{
  "scope": "Parakeet TDT Vulkan resident decoder state and graph allocation lifetimes; independent of PRs #861 and #863",
  "upstream_base": "86a51cab",
  "platform": "Windows, Ryzen 7950X3D, 8 threads, RTX 3090; MSVC 14.43, CUDA 12.4, Vulkan SDK 1.4.350",
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    "src/community_models/parakeet_tdt/encoder.cpp": "f3da2f1bc9dd3edc66523d24cc663c71c726106ed92cc6540da30b403a039b2d"
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      "path": "models/Phonon-2-Parakeet-GGUF/phonon-2-q8_0.gguf",
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      "sha256": "074e61ac1abd3d3efcfc10798d17bf9a975b31768b466fc2578364d206dde64c"
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    "timing": "Warm HTTP wall time, excluding loading; alternating before/after/before/after processes; 2 warmups then 9 measured requests per clip per process; medians over 18 samples per implementation/clip",
    "memory": "NVML device-wide peak sampled at 20 ms minus pre-process desktop baseline; includes weights, activations, decoder state and driver allocations; ranges retain both trial peaks",
    "composition": "Performance/120-case matrix compares minimal Phonon PR plus only this two-file optimization to the same minimal PR without it. Stock package routes retain their defaults. Independent upstream-based build separately validates stock Parakeet offline/streaming without either PR."
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  "raw_artifacts": "outputs/phonon2-review-20261010/",
  "limitations": [
    "Sampled parity is not corpus-level WER validation",
    "Memory samples may miss short peaks or include unrelated desktop/driver activity",
    "CPU/CUDA controls use unchanged host-state path; observed timing differences do not establish a speedup or regression",
    "No local Metal, HIP, MUSA or RTX 5090 runtime test; other backends are not optimized by this PR"
  ]
}