Note that if you have plenty of RAM, having no swap is not a problem at
all. I should have made that clear. It is only when you're starting to
press the machine a bit that it starts being beneficial to have swap.
One easy way to determine this is to just temporarily create a small
swapfile, and enabling it. If it doesn't really get used (maybe just a few
hundred kB or so actually ever used in normal operation), there's no point
in having it, and you have "plenty RAM" for what you are doing.
And finally, Linux _will_ work without swap even if you'd need it a bit,
it just won't be as efficient as it should be.
Linus
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