Messages in this thread | | | Date | Sun, 4 Oct 1998 23:27:17 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: [patch] Re: Out Of Memory in v. 2.1 |
| |
On Sun, 4 Oct 1998, Meelis Roos wrote:
>I'm not a mm expert (far from it really) but the last two lines sound >suspicios to me. Isn't this what kswapd is made for? Are you duplicating >its work? IOW, it seems not so clear to me.
kswapd has to do the background pageout. If at __get_free_pages() time we are short in memory we can' t wait kswapd so we are _used_ to try to do some work by hand. This was so in 2.0 and 2.1. Look at the patch and you' ll notice that __get_free_pages() was running try_to_free_pages in some cases also before my patch. Note also that with my patch try_to_free_pages() is not run at every __get_free_pages but only if there' s no _one_ free page. You must follow the tricky macro used in __get_free_pages to notice this.
Andrea[s] Arcangeli
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |