Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:44266 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 37382 invoked from network); 13 Jun 2009 18:04:52 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 13 Jun 2009 18:04:52 -0000 Authentication-Results: pb1.pair.com header.from=pierre.php@gmail.com; sender-id=pass; domainkeys=bad Authentication-Results: pb1.pair.com smtp.mail=pierre.php@gmail.com; spf=pass; sender-id=pass Received-SPF: pass (pb1.pair.com: domain gmail.com designates 72.14.220.154 as permitted sender) DomainKey-Status: bad X-DomainKeys: Ecelerity dk_validate implementing draft-delany-domainkeys-base-01 X-PHP-List-Original-Sender: pierre.php@gmail.com X-Host-Fingerprint: 72.14.220.154 fg-out-1718.google.com Received: from [72.14.220.154] ([72.14.220.154:3044] helo=fg-out-1718.google.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 59/C4-12802-14AE33A4 for ; Sat, 13 Jun 2009 14:04:50 -0400 Received: by fg-out-1718.google.com with SMTP id 22so135364fge.0 for ; Sat, 13 Jun 2009 11:04:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=t7NLs71Nn1ZztT8tMSBKq55NfdZOAunxGUIFUDipRMk=; b=EeW3lefFxuop4EcRTosVN/8I60Cv1eINgpNuunjXWuOh0bz2VC2BHWVN6CWyVRzyJU 0OWOHTI7KXEaFNUHz+0FA5MOs7nBraKXJVfqikrsNi/MOLZDvMeW6IqfZnik4fYSflZm J2VH9gQP5uKGt09kyQGLLhJepvd7ynAAhMBt0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=lRwJyJ/KxLZEL17F2B2JobjUokV2is/YWiwLoms4LS5Gyw8004A/Iwv2jJ4xXDCSdx 8W4SwjnYHV4A57YSUrwawchJNBPfoZ6gGX58+TEaSmtziaNfQ47NKlr8dD2ltgu2XNAz s02RXkmTP+3sd5NIQ2vW9V7VTNJJyYFi85Ew0= MIME-Version: 1.0 Received: by 10.86.1.18 with SMTP id 18mr5192018fga.19.1244916287106; Sat, 13 Jun 2009 11:04:47 -0700 (PDT) In-Reply-To: <4A33E979.1030700@gmx.net> References: <4A33E979.1030700@gmx.net> Date: Sat, 13 Jun 2009 20:04:46 +0200 Message-ID: To: Christian Seiler Cc: php-dev List Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [PHP-DEV] float ops and _controlfp_s From: pierre.php@gmail.com (Pierre Joye) hi, On Sat, Jun 13, 2009 at 8:01 PM, Christian Seiler wrote: > This ensures that FPUs on x86 systems are definitely in double precision > mode. The default situation on Windows with MSVC is that the FPU is > already in double precision setting as far as I've tested it - however > there are situations (PHP embedded into a webserver for example) where > this may not be true. Should it not be a configure option then? > Could you please provide some details for "significant performance impact"? I will push the numbers online on Monday. Cheers, -- Pierre http://blog.thepimp.net | http://www.libgd.org