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    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.

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