Re: swap size
Quoting Greg Baker (ggbaker@cs.sfu.ca):
> The magic amount of swap is the totaly memory you ever expect to need,
> minus the amount of physical RAM you have. That's it, really. These
> 1xRAM, 2xRAM, etc. rules are just vague hand-wavey guidelines. Just
> guess how much memory you might need and subtract 1G (in your case).
I agree. I get the impression that the rule Swap = N * Physical RAM
dates from the time when men were men, swapfiles were swapfiles,
and systems actually swapped. Linux, as far as I am aware, has never
swapped, only paged.
> Note: some systems mirror the physical RAM in swap, so having less swap
> than RAM is meaningless and having the same amount is pointless. Linux
> doesn't do that, so the amount of swap you allocate is added to your
> total RAM available.
Yes, the rule for MacOS Virtual Memory is physical memory + 1MB.
Cheers,
--
Email: d.wright@open.ac.uk Tel: +44 1908 653 739 Fax: +44 1908 655 151
Snail: David Wright, Earth Science Dept., Milton Keynes, England, MK7 6AA
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official stationery. Views expressed here are either my own or plagiarised.
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