Programming Language and compiler
Benchmarks

Swift VS Lua benchmarks

Current benchmark data was generated on Mon Apr 14 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
swift 1.swift 2675ms 16ms 53.8MB 2643ms 20ms swift 6.1.0
lua 1.lua 3698ms 5.1ms 172.9MB 3550ms 133ms luajit 2.1.0-beta3
lua 1.lua timeout 0.0ms 105.0MB 4950ms 37ms lua 5.4.7

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 239ms 3.9ms 11.8MB 227ms 0ms swift 6.1.0
lua 1.lua 305ms 9.6ms 15.8MB 283ms 10ms luajit 2.1.0-beta3
lua 1.lua 819ms 2.0ms 16.9MB 803ms 0ms lua 5.4.7

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 2491ms 11ms 5.5MB 2480ms 0ms swift 6.1.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 213ms 3.7ms 6.3MB 203ms 0ms swift 6.1.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3-m.swift 146ms 0.8ms 20.8MB 433ms 0ms swift 6.1.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3.swift 38ms 0.4ms 18.2MB 37ms 0ms swift 6.1.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 1.5ms 0.2ms 2.1MB 0ms 0ms lua 5.4.7
lua 1.lua 1.7ms 0.3ms 2.4MB 0ms 0ms luajit 2.1.0-beta3
swift 1.swift 2.3ms 0.2ms 5.8MB 0ms 0ms swift 6.1.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 1336ms 17ms 70.7MB 4880ms 30ms swift 6.1.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 248ms 2.1ms 60.0MB 663ms 23ms swift 6.1.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 7.swift 344ms 2.0ms 10.0MB 330ms 0ms swift 6.1.0
lua 4.lua 711ms 0.5ms 2.4MB 700ms 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
swift 7.swift 39ms 0.2ms 10.0MB 30ms 0ms swift 6.1.0
lua 4.lua 75ms 2.0ms 2.3MB 70ms 0ms luajit 2.1.0-beta3
lua 4.lua 1133ms 38ms 2.3MB 1123ms 0ms lua 5.4.7

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift timeout 0.0ms 7.1MB 4937ms 50ms swift 6.1.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 1928ms 4.2ms 7.0MB 1913ms 0ms swift 6.1.0