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quote: "this number should *almost always* be small". "case by case" basis. What use case have you have this 4GB calloc requirement?

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Hi, I think I'm agreeing with the OP, or perhaps with other past posts from OP, that with more swap free the calloc(4GB) should be ok. If available mem is clean bufpages would those be let go to make room for the calloc ?

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