Linked by Thom Holwerda on Wed 5th Jan 2011 22:09 UTC
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Member since:
2010-03-08
PAE allows you to have more than 4 GB of addressable physical memory, but you can only map them in a 32-bit address space*. A single process thus still cannot hold more than 4 GB of data easily.
PAE is just fine for running lots of small processes on a big machine, as an example if you're running lots of small virtual machines on a server. But for the power-hungry desktop user who wants to crunch terabytes of data in some video editing software, on the other hand, I don't think it'll ever be that useful. Except if we start coding multi-process video editing software, but since developers already have issues with multiple threads I don't see this happening soon...
* AMD64 Vol2, r3.15 (11/2009), p120
Edited 2011-01-06 13:16 UTC