Re: [PATCH] proc-based cpu affinity user interface

From: Ingo Molnar (mingo@elte.hu)
Date: Tue Nov 27 2001 - 09:17:43 EST


On Mon, 26 Nov 2001, Davide Libenzi wrote:

> As I said in reply to Ingo patch, it'd be better to expose "number"
> cpu masks not "logical" ( like cpus_allowed ). In this way the users
> can use 0..N-1 ( N == number of cpus phisically available ) w/out
> having to know the internal mapping between logical and number ids.

yep, agreed. I've uploaded a new set-affinity syscall patch with your
improvement added:

        http://redhat.com/~mingo/set-affinity-patches/set-affinity-2.4.16-A0

i've only tested it on x86 which has a 1:1 mapping between physical and
logical CPUs, but it should be fine on other architectures as well.

        Ingo

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