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I'm not surprised you're having problems. Those are some screwy settings! You have 24 gigs, you're reserving 3 gigs for other applications, but you're allocating all 24 cores to AE at 2 gigs/core! That's 48 gigs allocated vs. 24 gigs installed. See any problems with that?
Take a look at these recommended settings:
I think things will get better when you change your settings.
Thanks for helping me look into this Dave. You are right, the settings are screwy. We set them as such to match another machine in our studio that is functioning properly. I have reverted my multi-processing settings to reflect the aformentioned table, but the results are the same. I have included a video of what I am fighting.
That's weird. Do you have Open GL enabled for previews? Turn it off if you do.
Tried both on and off. Problem remains.
Try changing the multi processor settings in preferences.
What else is going on in the background? Are you cycling desktop backgrounds? If so, disable desktop cycling...it'll kill your RAM Preview performance. Also, are you previewing on your computer monitor only, or on an external as well?
I'm guessing the problem is with your Kona card. AJA has been having issues with CS5.5 and they just released updated drivers and have split the Adobe app plugins into their own installer now on the Windows side.
Unfortunately, you say you're already using the Kona 9.1 drivers so you're in the same boat as me with the poor playback in RAM previews.
Removing the Kona card instantly put my RAM previews back to normal, but it's not a proper solution.
Here are some tips I received from AJA support on this issue a few days ago:
OPTIMUM AE Settings for best performance:
- Make sure the AJA video preview setting matches the sequence.
- Use a RGBA video preview setting and not RGB 10-bit.
- In AE preferences -> video preview set Output Quality to Faster.
- Go to Project Settings -> set color settings -> depth and set to 8-bits per channel.
- Make sure you are viewing at 100% during playback.
I just put the Kona 3G card in last week and CS5.5 instantly had playback issues in both AE and Premiere. I got the 9.1 drivers AJA released this week and everything was fine after that! Halfway through a project yesterday, my RAM previews started lagging again. I'm working with AJA to resolve and if I get it figured out, I will post the solution here.
This probably isn't your issue, but I almost always get a RAM preview warning if I have "Compensate for Scene-referred profiles" activated and elements in the scene are tagged with a different color space than the project. It's accompanied by a warning that says "Note: project color working space is on." Your warning isn't saying that, though.
I'd like to know why AE can't do a realtime RAM preview with the Compensation activated. Kind of a PITA to keep turning it off and on. I pretty much just leave it off.
I'm using CS 5 on a Mac Pro.
Marshall Arts Motion Graphics
We have the same problem CS 5.5 with 32GB RAM 2 x 2,8 Ghz Quad-core, NVIDIA Quadro FX4800 1536 MB OSX Lion and a fiber connection to our SAN, but no way I can playback a 7s Full HD comp in realtime. Even in quater res I can't playback in realtime.
Our second and third station with same hardware configration except de NVIDIA Quadro FX4800 have the same problems with realtime RAM preview playback
Very frustrating I hope somebody has a solution. Please, please, please!!!
May we assume you've already taken the steps outlined above?
In my comparision of our suites here, we have identical setups except for the Kona cards. The sutie that does not have realtime RAM preview has a Kona LHe and the functioning suite has a Kona 3. In the "AJA preview menu", when video is un-checked and not playing out to the broadcast monitor, RAM preview is realtime.
Its a pain to make my clients come over to my machine and watch the computer monitor to approve animations, but at least I am able to get realtime RAM previews.
As annoying as this is, I can get by for now.