Intel Hybrid‑Core Mapper – PowerShell‑only

Map Task‑Manager CPU graphs to P‑, E‑, and LP‑E cores on Windows – no installs, no admin rights.

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✨ Features

• Differentiates all three Intel core types – Performance (P), Efficiency (E), and Low‑Power Efficiency (LP‑E) on Meteor Lake / Core Ultra.
• 100 % native – pure PowerShell + Win32 API (GetSystemCpuSetInformation).
• Zero footprint – runs in a stock Windows image; nothing to install or unblock.
• Works on every Intel hybrid CPU from 12th Gen (Alder Lake) to Core Ultra.
• Consistent, deterministic output – validated struct layout eliminates random values.

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Requirements

	Minimum
OS	Windows 10 21H1 or newer (EfficiencyClass and SchedulingClass exposed)
Shell	Windows PowerShell 5.x or PowerShell 7+ (x86 & x64)
Privileges	None – standard user session works

Note   AMD hybrid parts are not yet supported (different scheduler hints).

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How it works

1. Compiles ≈ 40 lines of C# at runtime with Add-Type.
2. Calls GetSystemCpuSetInformation twice to pull the complete CPU‑set list.
3. Deserialises each SYSTEM_CPU_SET_INFORMATION structure.
4. Uses two scheduler hints per logical CPU
   • EfficiencyClass → distinguishes P vs. non‑P
   • SchedulingClass → distinguishes LP‑E vs. E
5. Emits a neat table that maps Task‑Manager CPU graphs (0…n) to P / E / LP‑E.

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Usage

# default table
PS> .\Get‑HybridCoreMap.ps1

# raw objects for further processing
PS> .\Get‑HybridCoreMap.ps1 -Raw

# JSON for dashboards / logging
PS> .\Get‑HybridCoreMap.ps1 -Json | Out‑File coremap.json

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Example output (Core Ultra 7 155U – 2 P + 8 E + 2 LP‑E)

CPU CoreIndex CoreType EClass SClass
--- --------- -------- ------ ------
 0     0        P         1      2
 1     0        P         1      2
 2     2        E         0      1
 3     3        E         0      1
 4     4        E         0      1
 5     5        E         0      1
 6     6        E         0      1
 7     7        E         0      1
 8     8        E         0      1
 9     9        E         0      1
10    10        P         1      2
11    10        P         1      2
12    12       LP‑E       0      0
13    13       LP‑E       0      0

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Caveats

• Windows versions prior to 1903 lack the required scheduler hints.
• BIOS / firmware updates can renumber logical processors – rerun the script afterwards.
• Currently limited to Intel hybrid CPUs; AMD support is on the roadmap.

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License

MIT – use, modify, and distribute freely. Pull requests welcome!