[MAC] High CPU usage on PPC (PowerPC) Mac [Archive]

AllanMarcus

2009-04-25, 11:56

Hello,

First: THANKS for XBMC for PPC!

I notice that when XBMC is just idle, it still seems to use up significant CPU time (40 according to Activity Monitor). There doesn't seem to be any activity on the xbmc.log file. Is there anything I can check to see what it might be doing?

Thanks,

Allan

OSX Version: 10.5.6
Platform Mac: PowerMac PPC 2.7 dual (8GB RAM)
Install Method: drag and drop
SVN Revision: 9.04-beta1 r19578M
Detailed Instructions to Reproduce the Problem: Launch XBMC and do nothing.

davilla

2009-04-25, 18:42

Hello,

First: THANKS for XBMC for PPC!

I notice that when XBMC is just idle, it still seems to use up significant CPU time (40 according to Activity Monitor). There doesn't seem to be any activity on the xbmc.log file. Is there anything I can check to see what it might be doing?

Thanks,

Allan

OSX Version: 10.5.6
Platform Mac: PowerMac PPC 2.7 dual (8GB RAM)
Install Method: drag and drop
SVN Revision: 9.04-beta1 r19578M
Detailed Instructions to Reproduce the Problem: Launch XBMC and do nothing.

enable vsync always, that might help.

AllanMarcus

2009-04-25, 21:52

Do you mean

Settings: Appearance: Screen: Vertical Blank Sync -> Always Enabled?

I just set that setting and CPU usage when XBMC is idle drops to 20, which is better.

I'm just curious, what is it doing when idle that takes 20% of the CPU?

Thanks,

Allan

davilla

2009-04-25, 22:01

Do you mean

Settings: Appearance: Screen: Vertical Blank Sync -> Always Enabled?

I just set that setting and CPU usage when XBMC is idle drops to 20, which is better.

I'm just curious, what is it doing when idle that takes 20% of the CPU?

Thanks,

Allan

Rendering the GUI from scratch at 60 fps. It's something that will be address in a future release (not 9.04).

CASHMON3Y

2009-04-25, 22:15

Rendering the GUI from scratch at 60 fps. It's something that will be address in a future release (not 9.04).
Does it do that on all platforms or just PPC?

althekiller

2009-04-25, 22:24

All.

david.frith

2009-05-04, 20:32

I have noticed on my Mac Mini G4 that if XBMC is the foreground application and I hold the mouse down on one of the Mac's menu's (NB not the XBMC menus) then the CPU usage drops to a very low level. This stops all the screen updates in the XBMC window. This doesn't work if XBMC isn't at the front.

Obviously this isn't something that could be used as a workaround on its own but does anyone know of anything automatic that could get the same behaviour from XBMC? It's a bit like freezing a process by starving it of CPU cycles until I choose to re-enable it (rather than quitting it completely).