KVM not able to use 1GB hugepages
Issue
- Trying to enable static hugepage of size 1 GB on
KVM
host but not able to see the 1 GB size.
#cat /proc/meminfo | grep Huge
AnonHugePages: 235520 kB
HugePages_Total: 200
HugePages_Free: 20
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 1048576 kB
- Modified the boot option on guest as listed below:
GRUB_CMDLINE_LINUX=" vconsole.keymap=us vconsole.font=latarcyrheb-sun16 rd.lvm.lv=rootvg/rootlv elevator=noop default_hugepagesz=1G hugepagesz=1G hugepages=100"
Environment
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- KVM
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