Re: Topology updates and NUMA-level sched domains

From: Nishanth Aravamudan
Date: Fri Apr 10 2015 - 15:51:54 EST


On 10.04.2015 [11:08:10 +0200], Peter Zijlstra wrote:
> On Fri, Apr 10, 2015 at 10:31:53AM +0200, Peter Zijlstra wrote:
> > Please, step back, look at what you're doing and ask yourself, will any
> > sane person want to use this? Can they use this?
> >
> > If so, start by describing the desired user semantics of this work.
> > Don't start by cobbling kernel bits togerther until it stops crashing.
>
> Also, please talk to your s390 folks. They've long since realized that
> this doesn't work. They've just added big honking caches (their BOOK
> stuff) and pretend the system is UMA.

Interesting, I will take a look.

-Nish

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