Add ReplayServe Frontier vLLM alignment report

configs/rs3_tiny_sweep.json

@@ -0,0 +1,51 @@
+{
+  "suite_id": "rs3_tiny_smoke",
+  "sim": "frontier_patched",
+  "frontier": {
+    "root": "/tmp/replayserve-frontier-rs1b",
+    "mode": "patched_scratch",
+    "patch": "patches/frontier-vllm-v1-prefix-cache-chunked-prefill.patch"
+  },
+  "fixtures": [
+    "coder_100"
+  ],
+  "defaults": {
+    "simulation_mode": "online",
+    "sys_arch": "co-location",
+    "cluster_scheduler": "sticky_round_robin",
+    "replica_scheduler": "vllm_v1",
+    "model_name": "Qwen/Qwen3-32B",
+    "device": "a800",
+    "network_device": "a800_dgx",
+    "attn_tensor_parallel_size": 2,
+    "attn_data_parallel_size": 1,
+    "moe_tensor_parallel_size": 1,
+    "moe_expert_parallel_size": 1,
+    "num_pipeline_stages": 1,
+    "num_replicas": 1,
+    "batch_size_cap": 128,
+    "max_tokens_in_batch": 32768,
+    "block_size": 16,
+    "enable_prefix_caching": true,
+    "enable_chunked_prefill": true,
+    "long_prefill_token_threshold": 64,
+    "trace_max_tokens": 32768,
+    "num_blocks_mode": "memory_planner",
+    "gpu_memory_utilization": 0.9,
+    "non_kv_cache_overhead_bytes": 0,
+    "dummy_execution_time_ms": 1.0
+  },
+  "configs": [
+    {
+      "id": "fixed_prefix_on",
+      "description": "RS1 fixed config on patched Frontier scratch."
+    },
+    {
+      "id": "prefix_cache_off",
+      "description": "Diagnosis/control config with prefix cache disabled; all other fixed scheduler knobs unchanged.",
+      "overrides": {
+        "enable_prefix_caching": false
+      }
+    }
+  ]
+}