lkml.org 
[lkml]   [2007]   [Apr]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [REPORT] cfs-v4 vs sd-0.44
    Date
    On Sunday 22 April 2007 08:54, Denis Vlasenko wrote:
    > On Saturday 21 April 2007 18:00, Ingo Molnar wrote:
    > > correct. Note that Willy reniced X back to 0 so it had no relevance on
    > > his test. Also note that i pointed this change out in the -v4 CFS
    > >
    > > announcement:
    > > || Changes since -v3:
    > > ||
    > > || - usability fix: automatic renicing of kernel threads such as
    > > || keventd, OOM tasks and tasks doing privileged hardware access
    > > || (such as Xorg).
    > >
    > > i've attached it below in a standalone form, feel free to put it into
    > > SD! :)
    >
    > But X problems have nothing to do with "privileged hardware access".
    > X problems are related to priority inversions between server and client
    > processes, and "one server process - many client processes" case.

    It's not a privileged hardware access reason that this code is there. This is
    obfuscation/advertising to make it look like there is a valid reason for X
    getting negative nice levels somehow in the kernel to make interactive
    testing of CFS better by default.

    --
    -ck
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-04-22 02:13    [W:0.041 / U:69.352 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site