For "Limit action" in IIS settings Option, If we select "Shutdown" then Application pool with stop ?
IIS Application Pool setting: shutdown limit action - The application pool will not stop. However, the process that exceeds its CPU limit will be forced to shut down, and new process will be spawned. Another option may be to Throttle, which will limit the processor usage to the value set. Useful information was found How to manage and monitor CPU/RAM usage per domains in Plesk for Windows Server – Plesk Help Center .