Date: Thu, 16 Sep 2004 15:19:59 -0700 From: Julian Elischer <julian@elischer.org> To: Stephen Montgomery-Smith <stephen@math.missouri.edu> Cc: freebsd-stable@FreeBSD.org Subject: Re: 2 Processors under FreeBSD 5.3 Message-ID: <414A118F.6050007@elischer.org> In-Reply-To: <4143931B.5080104@math.missouri.edu> References: <4143931B.5080104@math.missouri.edu>
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Stephen Montgomery-Smith wrote:
> I have a dual Athlon MP computer, and I have a very recent version of
> FreeBSD 5.3 running on it.
>
> If I start 6 computer intensive processes, and then kill 3 of them
> that are using (say) processor 1,
> then the other 3 processes are all processor 0, and as such only get
> 33% computer time each.
>
> Under FreeBSD 4.10 they would have got 66% computer time each, because
> there each process didn't seem stuck to a particular processor.
>
> Is there a sysctl variable that controls this, or is this a bug in
> FreeBSD 5.3, or what is going on?
>
> Here is the computer intensive process:
>
> main() {
> int i;
> while(1) {i++;}
> }
what scheduler are you using?
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