[FFmpeg-devel] VP8 sliced threading

Michael Niedermayer michaelni at gmx.at
Wed Jul 18 00:26:48 CEST 2012


On Tue, Jul 17, 2012 at 05:27:53PM +0200, Reimar Döffinger wrote:
> On Tue, Jul 17, 2012 at 04:42:11PM +0200, Michael Niedermayer wrote:
> > On Mon, Jul 16, 2012 at 09:47:16AM +0200, Reimar Döffinger wrote:
> > > On 16 Jul 2012, at 02:01, Michael Niedermayer <michaelni at gmx.at> wrote:
> > > > On Wed, Jul 11, 2012 at 11:26:14PM -0400, Daniel Kang wrote:
> > > >> My implementation no longer uses sched_yield().
> > > > 
> > > > patches applied by luca and merged by me
> > > 
> > > And thus we accumulate more buggy threading code that will randomly fail and make helgrind cry.
> > > Please someone at least mark the synchronization variables used outside a locked area as volatile.
> > 
> > i posted 2 patches that i hope should address this issue
> 
> Thank you, I think they are good. Did you try to benchmark a bit to
> ensure it has no unexpected bad effects? Even if it's a bug fix IMHO
> I think it's a good idea to know if it changes anything.

didnt had time to benchmark yet

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

There seems to be only one solution to NIH syndrom, ... a shooting squad
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