[mythtv-users] Very slow EPG guide - movement, etc (XMLTV source, 66 channels)

[David Kubicek]

Hello,

I have a problem with the Program Guide, be it called from the LiveTV or 
the main menu. After opening, it's loading for about 4sec. When that's 
finished (loaded) it takes about 4sec to move the cursor just one line 
up or down, and about 1sec to move left and right. Because of this, the 
guide is almost unusable. I have to schedule all my recordings via 
MythWeb, which is rather impractical, because the whole setup is 
/intended to be/ completely standalone, operated with just a bluetooth 
PS3 BD remote.

My setup is Core 2 Duo 2.8GHz, local FE+BE+DB [SVN trunk], disk is SSD 
OCZ Vertex Turbo (measured 250MB/s sustained read). I think that's 
quite a powerful machine, it shouldn't be an issue. I have 66 unique 
channels (80 total), two video sources with different providers and the 
combined XMLTV I generate for 12 days ahead is usually about 14MB 
(there's all kinds of details - long descriptions, sub-titles, ep info, 
complete credits, premiere/last-showing, icon URL's, rating, years, 
dates, categories, etc).

I'd like to ask if this is a known issue and/or what can I do about it? 
The basic guide doesn't contain much information, it shows 4 time slots 
per 5 channels, no details, only program titles and categories. It 
shouldn't be so resource intensive (if that's the reason).

I'm a programmer myself - if there are any suggestions w.r.t. 
optimizations or code changes, I'm volunteering to do it and test it.

Thank you,

-- 
David Kubicek