Messages in this thread | | | Date | Mon, 09 Apr 2012 14:10:03 -0400 | From | Rik van Riel <> | Subject | Re: [RFC PATCH 0/2] Removal of lumpy reclaim |
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On 04/06/2012 04:31 PM, Hugh Dickins wrote: > On Fri, 6 Apr 2012, Andrew Morton wrote: >> On Wed, 28 Mar 2012 17:06:21 +0100 >> Mel Gorman<mgorman@suse.de> wrote: >> >>> (cc'ing active people in the thread "[patch 68/92] mm: forbid lumpy-reclaim >>> in shrink_active_list()") >>> >>> In the interest of keeping my fingers from the flames at LSF/MM, I'm >>> releasing an RFC for lumpy reclaim removal. >> >> I grabbed them, thanks. > > I do have a concern with this: I was expecting lumpy reclaim to be > replaced by compaction, and indeed it is when CONFIG_COMPACTION=y. > But when CONFIG_COMPACTION is not set, we're back to 2.6.22 in > relying upon blind chance to provide order>0 pages.
Is this an issue for any architecture?
I could see NOMMU being unable to use compaction, but chances are lumpy reclaim would be sufficient for that configuration, anyway...
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