Where to find MaxConcurrentRequestsPerCPU

Hi,

How to set the below parameters in IIS 8.0.

1. MaxConcurrentRequestsPerCPU
2. MaxConcurrentThreadsPerCPU
3. RequestQueueLimit

According to the RAP tool, currently the MaxConcurrentRequestsPerCPU is set to 12 which needs to be changed to 5000. I am not able to find it in either Aspnet.config or web.config

Please help.

Regards,

Lirish