On Thu, 16 Sep 1999, Keith Stevenson wrote:
> On Thu, Sep 16, 1999 at 12:25:52PM +0000, greg wrote:
> > I'm trying to run 1-2 processes with very large memory footprints on my P2 SMP
> > machine. I'm finding that the process switches cpu's quite often, which
> > obviously isn't good for the caches on the CPU.
> >
> > Can anybody point me to a paper, mailing list discussion, etc. that discusses
> > scheduling processes to not thrash the cpu caches? Or if there's anything in
> > place, how I can take advantage of it, etc. I got stumped on the idea a while
> > ago, so I'm really curious...
>
> <Disclaimer>
> All I've heard is a marketing presentation. I haven't seen this is the real
> world yet.
> </Disclaimer>
>
> IBM just released a new version of AIX (4.3.3). One of the big features is
> CPU affinity in order to made better use of the CPU caches. They claim to
> have done this be having a separate run queue for each CPU.
Someone posted some stuff about this to -SMP a bit ago. They had produced a
cheduler that prefereed to run a process on the cpu it last ran on. Go
check the archives. Would have been 6 or 8 weeks ago, I think
David
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