[PD] Gem - CPU usage 98%

[B. Bogart]

Hello,

I have a gem 0.87 patch running on a PIII 700Mhz machine (256MB RAM)
that uses about 100% CPU, the machine still renders fine after years of
service. The only issue has been power-failures.

The patch mixed two videos (via alpha) at a time out of a bank of 4 that
were all loaded, but only two playing at a time. Each was a 256x256
photojpeg mov. This runs on an old geforce2 mx.

Also it loaded still images (jpegs) on the fly from the HDD.

This was on linux... (suse 8)

Oh and the patch used so much CPU that it could not even render properly
without the -rt flag. I think it was doing 30fps...

.b.


klaas de Baas wrote:
> Hello,
> 
> I am working on a patch, in which I use a webcam as a motiondetector, to
> drive another video (AVI, DV). (Every detected motion forwards a frame
> of the movie playing in pix_movie). I want this patch to be playing
> fullscreen in an exhibition for two months, non-stop. The problem is
> that I am worried about the CPU load - it hovers above 90% in Task
> Manager. (OS=WinXP) My concern is that the computer will not hold out on
> that load for that long.
> 
> I had hoped to solve this by buying a new graphics card, which I thought
> would have taken over the processing load. I have been experimenting
> with the Asus n6200 256 MB (a Nvidia Geforce 6200 card) and the Hercules
> ati Radeon 9000 128 MB. I'm aware that my Mobo does not support 8X AGP
> bus speed, but since I am mainly looking for 2d acceleration I hoped it
> would be ok.
> 
> CPU utilization is still high. My questions:
> - was I wrong in supposing that the GPU would take over processing tasks
> of the CPU?
> - what would be a realistic cpu load for 24 hours a day, 2 months?
> - Does anyone on the list have experience with running fullscreen
> gem-patches with specs such as pentium III, 800Mhz, 384 Mb, and do they
> have any pointers on how to optimize (such as using a different size
> video, codec, etc..?)
> 
> I am also working on another computer (faster pIV, 512MB etc, etc...). I
> noticed that playing a video in mediaplayer requires less than half the
> cpu load of playing it in pix-movie or pix-film.
> - Can anyone explain why this is?
> 
> Looking forward to hear from you.
> 
> Klaas
> 
> 
> windows XP, pIII 800Mhz, 384 MB, Abit VL 6 Mobo, Hercules ATI Radeon
> 9000 128Mb
> 
> 
> 
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