WDDM PresentStats - Present Statistics Test

  • Article

This automated test verifies that drivers work correctly with the operating system to provide reliable presentation statistics to applications.

Specifically, this test verifies that the following scenarios work:

  • For multihead devices, presentations on 1 swap chain do not affect the present IDs for other swap chains.

  • The QPC times reported for v-blanks increase at a rate approximately equal to the refresh rate of the monitor that is connected to the corresponding output head.

  • GPU-bound applications that spin calling the present API (for flipping) should never miss a frame.

  • The latency reported by the presentation statistics increase linearly with the maximum number of queued presents (for GPU-bound applications).

  • v-blank IDs reported through the present statistics API agree with the WaitForVerticalBlank API.

  • Present statistics work for immediate flips, and flips occur during a vertical blank.

Test details

   
Specifications
  • Device.Graphics.WDDM.DisplayRender.Base
Platforms
  • Windows 10, client editions (x86)
  • Windows 10, client editions (x64)
  • Windows Server 2016 (x64)
  • Windows 10, client editions (Arm64)
Supported Releases
  • Windows 10
  • Windows 10, version 1511
  • Windows 10, version 1607
  • Windows 10, version 1703
  • Windows 10, version 1709
  • Windows 10, version 1803
  • Windows 10, version 1809
  • Windows 10, version 1903
  • Next update to Windows 10
Expected run time (in minutes) 60
Category Compatibility
Timeout (in minutes) 3600
Requires reboot false
Requires special configuration false
Type automatic

 

Additional documentation

Tests in this feature area might have additional documentation, including prerequisites, setup, and troubleshooting information, that can be found in the following topic(s):

Running the test

Before you run the test, complete the test setup as described in the test requirements: Graphic Adapter or Chipset Testing Prerequisites.

Troubleshooting

For generic troubleshooting of HLK test failures, see Troubleshooting Windows HLK Test Failures.

For troubleshooting information, see Troubleshooting Device.Graphics Testing.

More information

Command syntax

Command option Description

Presentstats.exe

Runs the test job..

 

File list

File Location

Configdisplay.exe

<[testbinroot]>\nttest\windowstest\tools\

Presentstats.exe

<[testbinroot]>\nttest\

TDRWatch.exe

<[testbinroot]>\nttest\windowstest\graphics\

 

Parameters

Parameter name Parameter description
LLU_NetAccessOnly LLU Name of net user
ConfigDisplayCommandLine Custom Command Line for ConfigDisplay. Default: logo
TDRArgs /get or /set