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    Benchmarking Differences

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by 1994F7PT, Dec 9, 2011.

  1. 1994F7PT

    1994F7PT Notebook Evangelist

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    Why are my ATTO results for writes so different from the CDM and AS SSD??

    see attached

    cheers

    Ben
     

    Attached Files:

    1994F7PT, Dec 9, 2011
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  2. tilleroftheearth

    tilleroftheearth Wisdom listens quietly...

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    Because the V2 with the SF controller only operates at 'rated' speeds when the data is highly compressible (like ATTO 'writes' are).
     
    tilleroftheearth, Dec 10, 2011
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  3. Phil

    Phil Retired

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    Yes ATTO uses 0 fill data. Completely unrealistic. This is why OCZ recommends ATTO.

    By the way, running CDM with 3x50MB can skew results a lot. 3x 100MB is bit more reliable in my opinion.
     
    Phil, Dec 10, 2011
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  4. 1994F7PT

    1994F7PT Notebook Evangelist

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    cool cool

    so as and cdm use uncompressed data :)
     
    1994F7PT, Dec 10, 2011
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  5. 1994F7PT

    1994F7PT Notebook Evangelist

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    sorry, incompressible data :)
     
    1994F7PT, Dec 10, 2011
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  6. Phil

    Phil Retired

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    Yes and CDM has a setting that lets you choose 0 fill data.

    ATTO doesn't only use compressible data, it uses 0 fill data which is like empty data. It can be compressed 100%.

    Once I saw tests with 50% compressible data. This would be most realistic in my opinion. I'm not sure how they did it.
     
    Phil, Dec 11, 2011
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