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How can I reuse physical memory in the absence of swapping?

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Sorry - what do you mean by reuse? Writting dirty cache? Using sharing memory? Deallocating/reallocating physical space? – Maciej Piechotka Jan 3 '11 at 14:41
I think I am meant to say De-allocating/reallocating physical space. – Sen Jan 3 '11 at 14:47

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Just don't ? Let the kernel do its job, it knows better ?

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