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View Full Version : CPU Usage and encoding...


hkl8324
22nd April 2006, 23:34
My experience tells me that all encoder out there (be it XviD, X.264, Windows Media...) always use 100% CPU power when encoding. The problem is, my CPU will get overheated and the motherboard will kindly shutdown the computer for me to protect my CPU when the CPU is @ 100% for more then 2 hours.

It there any tools that can limit the CPU usage of encoding software?

(I would rather run the encode @ 2fps @ 10% CPU usage and using 3 days to finish the encode then to encode @20fps @100 CPU using a few hours....)

jggimi
23rd April 2006, 00:22
If your hardware is shutting down due to heat, you can 1) add additional fans inside the case, 2) remove the cover to improve air circulation, 3) upgrade your cpu fan/heat sink, 4) alter BIOS settings ... such as a) if overclocking, return to factory specifications, b) set hardware performance lower than standard; depending on your BIOS this may be "safe" mode or similarly named mode, if available.

Depending on your encoder, either you can set the encoder to use lower-than-normal process priority, or, you can set the process priority in your OS to use less-than-normal priority. However, in all of the Windows versions I've used, this does not *limit* CPU usage, it only sets CPU priority in relation to other processes.

For more information, see http://forum.doom9.org/showthread.php?t=54130

hkl8324
23rd April 2006, 02:54
Thanks, but....my computer is a laptop computer (Yeah, Pentium-M overheat and shutdown, I think it is pretty ridiculous).
I tried lifting up my computer by putting 4 CD case under the computer 4 corners, it does help a bit, but it still get overheated.
The only solution is to dedicate a fan blowing my computer to help ventilation, which I dont want to do.

So I think maybe apply CPU utilization quota is the only way to go, maybe?

setarip_old
23rd April 2006, 03:03
From what I've seen, it seems to be a fact of life that video conversion programs will use as much CPU processing power as they find available. So, if you first have an unrelated program running that uses 30% and then start a video conversion program (regardless of priority settings), the video conversion program will use 70% - so that total combined usage when running a video conversion program will always be 100%, whether you're running 1 or 5 programs...

And from postings here and at other forums, it appears that laptops are simply not well-suited for heavy duty video processing...

hkl8324
23rd April 2006, 03:18
WOW...That Japanese is genius
After googling for half an hour, I finally find a software that suits my need....(It even has virtualdub in one of the screenshots....)

http://mion.faireal.net/BES/


Hope this information is useful for others.

setarip_old
23rd April 2006, 04:36
@hkl8324

Sounds like it was written just for you ;>}

Have you tried it out yet?

hkl8324
23rd April 2006, 07:06
@hkl8324

Sounds like it was written just for you ;>}

Have you tried it out yet?

Yes....it works like a charm...

I love encoding @ 2fps :lol:

setarip_old
23rd April 2006, 07:15
Seriously speaking, if you intend to do a significant amount of video processing, it would probably be worth your while, if feasible, to invest in an inexpensive desktop computer...