I have Debian GNU/Linux on a boring 32 bit i386 machine. 
perl 5.8.8:
8000028
68000056
Vsize: 322.68 MiB ( 338354176)
RSS  : 79112 pages

perl 5.10.0:
8000036
84000100
Vsize: 270.80 MiB ( 283951104)
RSS  : 68365 pages

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In reply to Re^3: Tokenising a 10MB file trashes a 2GB machine by moritz
in thread Tokenising a 10MB file trashes a 2GB machine by PetaMem

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