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How to test CPU Power Management?

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Joined
Dec 23, 2011
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172
Motherboard
HP ProBook 430 G6
CPU
i5-8265U
Graphics
UHD 620, 1920x1080
Mac
  1. MacBook Pro
Mobile Phone
  1. iOS
I'm trying to figure out if CPU Power management works on my laptop. I do this like that:

Code:
$ sudo mkdir /kexts
skylake:Downloads antonio$ sudo cp -R AppleIntelInfo.kext /kexts/
skylake:Downloads antonio$ sudo kextutil /kexts/AppleIntelInfo.kext
Kext with invalid signatured (-67062) allowed: <OSKext 0x7fc78f542230 [0x7fff928538e0]> { URL = "file:///kexts/AppleIntelInfo.kext/", ID = "com.pikeralpha.driver.AppleIntelInfo" }
Code Signing Failure: not code signed
Disabling KextAudit: SIP is off

After this I'm looking for changes in dat file:

Code:
$ sudo tail -f /tmp/AppleIntelInfo.dat
CPU P-States [ (13) 19 37 ] iGPU P-States [ ]
CPU C3-Cores [ 3 4 5 ]
CPU P-States [ (10) 13 19 37 ] iGPU P-States [ ]
CPU C3-Cores [ 2 3 4 5 ]
CPU P-States [ 10 (13) 18 19 37 ] iGPU P-States [ (18) ]
CPU C3-Cores [ 0 1 2 3 4 5 7 ]
CPU P-States [ (10) 12 13 18 19 37 ] iGPU P-States [ 18 ]
CPU P-States [ (10) 12 13 15 18 19 37 ] iGPU P-States [ 18 ]
CPU P-States [ 10 12 (13) 15 18 19 22 37 ] iGPU P-States [ (18) ]
CPU C3-Cores [ 0 1 2 3 4 5 6 7 ]
CPU P-States [ 10 12 (13) 14 15 18 19 22 37 ] iGPU P-States [ CPU P-States [ (10) 12 13 14 15 18 19 20 22 37 ] iGPU P-States [ 18 ]
CPU P-States [ 10 12 (13) 14 15 18 19 20 21 22 37 ] iGPU P-States [ 18 ]
CPU P-States [ (10) 12 13 14 15 17 18 19 20 37 18 CPU P-States [ 10 12 13 14 15 16 17 18 19 20 21 22 (37) ] iGPU P-States [ 18 CPU P-States [ (10) 12 13 14 15 16 17 18 19 20 CPU P-States [ 10 12 13 14 15 16 17 18 19 20 21 22 23 (34) CPU P-States [ 10 12 13 14 15 16 17 18 19 20 21 22 23 34 37 (38) ] iGPU P-States [ (18) ]
CPU P-States [ 10 12 (13) 14 15 16 17 18 19 20 21 22 23 27 34 37 CPU P-States [ (10) 12 13 14 15 16 17 18 19 20 21 22 23 25 27 34 37 38 ] iGPU P-States [ 18 ]

However I'm not sure what does it mean? Does it mean that power management works?
 
Joined
Feb 24, 2017
Messages
56
Motherboard
Dell Inspiron 3537
CPU
Core i7 4500U
Graphics
Intel HD 4400,Radeon HD 8670M, 1366x768
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Download and install the Intel Power Gadget and start a resource hungry app if you will see the charts going up and down it means it is working correctly. It also shows the GPU power management for that I would start a 3D game and see if it changes. That did it for me.
 
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