尝试调整新生代的内存大小
默认不加任何参数 (16MB)
$ ./bin/node/bin/node --trace_gc dispatch.js
[29594] 31 ms: Scavenge 1.6 (37.1) -> 1.5 (38.1) MB, 1.3 ms [Runtime::PerformGC].
[29594] 63 ms: Scavenge 2.9 (39.1) -> 2.7 (40.1) MB, 1.4 ms [Runtime::PerformGC].
[29594] 87 ms: Scavenge 3.8 (40.1) -> 3.4 (41.1) MB, 0.8 ms [allocation failure].
[29594] 121 ms: Scavenge 5.8 (41.1) -> 4.8 (42.1) MB, 1.6 ms [allocation failure].