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From: Muttley@dastardlyhq.com
Newsgroups: comp.unix.programmer
Subject: Setting child proc affinity before fork() ?
Date: Sat, 31 May 2025 16:46:48 -0000 (UTC)
Organization: A noiseless patient Spider
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The CPU_* macros and sched_setaffinity() etc allow you to try and force a
given process to run on a given CPU/core , but is there a way to set the
affinity of a process yet to be created by fork() ? Eg if I have a parent
process running on CPU 0 can I make it so that the child will run on CPU 1
before the child is created so that the child itself doesn't have to set
the affinity? I'm thinking of situations with fork-exec when the exec'd
binary won't set any affinity so the parent needs to do it for it.

Thanks for any help.