Update server args in bench speedup (#246)

* update sglang args

* Update benchmarks/bench_model_speedup.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: ispobock

benchmarks/bench_model_speedup.py

@@ -198,8 +198,11 @@ def launch_sglang_server(
     if server_args.trust_remote_code:
         sglang_args.extend(["--trust-remote-code"])
 
-    if server_args.enable_ep_moe:
-        sglang_args.extend(["--enable-ep-moe"])
+    if server_args.disable_radix_cache:
+        sglang_args.extend(["--disable-radix-cache"])
+
+    if server_args.ep_size:
+        sglang_args.extend(["--ep-size", str(server_args.ep_size)])
 
     if server_args.attention_backend:
         sglang_args.extend(["--attention-backend", server_args.attention_backend])