Intel® VTune™ Profiler User Guide

User Guide

Contents

performance-snapshot
 Command Line Analysis

Use Performance Snapshot when you want to see a summary of issues affecting your application. This analysis also includes recommendations for other analysis types that you can run next for a deeper investigation.

Syntax

vtune
 -collect performance-snapshot [-knob <
knobName=knobValue
>] [--] <
target
>
Knobs:
  • Collect the data required to compute memory bandwidth.
    Default value :
    false
    Possible values :
    true
     |
    false
  • Evaluate maximum achievable local DRAM bandwidth before starting the collection. This data is used to scale bandwidth metrics on the timeline and calculate thresholds.
    Default value :
    true
    Possible values :
    true
     |
    false
For the most current information on available knobs (configuration options) for Performance Snapshot analysis, enter:
vtune
 -help collect performance-snapshot
Example
This example shows how to run Performance Snapshot on a Linux*
myApplication
 application: 
vtune -collect performance-snapshot -- /home/test/myApplication

What's Next

When the data collection is complete, do one of the following to view the result:

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