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On Fri, Aug 10 2012, Paul Hartman wrote: |
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> On Fri, Aug 10, 2012 at 2:22 PM, Alan McKinnon <alan.mckinnon@×××××.com> wrote: |
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>> You also don't need an IO scheduler - ssd access is random like |
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>> RAM, no heads moving in and out so no sector ordering to worry about. |
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>> Configure the scheduler as NOOP in kernel config if all drives are ssd's |
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> |
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> I've read some contradictory reports about the best scheduler for SSD. |
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> Apparently some SSD controllers are tuned for sequential reads/writes |
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> (drives that lean heavily on compression, I would imagine?) and for |
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> those drives cfq or deadline may be the better choice. I would try |
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> them all and use whatever works best for your workload. |
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I see. Thanks. |
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allan |
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