[BugFix]Fix performance serving benchmark when enable profiling (vllm-project#14737)

Signed-off-by: wangli <[email protected]>
Signed-off-by: Richard Liu <[email protected]>

Author: Potabk

benchmarks/backend_request_func.py

@@ -333,7 +333,7 @@ async def async_request_openai_chat_completions(
 ) -> RequestFuncOutput:
     api_url = request_func_input.api_url
     assert api_url.endswith(
-        "chat/completions"
+        ("chat/completions", "profile")
     ), "OpenAI Chat Completions API URL must end with 'chat/completions'."
 
     async with aiohttp.ClientSession(trust_env=True,