centos7 huge page disable

방법1.  tuned 설정으로 online 상태로 진행

->  AnonHugePages 가 완전히 비워지지 않음

 

 

방법2. grub 설정 추가

vi /etc/default/grub

 

6번 line 끝 부분에 추가 "transparent_hugepage=never"

      1 GRUB_TIMEOUT=5

      2 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"

 

      3 GRUB_DEFAULT=saved

      4 GRUB_DISABLE_SUBMENU=true

      5 GRUB_TERMINAL_OUTPUT="console"

      6 GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet transparent_hugepage=never"

      7 GRUB_DISABLE_RECOVERY="true"

 

grub2-mkconfig -o /boot/grub2/grub.cfg

reboot

 

 

----- 적용 되었는지 확인 -----

 

cat /proc/meminfo | grep -i huge
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

 

 

cat /sys/kernel/mm/transparent_hugepage/enabled
always madvise [never]