Marcelo Tosatti wrote:
> On Sun, Apr 20, 2008 at 02:16:52PM +0300, Avi Kivity wrote:
>
>>> The iperf numbers are pretty good. Performance of UP guests increase
>>> slightly but SMP
>>> is quite significant.
>>>
>> I expect you're seeing contention induced by memcpy()s and inefficient
>>
On Sun, Apr 20, 2008 at 02:16:52PM +0300, Avi Kivity wrote:
> >The iperf numbers are pretty good. Performance of UP guests increase
> >slightly but SMP
> >is quite significant.
>
> I expect you're seeing contention induced by memcpy()s and inefficient
> emulation. With the dma api, I expect the
Marcelo Tosatti wrote:
> Introduce QEMUDevice, making the ioport/iomem->device relationship visible.
>
> At the moment it only contains a lock, but could be extended.
>
> With it the following is possible:
> - vcpu's to read/write via ioports/iomem while the iothread is working on
> som
Introduce QEMUDevice, making the ioport/iomem->device relationship visible.
At the moment it only contains a lock, but could be extended.
With it the following is possible:
- vcpu's to read/write via ioports/iomem while the iothread is working on
some unrelated device, or just copying
