Max size of swapspace - 2GB?

James Knott james.knott-bJEeYj9oJeDQT0dZR+AlfA at public.gmane.org
Tue Aug 23 01:30:09 UTC 2005


Fraser Campbell wrote:
> Hi,
> 
> I have been creating >2GB swapspaces for quite a while.  Recently I read
> the manpage:
> 
>     The maximum useful size of a swap area now depends on the
>     architecture.  It is roughly  2GiB on  i386,  PPC,  m68k, ARM, 1GiB
>     on sparc, 512MiB on mips, 128GiB on alpha and 3TiB on sparc64.
> 
> As a test I just created a 3GB swapspace (single logical volume) and
> then had a few programs suck up all the RAM.  I saw 3GB of real RAM used
> and 3GB of swapspace used before the server ran out of memory.
> 
> Based on my test I assume that the manpage is just out of date, or am I
> missing something?  My test was with 2.6.5 kernel (SuSE 9).

It might be the the info is out of data, as I seem to recall some
changes in that area not that long ago.
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