| Printable Version of Topic
Click here to view this topic in its original format |
| Unofficial VirtualDub Support Forums > Newbie Questions > Smp? |
| Posted by: ThirtyBird Aug 26 2002, 05:42 PM |
| Hi, I'm not a new user to VirtualDub, I've been using it for quite a bit of time, and I think the answer I'm looking for is in Avery's FAQ, but the FAQ disappeared during his web redesign it seems. My question - Does Virtualdub utilize multiple processors if they are present? |
| Posted by: phaeron Aug 27 2002, 03:35 AM |
| That particular question isn't in there anyway. Input I/O and audio runs in one thread, video filter/compression in another, and output I/O in a third. The highest parallelism will occur when you have audio compression and video compression/filtering active. Both video compression and video filtering run in one thread, though, so that is frequently a big bottleneck. Because Avisynth runs as an input driver, any Avisynth processing will run in parallel to VirtualDub's video processing. |
| Posted by: ChristianHJW Aug 27 2002, 05:25 AM |
| As Avery said, if you want to use Vdub on a SMP machine ( have one here ) its to consider to use AVISynth as external filtering/resizing tool ( www.avisynth.org i guess ), i get about 90 - 95% load on my SMP here when doing that ... |
| Posted by: ThirtyBird Aug 27 2002, 05:40 AM |
| Appreciate the response guys - I think I may be taking a look at a few of the AviSynth filters. I commonly do resize and deinterlace using the built in video filter, but if I can eek out an extra thread and speed it up, I will give that some exploration when I finish my new system! |