usr/lib/Get-CpuCache.ps1
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function Get-CpuCache { [CmdletBinding()]param() begin { New-Enum LOGICAL_PROCESSOR_RELATIONSHIP { RelationProcessorCore RelationNumaNode RelationCache RelationProcessorPackage RelationGroup RelationAll = 0xffff } New-Enum PROCESSOR_CACHE_TYPE { CacheUnified CacheInstruction CacheData CacheTrace } New-Structure PROCESSORCORE { Byte Flags } New-Structure NUMANODE { UInt32 NodeNumber } New-Structure CACHE_DESCRIPTOR { Byte Level Byte Associativity UInt16 LineSize UInt32 Size PROCESSOR_CACHE_TYPE Type } New-Structure SYSTEM_LOGICAL_PROCESSOR_INFORMATION_UNION { PROCESSORCORE 'ProcessorCore 0' NUMANODE 'NumaNode 0' CACHE_DESCRIPTOR 'Cache 0' UInt64 'Reserved 8' } -Explicit New-Structure SYSTEM_LOGICAL_PROCESSOR_INFORMATION { UIntPtr ProcessorMask LOGICAL_PROCESSOR_RELATIONSHIP Relationship SYSTEM_LOGICAL_PROCESSOR_INFORMATION_UNION ProcessorInformation } New-Delegate kernel32 { bool GetLogicalProcessorInformation([buf, uint_]) } } process {} end { $bsz = 0 # first pass is required to retrieve real buffer size if (!$kernel32.GetLogicalProcessorInformation.Invoke($null, [ref]$bsz) -and !$bsz) { throw [InvalidOperationException]::new('Cannot retrieve buffer size') } $buf = [Byte[]]::new($bsz) if (!$kernel32.GetLogicalProcessorInformation.Invoke($buf, [ref]$bsz)) { throw [InvalidOperationException]::new('Internal error.') } (0..($bsz / ($sz = [SYSTEM_LOGICAL_PROCESSOR_INFORMATION]::GetSize()) - 1)).ForEach{ $slpi = ConvertTo-PointerOrStructure $buf[0..($sz - 1)] ( [SYSTEM_LOGICAL_PROCESSOR_INFORMATION] ) if ($slpi.Relationship -eq 2) { $slpi.ProcessorInformation.Cache } $buf = $buf[$sz..$buf.Length] } | Format-Table -AutoSize } } Export-ModuleMember -Function Get-CpuCache |