Bring the expertise of a performance analyst to your desktop!

The Intel VTune Performance Analyzer allows you to reach higher levels of performance for software running on the latest Intel processors, including the new Intel Pentium 4 processor. The latest version of the VTune analyzer incorporates a number of improvements that make performance tuning easier and more efficient.

What's New in Intel VTune Performance Analyzer 6.1

• Hyperthreading support -- With VTune analyzer 6.1, this support includes visibility into the threads running on the Hyperthreaded Intel processors
• Itanium 2 support
• Enhancements to Tuning Asst --- TheTuning Assistant provides tuning advice based on source code, operating system counters, and Pentium III processor and Pentium 4 processor counter-based data. It includes tuning advice for Counter Monitor, Java, and Pentium 4 processors with Hyper-Threading technology

Automatic Hotspot Analysis (AHA) is a new expert system technology in the Intel Tuning Assistant in VTune 6.1. AHA technology unlocks the power of Intel's latest Pentium 4 and Xeon Processors, by analyzing Event Based Sampling data to quickly identify both what optimizations you should make, and where in your code to make them, to take advantage of Hyper-Threading technology and other advanced performance features of Intel's latest processors -- speeding up your code by up to an additional 40% (beyond the speedup you can achieve through algorithmic improvements alone).

Summary of the VTune analyzer features and benefits

Feature	Benefit
Time and event-based, system-wide sampling	Low-overhead profiling minimizes perturbations of the application during analysis No instrumentation or recompilation of code required
Call graph profiling	Displays pictorial view of the program flow to quickly identify critical functions and call sequences
Code Coach	Obtain source-level tuning advice for multiple processors (including the Pentium 4 processor) and multiple languages (including C/C++, Fortran, Java* and assembly language)
Hotspot analysis	Helps you identify potential performance problems in modules, classes and functions
Event ratio displays	Visualize detailed performance information on combinations of events by automatically computing the ratio of two event counters
Integrated source view	Combines, for each line of code, the number of samples collected as well as the call count and call time for each function
Context-sensitive online descriptions	With the VTune analyzer, help is only a mouse-click away. The VTune analyzer's online help provides context-sensitive descriptions of the processor instruction set and intrinsics, including how-to procedures, instructions and intrinsics for the Pentium 4 processor. Right-clicking anywhere on the graphical user interface brings up context-sensitive online help descriptions and tips.