User Guide

Contents

Port Utilization

Metric Description

This metric represents a fraction of cycles during which an application was stalled due to Core non-divider-related issues. For example, heavy data-dependency between nearby instructions, or a sequence of instructions that overloads specific ports. Hint: Loop Vectorization - most compilers feature auto-Vectorization options today - reduces pressure on the execution ports as multiple elements are calculated with same uop.

Possible Issues

A significant fraction of cycles was stalled due to Core non-divider-related issues.

Tips

Use vectorization to reduce pressure on the execution ports as multiple elements are calculated with same uOp.

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