[Qemu-devel] Re: [RFC PATCH 04/20] Make QEMUFile buf expandable, and introduce qemu_realloc_buffer() and qemu_clear_buffer().

[Anthony Liguori]

On 04/23/2010 04:53 AM, Avi Kivity wrote:
> On 04/21/2010 08:57 AM, Yoshiaki Tamura wrote:
> > Currently buf size is fixed at 32KB.  It would be useful if it could
> > be flexible.
>
> Why is this needed?  The real buffering is in the kernel anyways; this 
> is only used to reduce the number of write() syscalls.

With vmstate, we really shouldn't need to do this magic anymore as an 
optimization.

Regards,

Anthony Liguori