X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 1918E9FA226 for ; Thu, 18 May 2006 04:52:55 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 31459-03 for ; Thu, 18 May 2006 04:52:48 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from svr4.postgresql.org (svr4.postgresql.org [66.98.251.159]) by postgresql.org (Postfix) with ESMTP id 542559FA48C for ; Thu, 18 May 2006 04:52:49 -0300 (ADT) Received: from mail.enyo.de (mail.enyo.de [212.9.189.167]) by svr4.postgresql.org (Postfix) with ESMTP id 8F91F5B369B for ; Thu, 18 May 2006 07:52:47 +0000 (GMT) Received: from deneb.vpn.enyo.de ([212.9.189.177] helo=deneb.enyo.de) by mail.enyo.de with esmtp id 1FgdJG-0006b2-U3; Thu, 18 May 2006 09:52:39 +0200 Received: from fw by deneb.enyo.de with local (Exim 4.62) (envelope-from ) id 1FgbDy-00012S-6x; Thu, 18 May 2006 07:39:02 +0200 From: Florian Weimer To: "Jignesh K. Shah" Cc: Arjen van der Meijden , pgsql-performance Subject: Re: Pgsql (and mysql) benchmark on T2000/Solaris and some References: <44699C6C.80302@tweakers.net> <4469D173.50406@sun.com> Date: Thu, 18 May 2006 07:39:01 +0200 In-Reply-To: <4469D173.50406@sun.com> (Jignesh K. Shah's message of "Tue, 16 May 2006 14:19:47 +0100") Message-ID: <8764k3uc22.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200605/376 X-Sequence-Number: 19163 * Jignesh K. Shah: > * llseek is high which means you can obviously gain a bit with the > right file system/files tuning by caching them right. It might also make sense to switch from lseek-read/write to pread/pwrite. It shouldn't be too hard to hack this into the virtual file descriptor module.