From owner-freebsd-questions@FreeBSD.ORG Sat Jul 21 03:09:38 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 366C116A41A for ; Sat, 21 Jul 2007 03:09:38 +0000 (UTC) (envelope-from wmc20@xxiii.com) Received: from fmailhost04.isp.att.net (fmailhost04.isp.att.net [204.127.217.104]) by mx1.freebsd.org (Postfix) with ESMTP id 26E6913C45D for ; Sat, 21 Jul 2007 03:09:38 +0000 (UTC) (envelope-from wmc20@xxiii.com) Received: from wcox.bellsouth.net (adsl-068-209-177-221.sip.ard.bellsouth.net[68.209.177.221]) by bellsouth.net (frfwmhc04) with SMTP id <20070721025843H04005dk4ce>; Sat, 21 Jul 2007 02:58:44 +0000 X-Originating-IP: [68.209.177.221] Message-Id: <6.2.3.4.2.20070720225343.01e1ce90@mailsvr.xxiii.com> X-Mailer: QUALCOMM Windows Eudora Version 6.2.3.4 Date: Fri, 20 Jul 2007 22:58:50 -0400 To: James Long ,freebsd-questions@freebsd.org From: r17fbsd@xxiii.com In-Reply-To: <20070720220337.GA87174@ns.umpquanet.com> References: <20070720220337.GA87174@ns.umpquanet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Cc: Subject: Re: speed of bzip2 versus gzip X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Jul 2007 03:09:38 -0000 At 06:03 PM 7/20/2007, James Long wrote: >Is it normal for bzip2 to be significantly slower than gzip? If not, >where can I look for things that might be causing "bzip2 --fast" to >take 50-60 times longer to compress a (sendmail log) file than gzip? In my experience, Yes -- It's dreadfully slow. Some notes in the man page suggest it's designed to achieve very high compression but with correspondingly high cpu & memory demands. I just stick with gzip personally. -RW