Page MenuHomeFreeBSD

rctl(4): support throttling resource usage to 0
ClosedPublic

Authored by jah on Dec 30 2020, 11:49 PM.
Tags
None
Referenced Files
Unknown Object (File)
Dec 20 2023, 7:46 AM
Unknown Object (File)
Dec 12 2023, 9:09 AM
Unknown Object (File)
Nov 10 2023, 3:56 PM
Unknown Object (File)
Oct 9 2023, 2:51 PM
Unknown Object (File)
Sep 8 2023, 3:37 AM
Unknown Object (File)
Sep 3 2023, 6:31 AM
Unknown Object (File)
Sep 3 2023, 6:30 AM
Unknown Object (File)
Sep 3 2023, 6:28 AM
Subscribers

Details

Summary

For rate-based resources that support throttling (e.g.
readiops/writeips), this fixes a divide-by-zero panic when rctl(8)
passes 0 as the throttle value. For these resources, treat
zero-throttle requests as requests to suspend forward progress as long
as possible using the duration specified in
kern.racct.rctl.throttle_max.

PR: 251803
Reported by: chris@cretaforce.gr
MFC after: 1 week

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable