[mythtv-users] Graphite theme slow in "Watch Recordings"

Jim Stichnoth stichnot at gmail.com
Thu Oct 8 14:17:29 UTC 2009

On Thu, Oct 8, 2009 at 7:05 AM, Jim Morton <Jim at morton.hrcoxmail.com> wrote:
> myShade wrote:
>> Hi all..
>> I've been using Grapite since commited to trunk.
>> All been fine except for entering the "Watch Recording" screen, also
>> move between recorded shows has latency of ~5sec.
>> So ive been looking for commits to improve this, which were a couple of
>> days ago, but no change.
>> Today i tried mythbuntu-theme commited and was surprised how fast it
>> was.
>> Then i tried Terra, which has somewhat similar layout as Graphite.
>> Terra also proved speed of light compared to Graphite.
>> I deleted themecache for Graphite, with no change.
>> I followed this list about slow loads, first entering etc.... But thats
>> not it. It dead slow all the time, going back and forth between shows.
>> Any other suggestions? My screen is 1920x1080.
>> Br Fredrik
> Others have said that changing to QT painter instead of OpenGL has worked.
> --
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> Jim Morton
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I see something similar, except that for me, Graphite and mythbuntu
are slow, and metallurgy and blue-abstract are fast, when moving
between recorded programs.  It doesn't matter whether I use the QT or
OpenGL painter.

I watched the output of "top" while this was happening on the slow
themes.  Each time I moved to a different recording, the mythbackend
process would pop up.  I think it's being used to regenerate a preview
image for the recording, and apparently it's either not caching the
preview image, or not recognizing that the preview image is already

This is on an ION system, which is of course slower than modern
systems so performance issues like this show up more.


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