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On Thursday 4 January 2007 19:24, Andrew Gaydenko wrote: |
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> In kernel config there is an opportunity to select 'Default I/O |
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> scheduler'. It may be 'Anticipatory I/O scheduler' or 'Deadline I/O |
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> scheduler' or 'CFQ I/O scheduler'. If try to avoid very clever words |
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> (like at kernel.org :-)), which scheduler is the best for desktop, |
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> taking in mind Gentoo specifics (background syncing/updating) and |
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> audio-oriented software? Must I supply some additional info to make |
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> selection? |
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The kernel help for the CFQ scheduler says: |
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"The CFQ I/O scheduler tries to distribute bandwidth equally |
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among all processes in the system. It should provide a fair |
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working environment, suitable for desktop systems." |
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and, BTW, you can change the scheduler on a per-device basis at run time, |
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using a command like |
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echo ${scheduler} > /sys/block/${dev}/queue/scheduler |
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where ${dev} is the device you want to apply the scheduler to (eg, hda, |
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sda, etc.), and ${scheduler} is the type of scheduler you want (eg, |
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noop, anticipatory, cfq, deadline). |
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-- |
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