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litespeed_wiki:php:process-mode [2018/09/21 17:36] Michael Alegre [Limitations] |
litespeed_wiki:php:process-mode [2018/09/24 18:08] (current) Michael Alegre [Benefits] |
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| - | Note the two LiteSpeed-specific directives ''[[litespeed_wiki:php:lsapi-environment-variables#lsphp_processgroup|LSPHP_ProcessGroup]]'' and ''[[litespeed_wiki:php:lsapi-environment-variables#lsphp_workers|LSPHP_Workers]]''. Apache will not understand these directives and may crash if it encounters outside of by an ''<IfModule LiteSpeed>'' block. | + | Note the two LiteSpeed-specific directives ''[[litespeed_wiki:php:lsapi-environment-variables#lsphp_processgroup|LSPHP_ProcessGroup]]'' and ''[[litespeed_wiki:php:lsapi-environment-variables#lsphp_workers|LSPHP_Workers]]''. Apache will not understand these directives and may crash if it encounters them outside of by an ''<IfModule LiteSpeed>'' block. |
| ==== Configuration tips ==== | ==== Configuration tips ==== | ||
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| ==== Benefits ==== | ==== Benefits ==== | ||
| * Worker mode is compatible with custom php.ini files including CloudLinux’s CageFS php.ini files, allowing the use of CloudLinux's PHP Selector. | * Worker mode is compatible with custom php.ini files including CloudLinux’s CageFS php.ini files, allowing the use of CloudLinux's PHP Selector. | ||
| - | * When running PHP using a suEXEC execution method, Worker mode conserves resources by killing idle processes. This is more efficient than Apache + PHP-FPM where at least one process is always running in each user's pool. | + | * Worker mode conserves resources by killing idle processes. When running PHP using a suEXEC execution method, this is more efficient than Apache + PHP-FPM where at least one process is always running in each user's pool. |
| ==== Limitations ==== | ==== Limitations ==== | ||
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| ==== Setup ==== | ==== Setup ==== | ||
| - | Worker mode will be used when none the setting requirements for [[#processgroup_mode|ProcessGroup mode]] (default) or [[#daemon_mode|Daemon mode]] have been met. LiteSpeed Web Server may also automatically switch to Worker mode at the Server level if a custom php.ini file is detected when running in [[#daemon_mode|Daemon mode]]. | + | LiteSpeed Web Server will use Worker mode when none of the setting requirements for [[#processgroup_mode|ProcessGroup mode]] (default) or [[#daemon_mode|Daemon mode]] have been met. LiteSpeed Web Server may also automatically switch to Worker mode at the Server level if it detects a custom php.ini file while running in [[#daemon_mode|Daemon mode]]. |
| ===== Mode Comparison ===== | ===== Mode Comparison ===== | ||
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| ^ Number of parent processes | One for each process group\\ (each user) | 1 | 0 | | ^ Number of parent processes | One for each process group\\ (each user) | 1 | 0 | | ||
| ^ Customize number of processes per account? | Yes | Yes | Yes | | ^ Customize number of processes per account? | Yes | Yes | Yes | | ||
| - | ^ Can be enabled only for certain virtual hosts? | Yes | No | No | | + | ^ Can enable only for certain virtual hosts? | Yes | No | No | |
| ^ Custom php.ini supported? (Including CageFS custom php.ini) | Yes | No | Yes | | ^ Custom php.ini supported? (Including CageFS custom php.ini) | Yes | No | Yes | | ||
| ^ Opcode caching | Dedicated per user | Shared throughout server | No | | ^ Opcode caching | Dedicated per user | Shared throughout server | No | | ||