Tip: "Maximum numbers of rendering threads" tweak

Webhorse wrote on 7/10/2012, 3:48 PM

Options -> Preferences -> Video

My "Maximum numbers of rendering threads" was set to 16, but I have only 4 cores (8 threads due to HT)

I changed that to 8, so it matches the cores/threads on my PC, and now I dont get a error when rendering AVC, and it renderes 2-3 times faster now.

Comments

john_dennis wrote on 7/11/2012, 1:05 AM

Apparently, 16 is the default number for 64 bit. I reduced my thread count for 64 bit work from 16 to match the 4 cores that my processor has.

Two minutes fifty-five seconds on the timeline rendered to the MainConcept Internet HD 720p codec in 88 second with 16 threads and 87 seconds with 4 threads. The difference is within experimental error. I was not having any failures in either case.

paul_w wrote on 7/11/2012, 5:22 AM

And dont forget to try even lower values of threads - if you use GPU acceleration for rendering, 2-3 threads may make things even faster. Lots of testing has been done in this in the past and experimentation is the key.

Paul.