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Thread: AHCI vs. IDE Linux Performance Benchmarks

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  1. #1
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    Default AHCI vs. IDE Linux Performance Benchmarks

    Phoronix: AHCI vs. IDE Linux Performance Benchmarks

    Hitting OpenBenchmarking.org this weekend are some interesting benchmarks comparing performance of AHCI vs. IDE modes under Linux from an AMD Fusion system...

    http://www.phoronix.com/vr.php?view=MTE0OTE

  2. #2
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    For an evolution of a standard it sure looks dissapointing from those benchmarks

  3. #3
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    Default Suicide

    It is too bad that libata maintainer Andre Hedrick recently committed suicide.

    https://lwn.net/Articles/508222/

  4. #4
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    Quote Originally Posted by uid313 View Post
    It is too bad that libata maintainer Andre Hedrick recently committed suicide.

    https://lwn.net/Articles/508222/
    Ouch...who's stepping forward to take his place, as this is an important library?

  5. #5
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    I suppose this is a typical 5400 rpm HDD so it's kind of expected that it doesn't make much difference. Try the same thing with a fast SSD and see if the results are the same.

  6. #6
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    Quote Originally Posted by devius View Post
    I suppose this is a typical 5400 rpm HDD so it's kind of expected that it doesn't make much difference. Try the same thing with a fast SSD and see if the results are the same.
    I agree with that

  7. #7
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    Quote Originally Posted by devius View Post
    I suppose this is a typical 5400 rpm HDD so it's kind of expected that it doesn't make much difference. Try the same thing with a fast SSD and see if the results are the same.
    You've got it backwards. For slower drives, NCQ should help a lot, as heads won't have to seel as much. However, in my experience the difference is no noticeable.
    For SSDs, NCQ means nothing.
    Other AHCI improvements are not about speed (afaik).

  8. #8
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    Quote Originally Posted by DeepDayze View Post
    Ouch...who's stepping forward to take his place, as this is an important library?
    I don't know. Perhaps Jeff Garzik?

    https://lwn.net/Articles/508467/

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