[Misc] Fix metrics, weight update lock, request logging (#2543)

python/sglang/srt/configs/model_config.py

@@ -124,8 +124,12 @@ class ModelConfig:
         self.num_hidden_layers = self.hf_text_config.num_hidden_layers
         self.vocab_size = self.hf_text_config.vocab_size
 
+        # Veirfy quantization
         self._verify_quantization()
 
+        # Multimodel attrs
+        self.image_token_id = getattr(self.hf_config, "image_token_id", None)
+
     # adapted from https://github.com/vllm-project/vllm/blob/main/vllm/config.py#L289
     def get_total_num_kv_heads(self) -> int:
         """Returns the total number of KV heads."""