On Saturday 19 May 2007 21:33, Sander Sweers wrote:
> On za, 2007-05-19 at 20:14 +0200, Hans Verkuil wrote:
> > Hi all,
>
> Hi,
>
> > I would appreciate it if people could start testing the latest ivtv
> > on the 0.10 branch, available here:
>
> So far I must say it has improved stability, which is good :)
>
> > The current driver has a problem with copying data from the MPEG
> > card to memory that are done using PIO instead of DMA (for good
> > reasons). Unfortunately PIO accesses are slow, so too much time is
> > spent inside the interrupt handler. This can lead to missing clock
> > ticks and problems with remotes (key hits that are missed).
>
> The remotes is a lot more responsive.
>
> > However, I did not have much time to test it thoroughly, so I'd
> > very much appreciate it if people could start testing this and
> > report whether or not any new problems were introduced.
>
> It is now doing 2 recording at once and if I see anything out of the
> ordinary I'll post it to the list, INIT below.
>
> Greets
> Sander
>
> PS: I do not use VBI much (almost never actually).
That's not a requirement for these tests: I'm interested in overall
stability, not just the VBI stability. This patch touches the core
irq/dma/pio processing and so it has a big impact and needs good
testing.
Thanks!
Hans
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