doc(bench): add the 3-stream BerlinMOD streaming benchmark catalog and timings#30
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estebanzimanyi merged 5 commits intoJun 5, 2026
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…d timings The streaming sibling of the cross-platform BerlinMOD benchmark, under BerlinMOD/benchmarks/streaming/. It defines the streaming query set (a 9-query subset of the BerlinMOD intents in continuous, windowed, and snapshot forms across Flink, Kafka, and NebulaStream), records the snapshot-equals-batch bridge to the 3-DB benchmark, and specifies the engine-agnostic result schema the three harnesses emit. The cross-platform timing table is seeded with the measured MobilityFlink figures; the Nebula and Kafka columns are not yet measured.
…nstants and add parity The cross-platform streaming timings carry the MobilityFlink figures on the real BerlinMOD instants corpus (216075 events, reprojected 3857→4326 through MEOS) and add the streaming-equals-batch parity result: the continuous form matches a batch pass over the same corpus through the same MEOS predicate exactly for Q3 and Q8.
…nstants The Kafka ev/s column carries the EmbeddedBrokerBenchmark figures over an in-process EmbeddedKafkaCluster on the same 216,075-instant corpus and corpus-derived parameters as the Flink column. The per-event spatial cells run below Flink's in-JVM mini-cluster because Kafka Streams routes every record through the broker, while the per-cell shape matches across both engines.
render_streaming_chart.py emits one SVG per streaming form (continuous, windowed, snapshot) comparing the Flink and Kafka events/s on the 216,075-instant real BerlinMOD corpus on a log scale; the timings doc embeds the three charts. The Nebula column is not yet measured and is omitted from the bars.
Title 'BerlinMOD three-platform stream benchmark' with a matched-tone summary and the shared skeleton (what it measures, workload, methodology, invariants, per-engine throughput grid, per-form charts, reading, parity, contributing, reproduce). Per-engine columns (MobilityFlink / MobilityKafka / MobilityNebula) and the per-form charts are ready to fill.
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The streaming sibling of the cross-platform BerlinMOD benchmark, under BerlinMOD/benchmarks/streaming/. It defines the streaming query set (a 9-query subset of the BerlinMOD intents in continuous, windowed, and snapshot forms across Flink, Kafka, and NebulaStream), records the snapshot-equals-batch bridge to the 3-DB benchmark, and specifies the engine-agnostic result schema the three harnesses emit. The cross-platform timing table is seeded with the measured MobilityFlink figures; the Nebula and Kafka columns are not yet measured.