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Merge pull request #10 from itslightmind/main
Added a Generate CPU Table script
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# PowerShell script to generate a CPU Affinity table for Windows environments. | ||
# Can be run directly in a Powershell Shell. So no need to run it as .ps1, just copy and paste it. | ||
# Utilizes Win32_Processor class to fetch CPU details and calculates thread affinity. | ||
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# Retrieve CPU information. | ||
$cpuInfo = Get-WmiObject -Class Win32_Processor | ||
$totalCores = $cpuInfo.NumberOfCores | ||
$totalThreads = $cpuInfo.NumberOfLogicalProcessors | ||
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# Initialize StringBuilder for output formatting. | ||
$outputBuilder = New-Object System.Text.StringBuilder | ||
$outputBuilder.AppendLine(":: Affinity table for $($cpuInfo.Name) with Hyperthreading") | ||
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# Define a function to format affinity values into bitmasks. | ||
Function Format-BitMask ($affinityValue) { | ||
$bitMask = [Convert]::ToString($affinityValue, 2).PadLeft(8, '0') | ||
return $bitMask.Length -gt 8 ? $bitMask.Insert($bitMask.Length - 8, ' ') : $bitMask | ||
} | ||
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# Initialize variables for data collection and formatting. | ||
$maxCoreThreadLength = $maxValueLength = $maxBitMaskLength = 0 | ||
$coreThreadInfo = @() | ||
$valueInfo = @() | ||
$bitMaskInfo = @() | ||
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# Determine the starting index for hyperthreaded cores. | ||
$hyperthreadedStartIndex = $totalCores / 2 | ||
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# Collect and format data for each thread. | ||
for ($i = 0; $i -lt $totalThreads; $i++) { | ||
$affinityValue = 1 -shl $i | ||
$formattedBitMask = Format-BitMask -affinityValue $affinityValue | ||
$coreType = if ($i -lt $totalCores) { "P-Core" } else { "E-Core" } | ||
$threadID = if ($coreType -eq "P-Core" -and $i -ge $hyperthreadedStartIndex) { "$i`T" } else { "$i" } | ||
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$coreThreadInfo += "$coreType $threadID" | ||
$valueInfo += $affinityValue.ToString() | ||
$bitMaskInfo += $formattedBitMask | ||
} | ||
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# Compute maximum lengths for table formatting. | ||
$maxCoreThreadLength = ($coreThreadInfo | Measure-Object -Property Length -Maximum).Maximum | ||
$maxValueLength = ($valueInfo | Measure-Object -Property Length -Maximum).Maximum | ||
$maxBitMaskLength = ($bitMaskInfo | Measure-Object -Property Length -Maximum).Maximum | ||
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# Construct the header for the affinity table. | ||
$header = "Thread #".PadRight($maxCoreThreadLength) + " = " + "Value".PadRight($maxValueLength) + " = BitMask" | ||
$outputBuilder.AppendLine(":: $header") | ||
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# Build the table with aligned data. | ||
for ($i = 0; $i -lt $totalThreads; $i++) { | ||
$outputBuilder.AppendLine(":: $($coreThreadInfo[$i].PadRight($maxCoreThreadLength)) = $($valueInfo[$i].PadRight($maxValueLength)) = $($bitMaskInfo[$i].PadRight($maxBitMaskLength))") | ||
} | ||
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# Output the formatted table. | ||
$outputBuilder.ToString() |
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:: Affinity table for Intel i7-13700k Processor with Hyperthreading | ||
:: Thread # = Value = BitMask | ||
:: P-Core 0 = 1 = 00000001 | ||
:: P-Core 1 = 2 = 00000010 | ||
:: P-Core 2 = 4 = 00000100 | ||
:: P-Core 3 = 8 = 00001000 | ||
:: P-Core 4 = 16 = 00010000 | ||
:: P-Core 5 = 32 = 00100000 | ||
:: P-Core 6 = 64 = 01000000 | ||
:: P-Core 7 = 128 = 10000000 | ||
:: P-Core 8T = 256 = 1 00000000 | ||
:: P-Core 9T = 512 = 10 00000000 | ||
:: P-Core 10T = 1024 = 100 00000000 | ||
:: P-Core 11T = 2048 = 1000 00000000 | ||
:: P-Core 12T = 4096 = 10000 00000000 | ||
:: P-Core 13T = 8192 = 100000 00000000 | ||
:: P-Core 14T = 16384 = 1000000 00000000 | ||
:: P-Core 15T = 32768 = 10000000 00000000 | ||
:: E-Core 16 = 65536 = 100000000 00000000 | ||
:: E-Core 17 = 131072 = 1000000000 00000000 | ||
:: E-Core 18 = 262144 = 10000000000 00000000 | ||
:: E-Core 19 = 524288 = 100000000000 00000000 | ||
:: E-Core 20 = 1048576 = 1000000000000 00000000 | ||
:: E-Core 21 = 2097152 = 10000000000000 00000000 | ||
:: E-Core 22 = 4194304 = 100000000000000 00000000 | ||
:: E-Core 23 = 8388608 = 1000000000000000 00000000 |