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    SubjectRe: Preempt? (was Re: Cannot enable DMA on SATA drive (SCSI-libsata, VIA SATA))
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    On Tue, 2004-10-05 at 23:59, Jeff Garzik wrote:
    > The moral of the story is not to use preempt, as it
    > * potentially hides long latency code paths
    > * potentially introduces bugs, as we've seen with net stack and many
    > other pieces of code
    > * is simply not needed, if all code paths are fixed

    That's a pretty big if. If you require low latency now as opposed to
    Real Soon Now then preempt is the only option.

    Lee

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