Forum: Wie mach ich was?
Topic: AMD Epyc
started by: Michael
Posted by Michael on Oct. 10 2022, 19:50
Tuning UEFI Settings for
Performance and Energy
Efficiency on AMD Processor
Posted by Michael on Aug. 07 2023, 18:45
< https://metebalci.com/blog/epyc-energy-consumption-test/ >
In order to have maximum power saving and efficiency, I am using the following BIOS options:
APBDIS = 0: dynamically switch Infinity Fabric P-state based on link use
DF C-States = Enabled: allow Infinity Fabric to go to low-power
Global C-State Control = Auto: enables C2 state
cTDP and Package Power Limit Control = Auto: default power limits
Core Performance Boost = Auto: enables boost frequency when possible
Particularly the first two options, maybe also the third one, can diminish the performance under load, so they are usually recommended to have opposite values (APBDIS=1, DF C-States=Disabled, Global C-State Control=Disabled) for performance oriented setups.