@@ -135,4 +135,27 @@ def __init__(self, name, scenarios):
Scenario("compr-multifd-channels-64",
multifd=True, multifd_channels=64),
]),
+
+ # Looking at effect of dirty-limit with
+ # varying x_vcpu_dirty_limit_period
+ Comparison("compr-dirty-limit-period", scenarios = [
+ Scenario("compr-dirty-limit-period-500",
+ dirty_limit=True, x_vcpu_dirty_limit_period=500),
+ Scenario("compr-dirty-limit-period-800",
+ dirty_limit=True, x_vcpu_dirty_limit_period=800),
+ Scenario("compr-dirty-limit-period-1000",
+ dirty_limit=True, x_vcpu_dirty_limit_period=1000),
+ ]),
+
+
+ # Looking at effect of dirty-limit with
+ # varying vcpu_dirty_limit
+ Comparison("compr-dirty-limit", scenarios = [
+ Scenario("compr-dirty-limit-10MB",
+ dirty_limit=True, vcpu_dirty_limit=10),
+ Scenario("compr-dirty-limit-20MB",
+ dirty_limit=True, vcpu_dirty_limit=20),
+ Scenario("compr-dirty-limit-50MB",
+ dirty_limit=True, vcpu_dirty_limit=50),
+ ]),
]
@@ -102,6 +102,8 @@ def _migrate_progress(self, vm):
info.get("expected-downtime", 0),
info.get("setup-time", 0),
info.get("cpu-throttle-percentage", 0),
+ info.get("dirty-limit-throttle-time-per-round", 0),
+ info.get("dirty-limit-ring-full-time", 0),
)
def _migrate(self, hardware, scenario, src, dst, connect_uri):
@@ -203,6 +205,21 @@ def _migrate(self, hardware, scenario, src, dst, connect_uri):
resp = dst.cmd("migrate-set-parameters",
multifd_channels=scenario._multifd_channels)
+ if scenario._dirty_limit:
+ if not hardware._dirty_ring_size:
+ raise Exception("dirty ring size must be configured when "
+ "testing dirty limit migration")
+
+ resp = src.cmd("migrate-set-capabilities",
+ capabilities = [
+ { "capability": "dirty-limit",
+ "state": True }
+ ])
+ resp = src.cmd("migrate-set-parameters",
+ x_vcpu_dirty_limit_period=scenario._x_vcpu_dirty_limit_period)
+ resp = src.cmd("migrate-set-parameters",
+ vcpu_dirty_limit=scenario._vcpu_dirty_limit)
+
resp = src.cmd("migrate", uri=connect_uri)
post_copy = False
@@ -81,7 +81,9 @@ def __init__(self,
downtime,
downtime_expected,
setup_time,
- throttle_pcent):
+ throttle_pcent,
+ dirty_limit_throttle_time_per_round,
+ dirty_limit_ring_full_time):
self._status = status
self._ram = ram
@@ -91,6 +93,10 @@ def __init__(self,
self._downtime_expected = downtime_expected
self._setup_time = setup_time
self._throttle_pcent = throttle_pcent
+ self._dirty_limit_throttle_time_per_round = \
+ dirty_limit_throttle_time_per_round
+ self._dirty_limit_ring_full_time = \
+ dirty_limit_ring_full_time
def serialize(self):
return {
@@ -102,6 +108,10 @@ def serialize(self):
"downtime_expected": self._downtime_expected,
"setup_time": self._setup_time,
"throttle_pcent": self._throttle_pcent,
+ "dirty_limit_throttle_time_per_round":
+ self._dirty_limit_throttle_time_per_round,
+ "dirty_limit_ring_full_time":
+ self._dirty_limit_ring_full_time,
}
@classmethod
@@ -114,4 +124,6 @@ def deserialize(cls, data):
data["downtime"],
data["downtime_expected"],
data["setup_time"],
- data["throttle_pcent"])
+ data["throttle_pcent"],
+ data["dirty_limit_throttle_time_per_round"],
+ data["dirty_limit_ring_full_time"])
@@ -30,7 +30,9 @@ def __init__(self, name,
auto_converge=False, auto_converge_step=10,
compression_mt=False, compression_mt_threads=1,
compression_xbzrle=False, compression_xbzrle_cache=10,
- multifd=False, multifd_channels=2):
+ multifd=False, multifd_channels=2,
+ dirty_limit=False, x_vcpu_dirty_limit_period=500,
+ vcpu_dirty_limit=1):
self._name = name
@@ -60,6 +62,10 @@ def __init__(self, name,
self._multifd = multifd
self._multifd_channels = multifd_channels
+ self._dirty_limit = dirty_limit
+ self._x_vcpu_dirty_limit_period = x_vcpu_dirty_limit_period
+ self._vcpu_dirty_limit = vcpu_dirty_limit
+
def serialize(self):
return {
"name": self._name,
@@ -79,6 +85,9 @@ def serialize(self):
"compression_xbzrle_cache": self._compression_xbzrle_cache,
"multifd": self._multifd,
"multifd_channels": self._multifd_channels,
+ "dirty_limit": self._dirty_limit,
+ "x_vcpu_dirty_limit_period": self._x_vcpu_dirty_limit_period,
+ "vcpu_dirty_limit": self._vcpu_dirty_limit,
}
@classmethod
@@ -131,6 +131,17 @@ def __init__(self):
parser.add_argument("--multifd-channels", dest="multifd_channels",
default=2, type=int)
+ parser.add_argument("--dirty-limit", dest="dirty_limit", default=False,
+ action="store_true")
+
+ parser.add_argument("--x-vcpu-dirty-limit-period",
+ dest="x_vcpu_dirty_limit_period",
+ default=500, type=int)
+
+ parser.add_argument("--vcpu-dirty-limit",
+ dest="vcpu_dirty_limit",
+ default=1, type=int)
+
def get_scenario(self, args):
return Scenario(name="perfreport",
downtime=args.downtime,
@@ -154,7 +165,12 @@ def get_scenario(self, args):
compression_xbzrle_cache=args.compression_xbzrle_cache,
multifd=args.multifd,
- multifd_channels=args.multifd_channels)
+ multifd_channels=args.multifd_channels,
+
+ dirty_limit=args.dirty_limit,
+ x_vcpu_dirty_limit_period=\
+ args.x_vcpu_dirty_limit_period,
+ vcpu_dirty_limit=args.vcpu_dirty_limit)
def run(self, argv):
args = self._parser.parse_args(argv)