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HAL Test

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Type: Automated Test

Overview

The HAL Test verifies high precision event timer (HPET) hardware for logo requirements.

This test verifies that:

  • The system that you are testing is using an HPET device.

  • The HPET frequency is between 10 MHz and 500 MHz.

  • The timer does not glitch or run backwards.

Note  This test applies to both client and server.

Details

You can run this test manually by using the haltest.exe timers /logo command. This command is the only supported command line for logo testing. 

 

To debug test failures, you need complete log files. This test will generate a log file called haltest.wtl. Be sure to include this file with any questions about failing results. You might also need to include a kernel debugger remote session.

 

The test succeeds or fails based on the pass and failure count rollup that appears at the end of the haltest.wtl log file that is created when you run haltest.exe timers /logo. Each subtest within the log file must pass for the overall result to be "pass." 

 

For more information, see the Guidelines For Providing Multimedia Timer Support topic on the Microsoft Windows Hardware Developer Central (WHDC) Web site and IA-PC HPET (High Precision Event Timers) Specification.

Run Time: 5-10 minutes

System Restart Required: No

Supported operating systems for Logo or Signature testing:

  • Windows 7
  • Windows Server 2008 R2
  • Windows Vista

Requirements

Software Requirements

The test tool requires the following software:

  • Supported operating system (see list above).
  • Software components included with the device that is being tested.

Hardware Requirements

The test tool requires the following hardware:

  • Device to be tested

  • Computer that meets the minimum software requirements

  • Windows keyboard

  • Two-button pointing device

  • Color display monitor capable of at least 1024 by 768 resolution, 32-bits per pixel, 60 Hz

  • Hard drive with a minimum of 20 GB available on partition C:

Processor

  • x86

  • x64

Running HAL Test

Install the test, start the test, wait for the test to finish, and then examine haltest.wtl for results. 

Command Syntax

Command option Description
haltest timers /logo Timers only for HPET validation

Cautions

You must set the system time increment to the default when the test is run. Otherwise, the test will fail. Applications such as Microsoft Windows Media Player or other multimedia applications will interfere with the test.

Troubleshooting

If necessary, dump the stack to see if the test is stuck. It may be possible for the test to hang if the HPET or any other hardware fails to generate interrupts when expected. This is highly unlikely.

Test Assertions

HPET Description and Performance Counter frequency requirment. HPET Description and Performance Counter frequency requirment.
Test Assertion GUID: c36d304a-ac81-4698-ba64-b8d1178b2586

Windows Logo Program:  Anonymous

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Built on December 10, 2009