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Simple Performance Tools

This project is geared to server application developers or their power users seeking a quick way to test app-to-system resource efficiency. Speedometer and Overhead are two simple tools for Intel® Xeon® and Intel® Xeon Phi™ that allow a user to determine how well their application is using the machine and whether deeper investigation is required.

  • Overhead

    Overhead: How much time are you wasting? Installation and User’s Guide Introduction Even though an application is using CPU time, it may not be doing useful work. In particular, parallel applications often spend a lot of time in MPI or OpenMP runtime libraries, or in the kernel. This time is considered to be overhead because it detracts from the time spent actually computing. Overhead uses...

    By Larry Meadows on Sep 22, 2013
  • Speedometer

    Speedometer: How fast is your code? Installation and User’s Guide Introduction The available resources on a given system ultimately limit the performance of an application on that system. Untuned code often fails to come anywhere close to saturating any of the resources on a system, usually because it spends most of its time waiting for memory. After some tuning, an application will often...

    By Larry Meadows on Sep 22, 2013