this post was submitted on 14 May 2025
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crawlio: Tool that slows down I/O operations (github.com)
submitted 2 months ago by Serpent7776@programming.dev to c/commandline@programming.dev
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Crawlio is a simple C tool that slows down I/O operations by adding a specified amount of time to each I/O call. It uses LD_PRELOAD.

  • Test application behaviour under slow I/O conditions
  • Bring back the dial-up nostalgia
  • Learn how to use LD_PRELOAD
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[–] chonkyninja@lemmy.world -1 points 2 months ago (2 children)

If only there was some framework that already did this….

[–] Serpent7776@programming.dev 0 points 2 months ago

There is?

[–] ExperimentalGuy@programming.dev 0 points 2 months ago (1 children)

What is it

[–] chonkyninja@lemmy.world 2 points 2 months ago* (last edited 2 months ago) (1 children)
[–] Serpent7776@programming.dev 1 points 2 months ago

AFAIK you can't do this with BPF as it doesn't have any kind of sleep functionality. I'm also not sure how would you achive this using cgroup, which are about quotas AFAIK.