Bug #68867 [Com]: Opcache performance regression

Edit report at https://bugs.php.net/bug.php?id=68867&edit=1 ID: 68867 Comment by: lukemauldin at gmail dot com Reported by: lukemauldin at gmail dot com Summary: Opcache performance regression Status: Open Type: Bug Package: Performance problem Operating System: Windows Server 2008 R2 SP1 PHP Version: 5.6.4 Block user comment: N Private report: N New Comment: The exact PHP download files: php-5.4.4-nts-Win32-VC9-x86.zip php-5.4.4-nts-Win32-VC9-x86.zip Previous Comments: ------------------------------------------------------------------------ [2015-01-20 19:25:48] lukemauldin at gmail dot com Description: ------------ Git repository with code to reproduce bug: https://github.com/LukeMauldin/laravel-perf The above Git repository is a standard Laravel application with these routes added: /showview /simplejson /simplepdo/{N} /simpleeloquent/{N} I obtained the HTTP response times below (in milliseconds) on a AWS Windows Server 2008 R2 instance using IIS and FastCGI. I measured using curl on the local instance to prevent any network problems. They were repeatable over a period of several days. PHP 5.6 is version 5.6.4 PHP 5.4 is version 5.4.4. Both use the standard PHP Windows downloads from http://windows.php.net/ Url PHP 5.4 wo/Opache PHP 5.4 w/Opache PHP 5.6 wo/Opache PHP 5.6 w/Opache /showview 60 17 51 17 /simplejson 60 16 53 16 /simplepdo/1 70 23 59 23 /simplepdo/100 294 130 197 182 /simpleeloquent/1 85 28 67 29 /simpleeloquent/100 365 260 298 272 PHP 5.6 without Opcache is faster than PHP 5.4 without Opcache, which is expected. However, with Opcache enabled, PHP 5.4 is faster than PHP 5.6 in the /simplepdo/100 and /simpleeqloent/100 tests which is clearly a regression. The php.ini section for opcache is the same in both: [opcache] opcache.enable = 1 opcache.memory_consumption = 64 opcache.interned_strings_buffer = 12 opcache.max_accelerated_files=16629 opcache.revalidate_freq=60 opcache.fast_shutdown=1 opcache.save_comments = 0 opcache.enable_cli=1 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=68867&edit=1