Re: [PATCH] TCP Zero Copy for mmapped files

Alan Cox (alan@lxorguk.ukuu.org.uk)
02 Jan 2003 23:20:44 +0000


On Thu, 2003-01-02 at 22:28, Larry McVoy wrote:
> The VM cost hurts. Badly. Imagine that the network costs ZERO. Then
> the map/unmap/vm ops become the dominating term. That's why it is a
> fruitless approach, it still has a practical limit which is too low.

It depends how predictable your content is. With a 64bit box and a porn
server its probably quite tidy

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