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Thread: Sandforce Life Time Throttling

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  1. #11
    Xtreme Mentor
    Join Date
    Feb 2009
    Posts
    2,597
    Here is a comparison of write speeds using different levels of compression rates.

    For sequential xfres there are three main bands

    • 0% to 8% Compression = ~100% of max speed
    • 25% to 46% = Compression = ~45% of max speed
    • 67% to 100% Compression = ~30% of max speed

    4K QD1
    Performance approximately the same regardless of compression ratio

    4K QD 4 & QD 16
    Compressible 4K xfers are assisted with queue depth.

    Click image for larger version. 

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    EDIT: I added an X25-M just to help show where compression might be helping.
    Last edited by Ao1; 07-31-2011 at 03:44 PM.

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