$ C:\quantdiff\llama.cpp\bin\llama-bench.exe -m C:\quantdiff\dl\campaign\fd4730dd8aad\Qwen3.8-27B-UD-Q2_K_XL.gguf -ngl 999 -fa 1 -p 512 -n 128 -r 5 -t 8 -o json
# started 2026-10-22T09:46:13Z
ggml_cuda_init: found 1 CUDA devices (Total VRAM: 12199 MiB):
  Device 0: NVIDIA GeForce RTX 5070, compute capability 12.0, VMM: yes, VRAM: 12199 MiB
load_backend: loaded CUDA backend from C:\quantdiff\llama.cpp\bin\ggml-cuda.dll
load_backend: loaded RPC backend from C:\quantdiff\llama.cpp\bin\ggml-rpc.dll
load_backend: loaded CPU backend from C:\quantdiff\llama.cpp\bin\ggml-cpu-haswell.dll
[
  {
    "build_commit": "39da130fc",
    "build_number": 11770,
    "cpu_info": "AMD Ryzen 7 5800X 8-Core Processor             ",
    "gpu_info": "NVIDIA GeForce RTX 5070",
    "backends": "CUDA",
    "model_filename": "C:\\quantdiff\\dl\\campaign\\fd4730dd8aad\\Qwen3.8-27B-UD-Q2_K_XL.gguf",
    "model_type": "qwen35 27B Q2_K - Medium",
    "model_size": 9817985024,
    "model_n_params": 27320697856,
    "n_batch": 2048,
    "n_ubatch": 512,
    "n_threads": 8,
    "cpu_mask": "0x0",
    "cpu_strict": false,
    "poll": 50,
    "type_k": "f16",
    "type_v": "f16",
    "n_gpu_layers": 999,
    "n_cpu_moe": 0,
    "split_mode": "layer",
    "main_gpu": 0,
    "no_kv_offload": false,
    "flash_attn": 1,
    "devices": "auto",
    "tensor_split": "0.00",
    "tensor_buft_overrides": "none",
    "load_mode": "auto",
    "lazy_mode": "auto",
    "embeddings": false,
    "no_op_offload": 0,
    "no_host": false,
    "repack": true,
    "fit_target": 0,
    "fit_min_ctx": 0,
    "n_prompt": 512,
    "n_gen": 0,
    "n_depth": 0,
    "test_time": "2026-10-22T09:46:17Z",
    "avg_ns": 368603140,
    "stddev_ns": 6808303,
    "avg_ts": 1389.397824,
    "stddev_ts": 25.043100,
    "samples_ns": [ 380779400, 365450600, 365660600, 365384700, 365740400 ],
    "samples_ts": [ 1344.61, 1401.01, 1400.21, 1401.26, 1399.9 ]
  },
  {
    "build_commit": "39da130fc",
    "build_number": 11770,
    "cpu_info": "AMD Ryzen 7 5800X 8-Core Processor             ",
    "gpu_info": "NVIDIA GeForce RTX 5070",
    "backends": "CUDA",
    "model_filename": "C:\\quantdiff\\dl\\campaign\\fd4730dd8aad\\Qwen3.8-27B-UD-Q2_K_XL.gguf",
    "model_type": "qwen35 27B Q2_K - Medium",
    "model_size": 9817985024,
    "model_n_params": 27320697856,
    "n_batch": 2048,
    "n_ubatch": 512,
    "n_threads": 8,
    "cpu_mask": "0x0",
    "cpu_strict": false,
    "poll": 50,
    "type_k": "f16",
    "type_v": "f16",
    "n_gpu_layers": 999,
    "n_cpu_moe": 0,
    "split_mode": "layer",
    "main_gpu": 0,
    "no_kv_offload": false,
    "flash_attn": 1,
    "devices": "auto",
    "tensor_split": "0.00",
    "tensor_buft_overrides": "none",
    "load_mode": "auto",
    "lazy_mode": "auto",
    "embeddings": false,
    "no_op_offload": 0,
    "no_host": false,
    "repack": true,
    "fit_target": 0,
    "fit_min_ctx": 0,
    "n_prompt": 0,
    "n_gen": 128,
    "n_depth": 0,
    "test_time": "2026-10-22T09:46:20Z",
    "avg_ns": 2663204860,
    "stddev_ns": 5071686,
    "avg_ts": 48.062533,
    "stddev_ts": 0.091320,
    "samples_ns": [ 2672071500, 2661375400, 2659647800, 2662517300, 2660412300 ],
    "samples_ts": [ 47.9029, 48.0954, 48.1267, 48.0748, 48.1128 ]
  }
]

# exit 0 after 20s