Doesn't look like working at all

[axxonadmin]

High Sierra,

Several screens of errors after running [CatalinaAndBelowInstall.command]
The script tries to run kmutil at the end, but there's no such utility in High Sierra. Of course it doesn't load any kext

[mndhvn]

It shouldn't make a difference whether kmutil runs on older versions because kextutil runs anyway in the script. I will remove it for clarity though.

Try manually running sudo kextutil -v /Library/Extensions/TurboMac.kext, and post the output here. I assume it doesn't show up when you run sudo kextstat | grep TurboMac, but double-check just to be sure.

Telling me what hardware you're running will also help.

[gzmarchenko]

Macbook Pro 15" mid 2010 (macbook6,2)
High Sierra 10.13.6

`MacBook-Pro-zgen:~ zgen$ sudo kextutil -v /Library/Extensions/TurboMac.kext
Defaulting to kernel file '/System/Library/Kernels/kernel'
Notice: /Library/Extensions/TurboMac.kext has debug properties set.
Kext with invalid signatured (-67050) allowed: <OSKext 0x7fec6fe02360 [0x7fffa13aaaf0]> { URL = "file:///Library/Extensions/TurboMac.kext/", ID = "calasanmarko.TurboMac" }
/Library/Extensions/TurboMac.kext - no compatible dependency found for com.apple.kpi.iokit.
/Library/Extensions/TurboMac.kext - no compatible dependency found for com.apple.kpi.libkern.
/Library/Extensions/TurboMac.kext - no compatible dependency found for com.apple.kpi.iokit.
/Library/Extensions/TurboMac.kext - no compatible dependency found for com.apple.kpi.libkern.
/Library/Extensions/TurboMac.kext - no compatible dependency found for com.apple.kpi.iokit.
/Library/Extensions/TurboMac.kext - no compatible dependency found for com.apple.kpi.libkern.
Code Signing Failure: code signature is invalid
Warnings:
Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others:
TurboMac

Dependency Resolution Failures:
Only incompatible kexts found for these libraries:
com.apple.kpi.iokit
com.apple.kpi.libkern

Diagnostics for /Library/Extensions/TurboMac.kext:
Warnings:
Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others:
TurboMac

Dependency Resolution Failures:
Only incompatible kexts found for these libraries:
com.apple.kpi.iokit
com.apple.kpi.libkern`

[mndhvn]

I found the issue. I had developed this on Monterey, and as such had forgotten to fix the dependencies in Info.plist so that they are compatible with older versions of the OS, which is why you see all the dependency errors.

Bug is fixed as of d0c49db. It should work now on versions at least as old as Mountain Lion. If you have an even older version follow up and we'll see if we can get it working.

Please tell me if it works now so I can finalize it as a release.

[gzmarchenko]

MacBook-Pro-zgen:Build zgen$ sudo kextutil -v /Library/Extensions/TurboMac.kext
Defaulting to kernel file '/System/Library/Kernels/kernel'
Notice: /Library/Extensions/TurboMac.kext has debug properties set.
Kext with invalid signatured (-67030) allowed: <OSKext 0x7fca04d1d510 [0x7fffa37fbaf0]> { URL = "file:///Library/Extensions/TurboMac.kext/", ID = "calasanmarko.TurboMac" }
Code Signing Failure: code signature is invalid
Warnings:
Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others:
TurboMac

Warnings:
Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others:
TurboMac

/Library/Extensions/TurboMac.kext appears to be loadable (not including linkage for on-disk libraries).
Loading /Library/Extensions/TurboMac.kext.
(kernel) kxld[calasanmarko.TurboMac]: The super class vtable '__ZTV9IOService' for vtable '__ZTV8TurboMac' is out of date. Make sure your kext has been built against the correct headers.
(kernel) Can't load kext calasanmarko.TurboMac - link failed.
(kernel) Failed to load executable for kext calasanmarko.TurboMac.
(kernel) Kext calasanmarko.TurboMac failed to load (0xdc008016).
(kernel) Failed to load kext calasanmarko.TurboMac (error 0xdc008016).
Failed to load /Library/Extensions/TurboMac.kext - (libkern/kext) link error.
Failed to load /Library/Extensions/TurboMac.kext - (libkern/kext) link error.
Check library declarations for your kext with kextlibs(8).

[mndhvn]

So apparently a rebuild was necessary. I rebuilt it using acidanthera's MacKernelSDK as of ca21193. If it still doesn't work, then I'll have to download an older version of Xcode and use it to rebuild the kext.

I would try all of this myself but I only have Monterey running.

[axxonadmin]

This mac is accessible over IPv6 address. If you're able to connect using IPv6 I'd provide you with access to it directly.
But you know, it's a little bit slow ;)

[gzmarchenko]

sudo kextutil -v /Library/Extensions/TurboMac.kext
Defaulting to kernel file '/System/Library/Kernels/kernel'
Notice: /Library/Extensions/TurboMac.kext has debug properties set.
Kext with invalid signatured (-67050) allowed: <OSKext 0x7ffc89c41f20 [0x7fffa33bcaf0]> { URL = "file:///Library/Extensions/TurboMac.kext/", ID = "calasanmarko.TurboMac" }
Code Signing Failure: code signature is invalid
Warnings:
Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others:
TurboMac

Warnings:
Personality matches on IOResources but IOMatchCategory is missing or not equal to its IOClass; driver may be blocked from matching or may block others:
TurboMac

/Library/Extensions/TurboMac.kext appears to be loadable (not including linkage for on-disk libraries).
Loading /Library/Extensions/TurboMac.kext.
(kernel) kxld[calasanmarko.TurboMac]: The __ZTV8TurboMac is unpatchable because its class declares the method '__ZN8TurboMac4freeEv' without providing an implementation.
(kernel) Can't load kext calasanmarko.TurboMac - link failed.
(kernel) Failed to load executable for kext calasanmarko.TurboMac.
(kernel) Kext calasanmarko.TurboMac failed to load (0xdc008016).
(kernel) Failed to load kext calasanmarko.TurboMac (error 0xdc008016).
Failed to load /Library/Extensions/TurboMac.kext - (libkern/kext) link error.
Failed to load /Library/Extensions/TurboMac.kext - (libkern/kext) link error.
Check library declarations for your kext with kextlibs(8).

[mndhvn]

The Monterey version of Xcode for some reason doesn't let me use an old SDK, so I guess I'll have to downgrade to an older OS, and try building it from there. No need for any remote access, thanks for the offer though.

I'll get back to you in a couple of hours. Sorry for the trouble!

[mndhvn]

0170ed4 has been built using the 10.8 SDK. Tested working on both 10.13 (High Sierra) and 12.2 (Monterey) with no issues, so you should have no trouble now.

[gzmarchenko]

Thank you!

It loads just fine, but CPU freq stays 1.197.07 Mhz (Instead of 2.53Ghz i5) :(

[gzmarchenko]

checked using powermetrics

**** Processor usage ****

System Average frequency as fraction of nominal: 47.31% (1197.07 Mhz)
Package 0 C-state residency: 0.00% (C2: 0.00% C3: 0.00% C6: 0.00% C7: 0.00% )

Core 0 C-state residency: 0.00% (C3: 0.00% C6: 0.00% C7: 0.00% )

CPU 0 duty cycles/s: active/idle [< 16 us: 173.67/257.01] [< 32 us: 99.92/108.32] [< 64 us: 141.09/87.13] [< 128 us: 153.68/60.15] [< 256 us: 143.89/86.13] [< 512 us: 89.13/71.95] [< 1024 us: 28.58/62.55] [< 2048 us: 76.34/94.13] [< 4096 us: 23.38/80.54] [< 8192 us: 9.99/32.78] [< 16384 us: 0.80/0.00] [< 32768 us: 0.20/0.00]
CPU Average frequency as fraction of nominal: 47.31% (1197.07 Mhz)

CPU 1 duty cycles/s: active/idle [< 16 us: 213.84/38.97] [< 32 us: 54.76/51.36] [< 64 us: 60.95/54.96] [< 128 us: 37.77/40.57] [< 256 us: 43.97/61.35] [< 512 us: 33.57/29.58] [< 1024 us: 22.38/29.38] [< 2048 us: 14.19/42.77] [< 4096 us: 6.40/54.36] [< 8192 us: 3.20/76.14] [< 16384 us: 0.00/10.19] [< 32768 us: 0.00/1.40]
CPU Average frequency as fraction of nominal: 47.31% (1197.07 Mhz)

Core 1 C-state residency: 0.00% (C3: 0.00% C6: 0.00% C7: 0.00% )

CPU 2 duty cycles/s: active/idle [< 16 us: 204.05/271.39] [< 32 us: 64.55/81.54] [< 64 us: 113.31/62.15] [< 128 us: 138.30/57.56] [< 256 us: 122.91/75.14] [< 512 us: 78.54/50.36] [< 1024 us: 26.98/50.56] [< 2048 us: 52.76/80.94] [< 4096 us: 23.58/73.94] [< 8192 us: 17.59/40.37] [< 16384 us: 1.20/0.00] [< 32768 us: 0.20/0.00]
CPU Average frequency as fraction of nominal: 47.31% (1197.07 Mhz)

CPU 3 duty cycles/s: active/idle [< 16 us: 190.06/38.77] [< 32 us: 38.57/48.16] [< 64 us: 80.94/47.16] [< 128 us: 43.97/40.77] [< 256 us: 49.76/69.55] [< 512 us: 34.17/24.98] [< 1024 us: 21.78/26.18] [< 2048 us: 10.79/42.97] [< 4096 us: 6.20/50.56] [< 8192 us: 2.60/78.54] [< 16384 us: 0.00/10.19] [< 32768 us: 0.00/1.00]
CPU Average frequency as fraction of nominal: 47.31% (1197.07 Mhz)

[gzmarchenko]

It seems I got it working building kernel module of CPUTune using old XCode

[mndhvn]

Older CPUs seem to be sort of unreliable when it comes to writes to the IA32_PERF_CTL MSR to set the desired frequency on SpeedStep.

As of 72c8c46 I have decided to make the kext disable SpeedStep entirely by writing to IA32_MISC_ENABLE, to avoid this issue in CPUs that don't support HWP (like yours). I have also added Nice to Info.plist to delay the kext loading, which may increase boot times slightly (although still much faster than they are now) but should make sure nothing reenables SpeedStep after it's loaded.

[mndhvn]

It seems I got it working building kernel module of CPUTune using old XCode

Just saw this. Just so I know, what worked was disabling SpeedStep entirely, right? Either way glad you got it to work, if you could test out my latest commit I would appreciate it.