On CentOS 8, In file editor open /etc/default/grub file, and add “transparent_hugepage=never” kernel parameter on the GRUB_CMDLINE_LINUX in options as shown below;
GRUB_CMDLINE_LINUX="options transparent_hugepage=never"
On command line execute grub2-mkconfig to build /boot/grub2/grub.cfg
grub2-mkconfig -o /boot/grub2/grub.cfg [System with BIOS]grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg [System with UEFI]
Reboot Server to apply changes. If THP is still not disabled, stop tuned with
tuned-adm off
Add “transparent_hugepage=never” kernel parameter in /etc/default/grub file and reboot server.
