Paging/Swapping

Paul Davey pd at x.co.uk
Fri Jun 28 20:47:22 AEST 1991


>>>>> On 26 Jun 91 08:46:54 GMT, israel at saturn.informatik.tu-chemnitz.de (Andreas Israel) said:

Andreas> Now my question: If you have a computer with, for instance 48 MByte RAM,
Andreas> what amount of swap space is needed? Is any swap space size less than
Andreas> 48 MByte of much use (or of none, if the formula above is still right).

Andreas> Any ideas how the amount of swap space should be computed and how
Andreas> UNIX kernels compute upper limits (esp. for HP-UX and SunOS)

I can't help with the kernal computations but you should have more
swap than physical RAM, normally a factor of 1.5 to 2 times, more if
you have memory heavy applications, eg lots of gnu-emacs's, CAD,
expert systems etc.



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