https://crbug.com/639217 | by https://git.io/ilyaigpetrov

crbug639217.sh-session

$ time node --expose-gc --trace-gc --trace-gc-verbose for-nodejs.js 13231
[1776:0x3153a50] Heap growing factor 4.0 based on mu=0.970, speed_ratio=-nan (gc=0, mutator=0)
[1776:0x3153a50] Grow: old size: 3897 KB, new limit: 16598 KB (4.0)
[1776:0x3153a50]      145 ms: Mark-sweep 4.7 (10.8) -> 4.3 (11.8) MB, 11.6 / 0.0 ms  Isolate::RequestGarbageCollection GC in old space requested
[1776:0x3153a50] Memory allocator,   used:  12068 KB, available: 1454300 KB
[1776:0x3153a50] New space,          used:    534 KB, available:    473 KB, committed:   2048 KB
[1776:0x3153a50] Old space,          used:   1219 KB, available:      0 KB, committed:   1944 KB
[1776:0x3153a50] Code space,         used:    738 KB, available:      0 KB, committed:   2048 KB
[1776:0x3153a50] Map space,          used:    131 KB, available:      0 KB, committed:   1108 KB
[1776:0x3153a50] Large object space, used:   1807 KB, available: 1453259 KB, committed:   1848 KB
[1776:0x3153a50] All spaces,         used:   4431 KB, available: 1453732 KB, committed:   8996 KB
[1776:0x3153a50] External memory reported:    911 KB
[1776:0x3153a50] Total time spent in GC  : 11.6 ms
Node version: v7.4.0
{ rss: '22.224896MB',
  heapTotal: '11.309056MB',
  heapUsed: '6.394536MB',
  external: '0.933663MB' }
Elapsed: 0.128s

real    0m0.394s
user    0m0.281s
sys     0m0.094s
$ time node --expose-gc --trace-gc --trace-gc-verbose for-nodejs.js 13232
[1782:0x3c9ca50] Heap growing factor 4.0 based on mu=0.970, speed_ratio=-nan (gc=0, mutator=0)
[1782:0x3c9ca50] Grow: old size: 3897 KB, new limit: 16598 KB (4.0)
[1782:0x3c9ca50]      149 ms: Mark-sweep 4.7 (10.8) -> 4.3 (11.8) MB, 14.4 / 0.0 ms  Isolate::RequestGarbageCollection GC in old space requested
[1782:0x3c9ca50] Memory allocator,   used:  12068 KB, available: 1454300 KB
[1782:0x3c9ca50] New space,          used:    534 KB, available:    473 KB, committed:   2048 KB
[1782:0x3c9ca50] Old space,          used:   1219 KB, available:      0 KB, committed:   1944 KB
[1782:0x3c9ca50] Code space,         used:    738 KB, available:      0 KB, committed:   2048 KB
[1782:0x3c9ca50] Map space,          used:    131 KB, available:      0 KB, committed:   1108 KB
[1782:0x3c9ca50] Large object space, used:   1807 KB, available: 1453259 KB, committed:   1848 KB
[1782:0x3c9ca50] All spaces,         used:   4431 KB, available: 1453732 KB, committed:   8996 KB
[1782:0x3c9ca50] External memory reported:    911 KB
[1782:0x3c9ca50] Total time spent in GC  : 14.4 ms
Node version: v7.4.0
{ rss: '1906.487296MB',
  heapTotal: '16.244736MB',
  heapUsed: '11.017768MB',
  external: '0.933663MB' }
Elapsed: 11.627s
[1782:0x3c9ca50] Memory reducer: call rate 0.007, low alloc, foreground
[1782:0x3c9ca50] Memory reducer: started GC #1

real    0m23.511s
user    0m3.188s
sys     0m3.672s