Date: Wed, 14 Aug 2013 19:27:15 +1000 From: Lawrence Stewart <lstewart@freebsd.org> To: "Eggert, Lars" <lars@netapp.com> Cc: Andre Oppermann <andre@freebsd.org>, "freebsd-net@freebsd.org" <net@freebsd.org> Subject: Re: TCP Initial Window 10 MFC Message-ID: <520B4D73.90408@freebsd.org> In-Reply-To: <918804B0-BED8-4E49-9D70-01DDA6F257B3@netapp.com> References: <201307051458.r65EwObo066269@svn.freebsd.org> <520AED2F.4050001@freebsd.org> <918804B0-BED8-4E49-9D70-01DDA6F257B3@netapp.com>
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Hi Lars, On 08/14/13 18:46, Eggert, Lars wrote: > Hi, > > On Aug 14, 2013, at 10:36, Lawrence Stewart <lstewart@freebsd.org> wrote: >> I don't think this change should have been MFCed, at least not in its >> current form. > > FYI, Google's own data as presented in the HTTPBIS working group of the recent Berlin IETF shows that 10 is too high for ~25% of their web connections: see slide 2 of http://www.ietf.org/proceedings/87/slides/slides-87-httpbis-5.pdf > > (That slide shows a CDF of CWND values the server used at the end of a web transaction.) Thanks for the pointer - very interesting. Do you recall if they said how many flows made up the CDF? Cheers, Lawrence
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