Subject: Re: But why?
To: Chris Torek <>
From: Perry E. Metzger <>
List: tech-kern
Date: 10/23/1996 21:50:23
Chris Torek writes:
> >Alan Cox just devised a way for Linux/SPARC to avoid packet copying on
> >our networking stack ...
> This is not a micro-optimization.

Not even remotely -- its the biggest optimization you can usually make.

> In particular, for applications that spend all their time sending
> bulk network data, eliminating these copies eliminates the place
> they spend most of their time -- a network send is, or should be,
> dominated by the time spent copying those bytes.

And how.