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A comment on 7nm AMD EPYC “Rome” CPU with 64C/128T to Cost $8K (56 Core Intel Xeon: $25K-50K). Parent comment

Re:7nm AMD EPYC “Rome” CPU with 64C/128T to Cost $8K (56 Cor... by rolleiflex on Saturday June 22, 2019 @11:22AM (#20250071)
Start from https://amd-osx.com/.

> Do you have power management (and sleep) working on amd?

Yes (null-power-mgmt.kext) and yes. Though mind that this is a desktop, so power mgmt. / sleep needs are much less demanding than a laptop.

Specifically, the kext works by disabling power management from within OS X. However I have a kill-a-watt and the the power from the plug varies based on the CPU load, so it seems to be behaving correctly.

That said, I would not do this on a laptop. Just buy a MacBook Pro if you need that. My hackintosh needs are strictly because Apple (until a week or two ago) just didn’t make a computer as powerful as I needed. I’ll probably just go buy a Mac Pro in the first chance.

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Re:7nm AMD EPYC “Rome” CPU with 64C/128T to Cost $8K (56 Cor... by loeg on Saturday June 22, 2019 @01:39PM (#20250752)
As long as the OS uses C-states when idle (and it does) you get the vast majority of Zen power savings, even without touching P-states (clock). E.g., https://www.youtube.com/watch?v=bzxn1hS7Nq4#t=6m21s
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Re:7nm AMD EPYC “Rome” CPU with 64C/128T to Cost $8K (56 Cor... by nottorp on Saturday June 22, 2019 @12:12PM (#20250329)
I'm typing this on a MBPro :)

With me being a quiet computing / low power fanatic, null power management isn't good enough I'm afraid. Not to mention that amd-osx says "sleep will either work or not".

Using a hackintosh desktop for the same reason as you and yes, considering getting a Mac Pro. But it's good to be aware of your alternatives.

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Re:7nm AMD EPYC “Rome” CPU with 64C/128T to Cost $8K (56 Cor... by jammygit on Saturday June 22, 2019 @05:55PM (#20251910)
Out of curiosity, what tasks do you use those Xeon/thread ripper CPUs for?
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Re:7nm AMD EPYC “Rome” CPU with 64C/128T to Cost $8K (56 Cor... by rolleiflex on Saturday June 22, 2019 @07:02PM (#20252181)
Kubernetes, Minikube, Skaffold, Docker. Skaffold especially hits you very hard, because it effectively compiles a docker image, sticks it into Kubernetes, and refreshes the Kubernetes cluster on every save. This is the only sane way to build a distributed app on K8s locally, but doing it for more than an hour legitimately increases the temperature in my flat by a degree or two.
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