3 Replies Latest reply on Nov 14, 2012 3:23 AM by Harm Millaard

    CS6 CPU Usage 100% after upgrading from CS5.5


      After installing a GTX 570 a while back, my CPU went from pegging out at 100% down to about 48% when rendering or exporting.  I just upgraded from Premiere 5.5 to 6.  Now it's back to pegging out at 100% again.  Something is going on.  Looking at my MSI Afterburner, my GPU is running between 1% and 7% usage.  As a result my CPU is having to do all of the work.  What's up with that?  Is there a setting that I am missing?  The Mercury Playback Engine is enabled.  It's like it's not taking full advantage of my Cuda Cores on the video card.

        • 1. Re: CS6 CPU Usage 100% after upgrading from CS5.5
          Harm Millaard Level 7

          Just a few basic questions:


          • What hardware
          • What software
          • What codec
          • What project seetings
          • What OS
          • What are you doing
          • How did you measure
          • What drivers
          • What tuning was applied
          • What services are running
          • What processes are running
          • Any third party cards installed
          • etc.


          Once you have answered these, maybe we can give you some hints.

          • 2. Re: CS6 CPU Usage 100% after upgrading from CS5.5
            Joe.York Level 1

            Windows 7 Enterprise Service Pack 1

            Intel(R) Core(TM) i7-2600 CPU @ 3.4GHz

            8 GB RAM

            64-Bit OS

            Adobe Creative Cloud 6.03

            Using Adobe Premiere Pro

            h.264 Codec

            Drivers for Nvidia GeForce GTX 570 Version

            Same PC runnuing the same harware.  Only difference is upgraded from Master Collection Suite CS5.5 to Creative Cloud 6.

            Mercury Playback Engine GPU Acceleration (CUDA) enabled.

            Exporting to H.264, Vimeo HD 720p 29.97

            Render at Maximum Depth un checked.

            I have changed the Memory from Performance to Memory and that reduced my CPU usage but the GPU did not increase.

            • 3. Re: CS6 CPU Usage 100% after upgrading from CS5.5
              Harm Millaard Level 7

              Keep memory to Performance.


              The GPU only comes into play during exporting when there is scaling, blending, blurring, etc. going on. The major role is CPU based. Seeing 100% CPU load should make you happy, because it means that your disk setup is not a bottleneck.


              What is going on? Well, from my understanding the memory management between CS5/5.5 and CS6 has changed significantly, by using interprocess memory in a completely different way. Changing memory from Performance to Memory priority changes the use of interprocess memory and that has negative effects on performance with H.264 material.


              This is only my interpretation of what is going on and I may be mistaken, so Adobe, please correct me if I'm wrong.