Re: [Spice-devel] [PATCH spice] RFC: remove guest side video time-stamping

2014-11-04 Thread Christophe Fergeau
On Tue, Nov 04, 2014 at 10:00:06AM -0500, Marc-André Lureau wrote: > > > - Original Message - > > Hey, > > > > On Sun, Nov 02, 2014 at 10:24:13PM +0100, Marc-André Lureau wrote: > > > The multimedia time is defined by the server side monotonic time [1], > > > but the drawing time-stamp i

Re: [Spice-devel] [PATCH spice] RFC: remove guest side video time-stamping

2014-11-04 Thread Marc-André Lureau
- Original Message - > Hey, > > On Sun, Nov 02, 2014 at 10:24:13PM +0100, Marc-André Lureau wrote: > > The multimedia time is defined by the server side monotonic time [1], > > but the drawing time-stamp is done in guest side, so it requires > > synchronization between host and guest. Th

Re: [Spice-devel] [PATCH spice] RFC: remove guest side video time-stamping

2014-11-04 Thread Christophe Fergeau
Hey, On Sun, Nov 02, 2014 at 10:24:13PM +0100, Marc-André Lureau wrote: > The multimedia time is defined by the server side monotonic time [1], > but the drawing time-stamp is done in guest side, so it requires > synchronization between host and guest. This is expensive, when no audio > is playing

[Spice-devel] [PATCH spice] RFC: remove guest side video time-stamping

2014-11-02 Thread Marc-André Lureau
The multimedia time is defined by the server side monotonic time [1], but the drawing time-stamp is done in guest side, so it requires synchronization between host and guest. This is expensive, when no audio is playing, there is a ~30x/sec wakeup to update the qxl device mmtime, and it requires mar