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In most cases, if you're assigning more than the physical number of cores you'll probably see a slight decrease in performance. I suppose it's possible that if the physical cores aren't being taxed heavily then there's some advantage to the virtual cores, but in our testing the virtual cores don't add anything. We've done a fair amount of testing in this regard. Granted, we're testing our plugins, not just AE, but I would be surprised if the results were different if it was just AE. Cheers, Jim ---------------------- Jim Tierney President Digital Anarchy http://www.digitalanarchy.com From: After Effects Mail List [mailto:AE-List@media-motion.tv] On Behalf Of Stephen van Vuuren > If you are assigning more cores to AE that are physically on your CPU, you're not getting anything additional out of multiproc rendering compared to stopping at the number of physical cores. Are you sure about this? My DCP renders (rendering JPG2K with XYZ color transform) on a 4 physical cores is much slower than rendering on 7 (or even 8 if the machine is otherwise unused) cores. For that type of renders, HTT imposes only a mild penalty. >If you are also buying RAM to support those virtual cores, you're potentially wasting money. This relates to the above point – for renders that do well with HTT, they need RAM. And have plenty of background RAM available, I’ve yet to run into a scenario where I feel like I have “too much RAM”. Plus RAM previews etc. and RAM always seems like a good buy. stephen van vuuren 336.202.4777 http://www.outsideinthemovie.com/ A film is – or should be – more like music than like fiction. It should be a progression of moods and feelings. The theme, what’s behind the emotion, the meaning, all that comes later. –Stanley Kubrick |
