Add Numa support. (#35838)

pull/39593/merge
Sharon Gratch 7 years ago committed by ansibot
parent dc420fc5fa
commit 8bfc92fb27

@ -512,6 +512,21 @@ options:
- "Memory balloon is a guest device, which may be used to re-distribute / reclaim the host memory
based on VM needs in a dynamic way. In this way it's possible to create memory over commitment states."
version_added: "2.5"
numa_tune_mode:
description:
- "Set how the memory allocation for NUMA nodes of this VM is applied (relevant if NUMA nodes are set for this VM)."
- "It can be one of the following: I(interleave), I(preferred) or I(strict)."
- "If no value is passed, default value is set by oVirt/RHV engine."
version_added: "2.6"
numa_nodes:
description:
- "List of vNUMA Nodes to set for this VM and pin them to assigned host's physical NUMA node."
- "Each vNUMA node is described by following dictionary:"
- "C(index) - The index of this NUMA node (mandatory)."
- "C(memory) - Memory size of the NUMA node in MiB (mandatory)."
- "C(cores) - list of VM CPU cores indexes to be included in this NUMA node (mandatory)."
- "C(numa_node_pins) - list of physical NUMA node indexes to pin this virtual NUMA node to."
version_added: "2.6"
rng_device:
description:
- "Random number generator (RNG). You can choose of one the following devices I(urandom), I(random) or I(hwrng)."
@ -760,6 +775,32 @@ EXAMPLES = '''
name: myvm
memory: 4GiB
# Create/update a VM to run with two vNUMA nodes and pin them to physical NUMA nodes as follows:
# vnuma index 0-> numa index 0, vnuma index 1-> numa index 1
- name: Create a VM to run with two vNUMA nodes
ovirt_vms:
name: myvm
cluster: mycluster
numa_tune_mode: "interleave"
numa_nodes:
- index: 0
cores: [0]
memory: 20
numa_node_pins: [0]
- index: 1
cores: [1]
memory: 30
numa_node_pins: [1]
- name: Update an existing VM to run without previously created vNUMA nodes (i.e. remove all vNUMA nodes+NUMA pinning setting)
ovirt_vms:
name: myvm
cluster: mycluster
state: "present"
numa_tune_mode: "interleave"
numa_nodes:
- index: -1
# When change on the VM needs restart of the VM, use next_run state,
# The VM will be updated and rebooted if there are any changes.
# If present state would be used, VM won't be restarted.
@ -1050,6 +1091,9 @@ class VmsModule(BaseModule):
io=otypes.Io(
threads=self.param('io_threads'),
) if self.param('io_threads') is not None else None,
numa_tune_mode=otypes.NumaTuneMode(
self.param('numa_tune_mode')
) if self.param('numa_tune_mode') else None,
rng_device=otypes.RngDevice(
source=otypes.RngSource(self.param('rng_device')),
) if self.param('rng_device') else None,
@ -1127,6 +1171,7 @@ class VmsModule(BaseModule):
equal(self.param('serial_policy'), str(getattr(entity.serial_number, 'policy', None))) and
equal(self.param('serial_policy_value'), getattr(entity.serial_number, 'value', None)) and
equal(self.param('placement_policy'), str(entity.placement_policy.affinity) if entity.placement_policy else None) and
equal(self.param('numa_tune_mode'), str(entity.numa_tune_mode)) and
equal(self.param('rng_device'), str(entity.rng_device.source) if entity.rng_device else None)
)
@ -1143,6 +1188,7 @@ class VmsModule(BaseModule):
entity = self._service.service(entity_id).get()
self.changed = self.__attach_disks(entity)
self.changed = self.__attach_nics(entity)
self.changed = self.__attach_numa_nodes(entity)
self.changed = self.__attach_watchdog(entity)
self.changed = self.__attach_graphical_console(entity)
@ -1403,6 +1449,41 @@ class VmsModule(BaseModule):
)
)
def __attach_numa_nodes(self, entity):
numa_nodes_service = self._service.service(entity.id).numa_nodes_service()
if len(self.param('numa_nodes')) > 0:
# Remove all existing virtual numa nodes before adding new ones
existed_numa_nodes = numa_nodes_service.list()
existed_numa_nodes.sort(reverse=len(existed_numa_nodes) > 1 and existed_numa_nodes[1].index > existed_numa_nodes[0].index)
for current_numa_node in existed_numa_nodes:
numa_nodes_service.node_service(current_numa_node.id).remove()
for numa_node in self.param('numa_nodes'):
if numa_node is None or numa_node.get('index') is None or numa_node.get('cores') is None or numa_node.get('memory') is None:
return False
numa_nodes_service.add(
otypes.VirtualNumaNode(
index=numa_node.get('index'),
memory=numa_node.get('memory'),
cpu=otypes.Cpu(
cores=[
otypes.Core(
index=core
) for core in numa_node.get('cores')
],
),
numa_node_pins=[
otypes.NumaNodePin(
index=pin
) for pin in numa_node.get('numa_node_pins')
] if numa_node.get('numa_node_pins') is not None else None,
)
)
return True
def __attach_watchdog(self, entity):
watchdogs_service = self._service.service(entity.id).watchdogs_service()
watchdog = self.param('watchdog')
@ -1813,6 +1894,8 @@ def main():
io_threads=dict(type='int', default=None),
ballooning_enabled=dict(type='bool', default=None),
rng_device=dict(type='str'),
numa_tune_mode=dict(type='str', choices=['interleave', 'preferred', 'strict']),
numa_nodes=dict(type='list', default=[]),
custom_properties=dict(type='list'),
watchdog=dict(type='dict'),
graphical_console=dict(type='dict'),

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