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    SubjectRe: [patch] preemptive kernel, preemptive-2.3.52-A7
    On Sun, Mar 26, 2000 at 06:44:30PM +0200, Andi Kleen wrote:
    > yodaiken@fsmlabs.com writes:
    > >
    > > Solution2: reduced copy writes.
    > > Improved responsiveness
    > > Improved throughput
    > > Appropriate use of modern scatter/gather I/O hardware.
    >
    > And how would you implement a shared buffer cache with that ?

    We've already got raw io so we don't commit to having everything in
    a buffer cache. But we can have a buffer cache by requiring libc to
    use
    write:
    if size is too big
    syscall get_kiobuf_handle ptr,size, COW
    write_kiobuff(handle);
    or something similar.





    >
    >
    > -Andi

    --
    ---------------------------------------------------------
    Victor Yodaiken
    FSMLabs: www.fsmlabs.com www.rtlinux.com
    FSMLabs is a servicemark and a service of
    VJY Associates L.L.C, New Mexico.


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