Intel® VTune™ Profiler User Guide

User Guide

Contents

MCDRAM Cache Bandwidth Bound

Metric Description

This metric represents percentage of elapsed time the system spent with high MCDRAM Cache bandwidth utilization. Review the Bandwidth Utilization Histogram to estimate the scale of the issue.

Possible Issues

The system spent a significant percentage of elapsed time with high MCDRAM Cache bandwidth utilization. Review the Bandwidth Utilization Histogram to estimate the scale of the issue. Consider improving data locality and L1/L2 cache reuse.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804