Re: [Qemu-devel] [v8 Patch 0/6]Qemu: Host pagecache setting from cmdline and monitor

[Supriya Kannery]

On 11/04/2011 07:59 AM, Zhi Yong Wu wrote:
> On Sun, Oct 30, 2011 at 6:33 PM, Supriya Kannery
> <address@hidden>  wrote:
> > Currently cache setting of a block device cannot be changed
> > without restarting a running VM. Following patchset is for
> > enabling dynamic change of cache setting for block devices
> > through qemu monitor. Code changes are based on patches
> > from Christoph Hellwig and Prerna Saxena.
> >
> > This patchset introduces
> > a. monitor command 'block_set_hostcache' using which host
> >    pagecache setting for a block device can be changed
> >    dynamically.
> I got a bit confusion. Is it used to change host pagecache setting on
> hyperviser or on guest?
> This block device said by you is for guest, right?

  This command is used for changing pagecache setting of
the image files in host which are acting as block devices
for guest.

-thanks, Supriya