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Date: Wed, 11 Nov 2009 17:00:02 +0200
From: Avi Kivity <avi@...hat.com>
To: Adam Litke <agl@...ibm.com>
CC: "Daniel P. Berrange" <berrange@...hat.com>,
Jamie Lokier <jamie@...reable.org>,
Anthony Liguori <aliguori@...ibm.com>, agl@...ux.vnet.ibm.com,
linux-kernel@...r.kernel.org, qemu-devel@...gnu.org,
virtualization@...ts.linux-foundation.org
Subject: Re: [Qemu-devel] Re: virtio: Add memory statistics reporting to the
balloon driver
On 11/11/2009 03:26 PM, Adam Litke wrote:
> On Wed, 2009-11-11 at 10:12 +0000, Daniel P. Berrange wrote:
>
>> This all suggests that we should only update the stats from the guest
>> when something on the host actually asks for them by issuing the QEMU
>> monitor command. We don't want any kind of continuous polling of stats
>> at any frequency, if nothing is using these stats on the host.
>>
> Agreed. The next version of the patch will remove the timer completely.
> We'll wake up in response to config change notifications only.
>
A vq with its own interrupt would be much nicer.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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