Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:70487 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 50303 invoked from network); 3 Dec 2013 09:59:03 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 3 Dec 2013 09:59:03 -0000 Authentication-Results: pb1.pair.com header.from=mike.php.net@gmail.com; sender-id=pass Authentication-Results: pb1.pair.com smtp.mail=mike.php.net@gmail.com; spf=pass; sender-id=pass Received-SPF: pass (pb1.pair.com: domain gmail.com designates 74.125.83.48 as permitted sender) X-PHP-List-Original-Sender: mike.php.net@gmail.com X-Host-Fingerprint: 74.125.83.48 mail-ee0-f48.google.com Received: from [74.125.83.48] ([74.125.83.48:61255] helo=mail-ee0-f48.google.com) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id 81/A0-46967-66BAD925 for ; Tue, 03 Dec 2013 04:59:02 -0500 Received: by mail-ee0-f48.google.com with SMTP id e49so1299976eek.7 for ; Tue, 03 Dec 2013 01:58:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:subject:from:to:cc:date:in-reply-to:references :content-type:mime-version:content-transfer-encoding; bh=zjetA3cc+bPz+ay3UgaT/04rp8t9ixjfB/c8iyVwBK8=; b=N8kBzkzdCLcm9pd5Ukdqo0wDXeVobcMafsZnAMCRNCqfMCMsJDUIUSqxWjL0aNFRui PK8G/JVl/L6rOmfc31SHiYpHaeyNST8eC4+j93QtlN8edHW6nVGZ3ROgQsujnxnieYGJ pjcZKxhm0PtvkcEkmQizLGEhEvJJCO8joUlMm4p3F+LsPgiKvC4OP0BYg1to/p9GJtnS PSpeMTaXt2OGCxkFTeIkTFzxND+D5Jh/pS3hTf7wtmA0iHTl6XrVcsBkr9WD6fp7HukN kKGKqkrbfHEwbfbFoO1ijdwlzuAzKnnMPlaOPVV5BYL0Drm2tsd30BPbKQ1y6GiYSfN8 Zsig== X-Received: by 10.15.77.134 with SMTP id p6mr45746832eey.0.1386064739524; Tue, 03 Dec 2013 01:58:59 -0800 (PST) Received: from [192.168.1.120] (178-18-170-101.customer.bnet.at. [178.18.170.101]) by mx.google.com with ESMTPSA id g7sm31909297eet.12.2013.12.03.01.58.58 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 03 Dec 2013 01:58:59 -0800 (PST) Message-ID: <1386064737.2637.8.camel@smugmug> To: Zeev Suraski Cc: Hannes Magnusson , Andi Gutmans , Gustavo Lopes , Laruence , Dmitry Stogov , PHP Internals , Gadi Goldbarg Date: Tue, 03 Dec 2013 10:58:57 +0100 In-Reply-To: <759ccd0f06663defc84ffee473b51210@mail.gmail.com> References: <529D1197.5000305@nebm.ist.utl.pt> <8BCA5A38-788B-4E6A-A6AC-1A8DCBA3D8D9@zend.com> <759ccd0f06663defc84ffee473b51210@mail.gmail.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [PHP-DEV] strtr() performance degradation From: mike.php.net@gmail.com (Mike) On Tue, 2013-12-03 at 10:29 +0200, Zeev Suraski wrote: Hi! > We've all experienced first-hand what a complete rewrite of a very popular > piece of code can do, and the fact that compatibility can be broken not just > by changing behavior, but also by radically changing the algorithm in a way > that produces very negative performance side effects. What popular piece of code are you referring to? -- Regards, Mike