Messages in this thread |  | | Date | Sun, 23 Sep 2001 10:27:16 -0300 (BRST) | From | Rik van Riel <> | Subject | Re: broken VM in 2.4.10-pre9 |
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On 23 Sep 2001, Eric W. Biederman wrote: > Rik van Riel <riel@conectiva.com.br> writes:
> > > I would also like to have time to investigate what happens if the pages > > > associated with a program load are handled in larger blocks, meta-pages > > > perhaps, which would at least cause many to be loaded at once on a page > > > fault, rather than faulting them in one at a time. > > > > This is an interesting thing, too. Something to look into for > > 2.5 and if it turns out simple enough we may even want to > > backport it to 2.4. > > filemap_nopage already does all of this except put the page in the > page table.
Exactly, there are two things we need to fix:
1) set up the page tables in a clustered way 2) make filemap_nopage() aware of sequential IO and teach it to do asynchronous readahead .. maybe even with drop-behind on the VMA level ?
regards,
Rik -- IA64: a worthy successor to i860.
http://www.surriel.com/ http://distro.conectiva.com/
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