https://community.intel.com/t5/Software-Tuning-Performance/Want-to-count-L2-data-cache-misses-without-prefetching/m-p/1083616#M5530 <P>I was using PAPI to measure L2 data cache misses but the measurement seems to be affected by data prefetching. I am not sure whether my CPU provides a way to do measure cache misses without prefetching. If so, how can I do it?</P> <P><SPAN style="font-size: 1em; line-height: 1.5;">CPU model: Intel(R) Xeon(R) CPU E5-4620 0 @ 2.20GHz (45)</SPAN></P> <P>&nbsp;</P> Thu, 02 Jun 2016 20:19:11 GMT Wei_W_3 2016-06-02T20:19:11Z https://community.intel.com/t5/Software-Tuning-Performance/Want-to-count-L2-data-cache-misses-without-prefetching/m-p/1083616#M5530 <P>I was using PAPI to measure L2 data cache misses but the measurement seems to be affected by data prefetching. I am not sure whether my CPU provides a way to do measure cache misses without prefetching. If so, how can I do it?</P> <P><SPAN style="font-size: 1em; line-height: 1.5;">CPU model: Intel(R) Xeon(R) CPU E5-4620 0 @ 2.20GHz (45)</SPAN></P> <P>&nbsp;</P> Thu, 02 Jun 2016 20:19:11 GMT https://community.intel.com/t5/Software-Tuning-Performance/Want-to-count-L2-data-cache-misses-without-prefetching/m-p/1083616#M5530 Wei_W_3 2016-06-02T20:19:11Z https://community.intel.com/t5/Software-Tuning-Performance/Want-to-count-L2-data-cache-misses-without-prefetching/m-p/1083617#M5531 <P>Did you read <A href="https://software.intel.com/en-us/articles/disclosure-of-hw-prefetcher-control-on-some-intel-processors" target="_blank">https://software.intel.com/en-us/articles/disclosure-of-hw-prefetcher-control-on-some-intel-processors</A> and the like?</P> Thu, 02 Jun 2016 21:13:39 GMT https://community.intel.com/t5/Software-Tuning-Performance/Want-to-count-L2-data-cache-misses-without-prefetching/m-p/1083617#M5531 TimP 2016-06-02T21:13:39Z