Re: [PATCH 2/2 v2] dma: ipu_idmac: do not lose valid received data in the irq handler

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On Mon, 7 Feb 2011 12:09:15 +0100 (CET)
Guennadi Liakhovetski <g.liakhovetski@xxxxxx> wrote:
...
> > I can't try mplayer since I don't have mplayer setup for this.
> > But looking at the mplayer source I don't see why it should
> > behave differently. Depending on mode mplayer queues 2 or 6
> > buffers. Testing with my test app with 6 queued buffers shows
> > no issues, here the buffer numbers toggle correctly, too.
> 
> Ok, I've done a couple more tests. With larger frames, and, therefore 
> lower fps - yes, with your patch buffers toggle correctly. Whereas in my 
> tests with smaller frames and higher fps either only one buffer is used, 
> or one is used much more often, than the other, e.g., 0 0 0 1 0 0 0 1 0... 
> Could you try to verify? Without your patch with any fps buffers toggle 
> consistently.

How small are the frames in you test? What is the highest fps value in
your test?

Thanks,
Anatolij
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