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litespeed_wiki:php:enable_opcode_cache [2018/08/07 15:00]
Lisa Clarke Proofreading
litespeed_wiki:php:enable_opcode_cache [2018/08/07 18:30] (current)
Jackson Zhang [For Shared Hosting Environments:PHP SuEXEC]
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 === ProcessGroup Mode vs. PHP-FPM === === ProcessGroup Mode vs. PHP-FPM ===
 Process Group Mode is similar to Apache php-fpm mode. The difference is: with Apache, the parent process of php-fpm is not controlled by Apache, and it keeps running; with LiteSpeed, LiteSpeed uses LSAPI, and the PHP will exit if idle for a while (in a shared hosting environment and set at [[https://​www.litespeedtech.com/​docs/​webserver/​config/​extapps/​lsapi#​extMaxIdleTime|"​Max Idle time"​]]). ​ For LSWS 5.2.8 and lower versions, PHP processes will stop when LSWS restarts, and the opcode cache will be reset. Starting from LSWS 5.3RC2 and above, LSPHP will run in detached mode and an LSWS restart //​won'​t//​ stop PHP processes. The LSPHP parent will just follow the timeout where [[https://​www.litespeedtech.com/​docs/​webserver/​config/​extapps/​lsapi#​extMaxIdleTime|"​Max Idle time"​]] is set. Process Group Mode is similar to Apache php-fpm mode. The difference is: with Apache, the parent process of php-fpm is not controlled by Apache, and it keeps running; with LiteSpeed, LiteSpeed uses LSAPI, and the PHP will exit if idle for a while (in a shared hosting environment and set at [[https://​www.litespeedtech.com/​docs/​webserver/​config/​extapps/​lsapi#​extMaxIdleTime|"​Max Idle time"​]]). ​ For LSWS 5.2.8 and lower versions, PHP processes will stop when LSWS restarts, and the opcode cache will be reset. Starting from LSWS 5.3RC2 and above, LSPHP will run in detached mode and an LSWS restart //​won'​t//​ stop PHP processes. The LSPHP parent will just follow the timeout where [[https://​www.litespeedtech.com/​docs/​webserver/​config/​extapps/​lsapi#​extMaxIdleTime|"​Max Idle time"​]] is set.
 +
 +Please keep in mind that keep idle PHP process running longer will occupy server resources and there is a risk to overload the server if there is not enough resources. ​
  
 === Sharing Opcode Cache Between Multiple CPU Processes === === Sharing Opcode Cache Between Multiple CPU Processes ===
 
litespeed_wiki/php/enable_opcode_cache.txt · Last modified: 2018/08/07 18:30 by Jackson Zhang