I recently upgraded to mavericks and am greatly concerned by the new memory allocation and its impact on my AE workflow.
I work a lot with compositions that involve numerous (as in 100+) copies of the same source video that have been offset in time from each other. This is usually a nightmare for AE and requires some very delicate balancing of RAM and CPU resources. For example a comp with 128 layers will take 10mins to render with 4GB per process but will take 9 hours with 3GB per process... or vice versa a 50 layer comp will take 10 mins but only 5 more layers will take 3 hours... I'm used to this and have spent a long time working out how best to optimise render times.
In steps Mavericks with its fancy memory management and suddenly it all goes to s#!t. Multiprocessing throws up those odd 'could not find itemframe' errors so I kiss goodbye to my MP but then ben SP with 24GB allocated is wigging out. First couple of comps are fine, 15min, then 17 min, the 24, then 5 and half hours !
it's driving me nuts. the only thing I can think of (bar going back to 10.8) is a render script that includes a RAM purge between each comp in the queue, though i'm not even sure that's possible.
any solutions or suggestions greatly appreciated.
(I should mention this is on a Mac Pro, 2x 3.33GHz, 32GB RAM, ProAvio Raid)
totally forgot to mention, this is also CS6, I downloaded the CC trial to see if that played better with Mavericks but exactly the same issue... argh...
Did you update CS6 to take advantage of the modifications made to run better on Mavericks?