Re: swap

[Douglas Allan Tutty <dtutty@porchlight.ca>]

On Mon, May 07, 2007 at 11:55:56AM -0400, Greg Folkert wrote:
> I've part-time admin'd (contracted) a couple of systems that required
> 128GB of swap during batch processing "middle of the night" setups.
> Primarily because of the inner looping of some of the jobs and the
> amount of "stored" info hanging in memory. Rather than fix the batch
> processing system, which came from an AS400 (which originally was on an
> IBM 36 system), the company suggested swap as a workaround.

How much memory and swap did the program have to play with on an AS400
or 36?

To generalize the problem, given that the software can't be changed, at
what point do you start to look at either a bigger single computer or a
cluster that looks like a bigger computer?  For me its just an
intelectual exercise; I went from a 486 with 32 MB swap to an Athlon
with 1GB in a single bound.  That Xorg makes _that_ swap really burns me
up.

Doug.