callout: Move per-CPU callout state into the dpcpu region
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Authored by markj on Apr 25 2023, 5:22 PM.

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kib
mjg
jhb
emaste

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rG78cfa762ebf2: callout: Move per-CPU callout state into the dpcpu region

Summary

This eliminates some static bloat in amd64 kernels and reduces the
penalty of increasing MAXCPU. The structures now also maintain NUMA
affinity. No functional change intended.

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rG FreeBSD src repository

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Event Timeline

markj created this revision.Apr 25 2023, 5:22 PM

Herald added a subscriber: imp. · View Herald TranscriptApr 25 2023, 5:22 PM

markj requested review of this revision.Apr 25 2023, 5:22 PM

Harbormaster completed remote builds in B51181: Diff 121014.Apr 25 2023, 5:22 PM

markj added a parent revision: D39806: smp: Dynamically allocate the stoppcbs array.Apr 25 2023, 5:22 PM

markj added a child revision: D39808: buf: Dynamically allocate per-CPU buffer queues.

mjg accepted this revision.Apr 25 2023, 5:24 PM

This revision is now accepted and ready to land.Apr 25 2023, 5:24 PM

afedorov added a subscriber: afedorov.Apr 25 2023, 6:55 PM

kib accepted this revision.Apr 26 2023, 1:16 AM

Closed by commit rG78cfa762ebf2: callout: Move per-CPU callout state into the dpcpu region (authored by markj). · Explain WhyApr 26 2023, 2:14 PM

This revision was automatically updated to reflect the committed changes.

markj added a commit: rG78cfa762ebf2: callout: Move per-CPU callout state into the dpcpu region.

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Size

sys/

kern/

kern_timeout.c

6 lines

Diff 121090

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callout: Move per-CPU callout state into the dpcpu regionClosedPublicActions