> The problem is not limited only to high b/w networks - it is also present in
> long latency paths (satellite links). Thus a server transferring a large file
> over a satellite link can spend lot of CPU due to the above problem.
> 
> Hope the problem shall be fixed in future releases,

Have you had a chance to look at Alfred Perlstein's patches for this?

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com