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

[Supriya Kannery <supriyak@linux.vnet.ibm.com>]

On 11/04/2011 07:59 AM, Zhi Yong Wu wrote:
> On Sun, Oct 30, 2011 at 6:33 PM, Supriya Kannery
> <supriyak@linux.vnet.ibm.com>  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