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Re: [Nbd] question about i/o scheduling

On Tue, Aug 3, 2010 at 11:22 PM, Wouter Verhelst <w@...112...> wrote:

> You can try to change the I/O scheduler. The default for most devices is
> "cfq", but that isn't very useful for nbd. The 'deadline' one could
> yield better results.

Good point. Yes, cfq definitely does not work well with nbd. At the
least you'll see performance problems, at worst complete hangs of the
nbd device, depending on kernel version.

deadline has been the default for nbd for about 2 years now, so this
shouldn't be an issue anymore.


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