Show us a screenshot of your Memory & Multiprocessing preferences.
What other applications do you have running that may be taking up a lot of RAM (web browsers, Photoshop, etc.)?
Thanks for the reply!
As you requested:
Usually I do have some Apps running like Chrome, Apple Mails etc. But it also tried just having AE open and nothing else, which did not help. I do take care that my computer does not use swap, because I know about the bad influence to the performance of swap beeing used. As mentioned in my first post I also tried switching off disk cache which did not help, although the screenshot shows it switched on.
This is not that much about improving the overall performance, which is just fine – I would like it to stop 'forgetting' the already rendered frames...
Here another observation: when I start a preview render and then switch to another program, so that it renders in the background, the preview is also out of cache when I switch back to AE after it finished the render. Although it tells its finished (icon bumping around) then I have to render again.
Take a look at cpu's used for other applications. It's 0. You have to change that. Make sure that you have at least 1 CPU's for other applications. Try and increase the total CPU's actually used to an even number.
Also, try turning off MP rendering. While it's better than it was there are still too many problems with plug-ins and cacheing for my taste. It also does not seem to speed up things much on most of my projects.
Try rendering in the background to disk cache when you are working. When I have disk cache turned on I usually work that way.
To tell you the truth, most of the time I do not have disk cache turned on and most of the time I do not have MP turned on. AE seems more responsive for the kind of Projects that I do without these features turned on.
There are some cases where MP will help me. I know exactly when that is. MP does not help at all if you are using Ray-traced rendering. I also very seldom ram preview with all effects, motion blur, and full quality. I just don't have the time. I use ram preview to test motion and timing only, confirm the look with everything turned on for a few key frames, and then render. I've been doing this for so long that I know what things are going to look like and don't have the time to preview them. I'd suggest that you start working that philosophy into your workflow. You'll make more money and get more done in a day.
Thanks for that reply! Any thanks for the insights in your workflow, I am always curios how people master that stuff. Its just that in the project I am working in the moment I notice a dramatic increased performance using MP and was kind of dissappointed when it just stopped working at some point. I was hoping to save time in the bottom line solving the whatever problem this is (too late now, still I want to have it solved). It bothers me that it's not working and just feels wrong how it behaves...
Now to the specific problem:
Well, first I thought "cpu's used for other applications: 0" would not have that much effects, since its just using 3 CPU anyway because of ram limitations. But ok, changed it to 4 and the memory per CPU to 1, so its using four CPU's; an even number, did not change anything.
I do not use any plugins . Or let's say: not that I know. I use AE of the box and freshly (2 weeks ago) installed.
Yes, MP turned off is the way I am working right now but I did not really consider this a resolution. I am also aware of the fact that MP is not faster in all scenarios, but is in mine now. And yes, I also read that MP causes problem sometimes, but I rarely read about unsolvable ones. Why support it in the first place if it would be so? I wouldnt understand if there are usefull features implemented in expensive software my company payed for that are broken, thats all . Or, if there's a bug I would like to help to solve it so it gets more usable.
Again, thanks in advance for further help, looking forward to find the solution!
My Animations are simple solids moving around and PSD images which I pre-compose. If I turn off MP render and turn off Disk Cache will it affect anything?
TDRonline, first of all make sure your AE is up to date. Second, Turning off disk cache will disable rendering in the background and may slow down some workflow's but it will also solve the problem of random frames hanging on when you render. This is improved with the latest update.
Turning off MP may or may not slow down your ram previews or renders. If you are having very slow renders and MP is turned on the first thing to do is to try turning it off. Render multiple frames simultaneously will not work if you are using AE's Ray-traced rendering or if you are using any temporal effects that must process a frame at a time. Unless I specifically know that my project will render faster with MP turned on I keep it off. This means it's off 90% of the time.
This helped a whole lot, now I'm not having random lag when rendering. Seems to have done the trick.
So, that does not help in my case at all and TDRonline's problem also does not seem to be connected to my problem. Why not open another question for another problem?
Any ideas for my original problem? Is it a bug that should be reported? Did it occur to anyone else? Any strategies to avoid it?
Thanks in advance!
I was having this issue, and I seem to have fixed it by emptying both the CC disk cache data and my AE CS6 data. Hope this helps.
I also had the exact same problem, but emptying both the CC disk Cache and (in my case) the CS5.5 one, and restarting AE CC solved it.
I don't know for how long, but for now it works.
So thanks to ekreidler !
Well, sorry to report that it didn't last long.
It worked fine for about 20mn, and then the problem started again, only differently : Now when I stop a Ram preview playback, some frames stay cached (with the green bar), and others don't. It also seems completely random.
Also, during those 20mn, I stayed in the same comp, after rebooting, and without any other app running.
I'll have to revert to CS5.5 (in which Ram Preview works normally) as long as this issue isn't officially adressed.
Mac Pro 12-Core 2010 / 48Gb Ram / Mac Os 10.7.5
I have more details :
Actually, the frames that stay cached (with the green bar) after playback are not random at all : They're the frames I previewed while scrolling manually through the timeline. But all the other frames unread while scrolling lose the green bar once the preview playback is stopped.
Also, the problem only occurs when MP is turned on. With MP off, all the frames stay cached normally.
AE CS5.5, tested with the same project on the same machine, with the same MP prefs, doesn't have any problem, and keeps all the previewed frames cached after playback, just as it should.