Re: [UPDATE] Zerocopy patches, against 2.4.1-pre10

Mathieu Chouquet-Stringer (
24 Jan 2001 16:45:57 -0500 ("Jonathan Earle") writes:

> > I'm back from OZ, and to help deal with my sudden lack of Victoria
> > Bitter, I've made a new zerocopy patch set.
> What are "zerocopy patch set"s?

Basically, if you want to send something to the network, the kernel has to
copy your data to its memory space. It is an overhead and with these
patches, the kernel doesn't has to do it. So it is faster. Moreover, few
ethernet cards are able to compute the ip checksum so linux doesn't need
anymore to do that.

Mathieu CHOUQUET-STRINGER              E-Mail :
     Learning French is trivial: the word for horse is cheval, and
               everything else follows in the same way.
                        -- Alan J. Perlis
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