From owner-freebsd-net@FreeBSD.ORG Thu Jul 21 18:07:47 2011 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 60C581065673 for ; Thu, 21 Jul 2011 18:07:47 +0000 (UTC) (envelope-from lacombar@gmail.com) Received: from mail-pv0-f182.google.com (mail-pv0-f182.google.com [74.125.83.182]) by mx1.freebsd.org (Postfix) with ESMTP id 39B3C8FC0C for ; Thu, 21 Jul 2011 18:07:46 +0000 (UTC) Received: by pvg11 with SMTP id 11so1752157pvg.13 for ; Thu, 21 Jul 2011 11:07:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=mDF4cZyBHRSj87O7C9B5pnJG2krN+FxAFOpjOg1e8Cs=; b=Egs+maasvxuunR3S42gW+GzjrIxH4A0/Pz5d/SmKJv0ThdliVDV1IJUneJ4e/s3mhz fAA+eP61psxiRKjX93t7AlBX9Jl27TvyVVIl4gU0YiotnBzqd3k4jeXti4iwPxSwaQvm E018Stfa4G5HvP+Xw7fMqyk0sRrC34HztUMZo= MIME-Version: 1.0 Received: by 10.68.26.196 with SMTP id n4mr684312pbg.75.1311271666371; Thu, 21 Jul 2011 11:07:46 -0700 (PDT) Received: by 10.68.56.8 with HTTP; Thu, 21 Jul 2011 11:07:46 -0700 (PDT) In-Reply-To: <54AEE240C5F8411A9D4274605DBD14BC@multiplay.co.uk> References: <201107201550.p6KFo9rH032569@freefall.freebsd.org> <54AEE240C5F8411A9D4274605DBD14BC@multiplay.co.uk> Date: Thu, 21 Jul 2011 14:07:46 -0400 Message-ID: From: Arnaud Lacombe To: Steven Hartland Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-net@freebsd.org, "Michael W. Lucas" Subject: Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2011 18:07:47 -0000 Hi, On Wed, Jul 20, 2011 at 12:07 PM, Steven Hartland wrote: > We're seeing tcp stalls under igb under 8.2-RELEASE and 8-STABLE (which > shares > some code with em) and the workaround for use is currently adding the > following > to /boot/loader.conf > hw.igb.enable_msix=3D0 > > Might be worth trying that. > Unless error of my part, you were pointed out in [0] that you had TCP retransmission issue and you never follow-up that mail. - Arnaud [0]: http://www.mail-archive.com/freebsd-net@freebsd.org/msg37292.html > =A0 Regards > =A0 Steve > > ----- Original Message ----- From: "Michael W. Lucas" > > To: > Sent: Wednesday, July 20, 2011 4:50 PM > Subject: Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE > > >> The following reply was made to PR kern/152828; it has been noted by >> GNATS. >> >> From: "Michael W. Lucas" >> To: bug-followup@FreeBSD.org >> Cc: rick@sloservers.com >> Subject: Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE >> Date: Wed, 20 Jul 2011 11:49:08 -0400 >> >> I'm seeing the exact same problem here as the original poster. Is >> anybody looking at this? >> >> Running FreeBSD 8.2-RELEASE-p1 amd64, from FreeNAS 8.0 >> >> sysctls: >> dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.1.9 >> dev.em.0.%driver: em >> dev.em.0.%location: slot=3D0 function=3D0 >> dev.em.0.%pnpinfo: vendor=3D0x8086 device=3D0x108b subvendor=3D0x8086 >> subdevice=3D0x0000 class=3D0x020000 >> dev.em.0.%parent: pci1 >> dev.em.0.nvm: -1 >> dev.em.0.debug: -1 >> ... >> >> ifconfig: >> em0: flags=3D8843 metric 0 mtu 1= 500 >> >> =A0options=3D219b >> =A0 =A0 =A0 =A0ether 00:15:17:31:c8:fe >> =A0 =A0 =A0 =A0inet 139.171.199.13 netmask 0xffffff00 broadcast 139.171.= 199.255 >> =A0 =A0 =A0 =A0media: Ethernet autoselect (1000baseT ) >> =A0 =A0 =A0 =A0status: active >> >> dmesg | grep em0 >> em0: port 0xbc00-0xbc1f mem >> 0xff6e0000-0xff6fffff irq 16 at device 0.0 on pci1 >> em0: Using an MSI interrupt >> em0: [FILTER] >> em0: Ethernet address: 00:15:17:31:c8:fe >> >> >> >> >> -- >> Michael W. Lucas http://www.MichaelWLucas.com/, >> http://blather.MichaelWLucas.com/ >> Latest book: Network Flow Analysis http://www.networkflowanalysis.com/ >> mwlucas@BlackHelicopters.org, Twitter @mwlauthor >> _______________________________________________ >> freebsd-net@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-net >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >> > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > This e.mail is private and confidential between Multiplay (UK) Ltd. and t= he > person or entity to whom it is addressed. In the event of misdirection, t= he > recipient is prohibited from using, copying, printing or otherwise > disseminating it or any information contained in it. > In the event of misdirection, illegible or incomplete transmission please > telephone +44 845 868 1337 > or return the E.mail to postmaster@multiplay.co.uk. > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >