From owner-freebsd-i386@FreeBSD.ORG Wed Dec 9 09:00:08 2009 Return-Path: Delivered-To: freebsd-i386@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 016DF106568B for ; Wed, 9 Dec 2009 09:00:08 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D2C718FC12 for ; Wed, 9 Dec 2009 09:00:07 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id nB9907xH052580 for ; Wed, 9 Dec 2009 09:00:07 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id nB9907OD052579; Wed, 9 Dec 2009 09:00:07 GMT (envelope-from gnats) Resent-Date: Wed, 9 Dec 2009 09:00:07 GMT Resent-Message-Id: <200912090900.nB9907OD052579@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-i386@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Karl Hakkinen Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AEFF31065672 for ; Wed, 9 Dec 2009 08:53:16 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 9DEE68FC08 for ; Wed, 9 Dec 2009 08:53:16 +0000 (UTC) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id nB98rGcJ070441 for ; Wed, 9 Dec 2009 08:53:16 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id nB98rGAU070440; Wed, 9 Dec 2009 08:53:16 GMT (envelope-from nobody) Message-Id: <200912090853.nB98rGAU070440@www.freebsd.org> Date: Wed, 9 Dec 2009 08:53:16 GMT From: Karl Hakkinen To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: i386/141314: Network Performance has decreased by 30% X-BeenThere: freebsd-i386@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: I386-specific issues for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Dec 2009 09:00:08 -0000 >Number: 141314 >Category: i386 >Synopsis: Network Performance has decreased by 30% >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-i386 >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Dec 09 09:00:07 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Karl Hakkinen >Release: 8.0 >Organization: Nafet >Environment: FreeBSD theta.khakkinen.local 8.0-RELEASE FreeBSD 8.0-RELEASE #1: Sun Dec 6 23:52:44 EST 2009 karlh@theta.khakkinen.local:/usr/obj/usr/src/sys/Theta i386 >Description: Since installing FreeBSD 8.0 My network performance has dramatically decreased. Before I did the upgrade, I tested my network speed. After installing 8.0 (Clean install), I redid the test. The results were: FreeBSD 7.2: 504.41 KB/s FreeBSD 8.0: 273.17 KB/s When I retested, the results were the same. I have also talked to other people who have upgraded to 8.0 and they say they have noticed the same problem. One of my friends who did it, noted these results on his Gigabit network: FreeBSD 7.2: 112.5MB/s FreeBSD 8.0: 62.5MB/s He is running the AMD64 version. We both tested using TTCP. >How-To-Repeat: Seems to be the simple act of installing FreeBSD 8.0 causes the issue. >Fix: The only slight patch that I found was to set the following sysctls: net.isr.direct=0 kern.random.sys.harvest.ethernet=0 kern.random.sys.harvest.interrupt=0 It seemed to work for a few minutes, then the performance dropped to new lowers (Averaging 110 KB/s). >Release-Note: >Audit-Trail: >Unformatted: