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    SubjectRe: [PATCH] Direct I/O bio size regression
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    Date
    On Wed, 2006-04-26 at 12:30 +1000, David Chinner wrote:
    > Got any data that you can share with us?
    >

    The thread was from July 2004 and was called:



    Re: [linux-audio-dev] Re: [announce]
    [patch] Voluntary Kernel Preemption
    Patch

    Also some info in thread:



    Re: [patch]
    voluntary-preempt-2.6.8-rc2-M5

    > Wrt latency, is the problem to do with large requests causing short
    > term latency? I thought that latency minimisation is the job of the
    > I/O scheduler, so if this is the case, doesn't this indicate a
    > deficiency of the I/O scheduler? e.g. the I/o scheduler could split
    > large requests to reduce latency, just like you merge adjacent
    > requests to reduce the number of I/Os and keep overall latency
    > low...
    >

    I think you are talking past each other - Jens is referring to scheduler
    latency, not IO latency.

    Lee

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