Programming Language and compiler
Benchmarks

Lua VS Wasm benchmarks

Current benchmark data was generated on Sun Jun 01 2025, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] AMD EPYC 7763 64-Core Processor (Model 1)

* -m in a file name stands for multi-threading or multi-processing

* -i in a file name stands for direct intrinsics usage. (Usage of simd intrinsics via libraries is not counted)

* -ffi in a file name stands for non-stdlib FFI usage

* (You may find time < time(user) + time(sys) for some non-parallelized programs, the overhead is from GC or JIT compiler, which are allowed to take advantage of multi-cores as that's more close to real-world scenarios.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 5.rs 1744ms 15ms 33.9MB 1727ms 10ms wasmtime 33.0.0
wasm 3.rs 1791ms 35ms 49.9MB 1760ms 13ms wasmtime 33.0.0
wasm 4.rs 1806ms 5.3ms 33.9MB 1783ms 10ms wasmtime 33.0.0
lua 1.lua 3411ms 55ms 172.9MB 3287ms 110ms luajit 2.1.0-beta3
lua 1.lua timeout 0.0ms 104.9MB 4947ms 37ms lua 5.4.7

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 5.rs 170ms 3.5ms 20.1MB 160ms 0ms wasmtime 33.0.0
wasm 3.rs 174ms 3.4ms 21.9MB 160ms 0ms wasmtime 33.0.0
wasm 4.rs 195ms 7.7ms 19.9MB 180ms 0ms wasmtime 33.0.0
lua 1.lua 287ms 0.8ms 15.8MB 267ms 7ms luajit 2.1.0-beta3
lua 1.lua 818ms 12ms 16.9MB 803ms 0ms lua 5.4.7

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 1.3ms 0.1ms 2.1MB 0ms 0ms lua 5.4.7
lua 1.lua 1.4ms 0.2ms 2.4MB 0ms 0ms luajit 2.1.0-beta3
wasm 1.rs 6.2ms 0.3ms 15.3MB 0ms 0ms wasmtime 33.0.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 869ms 4.9ms 41.9MB 847ms 10ms wasmtime 33.0.0
lua 1.lua timeout 0.0ms 107.4MB 4947ms 37ms lua 5.4.7
lua 1.lua timeout 0.0ms 149.3MB 4927ms 57ms luajit 2.1.0-beta3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 193ms 3.5ms 26.0MB 177ms 0ms wasmtime 33.0.0
lua 1.lua 1103ms 2.6ms 31.0MB 1073ms 17ms luajit 2.1.0-beta3
lua 1.lua 2131ms 17ms 28.6MB 2113ms 7ms lua 5.4.7

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 404ms 2.3ms 18.1MB 390ms 0ms wasmtime 33.0.0
wasm 2.rs 565ms 4.4ms 18.1MB 547ms 0ms wasmtime 33.0.0
lua 4.lua 713ms 2.3ms 2.3MB 707ms 0ms luajit 2.1.0-beta3
lua 4.lua timeout 0.0ms 2.3MB 4990ms 0ms lua 5.4.7

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 48ms 1.3ms 18.1MB 37ms 0ms wasmtime 33.0.0
wasm 2.rs 64ms 1.1ms 18.4MB 50ms 0ms wasmtime 33.0.0
lua 4.lua 75ms 0.3ms 2.3MB 70ms 0ms luajit 2.1.0-beta3
lua 4.lua 1123ms 35ms 2.3MB 1117ms 0ms lua 5.4.7

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 3597ms 4.4ms 17.7MB 3583ms 0ms wasmtime 33.0.0
lua 1.lua 4062ms 9.7ms 2.5MB 4053ms 0ms luajit 2.1.0-beta3
wasm 7.rs 4900ms 7.4ms 17.7MB 4887ms 0ms wasmtime 33.0.0
lua 1.lua timeout 0.0ms 2.5MB 4990ms 0ms lua 5.4.7

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 905ms 1.7ms 18.2MB 890ms 0ms wasmtime 33.0.0
lua 1.lua 1019ms 1.0ms 2.4MB 1010ms 0ms luajit 2.1.0-beta3
wasm 7.rs 1229ms 2.0ms 17.7MB 1217ms 0ms wasmtime 33.0.0
lua 1.lua timeout 0.0ms 2.1MB 4990ms 0ms lua 5.4.7

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 233ms 1.4ms 18.3MB 220ms 0ms wasmtime 33.0.0
lua 1.lua 259ms 2.2ms 2.3MB 250ms 0ms luajit 2.1.0-beta3
wasm 7.rs 315ms 1.6ms 17.7MB 300ms 0ms wasmtime 33.0.0
lua 1.lua timeout 0.0ms 2.0MB 4990ms 0ms lua 5.4.7