On Wednesday 01 March 2006 22:19, Paul Jackson wrote:
>
> > If something is a good default it shouldn't need user space
> > configuration at all imho. Only the "weird" cases should.
>
> So are you just saying we got the default backwards?
Yes.
> But for the SGI systems I care about, I'd prefer the default to be
> spreading them.
I think it's the best default for smaller systems too. I've had people
complaining about node inbalances that were caused by one or two
being filled up with d/icache. And the small latencies of accessing
them don't matter very much.
> If you think it would be better to change this default, now that the
> mechanism is in place to do support spreading these slabs, then I could
> certainly go along with that.
Yes that would make me happy.
> Then your systems would not have to do anything in user space, unless
> they wanted to disable spreading these slabs (which of course they
> could easily do using cpusets ;).
>
> Should we change the default to enable this spreading?
I would be in favour of it
-Andi
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