Re: [PATCH 4/4] mm: numa: Do not mark PTEs pte_numa when splitting huge pages

From: Linus Torvalds
Date: Thu Oct 02 2014 - 15:04:04 EST


On Thu, Oct 2, 2014 at 11:58 AM, Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
>
> You've also mentioned that while I can tell you if nothing dies, I can't
> really tell you if everything is working well. Is there a reasonable way
> to easily say if NUMA is working properly? Even something that would just
> tell me "your NUMA balancing seems to be sane" would be good.

So not having a NUMA machine (and not really wanting one), I can't
really test things like the migration even *working*.

But the easy/obvious test would be to run the autonuma benchmarks, and
verify that the performance is where it's expected to be and that the
migration actually works.

I think the "main" source site is

https://gitorious.org/autonuma-benchmark

but haven't verified.

Linus
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