Understanding SSD Performance Metrics

Discussion in 'Processors, Motherboards & Memory' started by Ashmelee, Dec 22, 2012.

  1. Ashmelee

    Ashmelee Newbie

    Hi Everyone,

    This is my first post in the forum, so forgive me if I ask a silly question.

    I am currently working on a project to research SSD performance, and I have been using a benchmark tool (AS SSD Benchmark) to gather information and analyze it. There are a few categories measured in the benchmark and I'm sad to say I really do not know what they mean, and what would be acceptable results on these tests.

    Here is an example of the test results:
    Drive: Samsung SSD PM810 FDE 2

    Seq Read: 233.23 MB/s
    Seq Write: 222.43 MB/s
    4K Read: 10.57 MB/s
    4K Write: 18.02 MB/s
    4K-64Thrd Read: 105.82 MB/s
    4K-64Thrd Write: 39.92 MB/s
    Acc.time Read: 0.343 ms
    Acc.time Write: 0.211 ms
    Read Score: 140
    Write Score: 80
    Total Score: 294

    The results I have gathered, from two different SSD models vary so much. Without a thorough understanding of what is being measured in these tests and if a lower/higher score is better, I am quite lost in a sea of data :) I have spoken to both Samsung and Dell looking for a performance baseline from them, but they are unable to provide it.

    Any help you can offer would be greatly appreciated.

    Thank You!
  2. Adrian Wong

    Adrian Wong Da Boss Staff Member

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