{
  "job_id": "2328a8ab",
  "saved_at": "2026-05-26T18:42:40.790622",
  "visitor_key": null,
  "mode": "both",
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    "transcode": {
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      "duration_s": 65.7,
      "ffmpeg_cmd": "nice -n -5 /usr/local/bin/ffmpeg-master -y -i /tmp/wattlab_uploads/2328a8ab_in.mp4 -c:v libx265 -b:v 2000k -vf scale=-2:1080 -c:a aac -b:a 128k /tmp/wattlab_uploads/2328a8ab_h265_cpu_out.mp4 -progress pipe:1 -nostats",
      "ffmpeg_version": "ffmpeg version N-124403-g28ecb07e55-20260507 Copyright (c) 2000-2026 the FFmpeg developers",
      "stderr": ""
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    "output_size_mb": 28.71,
    "energy": {
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      "task_samples_w": [
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        "method": "ci",
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        ],
        "flag": "\ud83d\udfe2",
        "label": "Repeatable"
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          "source": "live",
          "fetched_at": 1779813702.2103114,
          "age_s": 1660,
          "zone": "FR",
          "zone_label": "Paris (France)",
          "provider": "Eco2mix (RTE/Etalab)",
          "provider_url": "https://www.rte-france.com/eco2mix",
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            "eolien": 934,
            "solaire": 11184,
            "hydraulique": 7699,
            "bioenergies": 1035,
            "gaz": 477,
            "charbon": 0,
            "fioul": 33,
            "pompage": -771
          }
        }
      }
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      "cpu_peak": 74.2,
      "cpu_mean": 70.2,
      "gpu_base": 43.0,
      "gpu_peak": 43.0,
      "gpu_mean": 43.0,
      "gpu_ppt_mean_w": 3.0,
      "gpu_ppt_peak_w": 4.0
    },
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      "success": true,
      "duration_s": 13.5,
      "ffmpeg_cmd": "nice -n -5 /usr/local/bin/ffmpeg-master -y -hwaccel vaapi -hwaccel_output_format vaapi -extra_hw_frames 32 -vaapi_device /dev/dri/renderD128 -i /tmp/wattlab_uploads/2328a8ab_in.mp4 -vf scale_vaapi=w=-2:h=1080:format=nv12 -c:v hevc_vaapi -b:v 2000k -c:a aac -b:a 128k /tmp/wattlab_uploads/2328a8ab_h265_gpu_out.mp4 -progress pipe:1 -nostats",
      "ffmpeg_version": "ffmpeg version N-124403-g28ecb07e55-20260507 Copyright (c) 2000-2026 the FFmpeg developers",
      "stderr": ""
    },
    "output_size_mb": 31.44,
    "energy": {
      "w_base": 60.62,
      "w_task": 149.39,
      "delta_w": 88.77,
      "delta_t_s": 13.6,
      "delta_e_wh": 0.3354,
      "poll_count": 13,
      "baseline_samples_w": [
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      "task_samples_w": [
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        "method": "ci",
        "confidence_positive": 1.0,
        "se_final_w": 11.453,
        "ci_delta_w_95": [
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          111.221
        ],
        "flag": "\ud83d\udfe2",
        "label": "Repeatable"
      },
      "co2e": {
        "grams": 0.00912288,
        "intensity": {
          "g_per_kwh": 27.2,
          "source": "live",
          "fetched_at": 1779813702.2103114,
          "age_s": 1660,
          "zone": "FR",
          "zone_label": "Paris (France)",
          "provider": "Eco2mix (RTE/Etalab)",
          "provider_url": "https://www.rte-france.com/eco2mix",
          "mix_mw": {
            "nucleaire": 40118,
            "eolien": 934,
            "solaire": 11184,
            "hydraulique": 7699,
            "bioenergies": 1035,
            "gaz": 477,
            "charbon": 0,
            "fioul": 33,
            "pompage": -771
          }
        }
      }
    },
    "thermals": {
      "cpu_base": 62.5,
      "cpu_peak": 62.8,
      "cpu_mean": 62.5,
      "gpu_base": 43.0,
      "gpu_peak": 54.0,
      "gpu_mean": 52.0,
      "gpu_ppt_mean_w": 64.8,
      "gpu_ppt_peak_w": 73.0
    },
    "vmaf": 84.56
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  "analysis": {
    "energy_winner": "GPU",
    "speed_winner": "GPU",
    "energy_diff_pct": 74.4,
    "speed_diff_pct": 79.3,
    "finding": "GPU used 74.4% less energy (1.3122 vs 0.3354 Wh). GPU was 79.3% faster (65.8s vs 13.6s). GPU was both faster and more energy-efficient on this workload. CPU peaked at 74.2\u00b0C (Tctl), GPU junction at 54.0\u00b0C. GPU self-reported mean power (PPT): 64.8W \u2014 cross-check against P110 delta (88.77W total system delta).",
    "confidence_note": "Both runs \ud83d\udfe2 Repeatable.",
    "quality_note": "CPU higher perceptual quality \u2014 VMAF 91.61 vs 84.56 (\u03947.05)."
  },
  "scope": "Device layer only (GoS1 server). Network, CDN, CPE excluded.",
  "owl_version": {
    "version": "0.4.0",
    "sha": "a0bba8c",
    "dirty": true,
    "built_at": "2026-05-22"
  }
}