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SubjectRe: zero-copy TCP
On Mon, 4 Sep 2000, Linus Torvalds wrote:

> On Mon, 4 Sep 2000, Jamie Lokier wrote:
>
> > Linus Torvalds wrote:
> >
> > > Basically any copy <= 4 cache lines is "free" compared to trying to be
> > > clever.
> >
> > We're obviously interested in larger packets than 128 bytes.
>
> "obviously"?
>
> Take a look at some common traffic. Yes, even in servers.
>
> Small packets are not unlikely.

if you want some examples of this look at mail servers: SMTP, POP, and
IMAP are all "chatty" and involve a high fraction of tiny messages. DNS
probably fits the bill too.

-dean

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