From owner-freebsd-current@FreeBSD.ORG Mon Nov 8 01:14:33 2010 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 6B613106566C; Mon, 8 Nov 2010 01:14:33 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from esa-annu.mail.uoguelph.ca (esa-annu.mail.uoguelph.ca [131.104.91.36]) by mx1.freebsd.org (Postfix) with ESMTP id 0CA0A8FC08; Mon, 8 Nov 2010 01:14:32 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvQEAOPd1kyDaFvO/2dsb2JhbACDMJBWjnCpVpAwhFVzBIRYhX0 X-IronPort-AV: E=Sophos;i="4.58,311,1286164800"; d="scan'208";a="98103489" Received: from erie.cs.uoguelph.ca (HELO zcs3.mail.uoguelph.ca) ([131.104.91.206]) by esa-annu-pri.mail.uoguelph.ca with ESMTP; 07 Nov 2010 20:14:31 -0500 Received: from zcs3.mail.uoguelph.ca (localhost.localdomain [127.0.0.1]) by zcs3.mail.uoguelph.ca (Postfix) with ESMTP id E04D6B3F49; Sun, 7 Nov 2010 20:14:31 -0500 (EST) Date: Sun, 7 Nov 2010 20:14:31 -0500 (EST) From: Rick Macklem To: pyunyh@gmail.com Message-ID: <74999496.222044.1289178871881.JavaMail.root@erie.cs.uoguelph.ca> In-Reply-To: <20101108002601.GC1279@michelle.cdnetworks.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_222043_2030575660.1289178871880" X-Originating-IP: [99.225.56.115] X-Mailer: Zimbra 6.0.7_GA_2476.RHEL4 (ZimbraWebClient - IE8 (Win)/6.0.7_GA_2473.RHEL4_64) Cc: alc@freebsd.org, freebsd-current@freebsd.org Subject: Re: re(4) driver dropping packets when reading NFS files 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: Mon, 08 Nov 2010 01:14:33 -0000 ------=_Part_222043_2030575660.1289178871880 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit > > If that made difference, all other ethernet controllers would have > suffered from the similar issues. > Well, some commit done between June 7 and June 15 made a difference, but I have no idea what or why. Also, I had a report of very poor read rate from someone using a bge(4) interface, but I have no reason to believe it is because of the same issue. > > If you have some spare time please try attach one. I guess fast > ethernet controller has smaller FIFO size than that of GigE > controller so it is frequently triggered the issue on fast ethernet > controller than GigE controllers. I still guess that there are > cases that an interrupt is not correctly served such that driver > missed a lot of frames. > Patch didn't help. If anything it degrading things a bit (stats are attached). rick ------=_Part_222043_2030575660.1289178871880 Content-Type: text/plain; name=re.stats Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename=re.stats cmUwIHN0YXRpc3RpY3M6ClR4IGZyYW1lcyA6IDEwMjAwOQpSeCBmcmFtZXMgOiAxMzMzMTgKVHgg ZXJyb3JzIDogMApSeCBlcnJvcnMgOiAwClJ4IG1pc3NlZCBmcmFtZXMgOiAxNTI0NgpSeCBmcmFt ZSBhbGlnbm1lbnQgZXJycyA6IDAKVHggc2luZ2xlIGNvbGxpc2lvbnMgOiAwClR4IG11bHRpcGxl IGNvbGxpc2lvbnMgOiAwClJ4IHVuaWNhc3QgZnJhbWVzIDogMTMzMzA2ClJ4IGJyb2FkY2FzdCBm cmFtZXMgOiAwClJ4IG11bHRpY2FzdCBmcmFtZXMgOiAxMgpUeCBhYm9ydHMgOiAwClR4IHVuZGVy cnVucyA6IDAK ------=_Part_222043_2030575660.1289178871880--