Hi,

I'm unable to find any help for vtbwrun which will help in getting the QPI details. I want to check the Intersocket QPI of my application on Nehalem. When I run the vtbwrun -r I can get the "# IOH reads" in the QPI information. But what I want to find is the use of QPI links between CPU sockets(Intersocket QPI). How can I find this information using Intel performance tuning utility?

Below is the information that I can get using the Intel PMU. But I need the details like the QPI utilization between processors.

--- Intersocket QPI Utilization ---||--- Intersocket QPI Utilization ---
---------------------------------------||---------------------------------------
--- # Rd IOH: 1059345.0 ---||--- # Rd IOH: 2725103.0 ---
--- # Wr IOH: 404078.0 ---||--- # Wr IOH: 912623.0 ---

Thanks!
Amal