[mythtv-users] 0.22 MythVideo slow first time cover art displays

[Johnny]

> I've been noticing a performance issue with trunk on all my boxes including
> my desktop which is a core 2 duo with 4GB of ram (should be sufficient).
>
> The navigation with MythVideo seems to hesitate for ~2 seconds when moving
> between items on occasion. I've narrowed this down to happening only when
> the metadata has recently been updated. I'm guessing it has something to do
> with image scaling / caching, because after the first initial pause, it
> doesn't happen again.
>
> Is this repeatable for other users?
>
> If this is from resolution-specific image caching, can we create an option
> to cache them all in a batch job so that the user experience is smoother? Or
> possibly implement a progress bar and letting the user know what is
> happening?
>
> This will def need some dev input down the road, but I left this off the
> -dev list for now since I haven't isolated the problem to be beyond my setup
> just yet.

There are a couple of lengthy threads recently discussing this issue
at length. Check the archives. It is because of the theme specific
effects being applied and then cached. There currently is no way to
script it or do it in batch mode. The changes needed to be applied by
mythUI so it would be challenging to do it outside of mythfrontend. It
was suggested that this will be improved for .23 but won't likely
change for .22.