Analizador de rendimiento Intel® VTune™

Problem accessing the sampling driver. The driver may need to be (re)started...

This error message is an indication of Intel® VTune™ Amplifier XE not being able to access the sampling driver when lightweight hotspot or any other event based sampling analysis types is selected.
  • Linux*
  • Analizador de rendimiento Intel® VTune™
  • Intel® VTune™ Amplifier XE
  • Use Instructions Retired Events to Evaluate Threading Methodology


    Challenge

    Evaluate instructions-retired data in conjunction with performance data to examine the correctness of threading methodology. The Instructions Retired processor event in the VTune™ Performance Analyzer is a key performance indicator. Instructions Retired can give you quick insight into possible performance problems in your application.

  • Microsoft Windows* (XP, Vista, 7)
  • Analizador de rendimiento Intel® VTune™
  • Multi-thread apps for Multi-Core
  • How to thread?
  • Performance analysis
  • Computación en paralelo
  • Tuning Strategies for World-Class Consumer Media Applications

    Introduction

    Build a better multimedia application, and the world will beat a path to your door. This article will help you define effective workloads for video encoding, scene detection and thumbnail display, debug using Intel® VTune™ Performance Analyzer and tune with a number of Intel® tools.



    View entire article (PDF)


  • Linux*
  • Microsoft Windows* (XP, Vista, 7)
  • Intel® Integrated Performance Primitives
  • Analizador de rendimiento Intel® VTune™
  • Gráficos
  • How to switch between Intel® VTune™ Performance Analyzer and Intel® PTU

    Switch between Intel VTune Performance Analyzer and Intel PTU is important. Regarding PTU documentation, PTU and VTune environements are not compatible. You must be sure to unload one before loading the other.
  • Linux*
  • Analizador de rendimiento Intel® VTune™
  • Intel VTune
  • VTune Performance Analyzer
  • Optimización
  • Páginas

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