On Wed, 11/09 17:13, Stefan Hajnoczi wrote:
> +struct AioPollHandler {
> +QLIST_ENTRY(AioPollHandler) node;
> +
> +AioPollFn *poll_fn; /* check whether to invoke io_fn() */
> +IOHandler *io_fn; /* handler callback */
> +void *opaque; /* user-defined argument to c
On Thursday, November 10, 2016 11:17:35 AM, Stefan Hajnoczi
wrote:
> > I think the question is not "is there any polling to be done" but rather
> > "is there anything that requires looking at a file descriptor". If you
> > have e.g. an NBD device on the AioContext you cannot poll. On the other
On Wed, Nov 09, 2016 at 06:30:11PM +0100, Paolo Bonzini wrote:
Thanks for the feedback. I hope that Karl will be able to find a
QEMU_AIO_POLL_MAX_NS setting that improves the benchmark. At that point
I'll send a new version of this series so we can iron out the details.
> > +static bool run_pol
On 09/11/2016 18:13, Stefan Hajnoczi wrote:
> Poll handlers are executed for a certain amount of time before the event
> loop polls file descriptors. This can be used to keep the event loop
> thread scheduled and may therefore recognize events faster than blocking
> poll(2) calls.
>
> This is a
