Tom Davies wrote:
Apparently the 4Gb Ram limit is a limit of the OS, not the apps. If the OS can read/write to
more ram then i don't think the apps would be restricted. Apparently OSes that are 32bit
could read more Ram with a different kernel module. With Gnu&Linux it's possible to
swap-in the different module and i kept being told that "it's really easy".
Something like the pae-something module.
With PAE, the 32 bit CPU can access more that 4 GB, but Microsoft still
limits Windows to 4 GB. With Linux, no there is no such artificial
limitation. IIRC, applications are still limited to 4 GB, as they don't
know how to access more, but the OS can use the greater space and make
it available to the apps. With Linux, recently used stuff is retained
in memory, so that accessing it again is quick. It will eventually be
moved to swap, if not recently used. So, with Linux, the more memory
available, including beyond 4 GB, the faster the system in general runs.
https://en.wikipedia.org/wiki/Physical_Address_Extension
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