latency (was: RE: cooling door)

Sun Mar 30 21:25:40 UTC 2008

On 30 Mar 2008 21:00:25 +0000
Paul Vixie <vixie at isc.org> wrote:

> 
> gtb at slac.stanford.edu ("Buhrmaster, Gary") writes:
> 
> > > ... feed "tcp throughput equation" into your favorite search
> > > engine for a lot more references.=20
> > 
> > There has been a lot of work in some OS stacks
> > (Vista and recent linux kernels) to enable TCP
> > auto-tuning (of one form or another), ...
> 
> on
> <http://www.onlamp.com/pub/a/bsd/2008/02/26/whats-new-in-freebsd-70.html>
> i'd read that freebsd 7 also has some tcp auto tuning logic.

There are certain things that the stack can do, like auto-adjusting the
window size, tuning retransmission intervals, etc.  But other problem
are at the application layer, as you noted a few posts ago.

		--Steve Bellovin, http://www.cs.columbia.edu/~smb