lkml.org 
[lkml]   [1998]   [Oct]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [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/

    \
     
     \ /
      Last update: 2005-03-22 13:44    [W:0.021 / U:29.812 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site