All cpu cores (atom threads) under 25% still only 15 fps ?

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joosu
Posts: 4
Joined: Thu Mar 17, 2011 10:03 am

All cpu cores (atom threads) under 25% still only 15 fps ?

Post by joosu »

On a AMD 5000+ dualcore CPU I can get 640x480@25 fps but on a Atom 330 cpu I'm stuck with 15 fps on the same IP camera..
This is weird because all of the Atoms four threads run under 25% cpu usage.

I have libjpeg-turbo 1.1 installed and working beautyfully in both machines, actually on the Atom CPU it made a HUGE difference in cpu loads but the FPS is still the same 15?

I've changed the kernel.shmmax value to 2147483647 , is that too big or something?

I'm very impressed the libjpeg-turbo + Atom 330 cpu combination, I've checked twice my options and configs on the AMD 5000+ and Atom 330 zoneminders but they are the same.

Cameras (Heden Visioncam) push-mode works fine and with the cams own www-ui software with both machines I can get smooth 25 fps but somehow Zoneminder on the Atom board is now differently configured. What could I have missed??

Perhaps I should point out, that the AMD 5000+ cpu cannot always make steady 25fps recordings with ZM either, but usyally it can.

But if I'm stuck with 15 fps , it seems that Atom 330 with libjpeg-turbo can handle even up to 4 such recording streams.. very impressive!
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