redhat 7.7关闭透明大页

redhat 7.7关闭透明大页

1.在GRUB_CMDLINE_LINUX加入选项 transparent_hugepage=never

echo 'GRUB_CMDLINE_LINUX="transparent_hugepage=never"' >> /etc/default/grub

2.重新生成grub文件

#grub2-mkconfig -o /boot/grub2/grub.cfgGenerating grub configuration file ...Found linux image: /boot/vmlinuz-3.10.0-693.el7.x86_64Found initrd image: /boot/initramfs-3.10.0-693.el7.x86_64.imgFound linux image: /boot/vmlinuz-0-rescue-bdd94cf792bd4ac6a087ff2542ba6cd0Found initrd image: /boot/initramfs-0-rescue-bdd94cf792bd4ac6a087ff2542ba6cd0.imgdone#grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfgGenerating grub configuration file ...Found linux image: /boot/vmlinuz-3.10.0-693.el7.x86_64Found initrd image: /boot/initramfs-3.10.0-693.el7.x86_64.imgFound linux image: /boot/vmlinuz-0-rescue-bdd94cf792bd4ac6a087ff2542ba6cd0Found initrd image: /boot/initramfs-0-rescue-bdd94cf792bd4ac6a087ff2542ba6cd0.imgdone

3.重启操作系统

reboot

4.验证是否关闭透明大页

# cat /proc/cmdlineBOOT_IMAGE=/vmlinuz-3.10.0-693.el7.x86_64 root=/dev/mapper/rhel-root ro transparent_hugepage=never#grep Huge /proc/meminfoAnonHugePages: 0 kBHugePages_Total: 0HugePages_Free: 0HugePages_Rsvd: 0HugePages_Surp: 0Hugepagesize: 2048 kB

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