Re: [Qemu-devel] [PATCH] qcow2: Allow different cluster sizes

[Avi Kivity]

Kevin Wolf wrote:
> Add an option to specify the cluster size of a newly created qcow2 image.
> Default is 4k which is the same value that was hard-coded before.
>   

I did an autotest run with 64K clusters, and everything seems to work 
fine.  I think we should change the default to 64K; this both improves 
performance and reduces memory utilization for large disks.

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