3 ms·

How does Bun’s GC work? I have a CLI ghat does some processing and Bun used all the memory and pushed me deep into swap on a 64gb ram machine. I added some Bun

How does Bun’s GC work? I have a CLI ghat does some processing and Bun used all the memory and pushed me deep into swap on a 64gb ram machine. I added some Bun.sleep(1) in the some loops to give the GC more time but that didn’t help much.

Jarred 4y ago
This sounds like a GC scheduling bug in Bun For now, try doing Bun.gc() and if that doesn’t help enough, try Bun.gc(true). This isn’t a great solution because it will make your code slower The GC schedules automatically on event loop tasks and in a few other points in the lifecycle of the application. It is not yet scheduling under memory pressure events and I think that’s what’s missing here
- bin_bash 4y ago
  wouldn't that happen on Bun.sleep(1)?
  - Jarred 4y ago
    Yes, but the GC needs to be scheduled quite a lot for it to work as expected
    - sroussey 4y ago
      And since SQLite is synchronous, no time is available!
bhaney 4y ago
Are you sure you don't just have a memory leak in your code? Even in javascript, if you're accidentally keeping accessible references to objects you aren't intending to access again, they can't be freed by the gc
- sroussey 4y ago
  No, it’s a single loop loading from one db table and into another (transformed).