allocator
Provides information on memory management.
Examples
Example request:
cbstats 10.5.2.54:11210 allocator
Response:
___ Begin jemalloc statistics ___
Version: 4.3.1-0-g0110fa8451af905affd77c3bea0d545fee2251b2
Assertions disabled
config.malloc_conf: ""
Run-time option settings:
opt.abort: false
opt.lg_chunk: 21
opt.dss: "secondary"
opt.narenas: 1
opt.purge: "ratio"
opt.lg_dirty_mult: 3 (arenas.lg_dirty_mult: 3)
opt.junk: "false"
opt.quarantine: 0
opt.redzone: false
opt.zero: false
opt.tcache: true
opt.lg_tcache_max: 15
opt.prof: true
opt.prof_prefix: "jeprof"
opt.prof_active: false (prof.active: false)
opt.prof_thread_active_init: true (prof.thread_active_init: true)
opt.lg_prof_sample: 19 (prof.lg_sample: 19)
opt.prof_accum: false
opt.lg_prof_interval: -1
opt.prof_gdump: false
opt.prof_final: false
opt.prof_leak: false
opt.stats_print: false
Arenas: 1
Min active:dirty page ratio per arena: 8:1
Quantum size: 16
Page size: 4096
Maximum thread-cached size class: 32768
Allocated: 56561744, active: 59334656, metadata: 2598472, resident: 61198336, mapped: 73400320, retained: 16777216
Current active ceiling: 60817408
Merged arenas stats:
assigned threads: 25
dss allocation precedence: N/A
min active:dirty page ratio: N/A
purging: dirty: 0, sweeps: 154, madvises: 709, purged: 35296
allocated nmalloc ndalloc nrequests
small: 29966416 1008953 896069 4838346
large: 1429504 6737 6693 23620
huge: 25165824 23 20 23
total: 56561744 1015713 902782 4861989
active: 59334656
mapped: 71303168
retained: 16777216
metadata: mapped: 1171456, allocated: 735560
bins: size ind allocated nmalloc ndalloc nrequests curregs curruns regs pgs util nfills nflushes newruns reruns
8 0 25264 12082 8924 48269 3158 8 512 1 0.770 342 403 9 20
16 1 49568 17567 14469 59730 3098 16 256 1 0.756 774 500 16 191
32 2 1155712 265020 228904 1097312 36116 331 128 1 0.852 9990 2667 1686 1768
48 3 714192 322594 307715 937167 14879 118 256 3 0.492 17258 3371 823 1808
64 4 634240 28737 18827 1205793 9910 166 64 1 0.932 857 670 267 1039
80 5 451520 41801 36157 416346 5644 56 256 5 0.393 2200 651 57 892
96 6 1388736 28120 13654 275600 14466 123 128 3 0.918 2780 506 132 901
112 7 478800 84972 80697 96569 4275 28 256 7 0.596 6179 1104 293 139
128 8 80256 38245 37618 48796 627 29 32 1 0.675 4740 1499 1111 252
160 9 35040 99007 98788 110106 219 6 128 5 0.285 7284 1269 718 121
192 10 276480 26712 25272 32077 1440 23 64 3 0.978 2413 583 373 2342
224 11 118720 2704 2174 24423 530 7 128 7 0.591 45 131 9 493
256 12 801280 10594 7464 39653 3130 205 16 1 0.954 959 491 284 3058
320 13 348480 5964 4875 17933 1089 19 64 5 0.895 103 249 24 1815
384 14 740352 3868 1940 22381 1928 61 32 3 0.987 110 110 61 1515
448 15 1159424 3689 1101 11599 2588 41 64 7 0.986 66 94 42 473
512 16 2433024 6176 1424 57318 4752 597 8 1 0.994 817 334 600 1279
640 17 402560 2449 1820 304634 629 20 32 5 0.982 113 163 25 878
768 18 221952 957 668 5584 289 19 16 3 0.950 37 74 19 487
896 19 239232 968 701 2878 267 9 32 7 0.927 26 89 12 298
1024 20 133120 956 826 2158 130 34 4 1 0.955 210 291 109 447
1280 21 250880 643 447 1635 196 13 16 5 0.942 44 89 16 247
1536 22 1855488 1437 229 1535 1208 152 8 3 0.993 168 85 155 129
1792 23 73472 268 227 158 41 4 16 7 0.640 36 92 7 22
2048 24 2203648 1618 542 6211 1076 542 2 1 0.992 247 233 685 279
2560 25 56320 108 86 34 22 4 8 5 0.687 20 66 11 7
3072 26 64512 62 41 8 21 6 4 3 0.875 6 47 15 5
3584 27 14336 52 48 7 4 4 8 7 0.125 6 54 5 3
4096 28 57344 199 185 11236 14 14 1 1 1 30 78 199 0
5120 29 112640 52 30 26 22 6 4 5 0.916 5 46 12 3
6144 30 6144 11 10 3 1 1 2 3 0.500 1 44 6 0
7168 31 0 10 10 1 0 0 4 7 1 1 45 3 0
8192 32 630784 182 105 72 77 77 1 2 1 28 70 182 0
10240 33 20480 69 67 66 2 1 2 5 1 49 93 13 2
12288 34 12718080 1050 15 1027 1035 1035 1 3 1 105 46 1050 0
14336 35 14336 10 9 1 1 1 2 7 0.500 1 44 5 0
large: size ind allocated nmalloc ndalloc nrequests curruns
16384 36 114688 22 15 25 7
---
28672 39 716800 67 42 67 25
32768 40 196608 29 23 16909 6
40960 41 40960 1 0 1 1
---
57344 43 229376 4 0 4 4
65536 44 0 134 134 134 0
---
131072 48 131072 6465 6464 6465 1
---
262144 52 0 5 5 5 0
---
524288 56 0 5 5 5 0
---
1048576 60 0 5 5 5 0
---
huge: size ind allocated nmalloc ndalloc nrequests curhchunks
2097152 64 4194304 7 5 7 2
---
4194304 68 0 5 5 5 0
---
6291456 70 0 5 5 5 0
---
8388608 72 0 5 5 5 0
---
20971520 77 20971520 1 0 1 1
---
arenas[0]:
assigned threads: 25
dss allocation precedence: secondary
min active:dirty page ratio: 8:1
purging: dirty: 0, sweeps: 154, madvises: 709, purged: 35296
allocated nmalloc ndalloc nrequests
small: 29966416 1008953 896069 4838346
large: 1429504 6737 6693 23620
huge: 25165824 23 20 23
total: 56561744 1015713 902782 4861989
active: 59334656
mapped: 71303168
retained: 16777216
metadata: mapped: 1171456, allocated: 735560
bins: size ind allocated nmalloc ndalloc nrequests curregs curruns regs pgs util nfills nflushes newruns reruns
8 0 25264 12082 8924 48269 3158 8 512 1 0.770 342 403 9 20
16 1 49568 17567 14469 59730 3098 16 256 1 0.756 774 500 16 191
32 2 1155712 265020 228904 1097312 36116 331 128 1 0.852 9990 2667 1686 1768
48 3 714192 322594 307715 937167 14879 118 256 3 0.492 17258 3371 823 1808
64 4 634240 28737 18827 1205793 9910 166 64 1 0.932 857 670 267 1039
80 5 451520 41801 36157 416346 5644 56 256 5 0.393 2200 651 57 892
96 6 1388736 28120 13654 275600 14466 123 128 3 0.918 2780 506 132 901
112 7 478800 84972 80697 96569 4275 28 256 7 0.596 6179 1104 293 139
128 8 80256 38245 37618 48796 627 29 32 1 0.675 4740 1499 1111 252
160 9 35040 99007 98788 110106 219 6 128 5 0.285 7284 1269 718 121
192 10 276480 26712 25272 32077 1440 23 64 3 0.978 2413 583 373 2342
224 11 118720 2704 2174 24423 530 7 128 7 0.591 45 131 9 493
256 12 801280 10594 7464 39653 3130 205 16 1 0.954 959 491 284 3058
320 13 348480 5964 4875 17933 1089 19 64 5 0.895 103 249 24 1815
384 14 740352 3868 1940 22381 1928 61 32 3 0.987 110 110 61 1515
448 15 1159424 3689 1101 11599 2588 41 64 7 0.986 66 94 42 473
512 16 2433024 6176 1424 57318 4752 597 8 1 0.994 817 334 600 1279
640 17 402560 2449 1820 304634 629 20 32 5 0.982 113 163 25 878
768 18 221952 957 668 5584 289 19 16 3 0.950 37 74 19 487
896 19 239232 968 701 2878 267 9 32 7 0.927 26 89 12 298
1024 20 133120 956 826 2158 130 34 4 1 0.955 210 291 109 447
1280 21 250880 643 447 1635 196 13 16 5 0.942 44 89 16 247
1536 22 1855488 1437 229 1535 1208 152 8 3 0.993 168 85 155 129
1792 23 73472 268 227 158 41 4 16 7 0.640 36 92 7 22
2048 24 2203648 1618 542 6211 1076 542 2 1 0.992 247 233 685 279
2560 25 56320 108 86 34 22 4 8 5 0.687 20 66 11 7
3072 26 64512 62 41 8 21 6 4 3 0.875 6 47 15 5
3584 27 14336 52 48 7 4 4 8 7 0.125 6 54 5 3
4096 28 57344 199 185 11236 14 14 1 1 1 30 78 199 0
5120 29 112640 52 30 26 22 6 4 5 0.916 5 46 12 3
6144 30 6144 11 10 3 1 1 2 3 0.500 1 44 6 0
7168 31 0 10 10 1 0 0 4 7 1 1 45 3 0
8192 32 630784 182 105 72 77 77 1 2 1 28 70 182 0
10240 33 20480 69 67 66 2 1 2 5 1 49 93 13 2
12288 34 12718080 1050 15 1027 1035 1035 1 3 1 105 46 1050 0
14336 35 14336 10 9 1 1 1 2 7 0.500 1 44 5 0
large: size ind allocated nmalloc ndalloc nrequests curruns
16384 36 114688 22 15 25 7
---
28672 39 716800 67 42 67 25
32768 40 196608 29 23 16909 6
40960 41 40960 1 0 1 1
---
57344 43 229376 4 0 4 4
65536 44 0 134 134 134 0
---
131072 48 131072 6465 6464 6465 1
---
262144 52 0 5 5 5 0
---
524288 56 0 5 5 5 0
---
1048576 60 0 5 5 5 0
---
huge: size ind allocated nmalloc ndalloc nrequests curhchunks
2097152 64 4194304 7 5 7 2
---
4194304 68 0 5 5 5 0
---
6291456 70 0 5 5 5 0
---
8388608 72 0 5 5 5 0
---
20971520 77 20971520 1 0 1 1
---
--- End jemalloc statistics ---