lkml.org 
[lkml]   [2006]   [Mar]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: gettimeofday order of magnitude slower with pmtimer, which is default
    OGAWA Hirofumi wrote:
    > john stultz <johnstul@us.ibm.com> writes:
    >
    >
    >> In my TOD rework I've dropped the triple read, figuring if a problem
    >> arose we could blacklist the specific box. This patch covers that, so it
    >> looks like a good idea to me.
    >>
    >> I've not tested it myself, but if you feel good about it, please send it
    >> to Andrew.
    >>
    >
    > Current patch is the following. If I'm missing something, or you have
    > some comment, please tell me. (Since I don't have ICH4, ICH4 detection
    > is untested)
    >
    Doesn't it make sense to mark the port as user accessible in the I/O
    permissions bitmap and export it as a vsyscall? that would save the
    syscall overhead.


    --
    Do not meddle in the internals of kernels, for they are subtle and quick to panic.

    -
    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: 2006-03-22 20:14    [W:2.855 / U:0.080 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site