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Jenx memory usage is high #32
Jenx's VSZ immediately after startup is 11 GB ?!?!
The RSS is much more reasonable, but I can't imagine why the VSZ is so huge.
Hmmmm, I think this is actually an issue with how OS X reserves memory for 64 bit processes and how it reports it.
What this shows is a ridiculously simple Ruby program having a VSIZE of 10 GB.
OTOH, Activity Monitor shows up a much more sane "Virtual Mem" of 315.0 MB for this process: