From owner-freebsd-net@FreeBSD.ORG Wed Aug 14 08:46:44 2013 Return-Path: Delivered-To: net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 4C2B2C49; Wed, 14 Aug 2013 08:46:44 +0000 (UTC) (envelope-from lars@netapp.com) Received: from mx2.netapp.com (mx2.netapp.com [216.240.18.37]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 28D8D27E4; Wed, 14 Aug 2013 08:46:43 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.89,875,1367996400"; d="asc'?scan'208";a="38333413" Received: from vmwexceht03-prd.hq.netapp.com ([10.106.76.241]) by mx2-out.netapp.com with ESMTP; 14 Aug 2013 01:46:43 -0700 Received: from SACEXCMBX01-PRD.hq.netapp.com ([169.254.2.240]) by vmwexceht03-prd.hq.netapp.com ([10.106.76.241]) with mapi id 14.03.0123.003; Wed, 14 Aug 2013 01:46:43 -0700 From: "Eggert, Lars" To: Lawrence Stewart Subject: Re: TCP Initial Window 10 MFC (was: Re: svn commit: r252789 - stable/9/sys/netinet) Thread-Topic: TCP Initial Window 10 MFC (was: Re: svn commit: r252789 - stable/9/sys/netinet) Thread-Index: AQHOmJho/QNBxT9cUU6iUzIYTWLwbZmU2b+A Date: Wed, 14 Aug 2013 08:46:42 +0000 Message-ID: <918804B0-BED8-4E49-9D70-01DDA6F257B3@netapp.com> References: <201307051458.r65EwObo066269@svn.freebsd.org> <520AED2F.4050001@freebsd.org> In-Reply-To: <520AED2F.4050001@freebsd.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [10.104.60.115] Content-Type: multipart/signed; boundary="Apple-Mail=_B3745D06-2FF8-4084-97F8-CD8A376D9148"; protocol="application/pgp-signature"; micalg=pgp-sha1 MIME-Version: 1.0 Cc: Andre Oppermann , "freebsd-net@freebsd.org" X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Aug 2013 08:46:44 -0000 --Apple-Mail=_B3745D06-2FF8-4084-97F8-CD8A376D9148 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi, On Aug 14, 2013, at 10:36, Lawrence Stewart = 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.) Lars --Apple-Mail=_B3745D06-2FF8-4084-97F8-CD8A376D9148 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="signature.asc" Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQCVAwUBUgtD8tZcnpRveo1xAQLU+QP8ClvDtTvHbaxmGUVnGCy66QhS73GMJWDR R6JdOsSoYTcv4ce1pubms8Vd6DMg13YWIHuQkuUF7zzYxYEwBibIV5pGFpW5QGs5 wEELdDttxEADY+oEuCPVCqG4XD5cmsLIRNjiZgUSiHUcjvmhUX2g5Hpis7QvOhKv eJWof98+FkM= =Amuz -----END PGP SIGNATURE----- --Apple-Mail=_B3745D06-2FF8-4084-97F8-CD8A376D9148--