Re: [PATCH]: 1/4 batch mark_page_accessed()

[Marcelo Tosatti]

On Sun, Nov 21, 2004 at 01:12:50PM -0800, Andrew Morton wrote:
> Nikita Danilov <nikita@xxxxxxxxxxxxx> wrote:
> >
> > Batch mark_page_accessed() (a la lru_cache_add() and lru_cache_add_active()):
> >  page to be marked accessed is placed into per-cpu pagevec
> >  (page_accessed_pvec). When pagevec is filled up, all pages are processed in a
> >  batch.
> > 
> >  This is supposed to decrease contention on zone->lru_lock.
> 
> Looks sane, althought it does add more atomic ops (the extra
> get_page/put_page).  Some benchmarks would be nice to have.

I'll run STP benchmarks as soon as STP is working again. 
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