Date: Wed, 21 Apr 1999 22:03:40 -0700 From: David Greenman <dg@root.com> To: Alex Rousskov <rousskov@ircache.net> Cc: freebsd-net@FreeBSD.ORG Subject: Re: _Some_ acks delayed for 200 msec? Message-ID: <199904220503.WAA16761@implode.root.com> In-Reply-To: Your message of "Wed, 21 Apr 1999 21:05:15 MDT." <Pine.SGI.4.10.9904211955350.6184-100000@Meta-Bug>
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>Now, if that is the infamous delayed ack problem, then > - why only *some* acks are delayed? Probably because of timing of the response packets. It's impossible to say with your limited, one-sided tcpdump. > - why Nagle-like optimization is used on a switched (no routing) > network? The Nagle algorithm doesn't know or care about "local" networks. > - why disabling Nagle (TCP_NODELAY) does not help? It will likely have to be disabled on both sides for your application since there appears to be a syncronous request/response involved. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project - http://www.freebsd.org Creator of high-performance Internet servers - http://www.terasolutions.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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