node.js 性能相关

[Jesse]

理解 event loop，相关文章：

• https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/
• Event Loop
• On problems with threads in node.js

[Jesse]

从侧边监控 event loop延迟的相关开源工具：

• loopbench
• heavy
• node-event-loop-monitor

[Jesse]

统计 gc 相关数据:

• node-native-metrics
• node-gc-profiler
• node-gcstats