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_no_change_populated_cpu(self):
w0 = Workload(uuid.uuid4(), 4, STATIC)
cur_cpu = get_cpu()
new_cpu = get_cpu()
allocator0 = GreedyCpuAllocator(cur_cpu)
allocator0.assign_threads(w0)
allocator1 = GreedyCpuAllocator(new_cpu)
allocator1.assign_threads(w0)
self.assertFalse(has_better_isolation(cur_cpu, new_cpu))
def test_no_change_populated_cpu(self):
w0 = get_test_workload(uuid.uuid4(), 4, STATIC)
cur_cpu = get_cpu()
new_cpu = get_cpu()
allocator0 = GreedyCpuAllocator()
request = AllocateThreadsRequest(cur_cpu, w0.get_id(), {w0.get_id(): w0}, {}, DEFAULT_TEST_REQUEST_METADATA)
cur_cpu = allocator0.assign_threads(request).get_cpu()
allocator1 = GreedyCpuAllocator()
request = AllocateThreadsRequest(new_cpu, w0.get_id(), {w0.get_id(): w0}, {}, DEFAULT_TEST_REQUEST_METADATA)
new_cpu = allocator1.assign_threads(request).get_cpu()
self.assertFalse(has_better_isolation(cur_cpu, new_cpu))
def test_no_change_populated_cpu(self):
w0 = get_test_workload(uuid.uuid4(), 4, STATIC)
cur_cpu = get_cpu()
new_cpu = get_cpu()
allocator0 = GreedyCpuAllocator()
request = get_no_usage_threads_request(cur_cpu, [w0])
cur_cpu = allocator0.assign_threads(request).get_cpu()
allocator1 = GreedyCpuAllocator()
request = get_no_usage_threads_request(new_cpu, [w0])
new_cpu = allocator1.assign_threads(request).get_cpu()
self.assertFalse(has_better_isolation(cur_cpu, new_cpu))
def test_override_previous_assignment(self):
"""
Workload 0: 1 thread --> (p:0 c:0 t:0)
"""
cpu = get_cpu()
self.assertEqual(DEFAULT_TOTAL_THREAD_COUNT,
len(cpu.get_empty_threads()))
w0 = get_test_workload(uuid.uuid4(), 1, STATIC)
w1 = get_test_workload(uuid.uuid4(), 2, STATIC)
greedy_allocator = GreedyCpuAllocator()
# Assign the first workload with Greedy
request = get_no_usage_threads_request(cpu, [w0])
cpu = greedy_allocator.assign_threads(request).get_cpu()
log.info(cpu)
self.assertEqual(DEFAULT_TOTAL_THREAD_COUNT - 1,
len(cpu.get_empty_threads()))
self.assertEqual(1, len(cpu.get_claimed_threads()))
# Assign the second workload with NoopReset
request = get_no_usage_threads_request(cpu, [w0, w1])
cpu = noop_reset_allocator.assign_threads(request).get_cpu()
log.info(cpu)
self.assertEqual(0, len(cpu.get_empty_threads()))
self.assertEqual(DEFAULT_TOTAL_THREAD_COUNT,
len(cpu.get_claimed_threads()))
for t in cpu.get_threads():
self.assertEqual(2, len(t.get_workload_ids()))
self.assertTrue(w0.get_id() in t.get_workload_ids())
self.assertTrue(w1.get_id() in t.get_workload_ids())
def test_external_cpu_manipulation(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 = GreedyCpuAllocator()
w = get_test_workload(uuid.uuid4(), 2, STATIC)
workloads = {w.get_id(): w}
request = AllocateThreadsRequest(cpu, w.get_id(), workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu = allocator.assign_threads(request).get_cpu()
violations = get_shared_core_violations(cpu)
log.info("shared core violations: {}".format(violations))
self.assertEqual(2, len(violations))
def test_assign_two_threads_empty_cpu_greedy(self):
"""
Workload 0: 2 threads --> (p:0 c:0 t:0) (p:0 c:1 t:1)
"""
cpu = get_cpu()
allocator = GreedyCpuAllocator(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]
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())
def test_assign_free_threads(self):
cpu = get_cpu()
workload = get_test_workload("a", 2, STATIC)
workloads = {workload.get_id(): workload}
cpu_allocator = GreedyCpuAllocator()
self.__set_cpu_allocator(cpu_allocator)
# Assign threads
log.info("Assign threads")
cpu_in_0 = copy.deepcopy(cpu)
request = AllocateThreadsRequest(cpu_in_0, workload.get_id(),
workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu_out_0 = cpu_allocator.assign_threads(request).get_cpu()
cpu_in_1 = copy.deepcopy(cpu)
body = AllocateThreadsRequest(cpu_in_1, workload.get_id(), workloads,
{},
DEFAULT_TEST_REQUEST_METADATA).to_dict()
cpu_out_1 = self.client.put("/assign_threads",
data=json.dumps(body),
content_type='application/json')
cpu_out_1 = deserialize_response(cpu_out_1.headers,
cpu_out_1.json).get_cpu()
log.info("cpu_out_0: {}".format(cpu_out_0))
log.info("cpu_out_1: {}".format(cpu_out_1))
self.assertEqual(cpu_out_0.to_dict(), cpu_out_1.to_dict())
# Free threads
log.info("Free threads")
cpu_in_0 = copy.deepcopy(cpu_out_0)
request = AllocateThreadsRequest(cpu_in_0, workload.get_id(),
workloads, {},
DEFAULT_TEST_REQUEST_METADATA)
cpu_out_0 = cpu_allocator.free_threads(request).get_cpu()
cpu_in_1 = copy.deepcopy(cpu_out_1)
body = AllocateThreadsRequest(cpu_in_1, workload.get_id(), workloads,
{},
DEFAULT_TEST_REQUEST_METADATA).to_dict()
cpu_out_1 = self.client.put("/free_threads",
data=json.dumps(body),
content_type='application/json')
cpu_out_1 = deserialize_response(cpu_out_1.headers,
cpu_out_1.json).get_cpu()
log.info("cpu_out_0: {}".format(cpu_out_0))
log.info("cpu_out_1: {}".format(cpu_out_1))
self.assertEqual(cpu_out_0.to_dict(), cpu_out_1.to_dict())
def test_assign_free_threads(self):
cpu = get_cpu()
workload = get_test_workload("a", 2, STATIC)
cpu_allocator = GreedyCpuAllocator()
self.__set_cpu_allocator(cpu_allocator)
# Assign threads
log.info("Assign threads")
cpu_in_0 = copy.deepcopy(cpu)
request = get_no_usage_threads_request(cpu_in_0, [workload])
cpu_out_0 = cpu_allocator.assign_threads(request).get_cpu()
cpu_in_1 = copy.deepcopy(cpu)
request = get_no_usage_threads_request(cpu_in_1, [workload])
cpu_out_1 = self.client.put(
"/assign_threads",
data=json.dumps(request.to_dict()),
content_type='application/json')
cpu_out_1 = deserialize_response(cpu_out_1.headers, cpu_out_1.json).get_cpu()
log.info("cpu_out_0: {}".format(cpu_out_0))
log.info("cpu_out_1: {}".format(cpu_out_1))
self.assertEqual(cpu_out_0.to_dict(), cpu_out_1.to_dict())
# Free threads
log.info("Free threads")
cpu_in_0 = copy.deepcopy(cpu_out_0)
request = get_no_usage_threads_request(cpu_in_0, [workload])
cpu_out_0 = cpu_allocator.free_threads(request).get_cpu()
cpu_in_1 = copy.deepcopy(cpu_out_1)
request = get_no_usage_threads_request(cpu_in_1, [workload])
cpu_out_1 = self.client.put(
"/free_threads",
data=json.dumps(request.to_dict()),
content_type='application/json')
cpu_out_1 = deserialize_response(cpu_out_1.headers, cpu_out_1.json).get_cpu()
log.info("cpu_out_0: {}".format(cpu_out_0))
log.info("cpu_out_1: {}".format(cpu_out_1))
self.assertEqual(cpu_out_0.to_dict(), cpu_out_1.to_dict())