Re: [PATCH 1/2] Have kswapd keep a minimum order free other than order-0

[Nick Piggin <nickpiggin@yahoo.com.au>]

Mel Gorman wrote:
> On Tue, 15 May 2007, Nicolas Mailhot wrote:
> 
>> Le lundi 14 mai 2007 a 19:24 +0100, Mel Gorman a ecrit :
>>
>>> On (14/05/07 11:13), Christoph Lameter didst pronounce:
>>>
>>>> I think the slub fragment may have to be this way? This calls
>>>> raise_kswapd_order on each kmem_cache_create with the order of the 
>>>> cache
>>>> that was created thus insuring that the min_order is correctly.
>>>>
>>>> Signed-off-by: Christoph Lameter <clameter@sgi.com>
>>>>
>>>
>>> Good plan. Revised patch as follows;
>>
>>
>> Kernel with this patch and the other one survives testing. I'll stop
>> heavy testing now and consider the issue closed.
>>
> 
> That is good news, thanks for the report.
> 
>> Thanks for looking at my bug report.
>>
> 
> Thank you very much for your testing. I know it was a lot to ask to tie 
> a machine up for a few days.

Hmm, so we require higher order pages be kept free even if nothing is
using them? That's not very nice :(

-- 
SUSE Labs, Novell Inc.

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