From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Karuna sagar K" Subject: Re: ChunkFS - measuring cross-chunk references Date: Sun, 20 May 2007 04:19:10 +0530 Message-ID: <2e4afe1e0705191549w68992907p74c8b6310da2a33a@mail.gmail.com> References: <2e4afe1e0704221335y6d4c84d8id65e71826ce60acb@mail.gmail.com> <462B8D0C.7020509@ksu.edu> <2e4afe1e0704230019h3853bc82uae6c9b5cdc325ab9@mail.gmail.com> <1177320876.23226.7.camel@garfield> <20070423205333.GZ5967@schatzie.adilger.int> <20070424001306.GB1663@thunk.org> <2e4afe1e0704241717l6e6ec72by898727b5973c221@mail.gmail.com> <2e4afe1e0704241720q3eb54e24gcd10b2026759333@mail.gmail.com> <20070425102342.GA26179@in.ibm.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_75191_7878007.1179614950193" Cc: "Theodore Tso" , "Kalpak Shah" , "Amit Gud" , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, val_henson@linux.intel.com To: suparna@in.ibm.com Return-path: Received: from nz-out-0506.google.com ([64.233.162.231]:10063 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760169AbXESWtL (ORCPT ); Sat, 19 May 2007 18:49:11 -0400 Received: by nz-out-0506.google.com with SMTP id r28so1739957nza for ; Sat, 19 May 2007 15:49:10 -0700 (PDT) In-Reply-To: <20070425102342.GA26179@in.ibm.com> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org ------=_Part_75191_7878007.1179614950193 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline On 4/25/07, Suparna Bhattacharya wrote: > On Wed, Apr 25, 2007 at 05:50:55AM +0530, Karuna sagar K wrote: > > One more set of numbers to calculate would be an estimate of cross-references > across chunks of block groups -- 1 (=128MB), 2 (=256MB), 4 (=512MB), 8(=1GB) > as suggested by Kalpak. > Here is the tool to make such calculations. Result of running the tool on / partition of ext3 file system (each chunk is 4 times a block group): ./cref.sh /dev/hda1 dmp /mnt/test 4 ------------------------------------------------------- Number of files = 221763 Number of directories = 24456 Total size = 8193116 KB Total data stored = 7179200 KB Size of block groups = 131072 KB Number of inodes per block group = 16288 Chunk size = 524288 KB No. of cross references between directories and sub-directories = 869 No. of cross references between directories and file = 584 Total no. of cross references = 13806 (dir ref = 1453, file ref = 12353) ------------------------------------------------------- > Once we have that, it would be nice if we can get data on results with > the tool from other people, especially with larger filesystem sizes. > Thanks, Karuna ------=_Part_75191_7878007.1179614950193 Content-Type: application/x-bzip2; name=cref.tar.bz2 Content-Transfer-Encoding: base64 X-Attachment-Id: f_f1wnrlpx Content-Disposition: attachment; filename="cref.tar.bz2" QlpoOTFBWSZTWdr1/IMAB9P/lNywAEB////fv6/erv////4BAAAAgAhgCv88Pfd3YfX2Z77q4Nml 5tvO+++OtAHoBQDJhkiI8qaek9I/SjQDRpo9IA0GmyIyAAAAzUAlCAIJpPRBqDQDTQDamgANABoa ANABpkSk9E0GgAyAAAAA0AAGgADQCFSUm1NDQNGhoAAAAaAAAAAAAEUk9TVT8qP1J6nqeU9Rpo9J oaHkgAAaAADQAAAiUQCZCaaGkxNTxR6FPaKaYCDIDQHpNDTynlDTT7g+v+P15dHS9n4GAS2KhMRV ev3rjaaztrJQbA4u6z39AyQxScgRVKg1RMxQkhJGEKpSmIiaUpqIggKqkmAiSmJWhiWKqmoooqQq WIiKImqommBlIilhJIkYIgoqUhCSCGF3HG/MK6r5ZJMxCmQnOyd3ZwxnMmEF1KUMBCIeIILFKMEF pDUgmCYmYGgFWCIkrX4Qy2QKF9lGtsrC6zGtskqwmMKxqyLMKNIplgwpoCE5pKAoiIaqCaKiz6EV rw5tOVgIrzT4TUCzT63l2CRNQsajouCSWpnrajmhWSEhxBA4Bzh7AsX/pwX4R9ZAPUd/Hb7DE1k5 Dyem0qcPhShp1Wmrqspn9C/LFoBOIG9Pafdeh7oXRWes3eopsJVkx33lbVvDzBL/7e21Pnm1Nle7 xd2y/29dUj2PPsDpIhwILuI41X6eRPdZjoQ4S+1NxS5UVQzLFmqMMuHuFaeJENBtjA+0mOtxCodO b3jYVlpTlLZ2Q1QlTDHQ5PeDmT76sJdREW2I4svIE6ElQ1RQgStpIldSlhTy89H6Ahcx+Ali0d5i aDqvoauxsWpqoRmc1WFTFmW6N44IFVjsswg9RWWWZ7jjLlrKQHHyxsyi1MXYo6MUqucFeoImtFm/ PTfZnxz9rrb2F/Myoy2yxxsv2tC0zCh7uYrkuuhQ0vah/rROk8npQ9XdYvGHVz3JSFKDywAyXyCQ EiXjP901LJNqEq/iAM8ihQxa2xqxKZ3MsIlGjtFqGoS6M619FJJqUCAFhbYDnihDKo6OyUcEQmSc 4UppODI9AneGCw7Jbbm1T5QHZNExBpKSslCZ+1xr8zwLcGbaHBLY62iqi0waeotMWybjRCF8ZOAV 8VoqD2JRgQ9t3rw3r91l0+q3VRrXLNZNhnXfhxHbbuI47qnXAkXmfmOFp054HXWpCXo4HFtDjQv4 e22yYLxlVleY3b3i13lS6FCcUaRkKzfhfWlgZ1JlUrsA7D4woHFe0dCWHvLRD/kXk8tKFKDe5HgQ 8+h9XJj5ScWOct+LBDw0EzOY6uu7l+3dU/9m5POAeijosR5CwEgB+tOjt9EH1EBpC9C9AvPXhrzs AbSDIm6EqgqcG9wW/BaiYV98gv5krAwBQbLSiHQmxCgWEZEXhYEapWVPJHMVgOJsxIMo+QQrOoY3 ll9x4/JtO17Dd6Pj9tfQSG9O8+SEgEllKKwiApeKrOdTO83ucMOJCssRhBlkqIdMrpyOax/XiabG RlSozGoqza+659IEVFLrVFasVGFSou3CptUD4FPBaIFKEKCuhoW5eUlouZZWik3AC8Zweqkpwi1f vmQDtOzx4KoRJ6eYxRZvPrCuQTUrr7WIEQumGI3AI4gyuBAZ6yWNAaFC0whodelImc5u/rWqYXoY oXaK4kDNSATzut9G6rRJkm1EunPO5GuQ5ecrNupr94dpEr+ICF6/fl+Y4g+R8B9JQJeiGHoGEI7O 6sCSWSX8uUuAbWiawVRJxyRAckBCQLdtAhVRUVg84RFAVREGFOoFMBk1BFUUKZ2zdKzVp9dd+Ghl /NEftvo62e8JE+2mFMRCjEg7gDAdEDf34J4hVFTWq7X2uHsQSwVJUUF4Eb2sFJIkjnAuEmiUhJQC 9IERAEPBiGcjNi41PZjiwvKm5Gtc7lVyhWyzhMXNQucVAnotKIUGuyxpANpQyXbTEtMgc1MhDt13 1G6zgQlS4s5KiEpNv7On8LXoDabwKp7vnSuvYTcdS8dqLKm6DaFPFzFcLJNUkl6nsWCUHrEZjl+w TAEwSVprzQaYoULpDn1gRc5UjC8uHIt2wD2X9A9Fk+zvSef38tQP8i2WaX9VloyFbm4Z01qZiS2w ily7AyEOGWKIYIuBQCD/GpYAGv4MjEMZn5mw24MCFizFA10TktDzMFPG5b5hwK8JcuM2dZyQoYFn Pa3I5lrq6oB7nVuNs0EYUSCUfGuaDPHl0EwDdhQpCUSEJQlpVtWBDVdLqEnq377LZMUpg5UODXfU iQkujdSgkCmcKDxTbaeMx9Pk60uiK82GPadLzIv5+dNYeZdoTEIBUgPLwkoZgHabOjzg9YFHuKIf rgIZPYBiGhpFTg5ovTeh3EU6+kuw4dvGp6wbjO4b8+knIb9t2QScxSTExOy5BvOPhh47KimnrE1v zQdDAgfjMi+ETnCS3Rk4iQJoKIlWGaprTLOIcglWL16NKK2xdLV4cAAKd6x8FeGJ+q5hNii9IGab Brz7jHEciIXgzZfzzZsdglaLa9AXdDrtrhx11KUQaca3PiHKLQ9YDK0JpRQ6aqeBoM2XtgN5kpQS VN1yLgIWhGEBCSWFoKZVkCQMKU/fYgFqENbCxJJQYSErAoRhURvK96WoFjcvYYTozYD9ZLuVCGLU 0XLn8914i6EQzQ14DQDoi1aShAocqZwLktbQN0+xtW9TEMCKQzCaKWaTS1mFsEpgpkCIJKLCDKpX U8iJXYB/i5be5sAdWGaZmfMG5iZ6ylhUhIw3RqRSgEJJBsLBS9AzHVJcBd/XNdQXEVI4NzuTHFHU gZBXNB0R0DLwD8ApVA0dQA6IfzWIZKGqLAh2G2zSPxwZ5GWy2zla2D9viHJh6d/Si2G4wkZ31dV6 8oWmJDz/KUDBh4qd5XoCpQi0KVi0CUDM6zMishQmgHIGxHWkNWumog85O2YzmhlacZXFCFIRJsIt GdcKsXSN9y1o0EbZQZ5bFCL6Rhv1MiwHUuL6gZ1uSwVhAyq5siBNoUBtNKmJdl4y49BKn0dHlUTc cRem8gkhQo3omydqPxBvTbrQi720wOqou9DnIjbqFegS9F1hrH2kMZIs8dVP+LuSKcKEhtev5Bg= ------=_Part_75191_7878007.1179614950193--