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Z690 Chipset and Alder Lake CPUs

Joined
Aug 23, 2018
Messages
429
Motherboard
Gigabyte Z690 Aorus Master
CPU
i9-12900K
Graphics
RX 6800 XT
Mac
  1. MacBook Pro
Classic Mac
  1. iMac
Mobile Phone
  1. iOS

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Joined
May 10, 2021
Messages
17
Motherboard
Gigabyte Z690 Aorus Elite AX
CPU
i9-12900K
Graphics
RX 6900 XT
@CaseySJ niiiiice post/guide of activation of P+E+HT! :)

My result in GB5:

However, my results with PVE stay best in multi-core... (around 16,0k ~ 16,3k, little thing) But I believe that new versions of CpuTopologySync and patches may increase this gap between Opencore versus PVE in my scenario.

Thanks a lot!
 
Joined
Oct 4, 2018
Messages
748
Motherboard
Gigabyte C246-WU4
CPU
E-2278G
Graphics
WX7100
Mac
  1. MacBook Pro
  2. Mac mini
This suggests that the issue with the number of cores is not cosmetic and some E-cores remain inactive.

i5-12600K (6P+4E) should be 10C/16T, shows as 8C/14T in Geekbench (-2C/-2T). (@CaseySJ )
i7-12700K (8P+4E) should be 12C/20T, @Romanychev reports "+2 E-core", so I guess 10C/18T (-2C/-2T).
i9-12900K (8P+8E) should be 16C/24T, shows as 12C/20T in Geekbench (-4C/-4T). (@StefanAM )

From previous experiments with SSDT-CPUR-Z690, we know that cores/threads appear in MADT in this order:
P1, PHT1, P2, PHT2,… Pn, HTn, E1, E2,…
and are allocated to \_SB_.PR## ACPI devices in this order.
SSDT-CPUR-Z690 wraps the ACPI devices to corresponding \_SB_.CP## processor objects.
SSDT-PLUG-ALT creates processor object stubs, without any reference to the actual ACPI processor devices; but apparently, OS X fills these stubs from MADT (including reading the actual Processor Base Address parameter from MADT rather than from the SSDT declaration).
What we see looks like OS X is creating phantom hyper-threads for the E-cores:
P1, PHT1, P2, PHT2,… E1, EHT1, E2, EHT2,…

@CaseySJ , @StefanAM , @Romanychev Can one of you post an IOReg with CpuTopologySync.kext in use? I'd like to see what the processors look like, especially the inactive ones.
 
Joined
May 17, 2013
Messages
9
Motherboard
Asus Rog Strix Z690-A GAMING WIFI
CPU
i7-12700KF
Graphics
Quadro K2000
Here is IOReg with CpuTopologySync.kext.My CPU is 12700KF.
2.png
1.png
 
Last edited:
Joined
Oct 4, 2018
Messages
748
Motherboard
Gigabyte C246-WU4
CPU
E-2278G
Graphics
WX7100
Mac
  1. MacBook Pro
  2. Mac mini
Thanks!
Not being able to browse and see all properties, CP16 to CP19 at addresses (lapic) 48, 4A, 4C, 4E look like the genuine E-cores.
 
Joined
Aug 23, 2018
Messages
429
Motherboard
Gigabyte Z690 Aorus Master
CPU
i9-12900K
Graphics
RX 6800 XT
Mac
  1. MacBook Pro
Classic Mac
  1. iMac
Mobile Phone
  1. iOS
Just a thought.......... if we can enable 8 more cores (ex: i9 12900k) we will have 8 e-cores and 8 fake HT e-cores. Don't know if physically this is possible.
 
Joined
Aug 23, 2018
Messages
429
Motherboard
Gigabyte Z690 Aorus Master
CPU
i9-12900K
Graphics
RX 6800 XT
Mac
  1. MacBook Pro
Classic Mac
  1. iMac
Mobile Phone
  1. iOS
This suggests that the issue with the number of cores is not cosmetic and some E-cores remain inactive.

i5-12600K (6P+4E) should be 10C/16T, shows as 8C/14T in Geekbench (-2C/-2T). (@CaseySJ )
i7-12700K (8P+4E) should be 12C/20T, @Romanychev reports "+2 E-core", so I guess 10C/18T (-2C/-2T).
i9-12900K (8P+8E) should be 16C/24T, shows as 12C/20T in Geekbench (-4C/-4T). (@StefanAM )

From previous experiments with SSDT-CPUR-Z690, we know that cores/threads appear in MADT in this order:
P1, PHT1, P2, PHT2,… Pn, HTn, E1, E2,…
and are allocated to \_SB_.PR## ACPI devices in this order.
SSDT-CPUR-Z690 wraps the ACPI devices to corresponding \_SB_.CP## processor objects.
SSDT-PLUG-ALT creates processor object stubs, without any reference to the actual ACPI processor devices; but apparently, OS X fills these stubs from MADT (including reading the actual Processor Base Address parameter from MADT rather than from the SSDT declaration).
What we see looks like OS X is creating phantom hyper-threads for the E-cores:
P1, PHT1, P2, PHT2,… E1, EHT1, E2, EHT2,…

@CaseySJ , @StefanAM , @Romanychev Can one of you post an IOReg with CpuTopologySync.kext in use? I'd like to see what the processors look like, especially the inactive ones.
 

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Joined
Sep 24, 2016
Messages
17
Motherboard
Asrock Z690 Extreme
CPU
i7-12700K
Graphics
RX 570
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  1. MacBook Pro
Mobile Phone
  1. Android
This suggests that the issue with the number of cores is not cosmetic and some E-cores remain inactive.

i5-12600K (6P+4E) should be 10C/16T, shows as 8C/14T in Geekbench (-2C/-2T). (@CaseySJ )
i7-12700K (8P+4E) should be 12C/20T, @Romanychev reports "+2 E-core", so I guess 10C/18T (-2C/-2T).
i9-12900K (8P+8E) should be 16C/24T, shows as 12C/20T in Geekbench (-4C/-4T). (@StefanAM )

From previous experiments with SSDT-CPUR-Z690, we know that cores/threads appear in MADT in this order:
P1, PHT1, P2, PHT2,… Pn, HTn, E1, E2,…
and are allocated to \_SB_.PR## ACPI devices in this order.
SSDT-CPUR-Z690 wraps the ACPI devices to corresponding \_SB_.CP## processor objects.
SSDT-PLUG-ALT creates processor object stubs, without any reference to the actual ACPI processor devices; but apparently, OS X fills these stubs from MADT (including reading the actual Processor Base Address parameter from MADT rather than from the SSDT declaration).
What we see looks like OS X is creating phantom hyper-threads for the E-cores:
P1, PHT1, P2, PHT2,… E1, EHT1, E2, EHT2,…

@CaseySJ , @StefanAM , @Romanychev Can one of you post an IOReg with CpuTopologySync.kext in use? I'd like to see what the processors look like, especially the inactive ones.
1638798073317.png

12700k
 

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Joined
May 10, 2021
Messages
17
Motherboard
Gigabyte Z690 Aorus Elite AX
CPU
i9-12900K
Graphics
RX 6900 XT
Hi Guys!

Share with you some results and also the IOReg.

I noticed that there are the last 4 processors in the IOReg and that they are marked as uninitialized.

In the activity monitor you can also confirm that it doesn't show the consumption of 4 cores, maybe this makes the multicore score a little lower.

My last GB5 scores:
 

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Joined
Oct 4, 2018
Messages
748
Motherboard
Gigabyte C246-WU4
CPU
E-2278G
Graphics
WX7100
Mac
  1. MacBook Pro
  2. Mac mini
@StefanAM, @Romanychev Thanks! I've seen the ghosts!

Throughout the P-cores and their hyperthreads, all is fine. First E-core (from 12900K):
1638805964965.png

'processor-id' and 'processor-number are in sync. Then the next E-core:
1638806063305.png

'processor-id' keeps with the sequence (as defined in SSDT) but 'processor-number', which should be an OS X-generated alternate index, has jumped by two units! 'Processor-number' 0x11 is nowhere to be found.
This goes on with the remaining cores, and eventually the last processors are not initialised.

There are no such jumps or loss of synchronicity in a previous IOReg with P+E cores (no HT).

Mad Scientist proposal: What happens if the "effective" numbers are raised in the kernel patch?
Replace: B8 28 00 14 00 31 D2 for i9-12900K
Replace: B8 1C 00 0E 00 31 D2 for i7-12700K
Replace: B8 18 00 0C 00 31 D2 for i5-12600K
(Most likely the hack no longer boots because the patch does not match the actual CPU, or the limiting counter is not there—or is only one of the two patched instances.)
 
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