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AE CS3 doesn’t see 8GB of RAM…
Hi!
When I launch AE CS3 on my Mac at work (Dual Quad-core running Tiger), it says it’s using 5% of 3GB of RAM, even though I got 8GB installed. When I turn on the multiprocessing option everything seems to slow down (I’ve tried different RAM cache settings, but it doesn’t help)… Am I missing something?
Regards,
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3 Replies
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As has been explained many times here, most of the 8 GB (or 16 or even 24 GB if you had as much) are used by the AEselflink instances that are spawned when you enable simultaneous processing. If you go to the Mac OS Activity Monitor during an AE render or RAM preview, you’ll see that these background processes do take most of your memory.
As for it slowing down, most people find that it makes it way faster. The first time you invoke RAM preview on every session it does take some time to launch the AEselfLink instances, though.
Adolfo Rozenfeld
Buenos Aires – Argentina
ar(AT)adolforozenfeld.com -
Thank you for the quick reply. I could be that I was a bit impatient for the instances to start…
Cheers!
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Yea when you have multiprocessing turned on effectively a seperate instance of aftereffects is launched for each core when you render or ram preview – like having a render farm in one machine. I usually have multi processing turned off (8core mac pro, 9GB ram), because I find the delay when trying to preview is just too long (can take upto 10-15 seconds!) – also when coming out of the ram preview. I only turn on the option before big renders.
Another note, as tiger is NOT a 64bit OS, no single application can address more than 3GB of ram. Thats why when you launch aftereffects it says its using only 5% of 3GB, and not 5% of 8GB, it cannot see all of the 8GB – and theres nothing to be done about that until leopard comes out.
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