Dell EMC VxFlex Ready Node 14G Manual page 31

2. Find the GRUB_CMDLINE_LINUX configuration option and append the following
to the line:
"intel_idle.max_cstate=0 processor.max_cstate=1
intel_pstate=disable"
Example:
GRUB_CMDLINE_LINUX="intel_idle.max_cstate=0
processor.max_cstate=1 intel_pstate=disable"
3. Compile the new GRUB:
mkgrub2-mkconfig -o /boot/efi/EFI/sles/grub.cfg
4. Reboot the server.
Optimize CPU performance on SUSE systems
Installing the Operating System
31