[clug] to swap or not to swap that is the question -- different follow up Q.

Brett Worth brett at worth.id.au
Tue Jun 29 21:53:19 GMT 2004

On Tue, 29 Jun 2004, Richard Reynolds wrote:

> > Do you mean using RAM to pretend to be a disk to pretend to be RAM.
> > Doesn't sound right to me, though I did see this mentioned in a thread
> > on this on alt.os.linux long ago, and no-one shot the poster down in
> > flames.

On a Cray SV1EX system it does make sense.  It was based on the YMP
architecture which had been around for a long time and could only 
address 32GB of RAM.

The last version of the memory modules could take it upto 128GB so the
last 96GB is only available as solid state disk, disk buffer or swap.  
It can run at 80GB/sec memory to memory so it made swapping reasonable.


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