Re: Ongoing 2.4 VM suckage

Jeffrey W. Baker (jwbaker@acm.org)
Thu, 2 Aug 2001 15:32:46 -0700 (PDT)


On Thu, 2 Aug 2001, Rik van Riel wrote:

> On Thu, 2 Aug 2001, Jeffrey W. Baker wrote:
>
> > I'm telling you that's not what happens. When memory pressure
> > gets really high, the kernel takes all the CPU time and the box
> > is completely useless. Maybe the VM sorts itself out but after
> > five minutes of barely responding, I usually just power cycle
> > the damn thing. As I said, this isn't a classic thrash because
> > the swap disks only blip perhaps once every ten seconds!
>
> What kind of workload are you running ?
>
> We could be dealing with some weird artifact of
> virtual page scanning here, or with a strange
> side effect of recent VM changes ...

I'll try to whip up a little C program that brings down my machine.

-jwb

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