[mythtv-users] Machine idle at frontend menu and see 60% cpu usage due to 9959

[Greg Grotsky]

I have recently noticed that the frontend menu system is lagging badly.  I
did some researching and found that when sitting at the menu and watching
KDE System Guard it reports between 50 and 70% cpu usage.  I did some long
and painful divide and conquer of mythtv versions and deteremined that
Issac's changeset 9959 is the cause of this extra cpu usage.  On versions
sub 9959, I see around 5 to 10% cpu usage when idle.

06:59 Changeset *[9959]* by ijr <http://cvs.mythtv.org/trac/changeset/9959>

   - trunk/mythtv/libs/libmythui/mythscreenstack.h
   - trunk/mythtv/libs/libmythui/myththemebase.cpp
   - trunk/mythtv/libs/libmythui/mythuitype.cpp
   - trunk/mythtv/libs/libmythui/xmlparsebase.cpp
   - trunk/mythtv/themes/G.A.N.T./base.xml

Themes can now define a 'backgroundwindow' element that are more complex
than just a single image, and will be present on all screens using mythui.
See GANT for an example.

Other changes: fix theme reloading, close small font memory leak, allow
images to request to be full-screen, themes can override stuff in
base.xmlif so desired, add alpha/pulse controls to the generic item
type..

Refs #12 <http://cvs.mythtv.org/trac/ticket/12>
Thx.
-Greg
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