AutoMemoryBenchmark
This test consists of multiple scenarios where a driver is evaluated for memory being consumed in the scenario. The benchmark aggregates results from different memory metrics to arrive to a final score for the scenario. This score is the key metric developer should optimize and the metric which is evaluated for Windows Hardware certification.
The memory benchmark is currently comprised of the following six scenarios:
Idle
Present
Textures
Buffers
Surfaces
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For each of the rendering scenarios (all scenarios except Idle), the goals for the scenario are established such that:
2MB allowed for OS overhead.
+2MB allowed for driver overhead per GPU in a link for x86 and x64 systems, +1MB per GPU in a link allowed for Arm systems. The number of linked GPUs on a system is determined and multiplied by the system-determined size per GPU to give the total driver overhead allowed.
+Size of surfaces explicitly created by application + 7.5% for alignment/padding in the case of non-power of 2 surfaces.
+4KB overhead per surface created on 32-bit systems, +8KB overhead per surface on 64-bit systems.
Except for the Present scenario, the rendering scenario targets are rounded to the next half-megabyte boundary.
Test details
Specifications |
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Platforms |
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Supported Releases |
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Expected run time (in minutes) | 2 |
Category | Benchmark |
Timeout (in minutes) | 120 |
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: WDTF System Fundamentals Testing Prerequisites.
Troubleshooting
For generic troubleshooting of HLK test failures, see Troubleshooting Windows HLK Test Failures.
A stack that does not go all the way to thread creation indicates that ETW is having a problem walking the stack when the event is fired. ETW will log a maximum of 96 stack frame, but that limit is rarely hit. Typically the problem is a driver compiled with FPO optimization causing the stack walk to end abruptly.
If you do not have a stack, ensure that you are running the benchmark with the -details option.
For additional troubleshooting information, see Troubleshooting System Fundamentals Testing.
More information
Command syntax
Command option | Description |
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AutoShell.exe Memorywlk.xml |
Runs the test for WHLK |
Note
For command line help for this test binary, type /h.
File list
File | Location |
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AutoShell.exe |
[WTT\TestBinRoot]\nttest\windowstest\graphics\perfx2\ |
Memorywlk.xml |
[WTT\TestBinRoot]\nttest\windowstest\graphics\perfx2\ |
Perl.exe |
[WTT\OSBinRoot]\Perl\perl.exe |
TestX.man |
[WTT\TestBinRoot]\nttest\windowstest\graphics\perfx2\ |
setup.pl |
[WTT\TestBinRoot]\nttest\windowstest\graphics\perfx2\MemoryBenchmark |