[Metrics] Log multi-modal cache stats and fix reset (#26285)

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>

vllm/v1/executor/multiproc_executor.py

@@ -33,8 +33,6 @@ from vllm.distributed.parallel_state import (
     get_tp_group,
 )
 from vllm.logger import init_logger
-from vllm.multimodal import MULTIMODAL_REGISTRY
-from vllm.multimodal.cache import worker_receiver_cache_from_config
 from vllm.utils import (
     _maybe_force_spawn,
     decorate_logs,
@@ -46,7 +44,6 @@ from vllm.utils import (
 )
 from vllm.v1.core.sched.output import SchedulerOutput
 from vllm.v1.executor.abstract import Executor, FailureCallback
-from vllm.v1.executor.utils import get_and_update_mm_cache
 from vllm.v1.outputs import AsyncModelRunnerOutput, DraftTokenIds, ModelRunnerOutput
 from vllm.v1.worker.worker_base import WorkerWrapperBase
 
@@ -422,6 +419,7 @@ class WorkerProc:
             "rank": rank,
             "distributed_init_method": distributed_init_method,
             "is_driver_worker": is_driver_worker,
+            "shared_worker_lock": shared_worker_lock,
         }
         wrapper.init_worker(all_kwargs)
         self.worker = wrapper
@@ -445,11 +443,6 @@ class WorkerProc:
             )
             self.async_output_copy_thread.start()
 
-        # Initialize multimodal receiver cache if needed
-        self.mm_receiver_cache = worker_receiver_cache_from_config(
-            vllm_config, MULTIMODAL_REGISTRY, shared_worker_lock
-        )
-
         # Initialize device
         self.worker.init_device()
 
@@ -692,12 +685,7 @@ class WorkerProc:
                     func = getattr(self.worker, method)
                 elif isinstance(method, bytes):
                     func = partial(cloudpickle.loads(method), self.worker)
-                # retrieve from shm cache if available
-                if (
-                    self.mm_receiver_cache is not None
-                    and func.__name__ == "execute_model"
-                ):
-                    get_and_update_mm_cache(self.mm_receiver_cache, args)
+
                 output = func(*args, **kwargs)
             except Exception as e:
                 # Notes have been introduced in python 3.11