{
  "study_id": "dash0-qwen30b-chat-10min-llm-run1f",
  "hardware": {
    "gpu_count": 4,
    "gpu_model": "H20",
    "host_candidates": [
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    ]
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  "model": {
    "model_id": "qwen3-30b-a3b",
    "served_model_name": "qwen3-30b-smoke"
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    "healthcheck_path": "/v1/models",
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    "request_timeout_s": 900,
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      "VLLM_FP8_USE_BLADNN": "1",
      "VLLM_MOE_USE_BLADNN": "1"
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    "base_flags": {
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      "port": 18081,
      "served-model-name": "qwen3-30b-smoke",
      "max-model-len": 65536,
      "disable-log-requests": true,
      "trust-remote-code": true
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    "tunable_envs": [
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    "tunable_flags": [
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      "max-num-seqs",
      "max-num-batched-tokens",
      "gpu-memory-utilization",
      "block-size"
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    "python_executable": "python3"
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  "trace": {
    "windows_path": "/home/admin/cpfs/wjh/aituner/aituner/trace_windows/windows.json",
    "window_id": "chat_w20260311_1000",
    "u_field": "sampling_u",
    "timestamp_field": "timestamp",
    "max_concurrency": 64,
    "replay_time_scale": 1.0,
    "early_stop_max_lag_s": 120.0,
    "early_stop_max_elapsed_s": 900.0
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    "ttft_rule": {
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        {
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    "high": 1.0,
    "tolerance": 0.1,
    "max_probes": 4,
    "sample_seed": 20260325
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  "llm": {
    "system_prompt": "Propose a single engine config patch that increases the maximum feasible sampling_u under the SLO target.",
    "max_history_trials": 8,
    "endpoint": {
      "base_url": "http://tianx.ipads-lab.se.sjtu.edu.cn:8317/v1",
      "model": "gpt-5.4",
      "api_key_env": "OPENAI_API_KEY",
      "timeout_s": 180
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}