3 Replies Latest reply on Feb 28, 2013 12:40 PM by mgongea

    Large Premiere Pro CS6 Project running very slowly


      Hi there folks. I'm about to ask a question to which I'm fairly certain the answer is "You need to upgrade your RAM and Video Card." But I thought I'd toss the question out to Adobeland just for the slightest, minesculest chance there might be a software fix.


      Basically, I have a huge project for this promo. About 4TB worth of footage all in all. Almost all of it is PRORES 4444 from an Alexa (which runs like a charm) but there's also a great deal of full hd XDCAM transcodes of several of a networks full feature films (They're about 80GB each).


      These films are killing my project. I can't even watch them for more than a few seconds without Premiere just stalling out, that's fine, I can cope with that. But apparently just having them in the project is enough to slow the whole thing down even when I'm only using a few clips on my 60" timeline. It takes 45 minutes for the project to fully load up, and I'm constantly clearing the cache.


      I'm running a Mac Pro (Mid 2010) 2 x 2.4Ghz Quad-core Intel Xeon, 12 GB 1066 Mhz DDR3, ATI Radeon HD 5770 1024MB using OSX Lion 10.7.5....


      If there's any little software tweaks or fixes that can speed up Premiere.


      PS - I've tried using project manager to create a new trimmed project with handles, but for some reason this never works for me. It just makes copies of the entire original clips without trimming them. I've also tried transcoding the Larger files to smaller versions, but this process is taking way too long and keeps crashing


      Any advice would be greatly appreciated.


      Much Love



        • 1. Re: Large Premiere Pro CS6 Project running very slowly
          mgongea Level 1

          Hi Martin,


          Just few thoughts on my end, maybe someone more experienced, hardware wise, will give more info...


          Both Program and Source panel have the option to reduce the playback quality, and this helps when playing big media - in the lower right corner, left from the timecode, there is a pop-up menu where you can choose from Full to 1/16 playback quality. This change affects only the playback, not the quality of the media. Also, you can right-click on the Program or Source panel and change Playback Resolution and Paused Resolution. I would stay the playback at the most convenient speed, and switch back an forth the Paused Resolution, as needed.


          Don't delete the cache Premiere does, these are files that are actually speeding up the process.


          Hope this helps.




          • 2. Re: Large Premiere Pro CS6 Project running very slowly
            Martin.Hickford85 Level 1

            Hey Mark,


            Cheers for the reply. I did try lowering it to 1/2 res but, when I didn't notice any massive change I just assumed that it didn't make a differennce. Since reading your comment though I've gone down to 1/4 res which does seem a little bit healthier (for some reason though, everything below 1/4 is greyed out) but still - any improvement is a great help, so thanks for that.


            Regarding the cache, I'm a little confused as to how this all works. In After Effects, when it gets full I have to clear it otherwise it can't render, I just assumed the same was true for Premiere. Wierdly enough, when I use the Premiere Preference to clear the cache, it still leaves about 20GB of files in the folder. I'll hold out on clearing it though if that's causing problems.


            Thanks again for your help, much appreciated.



            • 3. Re: Large Premiere Pro CS6 Project running very slowly
              mgongea Level 1

              In After Effects you 'purge' the cache to free up RAM, in order to preview other compositions. In Premiere, it is a bit different, because this program works with different cache files and different ways of storing them. There are files used for previews/renders, created by the user - and files for caching information about media used in the project (metadata, waveforms etc.), created by Premiere. The only ones you can delete are the render files, found in Adobe Premiere Pro Preview Files (if you don't need them at one point; they can be easily recreated by rendering again). All the others (the ones you say that you delete through 'Preferences') need to be kept, because Premiere works with them. I assume this is the reason it takes that long when opening the project, because Premiere needs to re-cache everytime. Don't delete them and see how it goes.


              Just as a reference point for you: I have a powerful computer (dual Xeon, dual nVidia, 64GB RAM), and I still have to decrease the playback quality sometimes to 1/2. The lowest I can go is 1/4, and I assume your Premiere allows decreasing at least to 1/8, with the rest of values grayed/unselectable.


              I think you need a better graphic card first, one that is accepted by Premiere, for its CUDA capabilities. Check their website, I think your Radeon is not allowing the use of Mercury Playback.