Intel® VTune™ Profiler User Guide

User Guide

Contents

Accelerators Analysis Group

The
Accelerators
 group introduces analysis types that monitor CPU, GPU and FPGA usage for your application/system.
  • Use the GPU Offload analysis to profile applications that use a Graphics Processing Unit (GPU) for rendering, video processing, and computations. This analysis type helps you identify whether your application is CPU or GPU bound.
  • For GPU-bound applications, use the GPU Compute/Media Hotspots (preview) analysis type to see the GPU kernel execution per code line. Identify performance issues caused by memory latency or inefficient kernel algorithms.
  • With the CPU/FPGA Interaction analysis, you can explore FPGA utilization for each FPGA accelerator and identify the most time-consuming FPGA computing tasks.
A
PREVIEW FEATURE
 may or may not appear in a future production release. While a preview feature is available for your use, feedback about its usefulness will determine its availability in future releases. Data collected with a preview feature is not guaranteed to be compatible with future releases.
Prerequisites:
  • Install the sampling driver for hardware event-based sampling collection types. For Linux* and Android* targets, if the sampling driver is not installed,
    VTune
    Profiler
     can work on Perf* (driverless collection).
  • To enable system-wide and uncore event collection, use root or sudo to set
    /proc/sys/kernel/perf_event_paranoid
     to
    0
    . 
    $ echo 0>/proc/sys/kernel/perf_event_paranoid

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.