User Guide


Accelerators Group

group introduces analysis types that monitor CPU, GPU and FPGA usage for your application/system.
  • GPU Offload (preview) is targeted for applications using a Graphics Processing Unit (GPU) for rendering, video processing, and computations. It helps you identify whether your application is CPU or GPU bound.
  • GPU Compute/Media Hotspots (preview) is targeted for GPU-bound applications and helps analyze GPU kernel execution per code line and identify performance issues caused by memory latency or inefficient kernel algorithms.
  • CPU/FPGA Interaction (preview) analysis explores FPGA utilization for each FPGA accelerator and identifies the most time-consuming FPGA computing tasks.
may or may not appear in a future production release. It is available for your use in the hopes that you will provide feedback on its usefulness and help determine its future. Data collected with a preview feature is not guaranteed to be backward compatible with future releases. Please send your feedback to
  • Install the sampling driver for hardware event-based sampling collection types. For Linux* and Android* targets, if the sampling driver is not installed,
    can work on Perf* (driverless collection).
  • To enable system-wide and uncore event collection, use root or sudo to set
    $ echo 0>/proc/sys/kernel/perf_event_paranoid

Product and Performance Information


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