Messages in this thread | | | Date | Thu, 2 Apr 1998 14:44:55 +0200 (MET DST) | From | Rik van Riel <> | Subject | Re: 2.1.91 swap performance: jerky. |
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On Thu, 2 Apr 1998, Alan Cox wrote:
> > The main problem as far as I see is that while the pages can be quickly > > free'd when required, the fragmentation worries me. It needs to be > > integrated with the buddy system somehow (ie it should coalesce using the > > buddy system, but we could then re-extract the page when required. Or > > something). > > Don't we have enough fragmentation problems and fixes collected in the > mm layer now to hint that maybe the right answer post 2.2 is to go from > a buddy to zone allocator or similar.
Yes, we really should. With 2.1.91, we've effectively shown that the buddy system doesn't work... At least not for 'small' systems.
Rik. +-------------------------------------------+--------------------------+ | Linux: - LinuxHQ MM-patches page | Scouting webmaster | | - kswapd ask-him & complain-to guy | Vries cubscout leader | | http://www.fys.ruu.nl/~riel/ | <H.H.vanRiel@fys.ruu.nl> | +-------------------------------------------+--------------------------+
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