https://community.intel.com/t5/Software-Tuning-Performance/about-QPI-cmd/m-p/1119059#M6158 <P>This forum focuses on software (and how it operates on hardware).</P> <P>However, I don't think that the details of QPI are publicly documented. Therefore, my recommendation is to contact your Intel representative and ask for documentation.</P> Thu, 01 Sep 2016 09:02:38 GMT Thomas_W_Intel 2016-09-01T09:02:38Z https://community.intel.com/t5/Software-Tuning-Performance/about-QPI-cmd/m-p/1119058#M6157 <P>i'm working on QPI interconnect system design, i'm puzzle about how the processor determine the qpi command(rddata, rdinvown, etc..) for a data access? any reference doc?</P> <P>for a certain cache line, if it is accessed by rdcode, is it possible this cache line accessed by rddata/rdinvown/etc... in the future?</P> Thu, 01 Sep 2016 07:37:02 GMT https://community.intel.com/t5/Software-Tuning-Performance/about-QPI-cmd/m-p/1119058#M6157 Yongbo_C_ 2016-09-01T07:37:02Z https://community.intel.com/t5/Software-Tuning-Performance/about-QPI-cmd/m-p/1119059#M6158 <P>This forum focuses on software (and how it operates on hardware).</P> <P>However, I don't think that the details of QPI are publicly documented. Therefore, my recommendation is to contact your Intel representative and ask for documentation.</P> Thu, 01 Sep 2016 09:02:38 GMT https://community.intel.com/t5/Software-Tuning-Performance/about-QPI-cmd/m-p/1119059#M6158 Thomas_W_Intel 2016-09-01T09:02:38Z