nanog mailing list archives

Re: latency (was: RE: cooling door)


From: "Steven M. Bellovin" <smb () cs columbia edu>
Date: Sun, 30 Mar 2008 21:25:40 +0000


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


gtb () 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


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