results from the CI benchmark workflow

zylua: Lua on Zyntax

zylua is a Lua 5.4 runtime. It compiles Lua source to the typed AST of Zyntax. It finds the types of values. When it knows a type, it keeps the value in typed form. Each function starts in the interpreter. zylua compiles a frequently used function to machine code with Cranelift, and then with LLVM.

This page shows the benchmark results from CI. The CI workflow runs each benchmark on zylua, LuaJIT and PUC Lua 5.4. All three must print the same result as PUC Lua. A row that does not agree is not on this page. The source of each benchmark is in crates/zyntax_lua/benchmarks.

Median of 5 · interleaved rounds Two times · benchmark and full process Result checked · against PUC Lua Tiered · interpreter → Cranelift → LLVM

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Shorter bars are faster. The benchmark time is the time that the benchmark program measures with its own clock. The full process time also includes start-up, compilation that occurs before the benchmark starts, and exit. A program that runs one time pays the full process time. The ratio column compares zylua with LuaJIT. The bars in a row use the slowest interpreter in that row as the full length.