You can both monitor and tune thread pool settings through the Admin Console. To configure monitoring with the Admin Console, open the page Configurations > config-name > Monitoring. To view monitoring information with the Admin Console, open the page Stand-Alone Instances > instance-name (Monitor).
Configure thread pool settings through the Admin Console at Configurations > config-name > Thread Pools.
Since threads on Unix/Linux are always operating system (OS)-scheduled, as opposed to user-scheduled, Unix/Linux users do not need to use native thread pools. Therefore, this option is not offered in a Unix/Linux user interface. However, it is possible to edit the OS-scheduled thread pools and add new thread pools, if needed, using the Admin Console.