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WDDM PresentStats - Present Statistics Test

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

Associated requirements

Device.Graphics.WDDM.DisplayRender.Base

See the device hardware requirements.

Platforms

Windows 7 (x64) Windows 7 (x86) Windows RT (ARM-based) Windows 8 (x64) Windows 8 (x86) Windows Server 2012 (x64) Windows Server 2008 R2 (x64) Windows RT 8.1 Windows 8.1 x64 Windows 8.1 x86 Windows Server 2012 R2

Expected run time

~60 minutes

Categories

Certification Functional

Type

Automated

 

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 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\

 

 

 

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