Disable Transparent Huge Pages [THP] in CentOS 8

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.

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