ReadDoubleBuffering
Applies To: Windows 8, Windows Server 2012
Important
This setting has been deprecated in Windows® 8.1. The information about this deprecated setting is provided for reference only.
The ReadDoubleBuffering setting works with other settings in the Microsoft-Windows-SecureStartup-FilterDriver component to optimize BitLocker settings for PCs with hardware architectures such as System on a Chip (SoC). Do not use these settings for standard 32-bit or 64-bit hardware architectures.
These settings are intended for OEM manufacturing only. For specific guidance on using these settings, contact Microsoft.
Values
0 |
Read double-buffering is disabled. This is the default value. |
1 |
Read double-buffering is enabled. |
Valid Configuration Passes
offlineServicing
specialize
auditSystem
oobeSystem
Parent Hierarchy
Microsoft-Windows-SecureStartup-FilterDriver | ReadDoubleBuffering
Applies To
For a list of the Windows editions and architectures that this component supports, see Microsoft-Windows-SecureStartup-FilterDriver.
XML Example
The following example specifies recommended values for Bitlocker optimizations on an x86 System on a Chip.
<component name="Microsoft-Windows-SecureStartup-FilterDriver" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="https://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<BytesDecryptedInDiskRequestOverhead>262144</BytesDecryptedInDiskRequestOverhead>
<InPlaceCrypto>0</InPlaceCrypto>
<MaxCryptoRequestsPerIo>4</MaxCryptoRequestsPerIo>
<MaxDecryptRequests>0</MaxDecryptRequests>
<MaxEncryptRequests>2</MaxEncryptRequests>
<ModifiedWriteMaximum>4</ModifiedWriteMaximum>
<ReadDoubleBuffering>0</ReadDoubleBuffering>
<SlicedEncryptionInPlace>1</SlicedEncryptionInPlace>
<SlicedEncryptionMinSize>524288</SlicedEncryptionMinSize>
<SlicedEncryptionRequestsMax>1</SlicedEncryptionRequestsMax>
<WriteIoAggregateMaxSize>1048576</WriteIoAggregateMaxSize>
<WriteIoAggregateMinSize>1048576</WriteIoAggregateMinSize>
<WriteSubrequestLength>524288</WriteSubrequestLength>
</component>