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Hybrid Cache Performance Test (LOGO)

  • Article

This test validates the performance of the cache by doing the following scenarios:

  • Sequential Read

  • Random Read (Queue Depth=1)

  • Random Read (Queue Depth=8)

  • Random Write (Queue Depth=1)

  • Random Write (Queue Depth=8)

  • Sequential Write

Test details

   
Specifications
  • Device.Storage.Hd.Sata.HybridInformation.BasicFunction
Platforms
  • Windows 10, client editions (x86)
  • Windows 10, client editions (x64)
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) 30
Category Benchmark
Timeout (in minutes) 1800
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: Hard Disk Drive Testing Prerequisites.

Troubleshooting

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

For troubleshooting information, see Troubleshooting Device.Storage Testing.

More information

This test does the following:

  1. Disables the cache.

  2. Enables the cache. This effectively should clear out the entire cache.

  3. Pin in data starting at offset 0 for a length of 4 GB with priority. This pin will be with reads. Additionally, after every GB the test waits until the hybrid log pages have stopped changing in a certain time frame. This is to allow the device to sync data into the cache so that the entire range gets pinned into the drive.

  4. Changes the priority of all future I/O to the drive to not have any priority.

  5. Start the speed test.

Parameters

Parameter name Parameter description
WDKDeviceID Instance path of device to test
LLU_NetAccessOnly User account for accessing test file share.
LLU_LclAdminUsr User account for running the test.
StorageDriveNumber Drive number of device to test
Verbosity Verbosity of log output. 0 is least verbose, 4 is most verbose
TargetPriority Hybrid priority
Offset LBA offset
Length File length for the test
DeviceTag Device tag
DeviceID Drive number
IOOperation Read or Write