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Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to th
From: |
Adam Litke |
Subject: |
Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver |
Date: |
Fri, 08 Jan 2010 11:01:31 -0600 |
On Thu, 2010-01-07 at 16:30 -0200, Luiz Capitulino wrote:
> On Thu, 7 Jan 2010 15:58:30 -0200
> Luiz Capitulino <address@hidden> wrote:
>
> > I like Daniel's idea too. In practice 'refresh-balloon' is going to
> > be Anthony's idea #1 for the QMP case, which seems the right way to
> > do it with QMP.
>
> Hm, something that has just occurred to me: it's easy to have
> async messages in the user Monitor, we could add a new type of
> user print callback called async_print.
>
> This new callback would be called by the Monitor when the async
> message API is called but we are in user mode.
>
> This is really today's user_print, but user data is printed
> asynchronously.
There is one thing I am struggling with as I try to implement this
asynchronous behavior. How can I suspend the monitor thread to wait for
the stats update to come through? I see qemu_cond_timedwait(), but that
appears to only be used for a VM's cpu threads. I also see the bottom
half infrastructure, but I am not sure if that is appropriate either.
Any pointers would be greatly appreciated.
--
Thanks,
Adam
- [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, (continued)
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Daniel P. Berrange, 2010/01/07
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Adam Litke, 2010/01/07
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Avi Kivity, 2010/01/07
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Anthony Liguori, 2010/01/07
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Luiz Capitulino, 2010/01/07
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Luiz Capitulino, 2010/01/07
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Anthony Liguori, 2010/01/08
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Luiz Capitulino, 2010/01/08
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver,
Adam Litke <=
- Re: [Qemu-devel] Re: [RFD] virtio: Add memory statistics reporting to the balloon driver, Luiz Capitulino, 2010/01/08