high CPU usage playing MP3 (1 Viewer)

[kevin939]

TV-Server Version: 1.0.2
MediaPortal Version: 1.0.2
MediaPortal Skin: blue3 wide
Windows Version: xp - sp3 fully patched
CPU Type: intel 650
HDD: samsung 500G
Memory: 1G pc3200
Motherboard: ?
Video Card: ati hd2400
Video Card Driver: 8.5
Sound Card: realtek
Sound Card AC3: ac3 realtek
Sound Card Driver: latest (226)
1. TV Card: hauppauge nova-t-500
1. TV Card Type: dvb-t
1. TV Card Driver: latest
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec: cyberlink pd7
Satelite/CableTV Provider:
HTPC Case: advent
Cooling: fans
Power Supply: 250W
Remote: generic mCE compatible
TV: panasonic 1080p plasma
TV - HTPC Connection: dvi to hdmi


I noticed recently, after upgrading to 1.0.2, a periodic high CPU usage. This was noticeable as the fans kicked in.

After a little investigation using perfmon remotely onto my htpc I realised that mediaportal used more CPU than I would have expected and periodically it would rise to 100% and most is down to MP running privileged code. A specific case of this is when playing a simple mp3 file. The privileged usage hits 60%

When I play the same file using VLC I hardly see any change in CPU usage. I also have mediaportal installed on another machine and this does NOT have the same problem.

Any ideas?

 

[kevin939]

high CPU also on EPG screen

Doing some further digging I have realised that when the EPG screen is showing the CPU is again very high - 40%. (see epg).
If I run a TV program then the usage drop dramatically with negligible privilege time (see tv).
If I run with the EPG up and TV is a small windows then the usage climbs (see tv&epg)

Any help much appreciated - this is causing me all sorts of problems (basically the fans become noisy)


cheers

 

[kevin939]

Just a bit more information.

I ran TV, showed the EPG with the little TV on screen and then stopped the TV leaving just the EPG. The graph is below - it shows low usage while running tv, an increase when the epg (GUIDE) is shown and then another jump when the tv is stopped. Feels silly to me - surely displaying a static image is harder than a video

I really would like to know what's going one here.......