[Freeswitch-users] OPUS and CPU load

[Oleg Stolyar]

Steve, you are correct, I was comparing Opus to my current production mix
of G.711 and  G.722.  Here are more precise results on AWS M3.2xl instance
with 8 CPUs for a 10 person conference with all clients connecting from
Chrome via WebRTC.
FS CPU usage was jumping more or less within these ranges throughout the
conference:

PCMU: 4.3% - 5.0%
722: 7.6% - 8.3%
OPUS: 25% - 50%

On Thu, Apr 7, 2016 at 9:04 PM, Steve Underwood <steveu at coppice.org> wrote:

> You should be seeing a significant different between G.711 and G.722, so
> bundling them together doesn't make sense. G.711 takes only a minute
> amount of CPU effort. G.722 takes a significant amount.
>
> Regards,
> Steve
>
> On 04/08/2016 12:49 AM, Oleg Stolyar wrote:
> > In my tests OPUS transcoding seems to consume 5-6 times more CPU then
> > G.711 or G.722.
> >
> > On Thu, Apr 7, 2016 at 9:39 AM, Michael Jerris <mike at jerris.com
> > <mailto:mike at jerris.com>> wrote:
> >
> >     I've seen estimates that opus is up to twice as heavy as g729.
> >     webrtc encryption adds some (although not huge) load on top of
> >     that.  20 opus sessions per cpu seems low, are these particularly
> >     slow processors or virtual processors?
> >
> >
> >     > On Apr 7, 2016, at 12:25 PM, Agustí Ubalde
> >     <aubalde at presenceco.com <mailto:aubalde at presenceco.com>> wrote:
> >     >
> >     > Hi all,,
> >     >
> >     > I have found that the CPU usage with users WebRTC + OPUS is
> >     high. With 2vCPUs, 10 users use 25% of CPU. Anyone know if this
> >     load is normal?
> >
>
>
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