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3.5.2.4.1.1. Set the Boot Parameters
Follow the step below to modify the default hugepages setting in grub files:
Edit /etc/default/grub file.
Append the highlighted parameters to the GRUB_CMDLINE_LINUX line in the /etc/default/grub file:
GRUB_CMDLINE_LINUX=" rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb default_hugepagesz=1G hugepagesz=1G hugepages=40 iommu=pt panic=1”
The file will look as below after the edit:
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb default_hugepagesz=1G hugepagesz=1G hugepages=40 iommu=pt panic=1”
GRUB_DISABLE_RECOVERY="true"