How to configure the IIO settings for Xeon D CPU?

[Mountainsea]

Hello, Intel Support, 

We are using Xeon D 1541 CPU with a Gen 3 PCIe card for high performance PCIe data transfer. 

It is observed the Xeon D CPU IIO sometimes gives high latency which causes data issue. 

In the bios, there is QPI Per Socket Configuration:

Bus Resource Allocation Ratio

IO Resource Allocation Ration

MMIOL Resource Allocation Ratio

IIO Disable (enable/disable);

I would like to check do you have any guidance in setting these registers?

Under processor setting, there is IIO LLC Ways(19:0), do you have any guidance in setting this? 

Thank you.

Mei Guodong

[SergioS_Intel · Accepted solution]

Hello Mountainsea,

Thank you for contacting Intel Customer Support. 

In regards to your question, we would like to encourage you to post the technical information you are looking for in the following community site: 

https://community.intel.com/t5/Embedded-Developers/ct-p/embedded-developers

They can help you with additional questions about Intel Xeon D Embedded Processors.

Also, if you already know the FAE (Field Application Engineer) that corresponds to you, you can contact them to gather more details.  

Best regards,

Sergio S.

Intel Customer Support Technician

For firmware updates and troubleshooting tips, visit :https://intel.com/support/serverbios