Faster process creation
Children are forked from a running parent instead of starting from scratch.
PHP LSAPIsuEXEC
Daemon mode.
Daemon mode keeps a parent PHP process running and forks children from it. Processes start faster and share a single opcode cache safely across the server.
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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 Daemon Mode
Shared opcode cache
All PHP processes share one opcode cache, even with suEXEC.
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
- Custom per-user php.ini files are not supported — LiteSpeed switches to Worker mode automatically if it detects one.
- Not compatible with CloudLinux PHP Selector.
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