From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id o81319Bt099179 for ; Tue, 31 Aug 2010 22:01:10 -0500 Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 052AF41100 for ; Tue, 31 Aug 2010 20:01:48 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id H7QelS3N4b3sfKEZ for ; Tue, 31 Aug 2010 20:01:48 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id CDEBA6C3F6 for ; Tue, 31 Aug 2010 22:01:47 -0500 (CDT) Message-ID: <4C7DC21B.1040705@hardwarefreak.com> Date: Tue, 31 Aug 2010 22:01:47 -0500 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: deleting 2TB lots of files with delaylog: sync helps? References: <201009010130.41500@zmi.at> <20100901000631.GO705@dastard> In-Reply-To: <20100901000631.GO705@dastard> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Dave Chinner put forth on 8/31/2010 7:06 PM: > You're probably CPU bound, not IO bound. 7200 rpm is the highest spindle speed for 2TB drives--5400 is most common. None of them are going to do much over 200 random seeks/second, if that. That's 400 tops for two drives. Using any modern Intel/AMD ~2 GHz CPU, you think he's CPU bound? Apparently this "rm -rf" type operation is much more complex than I previously believed. -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs