Re: [RFC][PATCH] mm: cut down __GFP_NORETRY page allocation failures

From: Minchan Kim
Date: Mon May 02 2011 - 20:54:04 EST


On Mon, May 2, 2011 at 7:14 PM, KOSAKI Motohiro
<kosaki.motohiro@xxxxxxxxxxxxxx> wrote:
>> On Mon, May 02, 2011 at 01:35:42AM +0900, Minchan Kim wrote:
>>
>> > Do you see my old patch? The patch want't incomplet but it's not bad for showing an idea.
>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â^^^^^^^^^^^^^^^^
>> Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â typo : wasn't complete
>
> I think your idea is eligible. Wu's approach may increase throughput but

Yes. it doesn't change many subtle things and make much fair but the
Wu's concern is order-0 pages with __GFP_NORETRY. By his experiment,
my patch doesn't help much his concern.
The problem I have is I don't have any infrastructure for reproducing
his experiment. :(

> may decrease latency. So, do you have a plan to finish the work?

I want it but the day would be after finishing inorder-putback series. :)
Maybe you have a environment(8core system). If you want it, go ahead. :)

Thanks, KOSAKI.


--
Kind regards,
Minchan Kim
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