Re: [libvirt] [PATCH] Add huge page support to libvirt..
Hey,
For anyone interested, there is more background here:
https://fedoraproject.org/wiki/Features/KVM_Huge_Page_Backed_Memory
On Wed, 2009-07-22 at 21:25 -0400, john cooper wrote:
This patch allows passing of a "-mem-path <arg>"
flag to qemu for support of huge page backed
guests. A guest may request this option via
specifying:
<hugepage>on</hugepage>
Other options include:
- <hugepages/>
- <memory hugepages="yes">XXXXX</memory>
in its domain definition xml file. The request
for huge page backing will be attempted within
libvirt if the host system has indicated a
hugetlbfs mount point in qemu.conf, for example:
hugepage_mount = "/hugetlbfs"
I'd suggest /dev/hugepages as the default - /hugetlbfs has an seriously
unstandard whiff about it
Apart from that, the patch looks good to me - it needs to be re-based
onto latest master, but the conflict is no big deal.
Cheers,
Mark.