Optimize Cpu Performance On Rhel Systems; Optimize Cpu Performance On Suse Systems - Dell EMC VxFlex Ready Node 14G Manual

Installing the Operating System

Optimize CPU performance on RHEL systems

Optimize CPU performance on SUSE systems

Hardware Configuration and Operating System Installation Guide - Linux Servers
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To ensure maximum CPU performance on systems running RHEL, perform the
following procedure on the server:
Procedure
1. Open the GRUB template for editing:
vim /etc/default/grub
2. Find the GRUB_CMDLINE_LINUX configuration option and append the following
to the line to the kernel parameters:
intel_idle.max_cstate=0 processor.max_cstate=1
intel_pstate=disable
Example:
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=rhel/root
rd.lvm.lv=rhel/swap rhgb intel_idle.max_cstate=0
processor.max_cstate=1 intel_pstate=disable quiet"
3. Compile the new GRUB:
grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
4. Stop and then disable the tuned service:
systemctl stop tuned
systemctl disable tuned
5. Reboot the server.
To ensure maximum CPU performance on systems running SUSE 12.2.2 or higher,
perform the following procedure on the server:
Procedure
1. Open the GRUB template for editing:
vim /etc/default/grub