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Differential D50073

racct: Fix accounting of CPU time for the system idle process
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Authored by markj on Apr 29 2025, 2:53 PM.
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olce

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kib
olce
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rG33be1632047c: racct: Fix accounting of CPU time for the system idle process
Summary
  • Add a flag which cleanly indicates that a given process is the system idle process.
  • Modify racctd() to skip over the idle proc when aggregating CPU time and other metrics which don't apply to the idle thread.
  • Remove handling for idle threads from racct_getpcpu().

PR: 269097
MFC after: 2 weeks
Sponsored by: Klara, Inc.

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rG FreeBSD src repository
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Event Timeline

markj created this revision.Apr 29 2025, 2:53 PM
Herald added subscribers: olce, imp. · View Herald TranscriptApr 29 2025, 2:53 PM
markj requested review of this revision.Apr 29 2025, 2:53 PM
Harbormaster completed remote builds in B63779: Diff 154476.Apr 29 2025, 2:53 PM
kib accepted this revision.Apr 29 2025, 3:35 PM
kib added inline comments.
sys/kern/kern_racct.c
314

?

This revision is now accepted and ready to land.Apr 29 2025, 3:35 PM
olce accepted this revision.Apr 29 2025, 3:39 PM
markj added inline comments.Apr 30 2025, 1:27 PM
sys/kern/kern_racct.c
314

I'll fix this separately.

Closed by commit rG33be1632047c: racct: Fix accounting of CPU time for the system idle process (authored by markj). · Explain WhyMay 1 2025, 2:23 PM
This revision was automatically updated to reflect the committed changes.
markj added a commit: rG33be1632047c: racct: Fix accounting of CPU time for the system idle process.

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PathSize
sys/
kern/
3 lines
22 lines
sys/
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Diff 154622

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sys/kern/kern_idle.c

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sys/kern/kern_racct.c

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sys/sys/proc.h

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