[PD+PP] Honor PP consensus for bootstrap and prealloc (#31869)

Co-authored-by: Chao Shi <chao.shi@alibaba-inc.com>

test/registered/unit/disaggregation/test_decode_queue_cleanup.py

@@ -40,6 +40,7 @@ class TestDecodeQueueCleanup(CustomTestCase):
         decode_req = SimpleNamespace(req=req, kv_receiver=receiver)
 
         queue = DecodePreallocQueue.__new__(DecodePreallocQueue)
+        queue.pp_size = 1
         queue.queue = [decode_req]
         queue.pending_reqs = []
         queue.retracted_queue = []
@@ -86,6 +87,7 @@ class TestDecodeQueueCleanup(CustomTestCase):
         decode_req = SimpleNamespace(req=req, kv_receiver=receiver)
 
         queue = DecodePreallocQueue.__new__(DecodePreallocQueue)
+        queue.pp_size = 1
         queue.queue = [decode_req]
         queue.pending_reqs = [decode_req]  # same object, dual ownership
         queue.retracted_queue = []

test/registered/unit/managers/test_priority_scheduling_disaggregation.py

@@ -119,6 +119,7 @@ class TestDecodePreallocQueuePriority(unittest.TestCase):
 
     def _new_queue(self, decode_reqs, *, low_priority_values_first: bool = False):
         queue = DecodePreallocQueue.__new__(DecodePreallocQueue)
+        queue.pp_size = 1
         queue.queue = list(decode_reqs)
         queue.pending_reqs = []
         queue.retracted_queue = []

test/registered/unit/mem_cache/test_decode_radix_lock_ref.py

@@ -294,6 +294,7 @@ class TestDecodeLockRefScenarios(unittest.TestCase):
 
     def test_pop_preallocated_rechecks_budget_after_lock(self):
         queue = DecodePreallocQueue.__new__(DecodePreallocQueue)
+        queue.pp_size = 1
 
         req = MagicMock()
         req.rid = "req-1"