Is it possible to disable Transparent Huge pages on the fly?

In order to disable the THP We did the following on all 635 RHEL machines (we have rhel 7.5 version) This lines are from bash script that we runs on all machines **Step 1** [[ -f /sys/kernel/mm/transparent_hugepage/enabled ]] && echo never > /sys/kernel/mm/transparent_hugepage/enabled [[ -f /sys/kernel/mm/transparent_hugepage/defrag ]] && echo never > /sys/kernel/mm/transparent_hugepage/defrag *Verification:* cat /sys/kernel/mm/transparent_hugepage/enabled always madvise [never] cat /sys/kernel/mm/transparent_hugepage/defrag always madvise [never] But as all know this steps are not considered when machine restarted/rebooted **Step 2** So we also did this , we append the following lines to /etc/rc.local if test -f /sys/kernel/mm/transparent_hugepage/enabled; then echo never > /sys/kernel/mm/transparent_hugepage/enabled fi if test -f /sys/kernel/mm/transparent_hugepage/defrag; then echo never > /sys/kernel/mm/transparent_hugepage/defrag fi **The question is:** Does step 1 as I mentioned above really disabled the THP on the fly? Note - also other info from one typical machine sysctl -a | grep hugepage vm.hugepages_treat_as_movable = 0 vm.nr_hugepages = 0 vm.nr_hugepages_mempolicy = 0 vm.nr_overcommit_hugepages = 0 reference - [Configuring Transparent Huge Pages](https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/performance_tuning_guide/sect-red_hat_enterprise_linux-performance_tuning_guide-configuring_transparent_huge_pages) .