How do i turn off virtual mem in os x??

Not sure, given that the dynamic pager pays no attention, nor does the kernel to the swaptab :-/

Someone else pointed out that the libraries/kernel lacks the actual
functions that enable swap in kernel space, as opposed to a user space application like dynamic_pager. As such, swaptab is useless, and so are the related swap commands.

Performance wise, it can only make sense that it would be faster to NOT compress the data stored on disk.. disk is slow compared to RAM, but is cheap and plentiful, so why worry about using some disk up, and compressing things, which just leads to compress/decompression delays as you page in and out.. Chew through some disk, no one cares.

-Andrew
 
EVERYONE: what about ramBunctious? If you have enough physical RAM so that your machine only makes one swapfile (I Photoshop a LOT and get there with *only* 1GB), wouldn't it make sense to put the UNIX swapfile, as well as other things like Mozilla cache and all of SETI, on a RAM disk?
 
No, you wouldn't want to do that.
Keep the caches and virtual memory systems widely separated. Put the Photoshop VM on separate scratch disks/partitions than the system swap files. Both like wide open HD space, but the system is more graceful with its 80MB page files, compared to Photoshop's gargantuan 3x the image file size's scratch files.
 
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