Latency Performance Counters Are Not Accurate - AMD 3200 - Athlon 64 2.0 GHz Processor Manual

Revision Guide for AMD Family h Models h- Fh Processors Rev October

Latency Performance Counters Are Not Accurate

Description
Latency performance counters NBPMCx E through NBPMCx E are not accurate when L speculative miss
prefetching is enabled D F x B b Extended Memory Controller Configuration Low SpecPrefDis
Potential Effect on System
Performance monitoring software cannot accurately measure latency events The reported latency may greatly
exceed the actual latency in some instances
Suggested Workaround
No workaround is recommended
Performance monitoring software may set D F x B b to collect accurate latency values This
workaround has an impact to overall system performance
Fix Planned
No fix planned
Product Errata