[geeks] Swap Memory..

Bjorn Ramqvist brt at g.haggve.se
Mon Oct 21 03:24:46 CDT 2002


Dave McGuire wrote:
> 
> > The "swap = 2x physical RAM" is a holdover from the "old days" when
> > disk
> > was cheaper than memory.
> 
>    It's also a holdover from a SunOS4 kernel limitation that prevented
> the use of main memory that wasn't "backed" by swap space...i.e., if
> you had 16MB of physical memory but only 8MB of swap space, you could
> only use 8MB of physical memory.

Man, I've had this discussion with some HP-techsupport when I got some
bizarre memory-issues on one of our HP9000-systems. Heh. Same thing
there, you can't use memory (for non-kernel procs) more than you have
swapspace backup up for. That SUCKS.

/Bjorn



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