| --- |
| license: other |
| task_categories: |
| - other |
| language: |
| - en |
| tags: |
| - benchmarking |
| - parquet |
| - compression |
| - flight-data |
| - market-data |
| - time-series |
| - tsbs |
| - telemetry |
| size_categories: |
| - 100M<n<1B |
| --- |
| |
| # Acta benchmark data |
|
|
| Canonical large artifacts for reproducing real-data Acta v0.2 benchmarks. |
| The converters, schema mappings, commands, checksums, validation procedures, |
| and measured results live in the |
| [Acta GitHub repository](https://github.com/chengus/Acta/tree/main/benchmarks/v0.2). |
|
|
| ## Contents |
|
|
| ### `bts_flight/v0.2/` |
| |
| - `bts_flights_15750000.parquet`: 15,750,000 rows, 51 columns, 381,644,436 bytes; |
| - `bts_flights_15750000.acta`: adaptive Acta v0.2 output using Zstandard level 6, 325,340,952 bytes; |
| - `manifest.json`: source archive URLs, source checksums, row counts, and the Parquet checksum; |
| - `benchmark.json`: the recorded Acta checksum, compression level, and benchmark result. |
| |
| ### `market_deltas/v0.2/` |
|
|
| - `deltas.parquet`: original 239,246,024-row, 13-column ClickHouse Parquet export, 2,057,215,095 bytes; |
| - `deltas.acta`: fixed-schema Acta v0.2 output using fixed raw encoding and Zstandard level 1, 1,773,915,800 bytes; |
| - `benchmark.json`: schemas, options, checksums, environment, and measured conversion result; |
| - `conversion.stats.txt`: the converter's persisted beginning and final statistics. |
|
|
| ### `tsbs_iot/v0.2/` |
| |
| - `tsbs_iot_10m_source.txt`: the pinned-seed TSBS TimescaleDB-format source stream; |
| - `tsbs_iot_10m.parquet`: the normalized 10,000,000-row, 20-column input used by all target writers; |
| - `tsbs_iot_10m.acta`: Acta v0.2 output using adaptive encoding and Zstandard level 1; |
| - `tsbs_iot_10m.parquet.target`: Parquet target-format output using 65,536-row groups and Zstandard level 1; |
| - `tsbs_iot_10m.csv`: UTF-8 CSV target-format output with the same schema and rows; |
| - `manifest.json`: TSBS revision, generator parameters, source and normalized-input checksums; |
| - `benchmark.json` and `benchmark.md`: write/read metrics, output checksums, and environment. |
|
|
| ## Checksums |
|
|
| ```text |
| 33c7d1fd28faa95d002e05ebf778e6345c4eb1c9d39416224ee08967bad23f27 bts_flights_15750000.parquet |
| ee5c07e11197665895065d3b998f30d2a3984bd6920e9121d04db67e55821d29 bts_flights_15750000.acta |
| 7f2e8dfc86f161737b038c81ce4dbc6b3e0a9fdf4bcc19e36b931490f3218c2a deltas.parquet |
| d5c1d8d1654d8b9373e0225685989e7a49cb65338fd2c84969deb24c75ba8f43 deltas.acta |
| ``` |
|
|
| ## Provenance and use |
|
|
| The BTS Parquet input is a curated, strongly typed subset of the U.S. Bureau |
| of Transportation Statistics Reporting Carrier On-Time Performance data. The |
| original monthly archives are available from the |
| [BTS PREZIP archive](https://transtats.bts.gov/PREZIP/). This dataset is not an |
| official BTS publication. |
|
|
| The market deltas input is the original user-supplied Parquet export used for |
| the benchmark. Its Parquet metadata identifies ClickHouse 26.4.1 as the |
| writer. It contains event timestamps, worker and venue identifiers, market and |
| instrument keys, outcome and book-side labels, price, size, and update kind. |
| No broader source attribution or license was embedded in the file, so users |
| must establish that their intended use is permitted. |
|
|
| These artifacts are provided for software benchmarking and format validation. |
| Users should review the source data's terms, attribution requirements, and |
| suitability before redistribution or use. |
|
|
| ## TSBS provenance and reproduction |
|
|
| The TSBS IoT artifact uses the official [`timescale/tsbs`](https://github.com/timescale/tsbs) |
| source at revision `8323e59c74027b108f4ad5ec5d3e498b0101a02e`, the `iot` use case, |
| TimescaleDB serialization, seed `123`, scale `550`, a 10-second interval, and |
| the first 10,000,000 measurement rows from the generated stream. The Acta |
| repository contains the normalization and benchmark commands in |
| [`benchmarks/v0.2/2_tsbs_iot_devops/README.md`](https://github.com/chengus/Acta/tree/main/benchmarks/v0.2/2_tsbs_iot_devops). |
| The generated source stream is retained here so the exact normalized slice can |
| be independently checked; it is not needed when reproducing from the pinned |
| generator configuration. |
|
|
| ### `clickbench_hits/v0.2/` |
| |
| - `hits.parquet`: the ClickHouse ClickBench `hits`-compatible source artifact, |
| 99,997,497 rows and 105 columns; |
| - `hits.acta`: the recorded Acta v0.2 target produced by the writer-only |
| benchmark; |
| - `hits_1m.csv`: a retained 1,000,000-row CSV sample used to estimate the full |
| CSV size; |
| - `benchmark.json` and `benchmark.md`: Acta write/read metrics, source-size |
| baselines, CSV size extrapolation, checksums, and environment; |
| - `README.md`: exact reproduction instructions and timing scope. |
|
|
| The benchmark writes and reads Acta. The original Parquet is used as the size |
| baseline, with Parquet throughput left unmeasured. Plain CSV throughput is also |
| left unmeasured because the estimated complete CSV is approximately 75 GiB; |
| its size is extrapolated from a 1,000,000-row sample. |
|
|
| Recorded checksums and sizes: |
|
|
| ```text |
| hits.parquet 14,779,976,446 bytes a390f6cb782f6aaef278c72fc1dd86c4f30bc843ebab3c159e9bd4d45ddb079f |
| hits.acta 8,955,412,072 bytes 44a3aaf872cb6cd0318a6537b104ff26214d2738e8c9e7821a7f1bebd10ebad3 |
| hits_1m.csv 801,653,457 bytes 8355799f72ed09d03af458e4456ad8e2057533c809ceebfbb91f316b2d27bea5 |
| ``` |
|
|
| The ClickBench source and workload are documented in the official |
| [`ClickHouse/ClickBench`](https://github.com/ClickHouse/ClickBench) repository. |
| The published Parquet is retained as the reproduction input; the Acta |
| repository contains the target writer and CSV-streaming harness. |
|
|
