https://community.intel.com/t5/Analyzers/Bus-Bandwidth-Decomposition/m-p/906375#M5636 I'm seeing ~80% bus utilization (2*BUS_TRANS_ANY.ALL_AGENTS/CPU_CLK_UNHALTED.BUS) in an application on a Core 2 Clovertown, and want to understand what that traffic is composed of. What events in BUS_TRANS_* should add up to BUS_TRANS_ANY.ALL_AGENTS (within sampling error)? MEM seems to cover quite a lot of it, but what else is required? I'm also a bit confused about SELF, ALL_CORES.THIS_AGENT, and ALL_AGENTS.<BR /><BR />Thanks,<BR />Matt<BR /> Fri, 08 Aug 2008 21:04:46 GMT Matt_F_1 2008-08-08T21:04:46Z https://community.intel.com/t5/Analyzers/Bus-Bandwidth-Decomposition/m-p/906375#M5636 I'm seeing ~80% bus utilization (2*BUS_TRANS_ANY.ALL_AGENTS/CPU_CLK_UNHALTED.BUS) in an application on a Core 2 Clovertown, and want to understand what that traffic is composed of. What events in BUS_TRANS_* should add up to BUS_TRANS_ANY.ALL_AGENTS (within sampling error)? MEM seems to cover quite a lot of it, but what else is required? I'm also a bit confused about SELF, ALL_CORES.THIS_AGENT, and ALL_AGENTS.<BR /><BR />Thanks,<BR />Matt<BR /> Fri, 08 Aug 2008 21:04:46 GMT https://community.intel.com/t5/Analyzers/Bus-Bandwidth-Decomposition/m-p/906375#M5636 Matt_F_1 2008-08-08T21:04:46Z