From owner-freebsd-current@FreeBSD.ORG Sun Dec 28 22:45:28 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F08D01065670; Sun, 28 Dec 2008 22:45:28 +0000 (UTC) (envelope-from qing.li@bluecoat.com) Received: from whisker.bluecoat.com (whisker.bluecoat.com [216.52.23.28]) by mx1.freebsd.org (Postfix) with ESMTP id BEF568FC18; Sun, 28 Dec 2008 22:45:28 +0000 (UTC) (envelope-from qing.li@bluecoat.com) Received: from bcs-mail03.internal.cacheflow.com ([10.2.2.95]) by whisker.bluecoat.com (8.14.2/8.14.2) with ESMTP id mBSMjSHG002201; Sun, 28 Dec 2008 14:45:28 -0800 (PST) Received: from 10.2.2.114 ([10.2.2.114]) by bcs-mail03.internal.cacheflow.com ([10.2.2.95]) with Microsoft Exchange Server HTTP-DAV ; Sun, 28 Dec 2008 22:45:22 +0000 MIME-Version: 1.0 Content-class: From: "Li, Qing" Message-ID: <031f01c9693d$f7f5a514$7202020a@internal.cacheflow.com> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Date: Sun, 28 Dec 2008 14:45:15 -0800 Importance: normal X-MimeOLE: Produced By Microsoft Exchange V6.5 Thread-Topic: Network slowdown on lo0 introduced with svn186119/186121 X-Priority: 3 Thread-Index: AclpPff1EfMKBTOGQmmrX4QiM7WKgQ== To: "Christian Gusenbauer" , "Kip Macy" Cc: qingli@freebsd.org, "Li, Qing" , freebsd-current@freebsd.org Subject: RE: Network slowdown on lo0 introduced with svn186119/186121 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Dec 2008 22:45:29 -0000 I'll investigate and get back to you ... -- Qing -----Original Message----- From: Christian Gusenbauer Sent: Sunday, December 28, 2008 2:04 PM To: Kip Macy Cc: Li, Qing ; freebsd-current@freebsd.org = ; qingli@freebsd.org Subject: Re: Network slowdown on lo0 introduced with svn186119/186121 Hi Kip! Hmmm, I thought amanda is using a localhost connection? But you're = right. If I=20 test connections using the 'discard' or 'echo' service with the IP = address of=20 my lan interface, I get this terrible throughput, too. Using the = localhost=20 address the throughput is *much* better! Thanks, Christian. On Sunday 28 December 2008, Kip Macy wrote: > This problem can reproduced with netperf. 127.0.0.1 will give good > throughput, but using the IP address of one of the interfaces gives > terrible throughput. > > -Kip > > On Sun, Dec 28, 2008 at 12:50 PM, Li, Qing = wrote: > > Hi Christian, > > > > Is the loopback address or an address that is assigned to > > an interface used by amanda? Would it be possible for you > > to give me some information on the tests you performed and > > on your method of measurement? > > > > Thanks, > > > > -- Qing > > > > ________________________________ > > > > From: owner-freebsd-current@freebsd.org on behalf of Christian = Gusenbauer > > Sent: Sun 12/28/2008 9:56 AM > > To: freebsd-current@freebsd.org > > Subject: Network slowdown on lo0 introduced with svn186119/186121 > > > > > > > > Hi! > > > > Today I built a new kernel on current and experienced a massive = network > > slowdown on lo0 when doing a backup using amanda. I made some tests = and > > it seems that the commits 186119 and 186121 to the svn repository = are > > causing it. A kernel based on revision 186107 runs fine and all = kernels > > starting with revison 186119 do not. > > > > This slowdown seems to appear only on the loopback interface, not on = my > > lan interface. > > > > Is this a known issue? > > > > Regards, > > Christian. > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to > > "freebsd-current-unsubscribe@freebsd.org" > > > > > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to > > "freebsd-current-unsubscribe@freebsd.org"