diff --git a/python/sglang/srt/mem_cache/memory_pool.py b/python/sglang/srt/mem_cache/memory_pool.py
index b76d84d9a..126d03ab8 100644
--- a/python/sglang/srt/mem_cache/memory_pool.py
+++ b/python/sglang/srt/mem_cache/memory_pool.py
@@ -340,6 +340,7 @@ class MHATokenToKVPool(KVCache):
             cache_v = cache_v.view(self.store_dtype)
 
         if self.capture_mode and cache_k.shape[0] < 4:
+            # Overlap the copy of K and V cache for small batch size
             current_stream = self.device_module.current_stream()
             self.alt_stream.wait_stream(current_stream)
             with self.device_module.stream(self.alt_stream):
diff --git a/python/sglang/srt/utils.py b/python/sglang/srt/utils.py
index 1ba9f38f7..f70c7e9ec 100644
--- a/python/sglang/srt/utils.py
+++ b/python/sglang/srt/utils.py
@@ -481,6 +481,7 @@ def suppress_other_loggers():
     logging.getLogger("vllm.distributed.device_communicators.shm_broadcast").setLevel(
         logging.WARN
     )
+    logging.getLogger("vllm.config").setLevel(logging.ERROR)
 
     warnings.filterwarnings(
         "ignore", category=UserWarning, message="The given NumPy array is not writable"
@@ -527,10 +528,11 @@ def kill_process_tree(parent_pid, include_parent: bool = True, skip_pid: int = N
             pass
 
     if include_parent:
-        if parent_pid == os.getpid():
-            sys.exit(0)
-
         try:
+            if parent_pid == os.getpid():
+                itself.kill()
+                sys.exit(0)
+
             itself.kill()
 
             # Sometime processes cannot be killed with SIGKILL (e.g, PID=1 launched by kubernetes),
diff --git a/test/srt/test_eval_fp8_accuracy.py b/test/srt/test_eval_fp8_accuracy.py
index 8d3c5c00c..07eb4dc04 100644
--- a/test/srt/test_eval_fp8_accuracy.py
+++ b/test/srt/test_eval_fp8_accuracy.py
@@ -36,7 +36,7 @@ class TestEvalFP8Accuracy(unittest.TestCase):
         )
 
         metrics = run_eval(args)
-        self.assertGreaterEqual(metrics["score"], 0.62)
+        self.assertGreaterEqual(metrics["score"], 0.61)
 
 
 class TestEvalFP8DynamicQuantAccuracy(unittest.TestCase):