Re: [UPDATE] Fresh zerocopy patch on kernel.org

[David S. Miller]

Malcolm Beattie writes:
 > David S. Miller writes:
 > > 
 > > At the usual place:
 > > 
 > > ftp://ftp.kernel.org/pub/linux/kernel/people/davem/zerocopy-2.4.1-1.diff.gz
 > 
 > Hmm, disappointing results here; maybe I've missed something.

As discussed elsewhere there is a %10 to %15 performance hit for
normal write()'s done with the new code.

If you do your testing using sendfile() as the data source, you'll
results ought to be wildly different and more encouraging.

Later,
David S. Miller
[e-mail]