qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] Re: virtio: Add memory statistics reporting to the balloon


From: Rusty Russell
Subject: [Qemu-devel] Re: virtio: Add memory statistics reporting to the balloon driver
Date: Tue, 10 Nov 2009 13:12:02 +1030
User-agent: KMail/1.12.2 (Linux/2.6.31-14-generic; KDE/4.3.2; i686; ; )

On Tue, 10 Nov 2009 03:02:06 am Adam Litke wrote:
> A simpler approach is to collect memory statistics in the virtio
> balloon driver and communicate them to the host via the device config space.

There are two issues I see with this.  First, there's an atomicity problem
since you can't tell when the stats are consistent.  Second, polling is
ugly.

A stats vq might solve this more cleanly?
Rusty.




reply via email to

[Prev in Thread] Current Thread [Next in Thread]