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Thread: AHCI vs. IDE Linux Performance Benchmarks

  1. #11
    Join Date
    Jul 2008


    Quote Originally Posted by Kano View Post
    Your description is wrong, first it's NCQ and it is not limited to reads
    No, it was spot on. These were just typos since I wrote it very fast and I didn't keep track of the latest SSD developments ;-)

  2. #12
    Join Date
    Oct 2006


    In my experience using AHCI makes a huge impact once you use software RAID devices - especially when it comes to responsiveness under load.
    In IDE mode, heavy IO would have simply bogged down my dual Xeon machines.
    w/ AHCI, even while running a tar backup w/ pbzip2, I can still use the machine.

    ... Though to be honest, I never took the time to benchmark it.

    - Gilboa
    DEV: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB + 2x3TB, GTX780, F21/x86_64, Dell U2711.
    SRV: Intel S5520SC, 2xX5680, 36GB, 4x2TB, GTX550, F21/x86_64, Dell U2412..
    BACK: Tyan Tempest i5400XT, 2xE5335, 8GB, 3x1.5TB, 9800GTX, F21/x86-64.
    LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F21/x86_64.

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