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SubjectRe: [Question] Explanation of zero-copy networking
On Mon, 7 May 2001, Richard B. Johnson wrote:

> when the hardware I/O is used. This shows that the network code, alone,
> cannot be improved very much to provide an improvement in throughput.

doesn't your analysis assume that we've got nothing else interesting to do
while doing the network i/o? for example, i may want to do something else
which needs the memory bandwidth i'd otherwise spend on a single-copy...

-dean

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