# Performance Tuning

Here are some settings for performance tuning your servers

## Max Requests

This setting limits how many requests will be passed through the Undertow listener to your app server.  It defaults to 8 times the number of CPU cores. Please note that your web server connector and Adobe ColdFusion or Lucee may also have their own max request settings.

```bash
server set web.maxRequests=100
```

Or as a global setting for all servers:

```bash
config set server.defaults.web.maxRequests=100
```

{% hint style="danger" %}
Max Requests can NOT be set on a per-site basis since this setting controls the size of Undertow's worker task pool.  You can, however, use the `request-limit( 10 )` handler in a server rule that applies only to a specific site.  Keep in mind, the maxRequests setting will still enforce an overall total running threads for all sites on a server.
{% endhint %}