On Thu, Feb 21, 2013 at 11:02:31AM -0600, Anthony Liguori wrote:
> "Michael S. Tsirkin" writes:
>
> > On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
> >> "Michael S. Tsirkin" writes:
> >>
> >> > On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
> >> >> This is a em
Il 27/02/2013 13:08, Markus Armbruster ha scritto:
>>> >> The main blocker to this series seems to be hubs, because they interact
>>> >> with multiple NetClients and thus could span multiple AioContexts.
>>> >> Adding proper locking there is going to be interesting. :)
>> >
>> > I think folks are p
Stefan Hajnoczi writes:
> On Mon, Feb 25, 2013 at 06:53:04PM +0100, Paolo Bonzini wrote:
>> Il 25/02/2013 18:35, mdroth ha scritto:
>> > Yup, don't mean to get ahead of things, my main interest is just in how
>> > we might deal with the interaction between NetClients and virtio-net
>> > dataplane
On Wed, Feb 27, 2013 at 05:41:40PM +0800, liu ping fan wrote:
> On Fri, Feb 22, 2013 at 12:51 AM, Michael S. Tsirkin wrote:
> > On Thu, Feb 21, 2013 at 06:45:54PM +0200, Michael S. Tsirkin wrote:
> >> On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
> >> > "Michael S. Tsirkin" wri
On Fri, Feb 22, 2013 at 12:51 AM, Michael S. Tsirkin wrote:
> On Thu, Feb 21, 2013 at 06:45:54PM +0200, Michael S. Tsirkin wrote:
>> On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
>> > "Michael S. Tsirkin" writes:
>> >
>> > > On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fa
On Tue, Feb 26, 2013 at 1:53 AM, Paolo Bonzini wrote:
> Il 25/02/2013 18:35, mdroth ha scritto:
>>> > Moving more of the os_host_main_loop_wait to AioContext would be
>>> > possible (timers are on the todo list, in fact), but we should only do
>>> > it as need arises.
>> Were you planning on hangi
On Mon, Feb 25, 2013 at 06:53:04PM +0100, Paolo Bonzini wrote:
> Il 25/02/2013 18:35, mdroth ha scritto:
> > Yup, don't mean to get ahead of things, my main interest is just in how
> > we might deal with the interaction between NetClients and virtio-net
> > dataplane threads without introducing ad-
Il 25/02/2013 18:35, mdroth ha scritto:
>> > Moving more of the os_host_main_loop_wait to AioContext would be
>> > possible (timers are on the todo list, in fact), but we should only do
>> > it as need arises.
> Were you planning on hanging another GSource off of AioContext to handle
> timers?
No,
On Fri, Feb 22, 2013 at 09:53:11AM +0100, Paolo Bonzini wrote:
> Il 22/02/2013 00:38, mdroth ha scritto:
> > On Thu, Feb 21, 2013 at 11:12:01PM +0100, Paolo Bonzini wrote:
> >> Il 21/02/2013 22:07, mdroth ha scritto:
> >
> > 100% agree. In particular hw/dataplane/event-poll.c should be the
Il 22/02/2013 12:06, Kevin Wolf ha scritto:
> or example think of
> the read-only qcow2 snapshot BDS that we've been talking about before.
>
> So it would have to be more like one AioContext per connected component
> in the BDS graph
Yes. For now it means one AioContext per top-level BDS, but th
Il 22/02/2013 11:43, Stefan Hajnoczi ha scritto:
>> >
>> > It can and should stay. :) BHs are tied to an AioContext. Running
>> > thread-creation BHs from the AioContext's main thread ensures that the
>> > worker threads inherit the right attributes for e.g. real-time.
> When I say "this can sta
Am 21.02.2013 um 18:05 hat Paolo Bonzini geschrieben:
> Il 21/02/2013 17:33, Stefan Hajnoczi ha scritto:
> > * BlockDriverState <-> AioContext
> >
> >It probably makes sense to bind a BlockDriverState to an AioContext
> >in which its file descriptors and aio activity happens.
>
> ... and
On Thu, Feb 21, 2013 at 05:38:04PM -0600, mdroth wrote:
> On Thu, Feb 21, 2013 at 11:12:01PM +0100, Paolo Bonzini wrote:
> > Il 21/02/2013 22:07, mdroth ha scritto:
> > >> >
> > >> > 100% agree. In particular hw/dataplane/event-poll.c should be the
> > >> > first
> > >> > to go away, but AioCont
On Thu, Feb 21, 2013 at 06:05:44PM +0100, Paolo Bonzini wrote:
> Il 21/02/2013 17:33, Stefan Hajnoczi ha scritto:
> > This especially means things like adding live
> > migration support or solving other limitations. The limitations are
> > there to motivate core QEMU refactoring, so that core QEMU
Il 22/02/2013 00:38, mdroth ha scritto:
> On Thu, Feb 21, 2013 at 11:12:01PM +0100, Paolo Bonzini wrote:
>> Il 21/02/2013 22:07, mdroth ha scritto:
>
> 100% agree. In particular hw/dataplane/event-poll.c should be the first
> to go away, but AioContext provides the functionality that P
On Thu, Feb 21, 2013 at 11:12:01PM +0100, Paolo Bonzini wrote:
> Il 21/02/2013 22:07, mdroth ha scritto:
> >> >
> >> > 100% agree. In particular hw/dataplane/event-poll.c should be the first
> >> > to go away, but AioContext provides the functionality that Ping Fan
> >> > needs. But hw/dataplane
Il 21/02/2013 22:07, mdroth ha scritto:
>> >
>> > 100% agree. In particular hw/dataplane/event-poll.c should be the first
>> > to go away, but AioContext provides the functionality that Ping Fan
>> > needs. But hw/dataplane/vring.c will probably be here for a longer
> Has there been any discussi
On Thu, Feb 21, 2013 at 06:05:44PM +0100, Paolo Bonzini wrote:
> Il 21/02/2013 17:33, Stefan Hajnoczi ha scritto:
> > Interesting patch series. I want to share my thoughts on the status of
> > dataplane and what I'm currently working on. There will probably be
> > some overlap that we can coordin
On Thu, Feb 21, 2013 at 06:45:54PM +0200, Michael S. Tsirkin wrote:
> On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
> > "Michael S. Tsirkin" writes:
> >
> > > On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
> > >> This is a emulation to virtio-blk dataplane, which
On Thu, Feb 21, 2013 at 11:02:31AM -0600, Anthony Liguori wrote:
> "Michael S. Tsirkin" writes:
>
> > On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
> >> "Michael S. Tsirkin" writes:
> >>
> >> > On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
> >> >> This is a em
Il 21/02/2013 17:33, Stefan Hajnoczi ha scritto:
> Interesting patch series. I want to share my thoughts on the status of
> dataplane and what I'm currently working on. There will probably be
> some overlap that we can coordinate.
>
> First, I want to eventually delete hw/dataplane/ :). That is
"Michael S. Tsirkin" writes:
> On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
>> "Michael S. Tsirkin" writes:
>>
>> > On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
>> >> This is a emulation to virtio-blk dataplane, which push the data
>> >> handling out of bigl
On Thu, Feb 21, 2013 at 10:15:58AM -0600, Anthony Liguori wrote:
> "Michael S. Tsirkin" writes:
>
> > On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
> >> This is a emulation to virtio-blk dataplane, which push the data
> >> handling out of biglock. And it is a try to implement this
On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
> This is a emulation to virtio-blk dataplane, which push the data
> handling out of biglock. And it is a try to implement this process
> in userspace, while vhost-net in kernel.
>
> The iperf's result show it improving the perfermance
"Michael S. Tsirkin" writes:
> On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
>> This is a emulation to virtio-blk dataplane, which push the data
>> handling out of biglock. And it is a try to implement this process
>> in userspace, while vhost-net in kernel.
>
> What's the motivat
On Thu, Feb 21, 2013 at 08:54:44PM +0800, Liu Ping Fan wrote:
> This is a emulation to virtio-blk dataplane, which push the data
> handling out of biglock. And it is a try to implement this process
> in userspace, while vhost-net in kernel.
What's the motivation for doing this? Speed up the slirp
This is a emulation to virtio-blk dataplane, which push the data
handling out of biglock. And it is a try to implement this process
in userspace, while vhost-net in kernel.
The iperf's result show it improving the perfermance of base line,
but still slower than vhost-net (maybe the rx path need op
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