From owner-freebsd-stable@FreeBSD.ORG Sun Jun 25 03:12:57 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 35DE316A494 for ; Sun, 25 Jun 2006 03:12:57 +0000 (UTC) (envelope-from nikolas.britton@gmail.com) Received: from nz-out-0102.google.com (nz-out-0102.google.com [64.233.162.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id C341343D48 for ; Sun, 25 Jun 2006 03:12:56 +0000 (GMT) (envelope-from nikolas.britton@gmail.com) Received: by nz-out-0102.google.com with SMTP id n1so1053983nzf for ; Sat, 24 Jun 2006 20:12:56 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=WP8k9yj4IqO/5erpwbQVJRwo4+JdGcsIa+TGS725gl2ILI2PL9CsI/8KOnY3B/sIOfkhmShXRtZ3znHmdQJsLJGbZKday7F8nYx4IySAIZPgzYNIT9W4mZ2iROlaJCdvBHGH3sv1Q9Pk2Jr2UEd2xNrdiykxvMyKYaZksW8qwyI= Received: by 10.36.251.25 with SMTP id y25mr6028250nzh; Sat, 24 Jun 2006 20:12:56 -0700 (PDT) Received: by 10.36.12.11 with HTTP; Sat, 24 Jun 2006 20:12:56 -0700 (PDT) Message-ID: Date: Sat, 24 Jun 2006 20:12:56 -0700 From: "Nikolas Britton" To: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Subject: Effects of changing tar's -b option. X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Jun 2006 03:12:57 -0000 Test Setup: 250 50MB files (13068252KB) dd if=/dev/random of=testfile bs=1m count=50 Ethernet mtu=6500 Transferred files were wiped after every test with 'rm -r *'. Test: hostB: nc -4l port | tar xpbf n - hostA: date; tar cbf n - . | nc hostB port; date Test Results: seconds = n 645sec. = 1024 670sec. = 512 546sec. = 256 503sec. = 128 500sec. = 128 (control) 515sec. = 96 508sec. = 64 501sec. = 20 (default) Conclusions: Make your own. -- BSD Podcasts @: http://bsdtalk.blogspot.com/ http://freebsdforall.blogspot.com/