Support penalty in overlap mode; return logprob with chunked prefill; improve benchmark scripts (#3988)

Co-authored-by: SangBin Cho <rkooo567@gmail.com>
Co-authored-by: dhou-xai <dhou@x.ai>
Co-authored-by: Hanming Lu <hanming_lu@berkeley.edu>

python/sglang/global_config.py

@@ -34,11 +34,9 @@ class GlobalConfig:
         self.skip_special_tokens_in_output = True
         self.spaces_between_special_tokens_in_out = True
 
-        # Interpreter optimization configs
+        # Language frontend interpreter optimization configs
         self.enable_precache_with_tracing = True
         self.enable_parallel_encoding = True
 
-        self.enable_flashinfer_mla = False
-
 
 global_config = GlobalConfig()