def test_no_cross_packages_placement_no_bad_affinity_ip(self):
w_a = get_test_workload("a", 3, STATIC)
w_b = get_test_workload("b", 2, STATIC)
w_c = get_test_workload("c", 1, STATIC)
w_d = get_test_workload("d", 2, STATIC)
cpu = get_cpu(package_count=2, cores_per_package=2, threads_per_core=2)
workload_manager = WorkloadManager(cpu, MockCgroupManager(),
IntegerProgramCpuAllocator())
workload_manager.add_workload(w_a)
workload_manager.add_workload(w_b)
workload_manager.add_workload(w_c)
workload_manager.add_workload(w_d)
self.assertEqual(
0, len(get_cross_package_violations(workload_manager.get_cpu())))
self.assertEqual(0,
len(workload_manager.get_cpu().get_empty_threads()))
def test_assign_two_threads_empty_cpu_ip(self):
"""
Workload 0: 2 threads --> (p:0 c:0 t:0) (p:0 c:1 t:0)
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 2, STATIC)
allocator.assign_threads(w)
self.assertEqual(2, len(cpu.get_claimed_threads()))
# Expected core and threads
core00 = cpu.get_packages()[0].get_cores()[0]
core01 = cpu.get_packages()[0].get_cores()[1]
thread0 = core00.get_threads()[0]
self.assertEqual(0, thread0.get_id())
self.assertTrue(thread0.is_claimed())
thread1 = core01.get_threads()[0]
self.assertEqual(1, thread1.get_id())
self.assertTrue(thread1.is_claimed())
def test_assign_two_workloads_empty_cpu_ip(self):
"""
Workload 0: 2 threads --> (p:0 c:0 t:0) (p:0 c:1 t:0)
Workload 1: 1 thread --> (p:1 c:0 t:0)
"""
for allocator in [
IntegerProgramCpuAllocator(), forecast_ip_alloc_simple
]:
cpu = get_cpu()
w0 = get_test_workload(uuid.uuid4(), 2, STATIC)
w1 = get_test_workload(uuid.uuid4(), 1, STATIC)
request0 = AllocateThreadsRequest(cpu, w0.get_id(),
{w0.get_id(): w0}, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request0).get_cpu()
request1 = AllocateThreadsRequest(cpu, w1.get_id(), {
w0.get_id(): w0,
w1.get_id(): w1
}, {}, DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request1).get_cpu()
self.assertEqual(3, len(cpu.get_claimed_threads()))
ids_per_socket = []
for pid, p in enumerate(cpu.get_packages()):
r = []
for cid, c in enumerate(p.get_cores()):
for tid, t in enumerate(c.get_threads()):
if t.is_claimed():
self.assertEqual(1, len(t.get_workload_ids()))
r.append((t.get_workload_ids()[0], c.get_id()))
ids_per_socket.append(r)
for r in ids_per_socket:
# each workload should be on a different socket
self.assertEqual(1, len(set([e[0] for e in r])))
# assigned threads should be on different coreds
core_ids = [e[1] for e in r]
self.assertEqual(len(set(core_ids)), len(core_ids))
def test_shared_core_violation(self):
allocator = IntegerProgramCpuAllocator()
# Claim all thread but one
cpu = get_cpu()
w_0 = get_test_workload(uuid.uuid4(), len(cpu.get_threads()) - 1, STATIC)
request = get_no_usage_threads_request(cpu, [w_0])
cpu = allocator.assign_threads(request).get_cpu()
log.info("{}".format(cpu))
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Assign another workload which will force core sharing
w_1 = get_test_workload(uuid.uuid4(), 1, STATIC)
request = get_no_usage_threads_request(cpu, [w_0, w_1])
cpu = allocator.assign_threads(request).get_cpu()
log.info("{}".format(cpu))
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(1, len(violations))
def test_assign_ten_threads_empty_cpu_ip(self):
"""
Workload 0: 10 threads --> (p:0 c:[0-7] t:[0-9])
| 1 | 1 | 1 | 1 |
| 1 | 1 | | |
| ------------- |
| 1 | 1 | 1 | 1 |
| | | | |
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 10, STATIC)
allocator.assign_threads(w)
self.assertEqual(10, len(cpu.get_claimed_threads()))
expected_thread_ids = [0, 1, 2, 3, 4, 5, 6, 7, 8, 12]
thread_ids = [thread.get_id() for thread in cpu.get_claimed_threads()]
thread_ids.sort()
self.assertEqual(expected_thread_ids, thread_ids)
def test_shared_core_violation(self):
cpu = get_cpu()
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Claim 1 thread on every core
dummy_workload_id = uuid.uuid4()
for p in cpu.get_packages():
for c in p.get_cores():
c.get_threads()[0].claim(dummy_workload_id)
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(0, len(violations))
# Assign another workload which will force core sharing
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 2, STATIC)
allocator.assign_threads(w)
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(2, len(violations))
def __assign_workload(cpu, workload):
request = AllocateThreadsRequest(cpu, workload.get_id(),
{workload.get_id(): workload}, {},
DEFAULT_TEST_REQUEST_METADATA)
return IntegerProgramCpuAllocator().assign_threads(request).get_cpu()
def __get_default_workload_manager():
cpu = get_cpu()
return WorkloadManager(cpu, MockCgroupManager(),
IntegerProgramCpuAllocator())
self.pod = None
def set_pod(self, pod: V1Pod):
self.pod = pod
def get_pod(self, pod_name: str) -> Optional[V1Pod]:
return self.pod
forecast_ip_alloc_simple = ForecastIPCpuAllocator(
TestCpuUsagePredictorManager(), ConfigManager(TestPropertyProvider({})),
OversubscribeFreeThreadProvider(0.1))
ALLOCATORS = [
NaiveCpuAllocator(),
IntegerProgramCpuAllocator(),
GreedyCpuAllocator(), forecast_ip_alloc_simple
]
OVER_ALLOCATORS = [NaiveCpuAllocator(), forecast_ip_alloc_simple]
set_workload_monitor_manager(TestWorkloadMonitorManager())
class TestCpu(unittest.TestCase):
def test_assign_one_thread_empty_cpu(self):
"""
Workload 0: 1 thread --> (p:0 c:0 t:0)
"""
for allocator in ALLOCATORS:
cpu = get_cpu()
self.assertEqual(DEFAULT_TOTAL_THREAD_COUNT,
OVERSUBSCRIBED_THREADS_KEY, STATIC_ALLOCATED_SIZE_KEY, BURST_ALLOCATED_SIZE_KEY, \
BURST_REQUESTED_SIZE_KEY, ALLOCATED_SIZE_KEY, UNALLOCATED_SIZE_KEY
from titus_isolate.model.processor.config import get_cpu
from titus_isolate.model.processor.utils import DEFAULT_TOTAL_THREAD_COUNT, is_cpu_full
from titus_isolate.monitor.oversubscribe_free_thread_provider import OversubscribeFreeThreadProvider
from titus_isolate.utils import set_config_manager, set_workload_monitor_manager
config_logs(logging.DEBUG)
set_config_manager(ConfigManager(TestPropertyProvider({})))
set_workload_monitor_manager(TestWorkloadMonitorManager())
forecast_ip_alloc_simple = ForecastIPCpuAllocator(
TestCpuUsagePredictorManager(), ConfigManager(TestPropertyProvider({})),
OversubscribeFreeThreadProvider(DEFAULT_TOTAL_THRESHOLD))
LEGACY_ALLOCATORS = [IntegerProgramCpuAllocator(), GreedyCpuAllocator()]
OVERSUBSCRIBING_ALLOCATORS = [forecast_ip_alloc_simple]
ALLOCATORS = LEGACY_ALLOCATORS + OVERSUBSCRIBING_ALLOCATORS
class TestWorkloadManager(unittest.TestCase):
def test_single_static_workload_lifecycle(self):
for allocator in ALLOCATORS:
thread_count = 2
workload = get_test_workload(uuid.uuid4(), thread_count, STATIC)
cgroup_manager = MockCgroupManager()
workload_manager = WorkloadManager(get_cpu(), cgroup_manager,
allocator)
# Add workload
def __assign_workload(cpu, workload):
request = get_no_usage_threads_request(cpu, [workload])
return IntegerProgramCpuAllocator().assign_threads(request).get_cpu()