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Thread: EnhanceIO, Bcache & DM-Cache Benchmarked

  1. #1
    Join Date
    Jan 2007
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    14,813

    Default EnhanceIO, Bcache & DM-Cache Benchmarked

    Phoronix: EnhanceIO, Bcache & DM-Cache Benchmarked

    Three different Linux disk caching methods for the Linux kernel were compared: EnhanceIO, Bcache, and DM-Cache. But which of these disk caching methods is the fastest when mixing SSDs and HDDs? Here's some results...

    http://www.phoronix.com/vr.php?view=MTM4ODA

  2. #2
    Join Date
    Jun 2012
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    34

    Default

    Why the fsck are bcache and EnhanceIO flushing if the upper layers don't request it? Is there a problem with the io stack that is being worked around, or is it entirely superfluous?

  3. #3
    Join Date
    Jun 2012
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    34

    Default

    Also, EnhanceIO having lower write latency than the HDD in write-through mode seems suspect.

  4. #4
    Join Date
    Jun 2011
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    14

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    I wonder why people keeps adding "confidential information" warnings to their posts to an open mailing list...

  5. #5
    Join Date
    Dec 2008
    Posts
    27

    Default

    Bias perhaps?
    Stec Inc made EnhanceIO

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