |
837 | if (s->partial > max_partial) | |
838 | max_partial = s->partial; | |
839 | if (s->slabs > max_slabs) | |
840 | max_slabs = s->slabs; | |
841 | if (size > max_size) | |
842 | max_size = size; | |
843 | if (wasted > max_waste) | |
844 | max_waste = wasted; | |
845 | if (objwaste > max_objwaste) | |
846 | max_objwaste = objwaste; | |
847 | if (s->objects > max_objects) | |
848 | max_objects = s->objects; | |
849 | if (used > max_used) | |
850 | max_used = used; | |
851 | if (objects_in_partial_slabs > max_partobj) | |
852 | max_partobj = objects_in_partial_slabs; | |
853 | if (percentage_partial_slabs > max_ppart) | |
854 | max_ppart = percentage_partial_slabs; | |
855 | if (percentage_partial_objs > max_ppartobj) | |
856 | max_ppartobj = percentage_partial_objs; | |
857 | if (s->slab_size > max_memobj) | |
858 | max_memobj = s->slab_size; | |
859 | ||
860 | total_partial += s->partial; | |
861 | total_slabs += s->slabs; | |
862 | total_size += size; | |
863 | total_waste += wasted; | |
864 | ||
865 | total_objects += s->objects; | |
866 | total_used += used; | |
867 | total_partobj += objects_in_partial_slabs; | |
868 | total_ppart += percentage_partial_slabs; | |
869 | total_ppartobj += percentage_partial_objs; | |
870 | ||
871 | total_objwaste += s->objects * objwaste; | |
872 | total_objsize += s->objects * s->slab_size; | |
873 | } | |
874 | ||
875 | if (!total_objects) { | |
876 | printf("No objects\n"); | |
877 | return; | |
878 | } | |
879 | if (!used_slabs) { | |
880 | printf("No slabs\n"); | |
881 | return; | |
882 | } | |
883 | ||
884 | /* Per slab averages */ | |
885 | avg_partial = total_partial / used_slabs; | |
886 | avg_slabs = total_slabs / used_slabs; | |
887 | avg_size = total_size / used_slabs; | |
888 | avg_waste = total_waste / used_slabs; | |
889 | ||
890 | avg_objects = total_objects / used_slabs; | |
891 | avg_used = total_used / used_slabs; | |
892 | avg_partobj = total_partobj / used_slabs; | |
893 | avg_ppart = total_ppart / used_slabs; | |
894 | avg_ppartobj = total_ppartobj / used_slabs; | |
895 | ||
896 | /* Per object object sizes */ | |
897 | avg_objsize = total_used / total_objects; | |
898 | avg_objwaste = total_objwaste / total_objects; | |
899 | avg_partobj = total_partobj * 100 / total_objects; | |
900 | avg_memobj = total_objsize / total_objects; | |
901 | ||
902 | printf("Slabcache Totals\n"); | |
903 | printf("----------------\n"); | |
904 | printf("Slabcaches : %3d Aliases : %3d->%-3d Active: %3d\n", | |
905 | slabs, aliases, alias_targets, used_slabs); | |
906 | ||
907 | store_size(b1, total_size);store_size(b2, total_waste); | |
908 | store_size(b3, total_waste * 100 / total_used); | |
eefaca9c | 909 | printf("Memory used: %6s # Loss : %6s MRatio:%6s%%\n", b1, b2, b3); |
c09d8751 CL |
910 | |
911 | store_size(b1, total_objects);store_size(b2, total_partobj); | |
912 | store_size(b3, total_partobj * 100 / total_objects); | |
eefaca9c | 913 | printf("# Objects : %6s # PartObj: %6s ORatio:%6s%%\n", b1, b2, b3); |
c09d8751 CL |
914 | |
915 | printf("\n"); | |
916 | printf("Per Cache Average Min Max Total\n"); | |
917 | printf("---------------------------------------------------------\n"); | |
918 | ||
919 | store_size(b1, avg_objects);store_size(b2, min_objects); | |
920 | store_size(b3, max_objects);store_size(b4, total_objects); | |
921 | printf("#Objects %10s %10s %10s %10s\n", | |
922 | b1, b2, b3, b4); | |
923 | ||
924 | store_size(b1, avg_slabs);store_size(b2, min_slabs); | |
925 | store_size(b3, max_slabs);store_size(b4, total_slabs); | |
926 | printf("#Slabs %10s %10s %10s %10s\n", | |
927 | b1, b2, b3, b4); | |
928 | ||
929 | store_size(b1, avg_partial);store_size(b2, min_partial); | |
930 | store_size(b3, max_partial);store_size(b4, total_partial); | |
931 | printf("#PartSlab %10s %10s %10s %10s\n", | |
932 | b1, b2, b3, b4); | |
933 | store_size(b1, avg_ppart);store_size(b2, min_ppart); | |
934 | store_size(b3, max_ppart); | |
935 | store_size(b4, total_partial * 100 / total_slabs); | |
eefaca9c | 936 | printf("%%PartSlab%10s%% %10s%% %10s%% %10s%%\n", |
c09d8751 CL |
937 | b1, b2, b3, b4); |
938 | ||
939 | store_size(b1, avg_partobj);store_size(b2, min_partobj); | |
940 | store_size(b3, max_partobj); | |
941 | store_size(b4, total_partobj); | |
942 | printf("PartObjs %10s %10s %10s %10s\n", | |
943 | b1, b2, b3, b4); | |
944 | ||
945 | store_size(b1, avg_ppartobj);store_size(b2, min_ppartobj); | |
946 | store_size(b3, max_ppartobj); | |
947 | store_size(b4, total_partobj * 100 / total_objects); | |
eefaca9c | 948 | printf("%% PartObj%10s%% %10s%% %10s%% %10s%%\n", |
c09d8751 CL |
949 | b1, b2, b3, b4); |
950 | ||
951 | store_size(b1, avg_size);store_size(b2, min_size); | |
952 | store_size(b3, max_size);store_size(b4, total_size); | |
953 | printf("Memory %10s %10s %10s %10s\n", | |
954 | b1, b2, b3, b4); | |
955 | ||
956 | store_size(b1, avg_used);store_size(b2, min_used); | |
957 | store_size(b3, max_used);store_size(b4, total_used); | |
958 | printf("Used %10s %10s %10s %10s\n", | |
959 | b1, b2, b3, b4); | |
960 | ||
961 | store_size(b1, avg_waste);store_size(b2, min_waste); | |
962 | store_size(b3, max_waste);store_size(b4, total_waste); | |
963 | printf("Loss %10s %10s %10s %10s\n", | |
964 | b1, b2, b3, b4); | |
965 | ||
966 | printf("\n"); | |
967 | printf("Per Object Average Min Max\n"); | |
968 | printf("---------------------------------------------\n"); | |
969 | ||
970 | store_size(b1, avg_memobj);store_size(b2, min_memobj); | |
971 | store_size(b3, max_memobj); | |
972 | printf("Memory %10s %10s %10s\n", | |
973 | b1, b2, b3); | |
974 | store_size(b1, avg_objsize);store_size(b2, min_objsize); | |
975 | store_size(b3, max_objsize); | |
976 | printf("User %10s %10s %10s\n", | |
977 | b1, b2, b3); | |
978 | ||
979 | store_size(b1, avg_objwaste);store_size(b2, min_objwaste); | |
980 | store_size(b3, max_objwaste); | |
981 | printf("Loss %10s %10s %10s\n", | |
982 | b1, b2, b3); | |
983 | } | |
984 | ||
985 | void sort_slabs(void) | |
986 | { | |
987 | struct slabinfo *s1,*s2; | |
988 | ||
989 | for (s1 = slabinfo; s1 < slabinfo + slabs; s1++) { | |
990 | for (s2 = s1 + 1; s2 < slabinfo + slabs; s2++) { | |
991 | int result; | |
992 | ||
993 | if (sort_size) | |
994 | result = slab_size(s1) < slab_size(s2); | |
8ff12cfc CL |
995 | else if (sort_active) |
996 | result = slab_activity(s1) < slab_activity(s2); | |
c09d8751 CL |
997 | else |
998 | result = strcasecmp(s1->name, s2->name); | |
999 | ||
1000 | if (show_inverted) | |
1001 | result = -result; | |
1002 | ||
1003 | if (result > 0) { | |
1004 | struct slabinfo t; | |
1005 | ||
1006 | memcpy(&t, s1, sizeof(struct slabinfo)); | |
1007 | memcpy(s1, s2, sizeof(struct slabinfo)); | |
1008 | memcpy(s2, &t, sizeof(struct slabinfo)); | |
1009 | } | |
1010 | } | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | void sort_aliases(void) | |
1015 | { | |
1016 | struct aliasinfo *a1,*a2; | |
1017 | ||
1018 | for (a1 = aliasinfo; a1 < aliasinfo + aliases; a1++) { | |
1019 | for (a2 = a1 + 1; a2 < aliasinfo + aliases; a2++) { | |
1020 | char *n1, *n2; | |
1021 | ||
1022 | n1 = a1->name; | |
1023 | n2 = a2->name; | |
1024 | if (show_alias && !show_inverted) { | |
1025 | n1 = a1->ref; | |
1026 | n2 = a2->ref; | |
1027 | } | |
1028 | if (strcasecmp(n1, n2) > 0) { | |
1029 | struct aliasinfo t; | |
1030 | ||
1031 | memcpy(&t, a1, sizeof(struct aliasinfo)); | |
1032 | memcpy(a1, a2, sizeof(struct aliasinfo)); | |
1033 | memcpy(a2, &t, sizeof(struct aliasinfo)); | |
1034 | } | |
1035 | } | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | void link_slabs(void) | |
1040 | { | |
1041 | struct aliasinfo *a; | |
1042 | struct slabinfo *s; | |
1043 | ||
1044 | for (a = aliasinfo; a < aliasinfo + aliases; a++) { | |
1045 | ||
a87615b8 | 1046 | for (s = slabinfo; s < slabinfo + slabs; s++) |
c09d8751 CL |
1047 | if (strcmp(a->ref, s->name) == 0) { |
1048 | a->slab = s; | |
1049 | s->refs++; | |
1050 | break; | |
1051 | } | |
1052 | if (s == slabinfo + slabs) | |
1053 | fatal("Unresolved alias %s\n", a->ref); | |
1054 | } | |
1055 | } | |
1056 | ||
1057 | void alias(void) | |
1058 | { | |
1059 | struct aliasinfo *a; | |
1060 | char *active = NULL; | |
1061 | ||
1062 | sort_aliases(); | |
1063 | link_slabs(); | |
1064 | ||
1065 | for(a = aliasinfo; a < aliasinfo + aliases; a++) { | |
1066 | ||
1067 | if (!show_single_ref && a->slab->refs == 1) | |
1068 | continue; | |
1069 | ||
1070 | if (!show_inverted) { | |
1071 | if (active) { | |
1072 | if (strcmp(a->slab->name, active) == 0) { | |
1073 | printf(" %s", a->name); | |
1074 | continue; | |
1075 | } | |
1076 | } | |
a87615b8 | 1077 | printf("\n%-12s <- %s", a->slab->name, a->name); |
c09d8751 CL |
1078 | active = a->slab->name; |
1079 | } | |
1080 | else | |
1081 | printf("%-20s -> %s\n", a->name, a->slab->name); | |
1082 | } | |
1083 | if (active) | |
1084 | printf("\n"); | |
1085 | } | |
1086 | ||
1087 | ||
1088 | void rename_slabs(void) | |
1089 | { | |
1090 | struct slabinfo *s; | |
1091 | struct aliasinfo *a; | |
1092 | ||
1093 | for (s = slabinfo; s < slabinfo + slabs; s++) { | |
1094 | if (*s->name != ':') | |
1095 | continue; | |
1096 | ||
1097 | if (s->refs > 1 && !show_first_alias) | |
1098 | continue; | |
1099 | ||
1100 | a = find_one_alias(s); | |
1101 | ||
a87615b8 CL |
1102 | if (a) |
1103 | s->name = a->name; | |
1104 | else { | |
1105 | s->name = "*"; | |
1106 | actual_slabs--; | |
1107 | } | |
c09d8751 CL |
1108 | } |
1109 | } | |
1110 | ||
1111 | int slab_mismatch(char *slab) | |
1112 | { | |
1113 | return regexec(&pattern, slab, 0, NULL, 0); | |
1114 | } | |
1115 | ||
1116 | void read_slab_dir(void) | |
1117 | { | |
1118 | DIR *dir; | |
1119 | struct dirent *de; | |
1120 | struct slabinfo *slab = slabinfo; | |
1121 | struct aliasinfo *alias = aliasinfo; | |
1122 | char *p; | |
1123 | char *t; | |
1124 | int count; | |
1125 | ||
b6c24de7 | 1126 | if (chdir("/sys/kernel/slab") && chdir("/sys/slab")) |
a87615b8 CL |
1127 | fatal("SYSFS support for SLUB not active\n"); |
1128 | ||
c09d8751 CL |
1129 | dir = opendir("."); |
1130 | while ((de = readdir(dir))) { | |
1131 | if (de->d_name[0] == '.' || | |
a87615b8 CL |
1132 | (de->d_name[0] != ':' && slab_mismatch(de->d_name))) |
1133 | continue; | |
c09d8751 CL |
1134 | switch (de->d_type) { |
1135 | case DT_LNK: | |
1136 | alias->name = strdup(de->d_name); | |
1137 | count = readlink(de->d_name, buffer, sizeof(buffer)); | |
1138 | ||
1139 | if (count < 0) | |
1140 | fatal("Cannot read symlink %s\n", de->d_name); | |
1141 | ||
1142 | buffer[count] = 0; | |
1143 | p = buffer + count; | |
1144 | while (p > buffer && p[-1] != '/') | |
1145 | p--; | |
1146 | alias->ref = strdup(p); | |
1147 | alias++; | |
1148 | break; | |
1149 | case DT_DIR: | |
1150 | if (chdir(de->d_name)) | |
1151 | fatal("Unable to access slab %s\n", slab->name); | |
1152 | slab->name = strdup(de->d_name); | |
1153 | slab->alias = 0; | |
1154 | slab->refs = 0; | |
1155 | slab->aliases = get_obj("aliases"); | |
1156 | slab->align = get_obj("align"); | |
1157 | slab->cache_dma = get_obj("cache_dma"); | |
1158 | slab->cpu_slabs = get_obj("cpu_slabs"); | |
1159 | slab->destroy_by_rcu = get_obj("destroy_by_rcu"); | |
1160 | slab->hwcache_align = get_obj("hwcache_align"); | |
1161 | slab->object_size = get_obj("object_size"); | |
1162 | slab->objects = get_obj("objects"); | |
1163 | slab->objs_per_slab = get_obj("objs_per_slab"); | |
1164 | slab->order = get_obj("order"); | |
1165 | slab->partial = get_obj("partial"); | |
1166 | slab->partial = get_obj_and_str("partial", &t); | |
1167 | decode_numa_list(slab->numa_partial, t); | |
f32143a2 | 1168 | free(t); |
c09d8751 CL |
1169 | slab->poison = get_obj("poison"); |
1170 | slab->reclaim_account = get_obj("reclaim_account"); | |
1171 | slab->red_zone = get_obj("red_zone"); | |
1172 | slab->sanity_checks = get_obj("sanity_checks"); | |
1173 | slab->slab_size = get_obj("slab_size"); | |
1174 | slab->slabs = get_obj_and_str("slabs", &t); | |
1175 | decode_numa_list(slab->numa, t); | |
f32143a2 | 1176 | free(t); |
c09d8751 CL |
1177 | slab->store_user = get_obj("store_user"); |
1178 | slab->trace = get_obj("trace"); | |
8ff12cfc CL |
1179 | slab->alloc_fastpath = get_obj("alloc_fastpath"); |
1180 | slab->alloc_slowpath = get_obj("alloc_slowpath"); | |
1181 | slab->free_fastpath = get_obj("free_fastpath"); | |
1182 | slab->free_slowpath = get_obj("free_slowpath"); | |
1183 | slab->free_frozen= get_obj("free_frozen"); | |
1184 | slab->free_add_partial = get_obj("free_add_partial"); | |
1185 | slab->free_remove_partial = get_obj("free_remove_partial"); | |
1186 | slab->alloc_from_partial = get_obj("alloc_from_partial"); | |
1187 | slab->alloc_slab = get_obj("alloc_slab"); | |
1188 | slab->alloc_refill = get_obj("alloc_refill"); | |
1189 | slab->free_slab = get_obj("free_slab"); | |
1190 | slab->cpuslab_flush = get_obj("cpuslab_flush"); | |
1191 | slab->deactivate_full = get_obj("deactivate_full"); | |
1192 | slab->deactivate_empty = get_obj("deactivate_empty"); | |
1193 | slab->deactivate_to_head = get_obj("deactivate_to_head"); | |
1194 | slab->deactivate_to_tail = get_obj("deactivate_to_tail"); | |
1195 | slab->deactivate_remote_frees = get_obj("deactivate_remote_frees"); | |
c09d8751 CL |
1196 | chdir(".."); |
1197 | if (slab->name[0] == ':') | |
1198 | alias_targets++; | |
1199 | slab++; | |
1200 | break; | |
1201 | default : | |
1202 | fatal("Unknown file type %lx\n", de->d_type); | |
1203 | } | |
1204 | } | |
1205 | closedir(dir); | |
1206 | slabs = slab - slabinfo; | |
a87615b8 | 1207 | actual_slabs = slabs; |
c09d8751 CL |
1208 | aliases = alias - aliasinfo; |
1209 | if (slabs > MAX_SLABS) | |
1210 | fatal("Too many slabs\n"); | |
1211 | if (aliases > MAX_ALIASES) | |
1212 | fatal("Too many aliases\n"); | |
1213 | } | |
1214 | ||
1215 | void output_slabs(void) | |
1216 | { | |
1217 | struct slabinfo *slab; | |
1218 | ||
1219 | for (slab = slabinfo; slab < slabinfo + slabs; slab++) { | |
1220 | ||
1221 | if (slab->alias) | |
1222 | continue; | |
1223 | ||
1224 | ||
1225 | if (show_numa) | |
a87615b8 CL |
1226 | slab_numa(slab, 0); |
1227 | else if (show_track) | |
c09d8751 | 1228 | show_tracking(slab); |
a87615b8 | 1229 | else if (validate) |
c09d8751 | 1230 | slab_validate(slab); |
a87615b8 | 1231 | else if (shrink) |
c09d8751 | 1232 | slab_shrink(slab); |
a87615b8 CL |
1233 | else if (set_debug) |
1234 | slab_debug(slab); | |
1235 | else if (show_ops) | |
1236 | ops(slab); | |
1237 | else if (show_slab) | |
1238 | slabcache(slab); | |
eefaca9c CL |
1239 | else if (show_report) |
1240 | report(slab); | |
c09d8751 CL |
1241 | } |
1242 | } | |
1243 | ||
1244 | struct option opts[] = { | |
1245 | { "aliases", 0, NULL, 'a' }, | |
8ff12cfc | 1246 | { "activity", 0, NULL, 'A' }, |
a87615b8 | 1247 | { "debug", 2, NULL, 'd' }, |
8ff12cfc | 1248 | { "display-activity", 0, NULL, 'D' }, |
a87615b8 | 1249 | { "empty", 0, NULL, 'e' }, |
c09d8751 | 1250 | { "first-alias", 0, NULL, 'f' }, |
a87615b8 CL |
1251 | { "help", 0, NULL, 'h' }, |
1252 | { "inverted", 0, NULL, 'i'}, | |
1253 | { "numa", 0, NULL, 'n' }, | |
1254 | { "ops", 0, NULL, 'o' }, | |
1255 | { "report", 0, NULL, 'r' }, | |
c09d8751 | 1256 | { "shrink", 0, NULL, 's' }, |
a87615b8 | 1257 | { "slabs", 0, NULL, 'l' }, |
c09d8751 | 1258 | { "track", 0, NULL, 't'}, |
a87615b8 CL |
1259 | { "validate", 0, NULL, 'v' }, |
1260 | { "zero", 0, NULL, 'z' }, | |
c09d8751 CL |
1261 | { "1ref", 0, NULL, '1'}, |
1262 | { NULL, 0, NULL, 0 } | |
1263 | }; | |
1264 | ||
1265 | int main(int argc, char *argv[]) | |
1266 | { | |
1267 | int c; | |
1268 | int err; | |
1269 | char *pattern_source; | |
1270 | ||
1271 | page_size = getpagesize(); | |
c09d8751 | 1272 | |
8ff12cfc | 1273 | while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS", |
a87615b8 | 1274 | opts, NULL)) != -1) |
f32143a2 | 1275 | switch (c) { |
c09d8751 CL |
1276 | case '1': |
1277 | show_single_ref = 1; | |
1278 | break; | |
1279 | case 'a': | |
1280 | show_alias = 1; | |
1281 | break; | |
8ff12cfc CL |
1282 | case 'A': |
1283 | sort_active = 1; | |
1284 | break; | |
a87615b8 CL |
1285 | case 'd': |
1286 | set_debug = 1; | |
1287 | if (!debug_opt_scan(optarg)) | |
1288 | fatal("Invalid debug option '%s'\n", optarg); | |
1289 | break; | |
8ff12cfc CL |
1290 | case 'D': |
1291 | show_activity = 1; | |
1292 | break; | |
a87615b8 CL |
1293 | case 'e': |
1294 | show_empty = 1; | |
1295 | break; | |
c09d8751 CL |
1296 | case 'f': |
1297 | show_first_alias = 1; | |
1298 | break; | |
1299 | case 'h': | |
1300 | usage(); | |
1301 | return 0; | |
1302 | case 'i': | |
1303 | show_inverted = 1; | |
1304 | break; | |
1305 | case 'n': | |
1306 | show_numa = 1; | |
1307 | break; | |
a87615b8 CL |
1308 | case 'o': |
1309 | show_ops = 1; | |
1310 | break; | |
1311 | case 'r': | |
1312 | show_report = 1; | |
1313 | break; | |
c09d8751 CL |
1314 | case 's': |
1315 | shrink = 1; | |
1316 | break; | |
1317 | case 'l': | |
1318 | show_slab = 1; | |
1319 | break; | |
1320 | case 't': | |
1321 | show_track = 1; | |
1322 | break; | |
1323 | case 'v': | |
1324 | validate = 1; | |
1325 | break; | |
1326 | case 'z': | |
1327 | skip_zero = 0; | |
1328 | break; | |
1329 | case 'T': | |
1330 | show_totals = 1; | |
1331 | break; | |
1332 | case 'S': | |
1333 | sort_size = 1; | |
1334 | break; | |
1335 | ||
1336 | default: | |
1337 | fatal("%s: Invalid option '%c'\n", argv[0], optopt); | |
1338 | ||
1339 | } | |
1340 | ||
a87615b8 CL |
1341 | if (!show_slab && !show_alias && !show_track && !show_report |
1342 | && !validate && !shrink && !set_debug && !show_ops) | |
c09d8751 CL |
1343 | show_slab = 1; |
1344 | ||
1345 | if (argc > optind) | |
1346 | pattern_source = argv[optind]; | |
1347 | else | |
1348 | pattern_source = ".*"; | |
1349 | ||
1350 | err = regcomp(&pattern, pattern_source, REG_ICASE|REG_NOSUB); | |
1351 | if (err) | |
1352 | fatal("%s: Invalid pattern '%s' code %d\n", | |
1353 | argv[0], pattern_source, err); | |
1354 | read_slab_dir(); | |
1355 | if (show_alias) | |
1356 | alias(); | |
1357 | else | |
1358 | if (show_totals) | |
1359 | totals(); | |
1360 | else { | |
1361 | link_slabs(); | |
1362 | rename_slabs(); | |
1363 | sort_slabs(); | |
1364 | output_slabs(); | |
1365 | } | |
1366 | return 0; | |
1367 | } |