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    SubjectRe: [PATCH] speed up SATA
    Eric D. Mudama wrote:
    > On Sun, Mar 28 at 9:37, Nick Piggin wrote:
    >
    >> I think 32MB is too much. You incur latency and lose
    >> scheduling grainularity. I bet returns start diminishing
    >> pretty quickly after 1MB or so.
    >
    >
    > 32-MB requests are the best for raw throughput.
    >
    > ~15ms to land at your target location, then pure 50-60MB/sec for the .5
    > seconds it takes to finish the operation. (media limited at that point)
    >
    > Sure, there's more latency, but I guess that is application dependant.
    >

    What about a queue depth of 2, and writing that 32MB in 1MB requests?
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