Messages in this thread Patch in this message |  | | Date | Sun, 7 Jan 2001 14:25:42 -0200 (BRST) | From | Marcelo Tosatti <> | Subject | Re: [PATCH *] 2.4.0 VM improvements |
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On Sun, 7 Jan 2001, Rik van Riel wrote:
> The patch is available at this URL: > > http://www.surriel.com/patches/2.4/2.4.0-tunevm+rss
I have one improvement on top of your patch.
Now its not more "rare" (as the comment on the code stated) to have pages with page->age == 0 being called on lru_cache_add.
This patch should make the overhead of calling lru_cache_add on pages with page->age == 0 smaller.
--- mm/swap.c.orig Sun Jan 7 15:59:37 2001 +++ mm/swap.c Sun Jan 7 16:11:21 2001 @@ -233,10 +233,12 @@ if (!PageLocked(page)) BUG(); DEBUG_ADD_PAGE - add_page_to_active_list(page); - /* This should be relatively rare */ - if (!page->age) - deactivate_page_nolock(page); + + if (page->age) + add_page_to_active_list(page); + else + add_page_to_inactive_dirty_list(page); + spin_unlock(&pagemap_lru_lock); }
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