Messages in this thread | | | Date | Mon, 28 Dec 2009 09:47:31 +0530 | From | Balbir Singh <> | Subject | Re: [PATCH -mmotm-2009-12-10-17-19] Prevent churning of zero page in LRU list. |
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* Rik van Riel <riel@redhat.com> [2009-12-27 23:12:07]:
> On 12/27/2009 10:57 PM, Balbir Singh wrote: > >* Balbir Singh<balbir@linux.vnet.ibm.com> [2009-12-28 09:26:39]: > > > >>* Rik van Riel<riel@redhat.com> [2009-12-27 22:22:20]: > >> > >>>On 12/27/2009 09:53 PM, Minchan Kim wrote: > >>>> > >>>>VM doesn't add zero page to LRU list. > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > >>Frequent moving of zero page should ideally put it to the head of the > >>LRU list, leaving it untouched is likely to cause it to be scanned > >>often - no? Should this be moved to the unevictable list? > >> > > > >Sorry, I replied to wrong email, I should have been clearer that this > >question is for Minchan Kim. > > The answer to your question is all the way up in > Minchan Kim's original email. > > The zero page is never on the LRU lists to begin with. >
Aahh.. my bad... I should have looked at it more closely!
-- Balbir
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