Date: Fri, 25 Mar 2005 15:35:58 +0000 From: David Malone <dwmalone@maths.tcd.ie> To: "David G. Lawrence" <dg@dglawrence.com> Cc: freebsd-bugs@freebsd.org Subject: Re: broken bandwidth-delay product window limiting Message-ID: <20050325153558.GA22521@walton.maths.tcd.ie> In-Reply-To: <20050325152910.GC905@opteron.dglawrence.com> References: <20050325152910.GC905@opteron.dglawrence.com>
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On Fri, Mar 25, 2005 at 07:29:10AM -0800, David G. Lawrence wrote: > The "bandwidth-delay product window limiting" code in 5.x appears to be > quite broken. In my tests here, the window is hard limited to 2 segments, > regardless of the actual bandwidth-delay product, and this results in very > poor performance over non-local TCP connections. I'd suggest shipping 5.4 > and future releases with net.inet.tcp.inflight.enable=0 until this problem > can be fixed. Have you seen: http://www.FreeBSD.org/cgi/query-pr.cgi?pr=75122 I wonder if it is the same bug or a different one? David.
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