rtspsrc cpu optimization

[Mailing List SVR]

I opened a bug here to keep track of this strange behaviour:

https://bugzilla.gnome.org/show_bug.cgi?id=740149

Nicola

Il 28/10/2014 18:24, Eloi Bail ha scritto:
> On Fri, Oct 24, 2014 at 5:00 AM, Tim Müller <tim at centricular.com 
> <mailto:tim at centricular.com>> wrote:
> > If you can upgrade your GLib version to 2.42.x, or apply the patches
> > from this bug:
> >
> > https://bugzilla.gnome.org/show_bug.cgi?id=730807
> >
> > that might give you some easy performance improvements already.
> Thanks for your help. I switched to glib 2.42.0 and do not see 
> significant CPU improvement so far.
>
> I remade some perf stat measures  (*http://fpaste.org/145793/50742514/*)
> You can see that the whole pipeline context switch is 0.005 M/sec. 
> udpsrc (RTP packets reader) take 0.004 M/sec.
>
> Using perf top again I do not see any particular function consuming 
> CPU ( see *http://fpaste.org/145795/45076731/*) Do you agree with that ?
> Adding a small sleep allow me to save 4-5% on udpsrc (see patch in 
> attachment).
>
> I checked the resulting mkv file. No frames are dropped using the 
> workaround. I would like to avoid the use of sleep but it looks like I 
> do not have other simpler solution for the moment.
>
> Please feel free to advice me.
> Cheers,
>
>
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