This directory holds the memory kernels behind sz_copy, sz_move, sz_fill, and sz_lookup. Each operation has a serial baseline plus per-ISA SIMD backends — haswell, skylake, and icelake on x86. The dispatcher picks the fastest one available on the running CPU.

Numbers are throughput in GB/s, measured with bench/memory.cpp over the leipzig1M_en.txt corpus, reporting the median of repeated runs. Memory operations are bandwidth-bound and measured solo, so they are not tokenized and appear in a single table. Each row is the library compiled with that single backend forced on one fixed chip, and each column is one operation, so coverage and cross-chip comparison read down a single column. The Standard row is the platform's best stock equivalent per column — std::memcpy, std::memmove, std::memset, and std::transform. A ↑ cell means there is no dedicated kernel at that ISA level, so the dispatcher reuses the kernel from the tier above it; an empty cell is genuinely-missing data.

Measured June 26th, 2026.