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    SubjectRe: why swap at all?
    > > However, if 57 Mb of swap allows this, 57 Mb of extra physical RAM should also
    > > also allow the grep to be cached, without having to swap out anything.
    > >
    >
    > Well yes, but if I had another 57MB of physical memory then I would
    > still turn on swap so that other 57MB of unused memory isn't wasted.

    Sure, but tell me, for example, what is the point of having swap on a system
    like this:

    $ free
    total used free shared buffers cached
    Mem: 516688 19900 496788 0 628 11276
    -/+ buffers/cache: 7996 508692
    Swap: 0 0 0

    John.
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