cpuset: note that -c is valid with the first two forms as well
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Authored by kevans on Dec 6 2025, 4:13 AM.

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imp

ziaee

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olce
markj

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manpages

Summary

In the cmd form, we create a setid (or use -s) and set the affinity. We
set the affinity on the process anonymous mask if -c is not specified,
and on the newly created cpuset if it is.

The -p form is self-explanatory, altering the affinity on either the
-s specified set or the process' current set.

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rG FreeBSD src repository

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Build Status

Buildable 69097
Build 65980: arc lint + arc unit

Event Timeline

kevans created this revision.Dec 6 2025, 4:13 AM

Herald added subscribers: ziaee, imp. · View Herald TranscriptDec 6 2025, 4:13 AM

kevans requested review of this revision.Dec 6 2025, 4:13 AM

Harbormaster completed remote builds in B69097: Diff 167634.Dec 6 2025, 4:13 AM

kevans added a parent revision: D54099: kern: jail: allow specifying a cpuset.parent at creation time.Dec 6 2025, 4:13 AM

kevans added a reviewer: manpages.Dec 6 2025, 4:14 AM

What exactly is the difference between the second and fourth usages after this change?

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cpuset/

cpuset.1

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Diff 167634

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cpuset: note that -c is valid with the first two forms as wellNeeds ReviewPublicActions