Messages in this thread | | | Date | Mon, 25 Feb 2002 22:40:40 -0300 (BRT) | From | Rik van Riel <> | Subject | Re: 2.4.19-preX: What we really need: -AA patches finally in the tree |
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On Mon, 25 Feb 2002, Martin J. Bligh wrote:
> > Not to begin the flamewar, but no thanks. rmap-12f blows -aa away AFAIK > > on this P200 w/ 64MB ram. > > rmap still sucks on large systems though. I'd love to see rmap > in the main kernel, but it needs to get the scalability fixed first. > The main problem seems to be pagemap_lru_lock ... Rik & crew > know about this problem, but let's give them some time to fix it > before rmap gets put into mainline ....
This isn't very near on my TODO list though, I've got the following big items coming up shortly:
rmap 13: O(1) page_launder <- working on it now
rmap 14: pte-highmem support
In addition to this I'm merging some small pieces of code with both Linus and Marcelo.
Making the locking more scaleable wrt. the pagemap_lru_lock could be either a simple change or a rework of the way the VM does locking. I'm not sure which way to go...
regards,
Rik -- "Linux holds advantages over the single-vendor commercial OS" -- Microsoft's "Competing with Linux" document
http://www.surriel.com/ http://distro.conectiva.com/
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