lkml.org 
[lkml]   [2007]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [patch 05/11] syslets: core code

    * Linus Torvalds <torvalds@linux-foundation.org> wrote:

    > And the whole "lock things down in memory" approach is bad. It's doing
    > expensive things like mlock(), making the overhead for _single_ system
    > calls much more expensive. [...]

    hm, there must be some misunderstanding here. That mlock is /only/ once
    per the lifetime of the whole 'head' - i.e. per sys_async_register().
    (And you can even forget i ever did it - it's 5 lines of code to turn
    the completion ring into a swappable entity.)

    never does any MMU trick ever enter the picture during the whole
    operation of this thing, and that's very much intentional.

    Ingo
    -
    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: 2007-02-14 22:09    [W:0.020 / U:1.344 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site