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{
  "schema": "pp4-round6-budget-v1",
  "classification": "ESTIMATED planning from MEASURED historical inputs; not complete PP4 blocks or a guarantee",
  "dep1_input_sha256": "9e5432d13f0a86f9caaf7d329e190f1cdf557284236bfdd37ef1439228311309",
  "cells": {
    "short-b1": {
      "observations": [
        {
          "max_decode_span_s": 26.50626343896147,
          "max_ttft_s": 1.7645618190290406,
          "measured_output_tokens": 1500,
          "sha256": "deac0950c403b7415ce7e61310d718d4b8b9fb149c3cefa6d24f1678575cd25c",
          "source": "NBW-W-20261026T231445Z/s1-K-short-b1.json"
        },
        {
          "max_decode_span_s": 28.47160706698196,
          "max_ttft_s": 2.331858152989298,
          "measured_output_tokens": 1500,
          "sha256": "daa891adf4cf907a5cd3418b36b01aaf97cfd0fcb801994785b59061eef1ee3d",
          "source": "NBW-W-20261026T231445Z/s3-K-short-b1.json"
        },
        {
          "max_decode_span_s": 27.960649574000854,
          "max_ttft_s": 2.4093480160227045,
          "measured_output_tokens": 1500,
          "sha256": "3ecc7c888b506b8c618902b7745c32b0675b49e4e221cbbf6ca2b76dc0afbc84",
          "source": "NBW-W-20261026T231445Z/s5-K-short-b1.json"
        }
      ],
      "historical_batch": 1,
      "batch_scaling": 1,
      "max_ttft_s": 2.4093480160227045,
      "max_decode_span_s": 28.47160706698196,
      "scaled_512_estimate_s": 19.115146022178664,
      "allowance_per_group_s": 20,
      "groups_per_start": 4,
      "profile_groups_per_start": 0,
      "classification": "ESTIMATED from MEASURED B1"
    },
    "32k-b1": {
      "observations": [
        {
          "max_decode_span_s": 29.4779839469702,
          "max_ttft_s": 14.812975562002975,
          "measured_output_tokens": 1500,
          "sha256": "c5331d3465fb12b15d5ba4690fba9da45769236787bdb53cd0650c959861234d",
          "source": "NBW-W-20261026T231445Z/s1-K-32k-b1.json"
        },
        {
          "max_decode_span_s": 29.47603059199173,
          "max_ttft_s": 16.56382137304172,
          "measured_output_tokens": 1500,
          "sha256": "979e7337ba5b75f4888dc0bfd403a2cb301a537f3990cf9d03f55431bd9bca82",
          "source": "NBW-W-20261026T231445Z/s3-K-32k-b1.json"
        },
        {
          "max_decode_span_s": 27.4701354339486,
          "max_ttft_s": 16.617130869999528,
          "measured_output_tokens": 1500,
          "sha256": "0aaff802c13c57a5dc551b30b7be7b0287f060894110e92d0397dac26da8d24f",
          "source": "NBW-W-20261026T231445Z/s5-K-32k-b1.json"
        }
      ],
      "historical_batch": 1,
      "batch_scaling": 1,
      "max_ttft_s": 16.617130869999528,
      "max_decode_span_s": 29.4779839469702,
      "scaled_512_estimate_s": 33.66599664511745,
      "allowance_per_group_s": 35,
      "groups_per_start": 4,
      "profile_groups_per_start": 0,
      "classification": "ESTIMATED from MEASURED B1"
    },
    "32k-b4": {
      "observations": [
        {
          "max_decode_span_s": 58.99707188201137,
          "max_ttft_s": 51.37888995197136,
          "measured_output_tokens": 1500,
          "sha256": "87c9c91c212076d1feabb9bf3ab66002eefa3ae7726d46496827203704e5b767",
          "source": "NBW-W-20261026T231445Z/s1-K-32k-b3.json"
        },
        {
          "max_decode_span_s": 58.419027732044924,
          "max_ttft_s": 51.72109578800155,
          "measured_output_tokens": 1500,
          "sha256": "a5879c7ac17144b1e1081683007375af797ffd231f9a42ce9d9f713288314fa2",
          "source": "NBW-W-20261026T231445Z/s3-K-32k-b3.json"
        },
        {
          "max_decode_span_s": 61.36587655596668,
          "max_ttft_s": 51.6934184510028,
          "measured_output_tokens": 1500,
          "sha256": "1de0febd3966a4a7b062b3f501676c22ac92e9684e1487a7133417a236db9bc5",
          "source": "NBW-W-20261026T231445Z/s5-K-32k-b3.json"
        }
      ],
      "historical_batch": 3,
      "batch_scaling": 1.3333333333333333,
      "max_ttft_s": 68.96146105066873,
      "max_decode_span_s": 81.8211687412889,
      "scaled_512_estimate_s": 103.85380076167516,
      "allowance_per_group_s": 105,
      "groups_per_start": 2,
      "profile_groups_per_start": 0,
      "classification": "ESTIMATED B3-to-B4 extrapolation, not measured B4"
    }
  },
  "startup_observations_s": [
    388,
    404
  ],
  "startup_sources": [
    {
      "locator": "Budget: Spark X start to ready 388 s",
      "path": "S49.report.md",
      "sha256": "9564a6621221c6d594835395a6853aad1ac7f575806cf71fea9abaf128475636"
    },
    {
      "locator": "2026-10-26 20:45 COORD: W8 start 404 s incl warm-up",
      "path": "LANES.md",
      "sha256": "d11f865bd2dc118478d828b19fe3979b667c448a342fc6d910a13d88426460ab"
    }
  ],
  "worker_startup_s": 333,
  "worker_source": {
    "locator": "Budget: Spark X start to ready 388 s",
    "path": "S49.report.md",
    "sha256": "9564a6621221c6d594835395a6853aad1ac7f575806cf71fea9abaf128475636"
  },
  "setup_s": 120,
  "cuts_s": 120,
  "warm_per_start_s": 30,
  "greedy_on_s": 42,
  "transition_per_start_s": 60,
  "restore_s": 720,
  "pair_bound_s": 600,
  "formula": "preserve max cold TTFT; scale max decode span by511/1499; add2s publication+5s overhead; ceil to5s; B4 extrapolates B3 TTFT and decode by4/3",
  "profiles": "Round6: no measurement companions or full-round-p95 guard; complete-round instrumentation stays in admission",
  "limits": "historical333s worker startup is separate from388\u2013404s Spark startup; no overlap credited; no sampled speed gain assumed",
  "pair_reserve": "Measurement requires hash-bound QUALIFIED admission physical-pair step; ceil(max(180s,1.5*MEASURED driver seconds)); admission/pair-only retain600s bound",
  "fallback": "Try all3cells first; if>85min drop32k-b4 only; if two B1cells still>85min refuse; no other cuts"
}