Same-box SPARQL comparison

A self-consistent head-to-head: sparq and Oxigraph (plus QLever when the best-effort Docker server comes up) run on one ephemeral EC2 box, over the same generated featured corpus and the same query files, min-of-N in COUNT mode, with solution counts cross-checked. Absolute µs are this box only (a 4-vCPU Graviton, not the gh-runner CI band) — read them for cross-engine ordering, not as a cross-machine reference. n/a where an engine produced no timing (e.g. QLever skipped).

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Benchmark families

Every query type sparq benchmarks, grouped into capability families. The table shows each metric's latest value (smaller is better — customSmallerIsBetter) with a Δ-vs-best pill. Expand Trends in a family to load its history charts (loaded on demand to keep the page fast). Hover any label or the raw stem_us beneath it for the dataset + query it measures.

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Scaling

How a metric scales with dataset size / depth, for suites run at multiple sizes (e.g. Deep Taxonomy depths, WatDiv scale factors). The size/depth axis is read from the metric name.