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Vegas 12 rendering times increased suddenly
I rendered a video on my new machine and it took 40 minutes. However, I had a small change to make (adding a graphic for a few seconds) and rendered the project again. This time it took just under 2 hours. I was monitoring my CPU performance the whole and noticed a significant difference. The original render was using 90% CPU whereas the second render is using no more than 35%. Nothing about my project or render settings have been changed yet somehow Vegas rendered it slower than before. What could be the cause of this? I set Vegas to a higher process priority and increased the RAM it used from 200MB to 4GB and there is no change. I have 16gb memory and 3.5 Ghz processor yet Vegas utilizes barely any of it now.
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4 Replies
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rendering times worse for just that project or for every project ?
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Was the graphic you added, a high resolution graphic?
Steve Rhoden
(Cow Leader)
Film Editor & Compositor.
Filmex Creative Media.
https://www.facebook.com/FilmexCreativeMedia
1-876-832-4956 -
I set Vegas to a higher process priority and increased the RAM it used from 200MB to 4GB and there is no change.
You can’t force a program to use more RAM than it needs. If you are talking about the RAM preview, that is only used when you preview a selection of the timeline using Shift-B. (But experiments have shown that you should have some, but not zero preview RAM).
It sounds like Windows has more processes running than the first time you encoded your files. MANY Windows programs and codecs leave copies of themselves running in the background after their first use – to make them seem to load and run faster. MS Office and most browsers are the biggest culprits. The only way to have an apples to apples comparison is to restart Windows before each “render as”.
Steve Mann
MannMade Digital Video
http://www.mmdv.com -
It was not a high resolution. And yes there other things running at the time. After testing some more I noticed it only takes to render as part of a batch render. Rendering the video by itself produces the shorter render even with the same settings.
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