From owner-freebsd-bugs@FreeBSD.ORG Thu Jun 16 20:10:10 2011 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BCF70106566B for ; Thu, 16 Jun 2011 20:10:10 +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 82C078FC0A for ; Thu, 16 Jun 2011 20:10:10 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p5GKAAGY082247 for ; Thu, 16 Jun 2011 20:10:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p5GKAAJQ082246; Thu, 16 Jun 2011 20:10:10 GMT (envelope-from gnats) Resent-Date: Thu, 16 Jun 2011 20:10:10 GMT Resent-Message-Id: <201106162010.p5GKAAJQ082246@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Christian Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3B61F106564A for ; Thu, 16 Jun 2011 20:05:22 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 2CB8D8FC0A for ; Thu, 16 Jun 2011 20:05:22 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id p5GK5LJK029113 for ; Thu, 16 Jun 2011 20:05:21 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id p5GK5Lmm029111; Thu, 16 Jun 2011 20:05:21 GMT (envelope-from nobody) Message-Id: <201106162005.p5GK5Lmm029111@red.freebsd.org> Date: Thu, 16 Jun 2011 20:05:21 GMT From: Christian To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: misc/157929: NFS slow read X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jun 2011 20:10:10 -0000 >Number: 157929 >Category: misc >Synopsis: NFS slow read >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Jun 16 20:10:09 UTC 2011 >Closed-Date: >Last-Modified: >Originator: Christian >Release: FreeBSD 8.2-RELEASE >Organization: Teleservice Bredband Skane AB >Environment: FreeBSD xxxxxxx.xxx.xxx 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: Having problem with read over NFS, speed does not exceed 300Mbit in our environment. With SAMBA, SCP and other methods we get 900Mbit-1000Mbit in read throughput but when using NFS there seems to be a problem to exceed 300Mbit. We are using ZFS in our environment but have tried to export a non-ZFS volume with no improvements at all. Write speed is good, so if we reverse mount export in the reversed way on server a instead of server b we can write over NFS (in the same direction as we would read in our earlier tests) with a throughput at 900-1000Mbit. >How-To-Repeat: Running FreeBSD 8.2-RELEASE # /etc/export: /vol1 -maproot=root 192.168.x.x # mount 192.168.x.x:/vol1 /mnt/vol1 >Fix: >Release-Note: >Audit-Trail: >Unformatted: