Faster process creation
Each user's children are forked from that user's parent process.
PHP LSAPIsuEXEC
ProcessGroup mode.
ProcessGroup mode gives every user a dedicated parent process and opcode cache. It combines Daemon-mode speed with per-user isolation and custom php.ini support.
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What Is suEXEC?
suEXEC runs each PHP process as the owner of the account instead of the web server user. If one account is compromised, its scripts can't read or change other users' files — essential for shared hosting.
Benefits
Why ProcessGroup Mode
Per-user opcode cache
LiteSpeed's most powerful opcode caching, isolated per account.
Custom php.ini
Compatible with custom php.ini files and CloudLinux PHP Selector.
Server or vhost level
Enable it globally or only for the accounts that need it.
Comparison
Versus Other Setups
| Setup | How it compares |
|---|---|
| Apache / nginx with suPHP | suPHP uses CGI, which is far slower than LSAPI. Every LiteSpeed mode outperforms it. |
| Apache / nginx with PHP-FPM | FastCGI is faster than CGI, but LSAPI is still about 20% faster — and needs no per-user pool configuration. |
Keep in mind
Limitations
- Uses more memory than Daemon mode because every user keeps a parent process and cache.
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