Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:45292 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 29606 invoked from network); 17 Aug 2009 04:40:28 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 17 Aug 2009 04:40:28 -0000 Authentication-Results: pb1.pair.com smtp.mail=stas@zend.com; spf=pass; sender-id=pass Authentication-Results: pb1.pair.com header.from=stas@zend.com; sender-id=pass Received-SPF: pass (pb1.pair.com: domain zend.com designates 63.205.162.117 as permitted sender) X-PHP-List-Original-Sender: stas@zend.com X-Host-Fingerprint: 63.205.162.117 us-mr1.zend.com Linux 2.4/2.6 Received: from [63.205.162.117] ([63.205.162.117:47219] helo=us-mr1.zend.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id DD/38-13350-B3FD88A4 for ; Mon, 17 Aug 2009 00:40:28 -0400 Received: from us-gw1.zend.com (us-ex1.zend.net [192.168.16.5]) by us-mr1.zend.com (Postfix) with ESMTP id 51FBEE123E; Sun, 16 Aug 2009 21:27:55 -0700 (PDT) Received: from [192.168.27.6] ([192.168.27.6]) by us-gw1.zend.com with Microsoft SMTPSVC(6.0.3790.3959); Sun, 16 Aug 2009 21:41:32 -0700 Message-ID: <4A88DF33.3080709@zend.com> Date: Sun, 16 Aug 2009 21:40:19 -0700 Organization: Zend Technologies User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: Lothar Scholz CC: Paul Biggar , internals@lists.php.net References: <465610226.20090816150239@scriptolutions.com> <1035866081.20090816155804@scriptolutions.com> <613920271.20090817005351@scriptolutions.com> In-Reply-To: <613920271.20090817005351@scriptolutions.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 17 Aug 2009 04:41:32.0274 (UTC) FILETIME=[FE6AB520:01CA1EF4] Subject: Re: [PHP-DEV] Design of the Zend Engine's Instruction Set From: stas@zend.com (Stanislav Malyshev) Hi! > compilers, for example from intel or sun studio? Did you test or have > you ever heard of someone who tested the influence of the profiling > feedback that modern C compilers offer? (Well don't ask me - it's We tried it with Visual PGO and there's some small improvement (around 10% IIRC) but since it depends on training I'm not sure it would be the same for all apps - that actually depends on what VC optimizes and if it's generic enough. -- Stanislav Malyshev, Zend Software Architect stas@zend.com http://www.zend.com/ (408)253-8829 MSN: stas@zend.com