1 Reply Latest reply on Dec 7, 2015 8:38 AM by mikec_intel

    Trying to find out the path uops are delivered to IDQ (Sandy Bridge-E)

    yamancak

      Hi,

       

      I am currently experimenting with some small asm sequences and investigating the performance event counters. I have a small loop consisting of a (add,add,mov,sub,jnb) sequence, being repeated x number of times.

      My initial guess was that I would be able to see the number of uops sent to the instruction dispatch queue (IDQ), could be observed by looking at the decoded icache (IDQ:DSB_UOPS) event. However, the results were not as I expected:

       

      IDQ:DSB_UOPS 15252

      IDQ:MITE_UOPS 4692

      UOPS_RETIRED 4000024538

      PAPI_TOT_CYC 1000237807

       

      Can anyone please point out where these uops are sent to the backend from, and which event I should check to observe that?

       

      Thanks,

      Yaman