1#define JEMALLOC_STATS_C_
2#include "jemalloc/internal/jemalloc_internal.h"
3
4#define CTL_GET(n, v, t) do { \
5 size_t sz = sizeof(t); \
6 xmallctl(n, v, &sz, NULL, 0); \
7} while (0)
8
9#define CTL_M2_GET(n, i, v, t) do { \
10 size_t mib[6]; \
11 size_t miblen = sizeof(mib) / sizeof(size_t); \
12 size_t sz = sizeof(t); \
13 xmallctlnametomib(n, mib, &miblen); \
14 mib[2] = (i); \
15 xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \
16} while (0)
17
18#define CTL_M2_M4_GET(n, i, j, v, t) do { \
19 size_t mib[6]; \
20 size_t miblen = sizeof(mib) / sizeof(size_t); \
21 size_t sz = sizeof(t); \
22 xmallctlnametomib(n, mib, &miblen); \
23 mib[2] = (i); \
24 mib[4] = (j); \
25 xmallctlbymib(mib, miblen, v, &sz, NULL, 0); \
26} while (0)
27
28/******************************************************************************/
29/* Data. */
30
31bool opt_stats_print = false;
32
33size_t stats_cactive = 0;
34
35/******************************************************************************/
36/* Function prototypes for non-inline static functions. */
37
38static void stats_arena_bins_print(void (*write_cb)(void *, const char *),
39 void *cbopaque, unsigned i);
40static void stats_arena_lruns_print(void (*write_cb)(void *, const char *),
41 void *cbopaque, unsigned i);
42static void stats_arena_hchunks_print(
43 void (*write_cb)(void *, const char *), void *cbopaque, unsigned i);
44static void stats_arena_print(void (*write_cb)(void *, const char *),
45 void *cbopaque, unsigned i, bool bins, bool large, bool huge);
46
47/******************************************************************************/
48
49static void
50stats_arena_bins_print(void (*write_cb)(void *, const char *), void *cbopaque,
51 unsigned i)
52{
53 size_t page;
54 bool config_tcache, in_gap;
55 unsigned nbins, j;
56
57 CTL_GET("arenas.page", &page, size_t);
58
59 CTL_GET("config.tcache", &config_tcache, bool);
60 if (config_tcache) {
61 malloc_cprintf(write_cb, cbopaque,
62 "bins: size ind allocated nmalloc"
63 " ndalloc nrequests curregs curruns regs"
64 " pgs util nfills nflushes newruns"
65 " reruns\n");
66 } else {
67 malloc_cprintf(write_cb, cbopaque,
68 "bins: size ind allocated nmalloc"
69 " ndalloc nrequests curregs curruns regs"
70 " pgs util newruns reruns\n");
71 }
72 CTL_GET("arenas.nbins", &nbins, unsigned);
73 for (j = 0, in_gap = false; j < nbins; j++) {
74 uint64_t nruns;
75
76 CTL_M2_M4_GET("stats.arenas.0.bins.0.nruns", i, j, &nruns,
77 uint64_t);
78 if (nruns == 0)
79 in_gap = true;
80 else {
81 size_t reg_size, run_size, curregs, availregs, milli;
82 size_t curruns;
83 uint32_t nregs;
84 uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes;
85 uint64_t reruns;
86 char util[6]; /* "x.yyy". */
87
88 if (in_gap) {
89 malloc_cprintf(write_cb, cbopaque,
90 " ---\n");
91 in_gap = false;
92 }
93 CTL_M2_GET("arenas.bin.0.size", j, &reg_size, size_t);
94 CTL_M2_GET("arenas.bin.0.nregs", j, &nregs, uint32_t);
95 CTL_M2_GET("arenas.bin.0.run_size", j, &run_size,
96 size_t);
97 CTL_M2_M4_GET("stats.arenas.0.bins.0.nmalloc", i, j,
98 &nmalloc, uint64_t);
99 CTL_M2_M4_GET("stats.arenas.0.bins.0.ndalloc", i, j,
100 &ndalloc, uint64_t);
101 CTL_M2_M4_GET("stats.arenas.0.bins.0.curregs", i, j,
102 &curregs, size_t);
103 CTL_M2_M4_GET("stats.arenas.0.bins.0.nrequests", i, j,
104 &nrequests, uint64_t);
105 if (config_tcache) {
106 CTL_M2_M4_GET("stats.arenas.0.bins.0.nfills", i,
107 j, &nfills, uint64_t);
108 CTL_M2_M4_GET("stats.arenas.0.bins.0.nflushes",
109 i, j, &nflushes, uint64_t);
110 }
111 CTL_M2_M4_GET("stats.arenas.0.bins.0.nreruns", i, j,
112 &reruns, uint64_t);
113 CTL_M2_M4_GET("stats.arenas.0.bins.0.curruns", i, j,
114 &curruns, size_t);
115
116 availregs = nregs * curruns;
117 milli = (availregs != 0) ? (1000 * curregs) / availregs
118 : 1000;
119 assert(milli <= 1000);
120 if (milli < 10) {
121 malloc_snprintf(util, sizeof(util),
122 "0.00%zu", milli);
123 } else if (milli < 100) {
124 malloc_snprintf(util, sizeof(util), "0.0%zu",
125 milli);
126 } else if (milli < 1000) {
127 malloc_snprintf(util, sizeof(util), "0.%zu",
128 milli);
129 } else
130 malloc_snprintf(util, sizeof(util), "1");
131
132 if (config_tcache) {
133 malloc_cprintf(write_cb, cbopaque,
134 "%20zu %3u %12zu %12"FMTu64
135 " %12"FMTu64" %12"FMTu64" %12zu"
136 " %12zu %4u %3zu %-5s %12"FMTu64
137 " %12"FMTu64" %12"FMTu64" %12"FMTu64"\n",
138 reg_size, j, curregs * reg_size, nmalloc,
139 ndalloc, nrequests, curregs, curruns, nregs,
140 run_size / page, util, nfills, nflushes,
141 nruns, reruns);
142 } else {
143 malloc_cprintf(write_cb, cbopaque,
144 "%20zu %3u %12zu %12"FMTu64
145 " %12"FMTu64" %12"FMTu64" %12zu"
146 " %12zu %4u %3zu %-5s %12"FMTu64
147 " %12"FMTu64"\n",
148 reg_size, j, curregs * reg_size, nmalloc,
149 ndalloc, nrequests, curregs, curruns, nregs,
150 run_size / page, util, nruns, reruns);
151 }
152 }
153 }
154 if (in_gap) {
155 malloc_cprintf(write_cb, cbopaque,
156 " ---\n");
157 }
158}
159
160static void
161stats_arena_lruns_print(void (*write_cb)(void *, const char *), void *cbopaque,
162 unsigned i)
163{
164 unsigned nbins, nlruns, j;
165 bool in_gap;
166
167 malloc_cprintf(write_cb, cbopaque,
168 "large: size ind allocated nmalloc ndalloc"
169 " nrequests curruns\n");
170 CTL_GET("arenas.nbins", &nbins, unsigned);
171 CTL_GET("arenas.nlruns", &nlruns, unsigned);
172 for (j = 0, in_gap = false; j < nlruns; j++) {
173 uint64_t nmalloc, ndalloc, nrequests;
174 size_t run_size, curruns;
175
176 CTL_M2_M4_GET("stats.arenas.0.lruns.0.nmalloc", i, j, &nmalloc,
177 uint64_t);
178 CTL_M2_M4_GET("stats.arenas.0.lruns.0.ndalloc", i, j, &ndalloc,
179 uint64_t);
180 CTL_M2_M4_GET("stats.arenas.0.lruns.0.nrequests", i, j,
181 &nrequests, uint64_t);
182 if (nrequests == 0)
183 in_gap = true;
184 else {
185 CTL_M2_GET("arenas.lrun.0.size", j, &run_size, size_t);
186 CTL_M2_M4_GET("stats.arenas.0.lruns.0.curruns", i, j,
187 &curruns, size_t);
188 if (in_gap) {
189 malloc_cprintf(write_cb, cbopaque,
190 " ---\n");
191 in_gap = false;
192 }
193 malloc_cprintf(write_cb, cbopaque,
194 "%20zu %3u %12zu %12"FMTu64" %12"FMTu64
195 " %12"FMTu64" %12zu\n",
196 run_size, nbins + j, curruns * run_size, nmalloc,
197 ndalloc, nrequests, curruns);
198 }
199 }
200 if (in_gap) {
201 malloc_cprintf(write_cb, cbopaque,
202 " ---\n");
203 }
204}
205
206static void
207stats_arena_hchunks_print(void (*write_cb)(void *, const char *),
208 void *cbopaque, unsigned i)
209{
210 unsigned nbins, nlruns, nhchunks, j;
211 bool in_gap;
212
213 malloc_cprintf(write_cb, cbopaque,
214 "huge: size ind allocated nmalloc ndalloc"
215 " nrequests curhchunks\n");
216 CTL_GET("arenas.nbins", &nbins, unsigned);
217 CTL_GET("arenas.nlruns", &nlruns, unsigned);
218 CTL_GET("arenas.nhchunks", &nhchunks, unsigned);
219 for (j = 0, in_gap = false; j < nhchunks; j++) {
220 uint64_t nmalloc, ndalloc, nrequests;
221 size_t hchunk_size, curhchunks;
222
223 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.nmalloc", i, j,
224 &nmalloc, uint64_t);
225 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.ndalloc", i, j,
226 &ndalloc, uint64_t);
227 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.nrequests", i, j,
228 &nrequests, uint64_t);
229 if (nrequests == 0)
230 in_gap = true;
231 else {
232 CTL_M2_GET("arenas.hchunk.0.size", j, &hchunk_size,
233 size_t);
234 CTL_M2_M4_GET("stats.arenas.0.hchunks.0.curhchunks", i,
235 j, &curhchunks, size_t);
236 if (in_gap) {
237 malloc_cprintf(write_cb, cbopaque,
238 " ---\n");
239 in_gap = false;
240 }
241 malloc_cprintf(write_cb, cbopaque,
242 "%20zu %3u %12zu %12"FMTu64" %12"FMTu64
243 " %12"FMTu64" %12zu\n",
244 hchunk_size, nbins + nlruns + j,
245 curhchunks * hchunk_size, nmalloc, ndalloc,
246 nrequests, curhchunks);
247 }
248 }
249 if (in_gap) {
250 malloc_cprintf(write_cb, cbopaque,
251 " ---\n");
252 }
253}
254
255static void
256stats_arena_print(void (*write_cb)(void *, const char *), void *cbopaque,
257 unsigned i, bool bins, bool large, bool huge)
258{
259 unsigned nthreads;
260 const char *dss;
261 ssize_t lg_dirty_mult, decay_time;
262 size_t page, pactive, pdirty, mapped, retained;
263 size_t metadata_mapped, metadata_allocated;
264 uint64_t npurge, nmadvise, purged;
265 size_t small_allocated;
266 uint64_t small_nmalloc, small_ndalloc, small_nrequests;
267 size_t large_allocated;
268 uint64_t large_nmalloc, large_ndalloc, large_nrequests;
269 size_t huge_allocated;
270 uint64_t huge_nmalloc, huge_ndalloc, huge_nrequests;
271
272 CTL_GET("arenas.page", &page, size_t);
273
274 CTL_M2_GET("stats.arenas.0.nthreads", i, &nthreads, unsigned);
275 malloc_cprintf(write_cb, cbopaque,
276 "assigned threads: %u\n", nthreads);
277 CTL_M2_GET("stats.arenas.0.dss", i, &dss, const char *);
278 malloc_cprintf(write_cb, cbopaque, "dss allocation precedence: %s\n",
279 dss);
280 CTL_M2_GET("stats.arenas.0.lg_dirty_mult", i, &lg_dirty_mult, ssize_t);
281 if (opt_purge == purge_mode_ratio) {
282 if (lg_dirty_mult >= 0) {
283 malloc_cprintf(write_cb, cbopaque,
284 "min active:dirty page ratio: %u:1\n",
285 (1U << lg_dirty_mult));
286 } else {
287 malloc_cprintf(write_cb, cbopaque,
288 "min active:dirty page ratio: N/A\n");
289 }
290 }
291 CTL_M2_GET("stats.arenas.0.decay_time", i, &decay_time, ssize_t);
292 if (opt_purge == purge_mode_decay) {
293 if (decay_time >= 0) {
294 malloc_cprintf(write_cb, cbopaque, "decay time: %zd\n",
295 decay_time);
296 } else
297 malloc_cprintf(write_cb, cbopaque, "decay time: N/A\n");
298 }
299 CTL_M2_GET("stats.arenas.0.pactive", i, &pactive, size_t);
300 CTL_M2_GET("stats.arenas.0.pdirty", i, &pdirty, size_t);
301 CTL_M2_GET("stats.arenas.0.npurge", i, &npurge, uint64_t);
302 CTL_M2_GET("stats.arenas.0.nmadvise", i, &nmadvise, uint64_t);
303 CTL_M2_GET("stats.arenas.0.purged", i, &purged, uint64_t);
304 malloc_cprintf(write_cb, cbopaque,
305 "purging: dirty: %zu, sweeps: %"FMTu64", madvises: %"FMTu64", "
306 "purged: %"FMTu64"\n", pdirty, npurge, nmadvise, purged);
307
308 malloc_cprintf(write_cb, cbopaque,
309 " allocated nmalloc ndalloc"
310 " nrequests\n");
311 CTL_M2_GET("stats.arenas.0.small.allocated", i, &small_allocated,
312 size_t);
313 CTL_M2_GET("stats.arenas.0.small.nmalloc", i, &small_nmalloc, uint64_t);
314 CTL_M2_GET("stats.arenas.0.small.ndalloc", i, &small_ndalloc, uint64_t);
315 CTL_M2_GET("stats.arenas.0.small.nrequests", i, &small_nrequests,
316 uint64_t);
317 malloc_cprintf(write_cb, cbopaque,
318 "small: %12zu %12"FMTu64" %12"FMTu64
319 " %12"FMTu64"\n",
320 small_allocated, small_nmalloc, small_ndalloc, small_nrequests);
321 CTL_M2_GET("stats.arenas.0.large.allocated", i, &large_allocated,
322 size_t);
323 CTL_M2_GET("stats.arenas.0.large.nmalloc", i, &large_nmalloc, uint64_t);
324 CTL_M2_GET("stats.arenas.0.large.ndalloc", i, &large_ndalloc, uint64_t);
325 CTL_M2_GET("stats.arenas.0.large.nrequests", i, &large_nrequests,
326 uint64_t);
327 malloc_cprintf(write_cb, cbopaque,
328 "large: %12zu %12"FMTu64" %12"FMTu64
329 " %12"FMTu64"\n",
330 large_allocated, large_nmalloc, large_ndalloc, large_nrequests);
331 CTL_M2_GET("stats.arenas.0.huge.allocated", i, &huge_allocated, size_t);
332 CTL_M2_GET("stats.arenas.0.huge.nmalloc", i, &huge_nmalloc, uint64_t);
333 CTL_M2_GET("stats.arenas.0.huge.ndalloc", i, &huge_ndalloc, uint64_t);
334 CTL_M2_GET("stats.arenas.0.huge.nrequests", i, &huge_nrequests,
335 uint64_t);
336 malloc_cprintf(write_cb, cbopaque,
337 "huge: %12zu %12"FMTu64" %12"FMTu64
338 " %12"FMTu64"\n",
339 huge_allocated, huge_nmalloc, huge_ndalloc, huge_nrequests);
340 malloc_cprintf(write_cb, cbopaque,
341 "total: %12zu %12"FMTu64" %12"FMTu64
342 " %12"FMTu64"\n",
343 small_allocated + large_allocated + huge_allocated,
344 small_nmalloc + large_nmalloc + huge_nmalloc,
345 small_ndalloc + large_ndalloc + huge_ndalloc,
346 small_nrequests + large_nrequests + huge_nrequests);
347 malloc_cprintf(write_cb, cbopaque,
348 "active: %12zu\n", pactive * page);
349 CTL_M2_GET("stats.arenas.0.mapped", i, &mapped, size_t);
350 malloc_cprintf(write_cb, cbopaque,
351 "mapped: %12zu\n", mapped);
352 CTL_M2_GET("stats.arenas.0.retained", i, &retained, size_t);
353 malloc_cprintf(write_cb, cbopaque,
354 "retained: %12zu\n", retained);
355 CTL_M2_GET("stats.arenas.0.metadata.mapped", i, &metadata_mapped,
356 size_t);
357 CTL_M2_GET("stats.arenas.0.metadata.allocated", i, &metadata_allocated,
358 size_t);
359 malloc_cprintf(write_cb, cbopaque,
360 "metadata: mapped: %zu, allocated: %zu\n",
361 metadata_mapped, metadata_allocated);
362
363 if (bins)
364 stats_arena_bins_print(write_cb, cbopaque, i);
365 if (large)
366 stats_arena_lruns_print(write_cb, cbopaque, i);
367 if (huge)
368 stats_arena_hchunks_print(write_cb, cbopaque, i);
369}
370
371void
372stats_print(void (*write_cb)(void *, const char *), void *cbopaque,
373 const char *opts)
374{
375 int err;
376 uint64_t epoch;
377 size_t u64sz;
378 bool general = true;
379 bool merged = true;
380 bool unmerged = true;
381 bool bins = true;
382 bool large = true;
383 bool huge = true;
384
385 /*
386 * Refresh stats, in case mallctl() was called by the application.
387 *
388 * Check for OOM here, since refreshing the ctl cache can trigger
389 * allocation. In practice, none of the subsequent mallctl()-related
390 * calls in this function will cause OOM if this one succeeds.
391 * */
392 epoch = 1;
393 u64sz = sizeof(uint64_t);
394 err = je_mallctl("epoch", &epoch, &u64sz, &epoch, sizeof(uint64_t));
395 if (err != 0) {
396 if (err == EAGAIN) {
397 malloc_write("<jemalloc>: Memory allocation failure in "
398 "mallctl(\"epoch\", ...)\n");
399 return;
400 }
401 malloc_write("<jemalloc>: Failure in mallctl(\"epoch\", "
402 "...)\n");
403 abort();
404 }
405
406 if (opts != NULL) {
407 unsigned i;
408
409 for (i = 0; opts[i] != '\0'; i++) {
410 switch (opts[i]) {
411 case 'g':
412 general = false;
413 break;
414 case 'm':
415 merged = false;
416 break;
417 case 'a':
418 unmerged = false;
419 break;
420 case 'b':
421 bins = false;
422 break;
423 case 'l':
424 large = false;
425 break;
426 case 'h':
427 huge = false;
428 break;
429 default:;
430 }
431 }
432 }
433
434 malloc_cprintf(write_cb, cbopaque,
435 "___ Begin jemalloc statistics ___\n");
436 if (general) {
437 const char *cpv;
438 bool bv;
439 unsigned uv;
440 ssize_t ssv;
441 size_t sv, bsz, usz, ssz, sssz, cpsz;
442
443 bsz = sizeof(bool);
444 usz = sizeof(unsigned);
445 ssz = sizeof(size_t);
446 sssz = sizeof(ssize_t);
447 cpsz = sizeof(const char *);
448
449 CTL_GET("version", &cpv, const char *);
450 malloc_cprintf(write_cb, cbopaque, "Version: %s\n", cpv);
451 CTL_GET("config.debug", &bv, bool);
452 malloc_cprintf(write_cb, cbopaque, "Assertions %s\n",
453 bv ? "enabled" : "disabled");
454 malloc_cprintf(write_cb, cbopaque,
455 "config.malloc_conf: \"%s\"\n", config_malloc_conf);
456
457#define OPT_WRITE_BOOL(n) \
458 if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0) { \
459 malloc_cprintf(write_cb, cbopaque, \
460 " opt."#n": %s\n", bv ? "true" : "false"); \
461 }
462#define OPT_WRITE_BOOL_MUTABLE(n, m) { \
463 bool bv2; \
464 if (je_mallctl("opt."#n, &bv, &bsz, NULL, 0) == 0 && \
465 je_mallctl(#m, &bv2, &bsz, NULL, 0) == 0) { \
466 malloc_cprintf(write_cb, cbopaque, \
467 " opt."#n": %s ("#m": %s)\n", bv ? "true" \
468 : "false", bv2 ? "true" : "false"); \
469 } \
470}
471#define OPT_WRITE_UNSIGNED(n) \
472 if (je_mallctl("opt."#n, &uv, &usz, NULL, 0) == 0) { \
473 malloc_cprintf(write_cb, cbopaque, \
474 " opt."#n": %u\n", uv); \
475 }
476#define OPT_WRITE_SIZE_T(n) \
477 if (je_mallctl("opt."#n, &sv, &ssz, NULL, 0) == 0) { \
478 malloc_cprintf(write_cb, cbopaque, \
479 " opt."#n": %zu\n", sv); \
480 }
481#define OPT_WRITE_SSIZE_T(n) \
482 if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0) { \
483 malloc_cprintf(write_cb, cbopaque, \
484 " opt."#n": %zd\n", ssv); \
485 }
486#define OPT_WRITE_SSIZE_T_MUTABLE(n, m) { \
487 ssize_t ssv2; \
488 if (je_mallctl("opt."#n, &ssv, &sssz, NULL, 0) == 0 && \
489 je_mallctl(#m, &ssv2, &sssz, NULL, 0) == 0) { \
490 malloc_cprintf(write_cb, cbopaque, \
491 " opt."#n": %zd ("#m": %zd)\n", \
492 ssv, ssv2); \
493 } \
494}
495#define OPT_WRITE_CHAR_P(n) \
496 if (je_mallctl("opt."#n, &cpv, &cpsz, NULL, 0) == 0) { \
497 malloc_cprintf(write_cb, cbopaque, \
498 " opt."#n": \"%s\"\n", cpv); \
499 }
500
501 malloc_cprintf(write_cb, cbopaque,
502 "Run-time option settings:\n");
503 OPT_WRITE_BOOL(abort)
504 OPT_WRITE_SIZE_T(lg_chunk)
505 OPT_WRITE_CHAR_P(dss)
506 OPT_WRITE_UNSIGNED(narenas)
507 OPT_WRITE_CHAR_P(purge)
508 if (opt_purge == purge_mode_ratio) {
509 OPT_WRITE_SSIZE_T_MUTABLE(lg_dirty_mult,
510 arenas.lg_dirty_mult)
511 }
512 if (opt_purge == purge_mode_decay)
513 OPT_WRITE_SSIZE_T_MUTABLE(decay_time, arenas.decay_time)
514 OPT_WRITE_BOOL(stats_print)
515 OPT_WRITE_CHAR_P(junk)
516 OPT_WRITE_SIZE_T(quarantine)
517 OPT_WRITE_BOOL(redzone)
518 OPT_WRITE_BOOL(zero)
519 OPT_WRITE_BOOL(utrace)
520 OPT_WRITE_BOOL(valgrind)
521 OPT_WRITE_BOOL(xmalloc)
522 OPT_WRITE_BOOL(tcache)
523 OPT_WRITE_SSIZE_T(lg_tcache_max)
524 OPT_WRITE_BOOL(prof)
525 OPT_WRITE_CHAR_P(prof_prefix)
526 OPT_WRITE_BOOL_MUTABLE(prof_active, prof.active)
527 OPT_WRITE_BOOL_MUTABLE(prof_thread_active_init,
528 prof.thread_active_init)
529 OPT_WRITE_SSIZE_T(lg_prof_sample)
530 OPT_WRITE_BOOL(prof_accum)
531 OPT_WRITE_SSIZE_T(lg_prof_interval)
532 OPT_WRITE_BOOL(prof_gdump)
533 OPT_WRITE_BOOL(prof_final)
534 OPT_WRITE_BOOL(prof_leak)
535
536#undef OPT_WRITE_BOOL
537#undef OPT_WRITE_BOOL_MUTABLE
538#undef OPT_WRITE_SIZE_T
539#undef OPT_WRITE_SSIZE_T
540#undef OPT_WRITE_CHAR_P
541
542 malloc_cprintf(write_cb, cbopaque, "CPUs: %u\n", ncpus);
543
544 CTL_GET("arenas.narenas", &uv, unsigned);
545 malloc_cprintf(write_cb, cbopaque, "Arenas: %u\n", uv);
546
547 malloc_cprintf(write_cb, cbopaque, "Pointer size: %zu\n",
548 sizeof(void *));
549
550 CTL_GET("arenas.quantum", &sv, size_t);
551 malloc_cprintf(write_cb, cbopaque, "Quantum size: %zu\n",
552 sv);
553
554 CTL_GET("arenas.page", &sv, size_t);
555 malloc_cprintf(write_cb, cbopaque, "Page size: %zu\n", sv);
556
557 CTL_GET("arenas.lg_dirty_mult", &ssv, ssize_t);
558 if (opt_purge == purge_mode_ratio) {
559 if (ssv >= 0) {
560 malloc_cprintf(write_cb, cbopaque,
561 "Min active:dirty page ratio per arena: "
562 "%u:1\n", (1U << ssv));
563 } else {
564 malloc_cprintf(write_cb, cbopaque,
565 "Min active:dirty page ratio per arena: "
566 "N/A\n");
567 }
568 }
569 CTL_GET("arenas.decay_time", &ssv, ssize_t);
570 if (opt_purge == purge_mode_decay) {
571 malloc_cprintf(write_cb, cbopaque,
572 "Unused dirty page decay time: %zd%s\n",
573 ssv, (ssv < 0) ? " (no decay)" : "");
574 }
575 if (je_mallctl("arenas.tcache_max", &sv, &ssz, NULL, 0) == 0) {
576 malloc_cprintf(write_cb, cbopaque,
577 "Maximum thread-cached size class: %zu\n", sv);
578 }
579 if (je_mallctl("opt.prof", &bv, &bsz, NULL, 0) == 0 && bv) {
580 CTL_GET("prof.lg_sample", &sv, size_t);
581 malloc_cprintf(write_cb, cbopaque,
582 "Average profile sample interval: %"FMTu64
583 " (2^%zu)\n", (((uint64_t)1U) << sv), sv);
584
585 CTL_GET("opt.lg_prof_interval", &ssv, ssize_t);
586 if (ssv >= 0) {
587 malloc_cprintf(write_cb, cbopaque,
588 "Average profile dump interval: %"FMTu64
589 " (2^%zd)\n",
590 (((uint64_t)1U) << ssv), ssv);
591 } else {
592 malloc_cprintf(write_cb, cbopaque,
593 "Average profile dump interval: N/A\n");
594 }
595 }
596 CTL_GET("opt.lg_chunk", &sv, size_t);
597 malloc_cprintf(write_cb, cbopaque,
598 "Chunk size: %zu (2^%zu)\n", (ZU(1) << sv), sv);
599 }
600
601 if (config_stats) {
602 size_t *cactive;
603 size_t allocated, active, metadata, resident, mapped, retained;
604
605 CTL_GET("stats.cactive", &cactive, size_t *);
606 CTL_GET("stats.allocated", &allocated, size_t);
607 CTL_GET("stats.active", &active, size_t);
608 CTL_GET("stats.metadata", &metadata, size_t);
609 CTL_GET("stats.resident", &resident, size_t);
610 CTL_GET("stats.mapped", &mapped, size_t);
611 CTL_GET("stats.retained", &retained, size_t);
612 malloc_cprintf(write_cb, cbopaque,
613 "Allocated: %zu, active: %zu, metadata: %zu,"
614 " resident: %zu, mapped: %zu, retained: %zu\n",
615 allocated, active, metadata, resident, mapped, retained);
616 malloc_cprintf(write_cb, cbopaque,
617 "Current active ceiling: %zu\n",
618 atomic_read_z(cactive));
619
620 if (merged) {
621 unsigned narenas;
622
623 CTL_GET("arenas.narenas", &narenas, unsigned);
624 {
625 VARIABLE_ARRAY(bool, initialized, narenas);
626 size_t isz;
627 unsigned i, ninitialized;
628
629 isz = sizeof(bool) * narenas;
630 xmallctl("arenas.initialized", initialized,
631 &isz, NULL, 0);
632 for (i = ninitialized = 0; i < narenas; i++) {
633 if (initialized[i])
634 ninitialized++;
635 }
636
637 if (ninitialized > 1 || !unmerged) {
638 /* Print merged arena stats. */
639 malloc_cprintf(write_cb, cbopaque,
640 "\nMerged arenas stats:\n");
641 stats_arena_print(write_cb, cbopaque,
642 narenas, bins, large, huge);
643 }
644 }
645 }
646
647 if (unmerged) {
648 unsigned narenas;
649
650 /* Print stats for each arena. */
651
652 CTL_GET("arenas.narenas", &narenas, unsigned);
653 {
654 VARIABLE_ARRAY(bool, initialized, narenas);
655 size_t isz;
656 unsigned i;
657
658 isz = sizeof(bool) * narenas;
659 xmallctl("arenas.initialized", initialized,
660 &isz, NULL, 0);
661
662 for (i = 0; i < narenas; i++) {
663 if (initialized[i]) {
664 malloc_cprintf(write_cb,
665 cbopaque,
666 "\narenas[%u]:\n", i);
667 stats_arena_print(write_cb,
668 cbopaque, i, bins, large,
669 huge);
670 }
671 }
672 }
673 }
674 }
675 malloc_cprintf(write_cb, cbopaque, "--- End jemalloc statistics ---\n");
676}
677