From owner-freebsd-scsi@FreeBSD.ORG Mon Jun 1 03:19:37 2009 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AA766106564A for ; Mon, 1 Jun 2009 03:19:37 +0000 (UTC) (envelope-from andrew@modulus.org) Received: from email.octopus.com.au (email.octopus.com.au [122.100.2.232]) by mx1.freebsd.org (Postfix) with ESMTP id 6C61E8FC13 for ; Mon, 1 Jun 2009 03:19:37 +0000 (UTC) (envelope-from andrew@modulus.org) Received: by email.octopus.com.au (Postfix, from userid 1002) id D7F7517255; Mon, 1 Jun 2009 13:00:08 +1000 (EST) X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on email.octopus.com.au X-Spam-Level: X-Spam-Status: No, score=-1.4 required=10.0 tests=ALL_TRUSTED autolearn=failed version=3.2.3 Received: from [115.128.31.186] (unknown [115.128.31.186]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: admin@email.octopus.com.au) by email.octopus.com.au (Postfix) with ESMTP id ADDBC17D1C; Mon, 1 Jun 2009 12:59:56 +1000 (EST) Message-ID: <4A234343.7000809@modulus.org> Date: Mon, 01 Jun 2009 12:56:03 +1000 From: Andrew Snow User-Agent: Thunderbird 2.0.0.6 (X11/20070926) MIME-Version: 1.0 To: cch@kmu.edu.tw References: <4A23376D.4080300@kmu.edu.tw> In-Reply-To: <4A23376D.4080300@kmu.edu.tw> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-scsi@freebsd.org Subject: Re: Some problems about iSCSI initiator 2.1.0 X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Jun 2009 03:19:37 -0000 > Our tests are dd if=/dev/random of=${iSCSI_TARGET_DIR}/bigf bs=1024k > count=1000 Try using /dev/zero instead of /dev/random, which causes excessive CPU load on the initiator which affects the results. - Andrew