lkml.org 
[lkml]   [2001]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectScheduler, Can we save some juice ...
    Date
    On Wednesday 19 December 2001 21:50, Rik van Riel wrote:
    > On Tue, 18 Dec 2001, Linus Torvalds wrote:
    > > The thing is, I'm personally very suspicious of the "features for that
    > > exclusive 0.1%" mentality.
    >
    > Then why do we have sendfile(), or that idiotic sys_readahead() ?
    >
    > (is there _any_ use for sys_readahead() ? at all ?)
    >
    > cheers,
    >
    > Rik


    OK, here's another 0.1% for you. Considering how Linux SMP
    doesn't have high CPU affinity, would it be possible to make a
    patch such that the additional CPUs remain in deep sleep/HALT
    mode until the first CPU hits a high-water mark of say 90%
    utilization? I've started doing this by hand with the (x)pulse
    application. My goal is to save electricity and cut down on
    excess heat when I'm just browsing the web and not compiling
    or seti@home'ing.


    --
    timothy.covell@ashavan.org.
    -
    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: 2005-03-22 13:14    [W:0.021 / U:61.400 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site