ATTO benchmark's all 0s I/O and its effect on benchmark results - PCPartPicker
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ATTO benchmark's all 0s I/O and its effect on benchmark results
  • Desperate-Science883@alien.topBEnglish
    1·
    11 months ago

    wtf is 0s i/o actually? can you explained it in lay man terms… so we the average joe people can have a better understanding of what you are trying to tell…

    • bizude@alien.topOPBEnglish
      1·
      11 months ago

      It’s when you write all zeroes to a drive. Some folks do this to securely wipe a drive.

      • chx_@alien.topBEnglish
        1·
        11 months ago

        Some folks do this to securely wipe a drive.

        Then some smartass controller runs a little RLE on it and then comes the surprise.

      • hanny_chris@alien.topBEnglish
        1·
        11 months ago

        low level format mechanism then? Do this event relevant to our daily dose usage of Storage???

  • bizude@alien.topOPBEnglish
    1·
    11 months ago

    Benchmarking can be tricky sometimes, and unfortunately as shown above sometimes manufacturers implement tricks to show better than realistic performance.

  • YumiYumiYumi@alien.topBEnglish
    1·
    11 months ago

    To see what ATTO is writing to the file, we wait until it has completed a write pass, and then cut power to the machine.

    I question how reliable this actually is. It might be fine, but I could see it not working as expected (e.g. OS didn’t flush all writes, or reverted something when rolling back the filesystem journal etc).
    Regardless, one would think that intercepting the WriteFile call and examining the buffer would be more reliable (or strip the FILE_FLAG_DELETE_ON_CLOSE flag when opening the file).