NodeJS GC interpretation

Updated -

Phases of the GC:

  • Scavenge of the minor GC: this is a shorter pause
  • Mark-Sweep-Compact of the major GC (old generation): longer pause

The following is an example for NodeJS mark-compact phase:

[23:0x55fe89619b30] 8968 ms: 
  Mark-Compact (reduce) 5.7 (8.5) -> 5.7 (7.7) MB, 4.73 / 0.00 ms 
(+ 3.3 ms in 19 steps since start of marking, bigg...

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