Fix stop_profile does not wait for finishing (#4741)

python/sglang/srt/entrypoints/engine.py

@@ -321,7 +321,8 @@ class Engine(EngineBase):
         loop.run_until_complete(self.tokenizer_manager.start_profile())
 
     def stop_profile(self):
-        self.tokenizer_manager.stop_profile()
+        loop = asyncio.get_event_loop()
+        loop.run_until_complete(self.tokenizer_manager.stop_profile())
 
     def get_server_info(self):
         loop = asyncio.get_event_loop()

python/sglang/srt/entrypoints/http_server.py

@@ -355,7 +355,7 @@ async def start_profile_async(obj: Optional[ProfileReqInput] = None):
 @app.api_route("/stop_profile", methods=["GET", "POST"])
 async def stop_profile_async():
     """Stop profiling."""
-    _global_state.tokenizer_manager.stop_profile()
+    await _global_state.tokenizer_manager.stop_profile()
     return Response(
         content="Stop profiling. This will take some time.\n",
         status_code=200,