diff --git a/benchmark/hicache/bench_multiturn.py b/benchmark/hicache/bench_multiturn.py
index 5b8d706a3..5e954ecd6 100644
--- a/benchmark/hicache/bench_multiturn.py
+++ b/benchmark/hicache/bench_multiturn.py
@@ -9,6 +9,7 @@ from datetime import datetime
 from typing import Optional
 
 import aiohttp
+import numpy as np
 import requests
 from tqdm.asyncio import tqdm
 
@@ -97,6 +98,30 @@ def parse_args():
         default="performance_metrics.jsonl",
         help="File to log performance metrics",
     )
+    parser.add_argument(
+        "--disable-auto-run",
+        action="store_true",
+        help="If set, disable automatically testing with a range of request rates.",
+    )
+
+    parser.add_argument(
+        "--disable-random-sample",
+        action="store_true",
+        help="If set, disable random sampling of requests from the ShareGPT dataset.",
+    )
+    parser.add_argument(
+        "--sub-question-input-length",
+        type=int,
+        default=0,
+        help="Length of the sub question input for each request, if set 0 use request_length",
+    )
+    parser.add_argument(
+        "--ready-queue-policy",
+        type=str,
+        default="random",
+        help="Policy for popping requests from the ready queue (random or fifo)",
+    )
+    parser.add_argument("--seed", type=int, default=1, help="The random seed.")
     return parser.parse_args()
 
 
@@ -234,13 +259,29 @@ class WorkloadGenerator:
         self.candidate_inputs = sample_random_requests(
             input_len=args.request_length,
             output_len=args.output_length,
-            num_prompts=args.num_clients * args.num_rounds,
+            num_prompts=args.num_clients,
             range_ratio=1.0,
             tokenizer=self.tokenizer,
             dataset_path=args.dataset_path,
+            random_sample=not args.disable_random_sample,
         )
         self.candidate_inputs = [i.prompt for i in self.candidate_inputs]
 
+        if args.sub_question_input_length != 0:
+            sub_question_input_length = args.sub_question_input_length
+        else:
+            sub_question_input_length = args.request_length
+
+        self.sub_question_inputs = sample_random_requests(
+            input_len=sub_question_input_length,
+            output_len=args.output_length,
+            num_prompts=args.num_clients * max(args.num_rounds - 1, 1),
+            range_ratio=1.0,
+            tokenizer=self.tokenizer,
+            dataset_path=args.dataset_path,
+            random_sample=not args.disable_random_sample,
+        )
+
         init_requests = [
             (i, gen_payload(self.candidate_inputs[i], args.output_length))
             for i in range(args.num_clients)
@@ -249,7 +290,9 @@ class WorkloadGenerator:
             i: {"round": 0, "history": init_requests[i][1]["text"]}
             for i in range(args.num_clients)
         }
-        self.ready_queue = ReadyQueue(init_requests=init_requests)
+        self.ready_queue = ReadyQueue(
+            init_requests=init_requests, policy=args.ready_queue_policy
+        )
         self.candidate_inputs = self.candidate_inputs[args.num_clients :]
 
         self.response_queue = queue.Queue()
@@ -314,9 +357,10 @@ class WorkloadGenerator:
                 self.completed_requests += 1
 
                 if self.client_records[client_id]["round"] < args.num_rounds:
+                    # append new request to client's history
                     self.client_records[client_id][
                         "history"
-                    ] += self.candidate_inputs.pop()
+                    ] += self.sub_question_inputs.pop()
                     self.ready_queue.append(
                         (
                             client_id,
@@ -329,6 +373,9 @@ class WorkloadGenerator:
             except queue.Empty:
                 if self.pbar.n == self.pbar.total:
                     break
+            except ValueError as e:
+                print(f"Error processing response for client {client_id}: {e}")
+                continue
 
     def run(self):
         request_thread = threading.Thread(target=self.request_sender, daemon=True)
@@ -388,8 +435,18 @@ if __name__ == "__main__":
     args = parse_args()
     flush_cache_url = f"http://{args.host}:{args.port}/flush_cache"
 
-    for request_rate in [16, 14, 12, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]:
-        args.request_rate = request_rate
+    random.seed(args.seed)
+    np.random.seed(args.seed)
+
+    if args.disable_auto_run:
+        print("Running with specified request rate...")
+        request_rates = [args.request_rate]
+    else:
+        print("Auto-running with different request rates...")
+        request_rates = [16, 14, 12, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]
+
+    for rate in request_rates:
+        args.request_rate = rate
         requests.post(flush_cache_url)
         time.sleep(1)
         WorkloadGenerator(args).run()