Thanks for the reply. One of the machines has a Wacom tablet attached so I'll try removing that today. The other machine which has identical performance problems with CS4 doesn't have a Wacom tablet installed.
Both machines are also running Avid Media Composer and are located 20 metres away from their CPUs - so we have extenders for everything - mouse, keyboard and both monitors. Have you come across any issues here? (thinking about the UI / input devices here, as with the tablets).
The big change when you went from a 32 bit OS to a 64 bit OS is that After Effects can use more physical RAM.
1) Do you use multiprocessing (Turned on the Preference panel)?
2) Try changing the value of Preferences->Memory & Multiprocessing->RAM to leave for other applications to your amount of physical ram - 2GB. I think you said the machine has 6GB, so set that value to 4GB and see if it helps.
HI TODD & CHRIS, THANKS FOR THE INFO.
I HAVE PINCHED 6GB FROM THE OTHER MACHINE AND NOW HAVE 12 GB INSTALLED INTO 1 MACHINE. IT''S STARTING TO WARM UP...
2 THINGS I'VE NOTICED THAT I DON'T UNDERSTAND:
1. WATCHING THE MEMORY ALLOCATION IN THE TASK MANAGER WHILST CS4 IS DOING A RAM PREVIEW WITH SAY 4 PROCESSORS, THE RAM USED BY EACH PROCESSOR GROWS. THE TOP ONE IN THE LIST ALWAYS HAS USES THE MOST RAM AND THEN THE OTHERS LISTED BELOW ARE ABOUT THE SAME. THEY START OUT AT ABOUT 300,000KB EACH AND 'WIND UP' TO ROUGHLY WHAT I ALLOCATED, BUT THIS PROCESS TAKES AT LEAST HALF THE COMPOSITION TO GET THERE...AT WHICH TIME IT SLOWS RIGHT DOWN AGAIN.
THE SAME HAPPENS WHEN RENDERING. AS I TYPE I AM WATCHING 4 PROCESSORS RENDERING WITH 860,000KB ASSIGNED TO EACH, EVEN THOUGH I SET THE AMOUNTS TO 2.8GB IN THE MULTI PROCESSOR SETTINGS. THE RAM ALLOCATION IS SLOWLY GROWING FOR EACH, BUT THE WHOLE THING IS SO SLOW COMPARED TO CS3.
2. WHEN I HAVE MULTIPROCESSING TURNED OFF, THE MAXIMUM RAM ALLOCATED TO AE IS 2.4GB - EVEN THOUGH THERE'S 12GB AVAILABLE. CAN THIS BE CHANGED?
Please increase the amount of memory to leave for other applications to 2GB.
Hi Chris, I have done that but it's still the same.