From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030918AbXDVUft (ORCPT ); Sun, 22 Apr 2007 16:35:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030931AbXDVUft (ORCPT ); Sun, 22 Apr 2007 16:35:49 -0400 Received: from wx-out-0506.google.com ([66.249.82.224]:49747 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030918AbXDVUfr (ORCPT ); Sun, 22 Apr 2007 16:35:47 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type; b=mD6dJ4nHMc/3r/qMGhIs9MTG19JPYAvB52eiYuEKXeAqcrEuCeQsuidmu2pJfQtOM9A4AQM+vBWHPPCaAuYIbkfRMQeJG2y8yD1cvvoY0ZRanaqqEfph0z2UhKARGe7QkfRq6fSYfgoF9LJqmCHmH7QsryHuerk5uPbMKmaTI7U= Message-ID: <2e4afe1e0704221335y6d4c84d8id65e71826ce60acb@mail.gmail.com> Date: Mon, 23 Apr 2007 02:05:47 +0530 From: "Karuna sagar K" To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: ChunkFS - measuring cross-chunk references MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_156904_28539737.1177274147224" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org ------=_Part_156904_28539737.1177274147224 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi, The attached code contains program to estimate the cross-chunk references for ChunkFS file system (idea from Valh). Below are the results: test on ext3, / partition-1 on 27 March 2007 Number of files = 217806 Number of directories = 24295 Total size = 8193116 KB Total data stored = 7557892 KB Size of block groups = 131072 KB Number of inodes per block group = 16288 Total no. of cross references = 60657 ------------------------------------------------ test on ext3, / partition-1 on 22 March 2007 Number of files = 230615 Number of directories = 24243 Total size = 8193116 KB Total data stored = 7167212 KB Size of block groups = 131072 KB Number of inodes per block group = 16288 Total no. of cross references = 62163 ------------------------------------------------ test on ext3, / partition-2 on 22 March 2007 Number of files = 79509 Number of directories = 6397 Total size = 3076888 KB Total data stored = 1685100 KB Size of block groups = 131072 KB Number of inodes per block group = 16032 Total no. of cross references = 17996 --------------------------------------------------------------------------- test on ext3, /home partition-3 on 20 April 2007 Number of files = 157632 Number of directories = 13652 Total size = 10233404 KB Total data stored = 9490196 KB Size of block groups = 131072 KB Number of inodes per block group = 16224 Total no. of cross references = 27184 --------------------------------------------------------------------------- Comments?? 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