[mythtv-users] MythTV Raspberry Pi2 frontend testers

[Lawrence Rust]

On Fri, 2016-01-01 at 18:39 +1100, Kingsley Turner wrote:
> On 31/12/15 17:36, rob e wrote:
> > firstly, thanks Lawrence for all your hard work ... it's really coming 
> > along nicely, I managed to install Myth 27 on the latest Raspbian-Jessie 
> > (installed via noobs)
> 
> Here here!
> 
> I've spent some many hours playing with Mythfrontend and the RPi today.
> 
> I have the "TV" mythbox which is BE+FE, and now the rPi frontend on another 
> TV connected to the backend over wired gigabit ethernet.
> I recently upgraded the BE box, it's a reasonably powerful machine.
> 
> 
> Playback of live TV and Recorded TV (which is MPEG2) worked fine, except 
> that it was really blocky - like a heavily compressed youtube video.
> 
> Some of the h.264 MKV packed videos I tried were a bit hit & miss. One 
> played perfectly, with both sound and subtitles.  Another was so jerky, I 
> was getting less than a frame a second.
> 
> However the #1 problem was browsing the "videos" section.
> There's about 12 directories in my upper-level video tree, but it took the 
> RPi about 40 seconds to bring up the nav-panel.
> If I went into a subdirectory of this (which has ~317 folders) it took 
> around 2 minutes to come back.
> 
> What exactly is going on during this browse?

Hi Kingsley,

Thanks for the feedback.

The slowness that you are seeing is, I believe, due to multiple remote
MySQL queries which appear to be very slow on the RPi.  I have some
patches that alleviate the problem by caching some dbase operations but
they're quite substantial changes so I don't want to push them until
after 0.28 is done & dusted.  I could add them to my fixes-0.27-rpi2
branch if you wanted to try them?

-- Lawrence Rust