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Date: Wed, 21 Nov 2012 15:56:16 +0800 X-Google-Sender-Auth: X9V21RxUN9z87yqkOk38t1p5R6Y Message-ID: To: Dmitry Stogov Cc: PHP Internals , PECL Announce Content-Type: text/plain; charset=UTF-8 Subject: Re: Expose zend_message_dispatcher_p From: laruence@php.net (Laruence) On Wed, Nov 21, 2012 at 2:35 PM, Dmitry Stogov wrote: > [see below] > > On Wed, Nov 21, 2012 at 6:39 AM, Laruence wrote: >> >> Hey: >> >> This problem come out when I was figuring a performance issue of >> Yaf_Loader. >> >> Yaf provides a autoloader like PSR0, when doing a classes >> autoloading. it used to: >> >> 1. stat the file, if file does not exists, return >> 2. zend_compile_file >> >> this is okey when you run yaf without opcode cache. >> >> but when you run yaf with opcode cache, the first stat syscall >> become a little waste. > > > You should just use virtual_realpath() or tsrm_realpath() instead of > stat(). They must utilise realpath cache and avoid stat() calls. Hey: Thanks, Dmitry, actually, I didn't do like that is because by default, realpath cache has 2min ttl. but, after a second think, I think this will be better than my current tricky implementation.. I will try in this way :) thanks > > Thanks. Dmitry. > >> >> since opcode cache always hook the zend_compile_file, and compile >> the file from cache. >> >> so, I changed the autoload to: >> >> 1. zend_compile_file >> 2. if compile failed, then return. >> >> but, zend_compile_file will throw warning if the file doesn't >> exists via zend_message_dispatcher_p >> >> so if zend_message_dispatcher_p is ZEND_API, then I can avoid using >> such mess codes: >> https://github.com/laruence/php-yaf/blob/master/yaf_loader.c#L377 >> >> what do you think? >> >> >> thanks >> -- >> Laruence Xinchen Hui >> http://www.laruence.com/ > > -- Laruence Xinchen Hui http://www.laruence.com/