{
  "root": "outputs/optimization-r3-compact",
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        "peak_mlx_bytes": 32159138472
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      "reduction_pct": 2.808711421137755
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    "portrait": {
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      "reduction_pct": 4.3188390289921275
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  "all_pixel_identical": true,
  "all_trace_identical": true,
  "scope": "Paired warm complete generation including encoding-cache checks, six heads, decode, trace/PNG save. Parent physical footprint sampled every 100ms; both compiled variants can be resident."
}