On some CPU architectures, huge-sized page are supported for
performance boost. However, virt-manager doesn't support the
feature of huge-sized page explicitly.
The patch is addressing the issue. Support of huge-sized page
will be implemented in the Guest object so that the virt-manager
can configure.
Signed-off-by: Li Zhang <zhlcindy@xxxxxxxxxxxxxxxxxx>
---
virtinst/Guest.py | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/virtinst/Guest.py b/virtinst/Guest.py
index 46ec340..a5d2e56 100644
--- a/virtinst/Guest.py
+++ b/virtinst/Guest.py
@@ -190,6 +190,7 @@ class Guest(XMLBuilderDomain.XMLBuilderDomain):
self._uuid = None
self._memory = None
self._maxmemory = None
+ self._hugepage = None
self._vcpus = 1
self._maxvcpus = 1
self._cpuset = None
@@ -343,6 +344,14 @@ class Guest(XMLBuilderDomain.XMLBuilderDomain):
xpath="./memory",
get_converter=lambda s, x: int(x) / 1024,
set_converter=lambda s, x: int(x) * 1024)
+ def get_hugepage(self):
+ return self._hugepage
+ def set_hugepage(self, val):
+ if val is None:
+ return val
+ self._hugepage = bool(val)
+ hugepage = _xml_property(get_hugepage, set_hugepage,
+ xpath="./memoryBacking/hugepages", is_bool=True)
# UUID for the guest
def get_uuid(self):
@@ -1044,9 +1053,14 @@ class Guest(XMLBuilderDomain.XMLBuilderDomain):
xml = add(desc_xml)
xml = add(" <memory>%s</memory>" % (self.maxmemory * 1024))
xml = add(" <currentMemory>%s</currentMemory>" % (self.memory * 1024))
+
# <blkiotune>
# <memtune>
- # <memoryBacking>
+ if self.hugepage is True:
+ xml = add(" <memoryBacking>")
+ xml = add(" <hugepages/>")
+ xml = add(" </memoryBacking>")
+
xml = add(self._get_vcpu_xml())
# <cputune>
xml = add(self.numatune.get_xml_config())
--
1.7.4.1
