3 Replies Latest reply: Jul 14, 2014 10:23 AM by SAFEHARBOR11 RSS

    New computer - slow encoding!

    mikec82 Community Member

      I got a new computer Saturday and had hoped to see a difference in encoding time, but thus far it appears to be about the same. Specs are: Windows 8.1 (64), 32GB RAM, i7 4770 @ 3.5Ghz, GeForce GTX760 (not CUDA supported), 120GB SSD for OS and Adobe, and Adobe CC 2014. I've got a 4 minute video that I shot in 29.97fps 1080p and am exporting to same. Only effects are Warp Stabilizer and a couple Lumetri Looks effects. All have been rendered. AME 2014 took approximately 45 minutes to export. I checked the memory settings, and 27GB of the 32GB is usable by Premiere, AME, etc, and has been optimized for performance. My old computer had CUDA support, and this one doesn't - is this the major difference? However, render time in Premiere is significantly faster. Do I have some settings wrong that are slowing down export speed?

        • 1. Re: New computer - slow encoding!
          SAFEHARBOR11 Community Member

          With CS6, there was a workaround to get Premiere to use the GTX cards for hardware acceleration. My understanding was that CC would automatically use capable cards...maybe you still need to modify the supported cards text file?

           

          But anyway, Warp Stabilizer takes forever to render, and color looks plug-ins are also known to take a while. If you want to do any type of benchmark between the old and new computer, encode a raw clip without the effects. It should really be realtime or faster to encode a clip to H.264 on that machine.

           

          Thanks

           

          Jeff Pulera

          Safe Harbor Computers

          • 2. Re: New computer - slow encoding!
            mikec82 Community Member

            Once I made changes to the Premiere and AME supported_cuda_cards.txt files, it was exporting basically in real time. Major difference! Plus now I don't have to render all my warp stabilizer or lumetri shots. I'm definitely feeling relieved - thanks!

            • 3. Re: New computer - slow encoding!
              SAFEHARBOR11 Community Member

              In re-reading your initial post, it seems that you had rendered the timeline (red to green), is that correct? But since the export in AME still took 45 minutes, can I assume that you did not check "Use Previews" in AME? Seems that maybe everything has to render again at export?


              This link has some good info about rendering in Premiere - http://blogs.adobe.com/premierepro/2011/02/red-yellow-and-green-render-bars.html

               

              Basically, even if you have red bars above segments in your Premiere sequence, there is no requirement to render those areas. If playback is smooth enough for you to see what you're doing, then don't worry about it, leave it red. When you export in AME, everything gets rendered at that point, and from the original source clip, for best results. If you render the timeline to green, that creates new clips behind the scenes, and if you then check "Use Previews" in AME, it re-renders those temporary rendered clips to the desired final format. So you now have a "copy of a copy", so you are losing some quality with that method.

               

              Hope this helps with the workflow

               

              Thanks

               

              Jeff Pulera

              Safe Harbor Computers