[mythtv-users] Frontend Raspberry Pi setup issues

[Mike Perkins]

On 25/07/17 09:45, Stefan Davids wrote:
> On 24/07/17 23:45, DryHeat122 . wrote:
>> I can't find any settings that throttle the wireless.  Anyway, I got it
>> connected to a wired connection, and that *significantly* improved the
>> FE startup speed.  Sadly I am still having the choppy playback problem.
>> So maybe this h.264 content is just too much for the RPi3 to handle?
>
> Wireless can easily not be fast enough to stream HD.  You can test your connection speed with iperf
> on the frontend and the backend.  I think my rPi3 peaks around 600 kilobytes/s (ie around 5
> Megabits/s) when watching UK HD channels and you will never get as through put what the wifi claims
> to have connected at so do check it with iperf.
>
> (Also it makes a massive difference how good the aerial is for wifi. I've not tried the rPi3 but I
> couldn't reliably stream music onto a rPi2 unless I used a proper Wifi dongle with an obvious aerial
> so I'm not sure how good the built in one will be.)
>
> Should be absolutely fine watching h264 CPU wise.
>
> What deinterlacer are you using?  The main variable I found was that and if you chose the wrong one
> it really struggled on HD.  If you're up to date with mythtv-light you can use the "Advanced"
> hardware one and it should be fine.
>
> If it is struggling CPU wise the little overheating icon generally appears in the top right quite
> quickly.
>
> If you upload a small example of what it looks to be struggling with somewhere I'm happy to try it
> on mine.
>
> Stefan
>
Where you are makes a difference. With a wired connection, the bandwidth is all yours and nobody 
else can interfere with it. With wireless, you have to share the same bandwidth with every man and 
his dog who has wifi within, I dunno, maybe a quarter of a mile. That could be 15-20 people or more 
all trying to download cat videos.

-- 

Mike Perkins