I'm still having problems with IVTV hogging my CPU and the problem appears to be getting worse.
I've started limiting what I use that machine for to try to rule out other issues. For example, I suspected at first that the fact that I was using mencoder to transcode stuff from mpeg 2 to mpeg 4 while captures were happening might be the cause, but I stopped doing encodings and the problem continued. It thought maybe things were overheating, so I got a tornado case fan (84 CFM, about 3 times the airflow of a normal case fan) just to be on the safe side, but there's no change in the problem. I upgraded from 0.3.6q to 0.3.8. Still, no improvement. I added the ivtv_dynbuf=0 option, but that didn't help. I'm not sure what else I can do. Basically, I do captures most of the day, using cat /dev/video > movie.mpg Now, most of the time, this works fine. But from time to time, and it seems to be happening more frequently, the cat process will shoot up from 1% or less CPU to about 40-50% and just stick there for the remainder of the capture. When this happens, the video will start dropping frames (noticeably). In fact, I don't know if it's related, but it seems the dropped frame problem actually got worse (the duration of dropped frames is longer) when I set the ivtv_dynbuf=0, but it may have been the upgrade to 0.3.8. I made both changes on the same day. This is really driving me nuts. The machine is a Celeron 2.6 and the card is a PVR-150. This is really causing me a lot of headaches because I basically have to kill any captures and restart them if the CPU spikes. It's costing me a lot of wasted time. Pete ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ ivtv-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ivtv-devel
