def test_free_cpu_3_workloads(self):
# Add 3 workloads sequentially, and then remove the 2nd one added.
for allocator in ALLOCATORS:
cpu = get_cpu()
workloads = {}
w0 = get_test_workload(123, 3, STATIC)
w1 = get_test_workload(456, 2, STATIC)
w2 = get_test_workload(789, 4, STATIC)
request = get_no_usage_threads_request(cpu, [w0])
cpu = allocator.assign_threads(request).get_cpu()
request = get_no_usage_threads_request(cpu, [w0, w1])
cpu = allocator.assign_threads(request).get_cpu()
request = get_no_usage_threads_request(cpu, [w0, w1, w2])
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(3 + 4 + 2, len(cpu.get_claimed_threads()))
request = get_no_usage_threads_request(cpu, [w0, w2, w1])
cpu = allocator.free_threads(request).get_cpu()
self.assertEqual(3 + 4, len(cpu.get_claimed_threads()))
workload_ids_left = set()
for t in cpu.get_threads():
if t.is_claimed():
for w_id in t.get_workload_ids():
workload_ids_left.add(w_id)
self.assertListEqual(sorted(list(workload_ids_left)), [123, 789])
def test_balance_forecast_ip(self):
allocator = forecast_ip_alloc_simple
cpu = get_cpu()
w_a = get_test_workload("a", 2, STATIC)
w_b = get_test_workload("b", 4, BURST)
workloads = [w_a]
request = get_no_usage_threads_request(cpu, workloads)
cpu = allocator.assign_threads(request).get_cpu()
workloads = [w_a, w_b]
request = get_no_usage_threads_request(cpu, workloads)
cpu = allocator.assign_threads(request).get_cpu()
request = get_no_usage_rebalance_request(cpu, workloads)
cpu = allocator.rebalance(request).get_cpu()
self.assertLessEqual(2 + 4, len(cpu.get_claimed_threads()))
w2t = cpu.get_workload_ids_to_thread_ids()
self.assertEqual(2, len(w2t["a"]))
self.assertLessEqual(4, len(w2t["b"])) # burst got at least 4
for _ in range(20):
request = get_no_usage_rebalance_request(cpu, workloads)
cpu = allocator.rebalance(request).get_cpu()
w2t = cpu.get_workload_ids_to_thread_ids()
self.assertEqual(2, len(w2t["a"]))
self.assertLessEqual(4, len(w2t["b"]))
def test_fill_cpu(self):
"""
Workload 0: 8 cores
Workload 1: 4 cores
Workload 2: 2 cores
Workload 3: 1 core
Workload 4: 1 core
--------------------
Total: 16 cores
"""
for allocator in ALLOCATORS:
cpu = get_cpu()
workloads = [
get_test_workload("v", 8, STATIC),
get_test_workload("w", 4, STATIC),
get_test_workload("x", 2, STATIC),
get_test_workload("y", 1, STATIC),
get_test_workload("z", 1, STATIC)
]
tot_req = 0
__workloads = []
for w in workloads:
__workloads.append(w)
request = get_no_usage_threads_request(cpu, __workloads)
cpu = allocator.assign_threads(request).get_cpu()
log.info(cpu)
tot_req += w.get_thread_count()
self.assertEqual(tot_req, len(cpu.get_claimed_threads()))
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 |
| | | | |
"""
for allocator in [
IntegerProgramCpuAllocator(), forecast_ip_alloc_simple
]:
cpu = get_cpu()
w = get_test_workload(uuid.uuid4(), 10, STATIC)
request = get_no_usage_threads_request(cpu, [w])
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(10, len(cpu.get_claimed_threads()))
threads_per_socket = []
for p in cpu.get_packages():
ths = []
for c in p.get_cores():
for t in c.get_threads():
if t.is_claimed():
ths.append(t)
threads_per_socket.append(len(ths))
self.assertEqual(5, threads_per_socket[0])
self.assertEqual(5, threads_per_socket[1])
def test_assign_two_workloads_empty_cpu_greedy(self):
"""
Workload 0: 2 threads --> (p:0 c:0 t:0) (p:0 c:0 t:1)
Workload 1: 1 thread --> (p:1 c:0 t:0)
"""
cpu = get_cpu()
allocator = GreedyCpuAllocator()
w0 = get_test_workload(uuid.uuid4(), 2, STATIC)
w1 = get_test_workload(uuid.uuid4(), 1, STATIC)
request0 = get_no_usage_threads_request(cpu, [w0])
cpu = allocator.assign_threads(request0).get_cpu()
request1 = get_no_usage_threads_request(cpu, [w0, w1])
cpu = allocator.assign_threads(request1).get_cpu()
self.assertEqual(3, len(cpu.get_claimed_threads()))
packages = cpu.get_packages()
# WORKLOAD 0
core00 = packages[0].get_cores()[0]
thread0 = core00.get_threads()[0]
self.assertEqual(0, thread0.get_id())
self.assertTrue(thread0.is_claimed())
thread1 = core00.get_threads()[1]
self.assertEqual(8, thread1.get_id())
self.assertTrue(thread1.is_claimed())
# WORKLOAD 1
core00 = packages[1].get_cores()[0]
thread4 = core00.get_threads()[0]
self.assertEqual(4, thread4.get_id())
self.assertTrue(thread4.is_claimed())
def test_forecast_ip_burst_pool_with_usage(self):
class UsagePredictorWithBurst:
def __init__(self):
self.__model = TestPredictor()
def predict(self, workload: Workload,
cpu_usage_last_hour: np.array,
pred_env: PredEnvironment) -> float:
if workload.get_id() == 'static_a':
return workload.get_thread_count() * 0.8
elif workload.get_id() == 'static_b':
return workload.get_thread_count() * 0.01
elif workload.get_id() == 'burst_c':
return workload.get_thread_count() * 0.9
def get_model(self):
return self.__model
upm = TestCpuUsagePredictorManager(UsagePredictorWithBurst())
cm = ConfigManager(
TestPropertyProvider({BURST_CORE_COLLOC_USAGE_THRESH: 0.9}))
allocator = ForecastIPCpuAllocator(
upm, cm, OversubscribeFreeThreadProvider(0.1))
cpu = get_cpu(package_count=2, cores_per_package=16)
w_a = get_test_workload("static_a", 14, STATIC)
w_b = get_test_workload("static_b", 14, STATIC)
w_c = get_test_workload("burst_c", 2, BURST)
request = get_no_usage_threads_request(cpu, [w_a])
cpu = allocator.assign_threads(request).get_cpu()
request = get_no_usage_threads_request(cpu, [w_a, w_c])
cpu = allocator.assign_threads(request).get_cpu()
# with an aggressive burst pool expansion, burst should be collocated with static on cores:
self.assertLess(40, len(cpu.get_claimed_threads()))
num_burst_1 = len(cpu.get_workload_ids_to_thread_ids()[w_c.get_id()])
request = get_no_usage_threads_request(cpu, [w_a, w_c, w_b])
cpu = allocator.assign_threads(request).get_cpu()
# burst should retract, and prefer collocation with b over a:
num_burst_2 = len(cpu.get_workload_ids_to_thread_ids()[w_c.get_id()])
self.assertLessEqual(num_burst_2, num_burst_1)
colloc_a = 0
colloc_b = 0
for p in cpu.get_packages():
for c in p.get_cores():
t1 = c.get_threads()[0]
t2 = c.get_threads()[1]
if t1.is_claimed() and t2.is_claimed():
wt1 = t1.get_workload_ids()[0]
wt2 = t2.get_workload_ids()[0]
if (wt1 == w_a.get_id() and wt2 == w_c.get_id()) or (
wt1 == w_c.get_id() and wt2 == w_a.get_id()):
colloc_a += 1
elif (wt1 == w_b.get_id() and wt2 == w_c.get_id()) or (
wt1 == w_c.get_id() and wt2 == w_b.get_id()):
colloc_b += 1
self.assertLessEqual(colloc_a, colloc_b)
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)
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w0 = Workload(uuid.uuid4(), 2, STATIC)
w1 = Workload(uuid.uuid4(), 1, STATIC)
allocator.assign_threads(w0)
allocator.assign_threads(w1)
self.assertEqual(3, len(cpu.get_claimed_threads()))
packages = cpu.get_packages()
# WORKLOAD 0
core00 = packages[0].get_cores()[0]
core01 = 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())
# WORKLOAD 1
core00 = packages[1].get_cores()[0]
thread4 = core00.get_threads()[0]
self.assertEqual(4, thread4.get_id())
self.assertTrue(thread4.is_claimed())
def test_is_isolated(self):
real_allocators = [GreedyCpuAllocator(), IntegerProgramCpuAllocator()]
for allocator in real_allocators:
wm = WorkloadManager(get_cpu(), MockCgroupManager(), allocator)
self.assertFalse(wm.is_isolated(uuid.uuid4()))
for allocator in real_allocators:
workload = get_test_workload(uuid.uuid4(),
DEFAULT_TOTAL_THREAD_COUNT, STATIC)
wm = WorkloadManager(get_cpu(), MockCgroupManager(), allocator)
wm.add_workload(workload)
self.assertTrue(wm.is_isolated(workload.get_id()))
wm = WorkloadManager(get_cpu(), MockCgroupManager(),
NoopCpuAllocator())
self.assertTrue(wm.is_isolated(uuid.uuid4()))
def test_remove_unknown_workload(self):
for allocator in ALLOCATORS:
unknown_workload_id = "unknown"
thread_count = 2
workload = get_test_workload(uuid.uuid4(), thread_count, STATIC)
workload_manager = WorkloadManager(get_cpu(), MockCgroupManager(),
allocator)
# Remove from empty set
workload_manager.remove_workload(unknown_workload_id)
# Add workload
workload_manager.add_workload(workload)
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT - thread_count,
len(workload_manager.get_cpu().get_empty_threads()))
# Removal of an unknown workload should have no effect
workload_manager.remove_workload(unknown_workload_id)
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT - thread_count,
len(workload_manager.get_cpu().get_empty_threads()))
# Remove workload with unknown workload, real workload should be removed
workload_manager.remove_workload(unknown_workload_id)
workload_manager.remove_workload(workload.get_id())
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(workload_manager.get_cpu().get_empty_threads()))
def test_shared_core_violation(self):
allocator = IntegerProgramCpuAllocator()
# Claim all thread but one
cpu = get_cpu()
w = get_test_workload(uuid.uuid4(), len(cpu.get_threads()) - 1, STATIC)
workloads = {w.get_id(): w}
request = AllocateThreadsRequest(cpu, w.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
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 = get_test_workload(uuid.uuid4(), 1, STATIC)
workloads[w.get_id()] = w
request = AllocateThreadsRequest(cpu, w.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
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_single_static_workload_lifecycle(self):
for allocator_class in [
GreedyCpuAllocator, IntegerProgramCpuAllocator
]:
thread_count = 2
workload = Workload(uuid.uuid4(), thread_count, STATIC)
cgroup_manager = MockCgroupManager()
workload_manager = WorkloadManager(get_cpu(),
cgroup_manager,
allocator_class=allocator_class)
# Add workload
workload_manager.add_workload(workload)
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT - thread_count,
len(workload_manager.get_cpu().get_empty_threads()))
self.assertEqual(
1, cgroup_manager.container_update_counts[workload.get_id()])
# Remove workload
workload_manager.remove_workload(workload.get_id())
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(workload_manager.get_cpu().get_empty_threads()))
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 = get_no_usage_threads_request(cpu, [w0])
cpu = allocator.assign_threads(request0).get_cpu()
request1 = get_no_usage_threads_request(cpu, [w0, w1])
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])))
def test_single_burst_workload_lifecycle(self):
for allocator_class in [
GreedyCpuAllocator, IntegerProgramCpuAllocator
]:
thread_count = 2
workload = Workload(uuid.uuid4(), thread_count, BURST)
cgroup_manager = MockCgroupManager()
workload_manager = WorkloadManager(get_cpu(),
cgroup_manager,
allocator_class=allocator_class)
# Add workload
workload_manager.add_workload(workload)
self.assertEqual(
2, cgroup_manager.container_update_counts[workload.get_id()])
# All threads should have been assigned to the only burst workload.
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(cgroup_manager.container_update_map[workload.get_id()]))
# No threads should have been consumed from the cpu model perspective.
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(workload_manager.get_cpu().get_empty_threads()))
# Remove workload
workload_manager.remove_workload(workload.get_id())
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(workload_manager.get_cpu().get_empty_threads()))
def test_single_burst_workload_lifecycle(self):
for allocator in ALLOCATORS:
requested_thread_count = 2
workload = get_test_workload(uuid.uuid4(), requested_thread_count,
BURST)
cgroup_manager = MockCgroupManager()
workload_manager = WorkloadManager(get_cpu(), cgroup_manager,
allocator)
# Add workload
workload_manager.add_workload(workload)
self.assertEqual(
1, cgroup_manager.container_update_counts[workload.get_id()])
# More than the requested threads should have been assigned to the only burst workload.
self.assertTrue(
len(cgroup_manager.container_update_map[workload.get_id()]) >
requested_thread_count)
# Remove workload
workload_manager.remove_workload(workload.get_id())
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(workload_manager.get_cpu().get_empty_threads()))
def test_cache_ip(self):
"""
[add a=2, add b=2, remove b=2, add c=2, remove a=2, add d=2] should lead to the following cache entries:
(state=[], req=[2])
(state=[2], req=[2,2])
(state=[2,2], req=[2,0])
[cache hit]
[cache hit]
(state=[2,2], req=[2,2]) but different layout
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
allocator.assign_threads(Workload("a", 2, STATIC))
self.assertEqual(1, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.assign_threads(Workload("b", 2, STATIC))
self.assertEqual(2, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.free_threads("b")
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.assign_threads(Workload("c", 2, STATIC))
self.assertEqual(3, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.free_threads("a")
self.assertEqual(4, len(allocator._IntegerProgramCpuAllocator__cache))
allocator.assign_threads(Workload("d", 2, STATIC))
self.assertEqual(5, len(allocator._IntegerProgramCpuAllocator__cache))
def test_fill_cpu(self):
"""
Workload 0: 8 cores
Workload 1: 4 cores
Workload 2: 2 cores
Workload 3: 1 core
Workload 4: 1 core
--------------------
Total: 16 cores
"""
for allocator_class in ALLOCATORS:
cpu = get_cpu()
allocator = allocator_class(cpu)
workloads = [
Workload(uuid.uuid4(), 8, STATIC),
Workload(uuid.uuid4(), 4, STATIC),
Workload(uuid.uuid4(), 2, STATIC),
Workload(uuid.uuid4(), 1, STATIC),
Workload(uuid.uuid4(), 1, STATIC)]
tot_req = 0
for w in workloads:
allocator.assign_threads(w)
tot_req += w.get_thread_count()
self.assertEqual(tot_req, len(cpu.get_claimed_threads()))
def test_remove_unknown_workload(self):
for allocator_class in [
GreedyCpuAllocator, IntegerProgramCpuAllocator
]:
unknown_workload_id = "unknown"
thread_count = 2
workload = Workload(uuid.uuid4(), thread_count, STATIC)
workload_manager = WorkloadManager(get_cpu(),
MockCgroupManager(),
allocator_class=allocator_class)
# Remove from empty set
workload_manager.remove_workload([unknown_workload_id])
# Add workload
workload_manager.add_workload(workload)
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT - thread_count,
len(workload_manager.get_cpu().get_empty_threads()))
# Removal of an unknown workload should have no effect
workload_manager.remove_workload([unknown_workload_id])
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT - thread_count,
len(workload_manager.get_cpu().get_empty_threads()))
# Remove workload with unknown workload, real workload should be removed
workload_manager.remove_workload(unknown_workload_id)
workload_manager.remove_workload(workload.get_id())
self.assertEqual(
DEFAULT_TOTAL_THREAD_COUNT,
len(workload_manager.get_cpu().get_empty_threads()))
def test_occupies_entire_cpu(self):
cpu = get_cpu()
workload = get_test_workload("a", len(cpu.get_threads()), STATIC)
self.assertTrue(_occupies_entire_cpu(workload, cpu))
workload = get_test_workload("a", len(cpu.get_threads()) - 1, STATIC)
self.assertFalse(_occupies_entire_cpu(workload, cpu))
def test_one_cross_package_violation(self):
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator(cpu)
w = Workload(uuid.uuid4(), 9, STATIC)
allocator.assign_threads(w)
violations = get_cross_package_violations(cpu)
self.assertEqual(1, len(violations))
def test_parse_cpu(self):
cpu_in = get_cpu()
log.info("cpu_in : {}".format(cpu_in))
cpu_out = parse_cpu(cpu_in.to_dict())
log.info("cpu_out: {}".format(cpu_out))
self.assertEqual(cpu_in.to_dict(), cpu_out.to_dict())
def test_thread_allocation_computation(self):
for allocator in [IntegerProgramCpuAllocator(), GreedyCpuAllocator()]:
static_thread_count = 2
burst_thread_count = 4
w_static = get_test_workload("s", static_thread_count, STATIC)
w_burst = get_test_workload("b", burst_thread_count, BURST)
cgroup_manager = MockCgroupManager()
registry = Registry()
workload_manager = WorkloadManager(get_cpu(), cgroup_manager,
allocator)
workload_manager.set_registry(registry, {})
workload_manager.add_workload(w_static)
workload_manager.add_workload(w_burst)
workload_manager.report_metrics({})
total_thread_count = len(workload_manager.get_cpu().get_threads())
expected_burst_allocation_size = total_thread_count - static_thread_count
self.assertTrue(
gauge_value_equals(registry, ALLOCATED_SIZE_KEY,
total_thread_count))
self.assertTrue(
gauge_value_equals(registry, UNALLOCATED_SIZE_KEY, 0))
self.assertTrue(
gauge_value_equals(registry, STATIC_ALLOCATED_SIZE_KEY,
static_thread_count))
self.assertTrue(
gauge_value_equals(registry, BURST_ALLOCATED_SIZE_KEY,
expected_burst_allocation_size))
self.assertTrue(
gauge_value_equals(registry, BURST_REQUESTED_SIZE_KEY,
burst_thread_count))
self.assertTrue(
gauge_value_equals(registry, OVERSUBSCRIBED_THREADS_KEY, 0))
# Claim every thread for the burst workload which will oversubscribe the static threads
for t in workload_manager.get_cpu().get_threads():
t.claim(w_burst.get_id())
workload_manager.report_metrics({})
self.assertTrue(
gauge_value_equals(registry, ALLOCATED_SIZE_KEY,
total_thread_count))
self.assertTrue(
gauge_value_equals(registry, UNALLOCATED_SIZE_KEY, 0))
self.assertTrue(
gauge_value_equals(registry, STATIC_ALLOCATED_SIZE_KEY,
static_thread_count))
self.assertTrue(
gauge_value_equals(registry, BURST_ALLOCATED_SIZE_KEY,
total_thread_count))
self.assertTrue(
gauge_value_equals(registry, BURST_REQUESTED_SIZE_KEY,
burst_thread_count))
self.assertTrue(
gauge_value_equals(registry, OVERSUBSCRIBED_THREADS_KEY,
static_thread_count))
def test_one_cross_package_violation(self):
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
w = get_test_workload(uuid.uuid4(), 9, STATIC)
request = get_no_usage_threads_request(cpu, [w])
cpu = allocator.assign_threads(request).get_cpu()
violations = get_cross_package_violations(cpu)
self.assertEqual(1, len(violations))
def __init__(self, docker_client=MockDockerClient(), cpu=None):
if cpu is None:
cpu = get_cpu()
self.__docker_client = docker_client
self.__workload_manager = WorkloadManager(cpu, MockCgroupManager())
self.__event_logger = EventLogger()
self.__create_event_handler = CreateEventHandler(
self.__workload_manager)
self.__free_event_handler = FreeEventHandler(self.__workload_manager)
def test_filling_holes_ip(self):
"""
Initialize with fragmented placement, then fill the instance. Result should be
less fragmented, with the first workload completely filling a socket.
| a | | a | |
| | a | | a |
| ------------- |
| | a | | a |
| a | | a | |
"""
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
# Initialize fragmented workload
wa = get_test_workload(uuid.uuid4(), 8, STATIC)
p0 = cpu.get_packages()[0]
p0.get_cores()[0].get_threads()[0].claim(wa.get_id())
p0.get_cores()[1].get_threads()[1].claim(wa.get_id())
p0.get_cores()[2].get_threads()[0].claim(wa.get_id())
p0.get_cores()[3].get_threads()[1].claim(wa.get_id())
p1 = cpu.get_packages()[1]
p1.get_cores()[0].get_threads()[1].claim(wa.get_id())
p1.get_cores()[1].get_threads()[0].claim(wa.get_id())
p1.get_cores()[2].get_threads()[1].claim(wa.get_id())
p1.get_cores()[3].get_threads()[0].claim(wa.get_id())
self.assertEqual(8, len(cpu.get_empty_threads()))
# Fill the rest of the CPU
w0 = get_test_workload(uuid.uuid4(), 2, STATIC)
w1 = get_test_workload(uuid.uuid4(), 3, STATIC)
w2 = get_test_workload(uuid.uuid4(), 1, STATIC)
w3 = get_test_workload(uuid.uuid4(), 2, STATIC)
workload_map = {wa.get_id(): wa}
workloads = [w0, w1, w2, w3]
__workloads = [wa]
for w in workloads:
__workloads.append(w)
workload_map[w.get_id()] = w
request = get_no_usage_threads_request(cpu, __workloads)
cpu = allocator.assign_threads(request).get_cpu()
self.assertEqual(0, len(cpu.get_empty_threads()))
# first workload should be filling completely a socket to avoid cross-socket job layout
for package in cpu.get_packages():
if package.get_cores()[0].get_threads()[0].get_workload_ids(
) != wa.get_id():
continue
ids = [
t.get_workload_ids() for core in package.get_cores()
for t in core.get_threads()
]
self.assertListEqual(ids, [wa.get_id()] * 8)
def assign_threads(workload: Workload) -> Cpu:
cpu = get_cpu()
threads = cpu.get_threads()
total_thread_count = workload.get_thread_count(
) + workload.get_opportunistic_thread_count()
for i in range(total_thread_count):
threads[i].claim(workload.get_id())
return cpu
def test_one_cross_package_violation(self):
cpu = get_cpu()
allocator = IntegerProgramCpuAllocator()
w = get_test_workload(uuid.uuid4(), 9, STATIC)
request = AllocateThreadsRequest(cpu, w.get_id(), {w.get_id(): w}, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
violations = get_cross_package_violations(cpu)
self.assertEqual(1, len(violations))
def test_no_fallback_should_error(self):
wm = WorkloadManager(get_cpu(2, 2, 2),
MockCgroupManager(),
allocator_class=CrashingAssignAllocator,
fallback_allocator_class=None)
wm.add_workload(Workload("foo", 1, STATIC))
self.assertEqual(1, wm.get_error_count())
def __init__(self, cpu=None, allocator=IntegerProgramCpuAllocator()):
if cpu is None:
cpu = get_cpu()
self.__workload_manager = WorkloadManager(cpu, MockCgroupManager(),
allocator)
self.__create_event_handler = CreateEventHandler(
self.__workload_manager)
self.__free_event_handler = FreeEventHandler(self.__workload_manager)
self.__rebalance_event_handler = RebalanceEventHandler(
self.__workload_manager)
def test_reconcile_no_workloads(self):
cpu = get_cpu()
reconciler = Reconciler(MockCgroupManager(), EXIT_HANDLER)
reconciler.reconcile(cpu)
self.__validate_state(reconciler,
EXIT_HANDLER,
exit_code=None,
expected_success_count=1,
expected_skip_count=0)
def __test_uniform_usage(self, usage, provider):
# Assign a workload to a CPU
cpu = get_cpu()
workload = get_test_workload("a", TEST_WORKLOAD_THREAD_COUNT, STATIC)
cpu = self.__assign_workload(cpu, workload)
log.info(cpu)
w_usage = {"a": usage}
return provider.get_free_threads(cpu, {workload.get_id(): workload},
w_usage)
