[sheepdog] [PATCH v2] sheep: remove disk write cache

Liu Yuan namei.unix at gmail.com
Tue Mar 5 10:38:29 CET 2013


On 03/05/2013 05:19 PM, MORITA Kazutaka wrote:
> This removes disk cache from 'w' option because it shows poor
> performance against writethrough I/O requests because of many syncfs
> calls.  Currently, object cache doesn't break block semantic against
> live migration and VM shutdown, so it will be fit for most users.
> 
> This breaks backward compatibility.  The syntax will be as follows:
> 
>  $ sheep -w size=<size>[,directio][,dir=<dir>]

Applied, thanks.

Yuan



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