Investigate resident set vs heap total memory difference

[dapplion]

Lodestar nodes show a significant difference between the process resident set or total process memory and the total heap size. As far as I'm concerned, there's no other large memory item that could justify a 500MB difference

This issue is to track research into what could cause this difference:

• Worker threads: I've disabled all workers (second part of the chart above) and while the total process size is slightly lower the difference is roughly the same
• ??

[philknows]

It might be array buffer backing stores or native code package allocation? How do we debug this? Need to investigate that first. Core dumps?