filecoin-project/curio

ffiselect: Set /proc/../oom_score_adj

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#329 opened on Nov 19, 2024

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Description

We should be setting /proc/[childpid]/oom_score_adj to a high value like 900 on tasks which aren't PoSt so that:

  • The main process is less likely to be killed
  • Other processes on the machine are less likely to be killed (Lotus, yugabyte)
  • Things don't break horribly when the scheduler misjudges how much memory we have (i.e. something outside of curio uses a bunch of memory in the middle of a memory-heavy task)

Contributor guide

Research direction
Find the code where child processes are spawned in the scheduler, and add a call to set oom score adj to 900 for tasks not related to PoSt. Ensure error handling and permissions are considered.
Tech stack
go
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GoLinux
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65