Benchmarks

The benchmarks separate one-time cache construction from repeated use.

Published caches

Cache | States | Accounts | Offsets | Size | Build |

— | —: | —: | —: | —: | —: |

TSA41 | 5,273 | 26 | 50 | 2.85 GB | 10,991 s |

TSA08 | 3,761 | 26 | 50 | 2.03 GB | 7,552 s |

Consumer measurements

Measured with fresh-cbm-bench, one target cell (carbon.system.total at year 49), all blocks in the landscape, 100 random lookups:

Cache | Blocks | Load | Median lookup | Effect projection |

— | —: | —: | —: | —: |

TSA41 | 148,828 | 0.018 s | 0.85 ms | 2.33 s |

TSA08 | 371,565 | 0.032 s | 1.18 ms | 4.96 s |

The projection includes fragment area weighting and state lookup. It is the phase that replaces repeated CarbonLedger.prepare work in the consumer.

Reproduce

fresh-cbm-bench \
  --cache cache/tsa41-cc-offsets \
  --dataset /path/to/tsa41-p120-matrix-full \
  --account carbon.system.total \
  --year 49 \
  --offset 0 \
  --repeats 100 \
  --out notes/reports/benchmark-tsa41.json

The JSON record contains the full measurements.

Limits

• lookup timing includes the memmap open/read path used by the client;

• the projection covers carbon cells only;

• build time is reported in the cache manifest, not rerun by the benchmark;

• exact whole-schedule WS4 replay is outside this benchmark.