Re: [Qemu-devel] Wipe patch

[Brad Campbell <brad@wasp.net.au>]

ZIGLIO, Frediano, VF-IT wrote:
> Hi,
>   well, this is not a definitive patch but it works. The aim is to be
> able to wipe the disk without allocating entire space. When you wipe a
> disk the program fill disk with zero bytes so disk image increase to
> allocate all space. This just patch detect null byte writes and do not
> write all zero byte clusters.

This _looks_ like it would severely impact cpu load during a write.
Have you done any testing to determine if this is likely to impact a normal usage scenario?

Brad
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