Intel® Graphics Performance Analyzers for Ubuntu* Host

User Guide

  • 2020R2
  • 06/26/2020
  • Public Content
Contents

Indexed Draw Calls

The
Indexed Draw Calls
 metric represents the number of indexed draw calls being issued from your application per frame.
Improving Performance
  • When the
    Indexed Draw Calls
     metric is high, see if you can optimize your application’s geometry to better batch vertices into fewer draw calls, specifically those that use
    glDrawElements
     or its modifications.
  • When the
    Indexed Draw Calls
     metric is significantly lower than the
    Draw Calls
     metric, see if you can optimize your application to use indexed geometry passed to the
    glDrawElements
     API or its modifications, rather than
    glDrawArrays
     and its modifications. Additionally, check the
    Vertex Count
     and
    Indexed Vertex Count
     metrics to see how much data is being drawn without indexing to estimate the impact of such optimization.

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