https://community.intel.com/t5/Software-Tuning-Performance/PCM-pcm-pcie-utility/m-p/936573#M1765 <P><A href="http://software.intel.com/en-us/user/946204">Adrian C.</A>&nbsp;posted:</P> <P><EM><EM>&nbsp; &nbsp; &nbsp;&nbsp;</EM>Hi!</EM></P> <P><EM><EM>&nbsp; &nbsp; &nbsp;&nbsp;</EM>Would you please document what pcm-pcie is actually reporting? I'd like to understand how DDIO is impacting my system.</EM></P> <P><EM><EM>&nbsp; &nbsp; &nbsp;&nbsp;</EM>Thanks!</EM></P> <P><EM>&nbsp; &nbsp; &nbsp; -adrian</EM></P> <P>pcm-pcie outputs help on the counted metrics if run without parameters. It counts PCIE transfer events and outputs them, optionally with a bandwidth estimation per socket (-B flag). Non-zero&nbsp;PCIeItoM&nbsp;event counts indicate DDIO is active.</P> <P>--</P> <P>Roman</P> <P></P> <P></P> <P></P> Mon, 23 Sep 2013 14:21:58 GMT Roman_D_Intel 2013-09-23T14:21:58Z https://community.intel.com/t5/Software-Tuning-Performance/PCM-pcm-pcie-utility/m-p/936573#M1765 <P><A href="http://software.intel.com/en-us/user/946204">Adrian C.</A>&nbsp;posted:</P> <P><EM><EM>&nbsp; &nbsp; &nbsp;&nbsp;</EM>Hi!</EM></P> <P><EM><EM>&nbsp; &nbsp; &nbsp;&nbsp;</EM>Would you please document what pcm-pcie is actually reporting? I'd like to understand how DDIO is impacting my system.</EM></P> <P><EM><EM>&nbsp; &nbsp; &nbsp;&nbsp;</EM>Thanks!</EM></P> <P><EM>&nbsp; &nbsp; &nbsp; -adrian</EM></P> <P>pcm-pcie outputs help on the counted metrics if run without parameters. It counts PCIE transfer events and outputs them, optionally with a bandwidth estimation per socket (-B flag). Non-zero&nbsp;PCIeItoM&nbsp;event counts indicate DDIO is active.</P> <P>--</P> <P>Roman</P> <P></P> <P></P> <P></P> Mon, 23 Sep 2013 14:21:58 GMT https://community.intel.com/t5/Software-Tuning-Performance/PCM-pcm-pcie-utility/m-p/936573#M1765 Roman_D_Intel 2013-09-23T14:21:58Z