lkml.org 
[lkml]   [2006]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH] ia64: change usermode HZ to 250
    From
    Date
    On Thu, 2006-06-29 at 12:48 +0200, Jes Sorensen wrote:
    > Alan Cox wrote:
    > > Ar Iau, 2006-06-29 am 05:37 -0400, ysgrifennodd Jes Sorensen:
    > >> You have my vote for that one. Anything else is just going to cause
    > >> those broken userapps to continue doing the wrong thing. We should
    > >> really do this on all archs though.
    > >
    > > No need, all current mainstream architectures expose a constant user HZ.
    >
    Hi,

    > But you are still going to have the issue where someone installs their
    > own kernel and apps will break because of this?

    to answer that question with one word: no.

    read what Alan said: the HZ exposed to userspace is *constant*. For
    example, the i386 user visible HZ is 100, even if the kernel runs at a
    HZ of 250 or 1000.... Just when a HZ value gets exposed to userspace,
    it's transformed into a HZ=100 based value.

    And that's not a distribution thing, that's the kernel.org kernel
    honoring the stable-userspace-interface contract, and common sense..

    Greetings,
    Arjan van de Ven

    -
    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: 2006-06-29 12:58    [W:0.020 / U:1.348 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site