Record activity performance

Jon Nettleton jon.nettleton at
Thu Dec 23 10:08:33 EST 2010

On Thu, Dec 23, 2010 at 6:58 AM, Benjamin M. Schwartz
<bmschwar at> wrote:
> Just so everyone knows, there have recently been major speedups in the
> Theora encoder (libtheora), which is a bottleneck for Record performance.

Well part of it. See below.

>  These speedups are available in version 1.2-alpha1, which (despite the
> name) is the recommended version for all but the most conservative
> applications.  It has zero known bugs and is ABI-compatible with all
> preceding versions.

I have an rpm built that I can post if people are interested in testing.

Moreover one of the biggest problems we still have is with the Alsa
codec.  I have been looking at this on and off as my desktop has the
same problem.  This problem is also noticable if you try to run
pulseaudio on an XO.  You will see high cpu usage while the software
battles with the hardware to sync everything up and get it processed
at the proper timings.

While the faster encoding is of course welcomed and will ultimately
help our cause, we are fighting a hydra of problems with the Record
app on the XO hardware in my opinion.


More information about the Devel mailing list