Messages in this thread | | | Date | Thu, 27 Oct 2016 00:07:26 +0100 | From | Mel Gorman <> | Subject | Re: CONFIG_VMAP_STACK, on-stack struct, and wake_up_bit |
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On Wed, Oct 26, 2016 at 03:09:41PM -0700, Linus Torvalds wrote: > On Wed, Oct 26, 2016 at 3:03 PM, Mel Gorman <mgorman@techsingularity.net> wrote: > > > > To be clear, are you referring to PeterZ's patch that avoids the lookup? If > > so, I see your point. > > Yup, that's the one. I think you tested it. In fact, I'm sure you did, > because I remember seeing performance numbers from you ;) >
Yeah and the figures were fine. IIRC, 32-bit support was the main thing that was missing but who cares, 32-bit is not going to have the NUMA issues in any way that matters.
> So yes, I'd expect my patch on its own to quite possibly regress on > NUMA systems (although I wonder how much),
I doubt it's a lot. Even if it does, it's doesn't matter because it's a functional fix.
> but I consider PeterZ's > patch the fix to that, so I wouldn't worry about it. >
Agreed. Peter, do you plan to finish that patch?
-- Mel Gorman SUSE Labs
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