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WDDM DMA Split (Force Split Points)

  • Article

This automated test verifies that whenever a Direct Memory Access (DMA) buffer references multiple resources, the video driver will insert enough split points for this buffer to be run in parts. The test puts the operating system into a mode that causes it to always use all split points that the driver specifies. Video drivers must not cause the system to crash or hang during this test.

This topic applies to the following test jobs:

  • WDDM DMA Split (Force Split Points)

  • WDDM DMA Split (Force Split Points) (WoW64)

Test details

   
Specifications
  • Device.Graphics.AdapterRender.D3D10Core.D3D10CorePrimary
  • 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) 20
Category Compatibility
Timeout (in minutes) 1200
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

DMAsplit.exe

Runs both the WDDM DMA Split (Force Split Points) test job and the WDDM DMA Split (Force Split Points) (WoW64) test job.

 

File List

File Location

Configdisplay.exe

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

DMAsplit.exe

<[testbinroot]>\nttest\

TDRWatch.exe

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

 

Parameters

Parameter name Parameter description
LLU_NetAccessOnly LLU Name for net user
Monitor Display device to test against
ConfigDisplayCommandLine Customer Command Line for ConfigDisplay. Defalut: logo
TDRArgs /get or /set