X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id F0CF69DD670 for ; Thu, 1 Dec 2005 14:03:23 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 10221-03 for ; Thu, 1 Dec 2005 14:03:20 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from floppy.pyrenet.fr (news.pyrenet.fr [194.116.145.2]) by postgresql.org (Postfix) with ESMTP id A9E0C9DCAB5 for ; Thu, 1 Dec 2005 14:03:20 -0400 (AST) Received: by floppy.pyrenet.fr (Postfix, from userid 106) id F175C3368C; Thu, 1 Dec 2005 19:03:20 +0100 (MET) From: "Qingqing Zhou" X-Newsgroups: pgsql.performance Subject: Re: filesystem performance with lots of files Date: Thu, 1 Dec 2005 13:03:20 -0500 Organization: Hub.Org Networking Services Lines: 19 Message-ID: References: X-Complaints-To: usenet@news.hub.org X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-RFC2646: Format=Flowed; Response To: pgsql-performance@postgresql.org X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0 required=5 tests=[none] X-Spam-Score: 0 X-Spam-Level: X-Archive-Number: 200512/29 X-Sequence-Number: 15850 "David Lang" wrote > > a few weeks ago I did a series of tests to compare different filesystems. > the test was for a different purpose so the particulars are not what I > woud do for testing aimed at postgres, but I think the data is relavent) > and I saw major differences between different filesystems, I'll see aobut > re-running the tests to get a complete set of benchmarks in the next few > days. My tests had their times vary from 4 min to 80 min depending on the > filesystem in use (ext3 with hash_dir posted the worst case). what testing > have other people done with different filesystems? > That's good ... what benchmarks did you used? Regards, Qingqing