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  • Setting child proc affinity before fork() ?

    From Muttley@Muttley@dastardlyhq.com to comp.unix.programmer on Sat May 31 16:46:48 2025
    From Newsgroup: comp.unix.programmer

    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.

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