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 8CA489DC83C for ; Wed, 22 Mar 2006 13:11:21 -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 94058-07 for ; Wed, 22 Mar 2006 13:11:20 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mail.mi8.com (d01gw02.mi8.com [63.240.6.46]) by postgresql.org (Postfix) with ESMTP id EFCAE9DCAD6 for ; Wed, 22 Mar 2006 13:11:16 -0400 (AST) Received: from 172.16.1.25 by mail.mi8.com with ESMTP (- Welcome to Mi8 Corporation www.Mi8.com (D2)); Wed, 22 Mar 2006 12:11:02 -0500 X-Server-Uuid: 7829E76E-BB9E-4995-8473-3C0929DF7DD1 Received: from MI8NYCMAIL06.Mi8.com ([172.16.1.160]) by D01HOST03.Mi8.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 22 Mar 2006 12:11:00 -0500 Received: from 69.181.100.71 ([69.181.100.71]) by MI8NYCMAIL06.Mi8.com ( [172.16.1.219]) via Exchange Front-End Server mi8owa.mi8.com ( [172.16.1.106]) with Microsoft Exchange Server HTTP-DAV ; Wed, 22 Mar 2006 17:10:59 +0000 User-Agent: Microsoft-Entourage/11.2.3.060209 Date: Wed, 22 Mar 2006 09:10:58 -0800 Subject: Re: Intel C/C++ Compiler Tests From: "Luke Lonergan" To: "Spiegelberg, Greg" , pgsql-performance@postgresql.org Message-ID: Thread-Topic: [PERFORM] Intel C/C++ Compiler Tests Thread-Index: AcZNuFxkcqpGyO4kTzKl0IKZpizn/QAGznOL In-Reply-To: <82E74D266CB9B44390D3CCE44A781ED9E284B5@POSTOFFICE.cranel.local> MIME-Version: 1.0 X-OriginalArrivalTime: 22 Mar 2006 17:11:00.0715 (UTC) FILETIME=[97D143B0:01C64DD3] X-WSS-ID: 683F5AA82XS32091004-02-01 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=1.35 required=5 tests=[AWL=0.097, RCVD_NUMERIC_HELO=1.253] X-Spam-Score: 1.35 X-Spam-Level: * X-Archive-Number: 200603/463 X-Sequence-Number: 17900 Greg, On 3/22/06 5:56 AM, "Spiegelberg, Greg" wrote: > Has anyone tested PostgreSQL 8.1.x compiled with Intel's Linux C/C++ > compiler? We used to compile 8.0 with icc and 7.x before that. We found very good performance gains for Intel P4 architecture processors and some gains for AMD Athlon. Lately, the gcc compilers have caught up with icc on pipelining optimizations and they generate better code for Opteron than icc, so we found that icc was significantly slower than gcc on Opteron and no different on P4/Xeon. Maybe things have changed in newer versions of icc, the last tests I did were about 1 year ago. - Luke