<p><br>
On Dec 3, 2013 6:35 PM, "Stuart Morgan" <<a href="mailto:stuart@tase.co.uk">stuart@tase.co.uk</a>> wrote:<br>
><br>
> On Tuesday 03 Dec 2013 10:06:04 Jim Stichnoth wrote:<br>
> > On Tue, Dec 3, 2013 at 7:13 AM, Bryan Bennetts<br>
> <<a href="mailto:bryan.bennetts@gmail.com">bryan.bennetts@gmail.com</a>>wrote:<br>
> > > Hi all,<br>
> > ><br>
> > > I've upgraded to mythbuntu 13.10/mythtv 0.27 and am now finding that one<br>
> > > of my frontend's Watch Recordings view is somewhat sluggish.<br>
> > ><br>
> > > That machine is a Acer Revo 3700 (with 4G of ram IIRC) so not hugely<br>
> > > over-powered but on 0.26 there was no perceivable issue. I have tried<br>
> > > creating my own MythBuntu theme with the fanart turned off, but that has<br>
> > > not improved performance.<br>
> > ><br>
> > > It *seems* to be related to the length of the episodes list as when<br>
> > > scrolling down the left hand panel it is noticably faster for, say, films<br>
> > > (split second scrolling) than children's programs (of which we have<br>
> > > plenty,<br>
> > > can take a good 3-4 seconds to populate the right hand panel). This<br>
> > > implies that the menu *may* be doing an operation per episode.<br>
> > ><br>
> > > Anyone have any thoughts on how to diagnose/resolve this?<br>
> ><br>
> > I have this same issue on my ION frontends. I believe it has to do with a<br>
> > 0.27 change where the frontend now asks the backend to generate preview<br>
> > images at full resolution before scaling locally to the theme-specified<br>
> > resolution, instead of generating smaller preview images on the backend<br>
> > which are rescaled again on the frontend.<br>
><br>
> The scaling is done in a background thread, therefore wouldn't affect<br>
> responsiveness unless threading wasn't enabled. Moreover, since the preview<br>
> image is cached locally after scaling, it wouldn't affect scrolling through the<br>
> list unless there were always new recordings which required new preview<br>
> images. Which isn't to say that the issue isn't preview related somehow, just<br>
> that it's not related to the scaling.<br>
><br>
> --<br>
> Stuart Morgan<br>
> MythTV<br>
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<p>Hmm, well I'll try paring down the theme more to see if affects the behaviour. I would hope that the code isn't generating a preview for each episode just as the main tile is selected in the left hand list. </p>
<p>Cheers, Bryan. </p>