This directory holds the set-intersection kernel behind sz_sequence_intersect. The operation has a serial baseline plus a dedicated AVX-512 VBMI icelake backend on x86. The dispatcher picks the fastest one available on the running CPU.

Numbers are throughput in comparisons/s, rendered as Mcmp/s, measured with bench/sequence.cpp over the leipzig1M_en.txt corpus, reporting the median of repeated runs. Each row is the library compiled with that single backend forced on one fixed chip, and the single column is the operation, so coverage and cross-chip comparison read down the column. The Standard row is the platform's best stock equivalent, std::unordered_map. Token length affects per-element cost, so results are split into a Short Words table (tokens averaging 5 bytes) and a Long Lines table (tokens averaging 130 bytes). An empty cell is genuinely-missing data; … rows are placeholders awaiting an Arm run.

Measured June 26th, 2026.

Measured June 26th, 2026.