Programming Language and compiler
Benchmarks

Lua VS Ruby benchmarks

Current benchmark data was generated on Sun Jul 13 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
lua 1.lua 3544ms 45ms 172.9MB 3407ms 123ms luajit 2.1.0-beta3
ruby 1.rb 4770ms 133ms 110.1MB 4677ms 77ms ruby/yjit 3.4.4
lua 1.lua timeout 0.0ms 104.9MB 4947ms 40ms lua 5.4.7
ruby 1.rb timeout 0.0ms 70.5MB 4950ms 33ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 796.7MB 6620ms 720ms truffleruby 24.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 290ms 5.5ms 15.7MB 267ms 10ms luajit 2.1.0-beta3
ruby 1.rb 498ms 0.9ms 20.3MB 473ms 10ms ruby/yjit 3.4.4
ruby 1-m.rb 503ms 8.2ms 407.1MB 980ms 150ms truffleruby 24.2.1
lua 1.lua 814ms 5.2ms 16.9MB 797ms 0ms lua 5.4.7
ruby 1.rb 947ms 3.2ms 19.5MB 923ms 13ms ruby 3.4.4

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 1.4ms 0.2ms 2.4MB 0ms 0ms luajit 2.1.0-beta3
lua 1.lua 1.4ms 0.2ms 2.1MB 0ms 0ms lua 5.4.7
ruby 1.rb 34ms 0.4ms 141.1MB 12ms 24ms truffleruby 24.2.1
ruby 1.rb 51ms 1.1ms 12.8MB 38ms 0ms ruby 3.4.4
ruby 1.rb 53ms 0.4ms 12.9MB 38ms 4ms ruby/yjit 3.4.4

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1-m.rb 3861ms 33ms 612.1MB 9853ms 350ms truffleruby 24.2.1
lua 1.lua timeout 0.0ms 107.4MB 4950ms 33ms lua 5.4.7
lua 1.lua timeout 0.0ms 149.3MB 4933ms 57ms luajit 2.1.0-beta3
ruby 1.rb timeout 0.0ms 93.5MB 4947ms 40ms ruby 3.4.4
ruby 1.rb timeout 0.0ms 97.4MB 4940ms 50ms ruby/yjit 3.4.4

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 1101ms 2.2ms 31.1MB 1073ms 17ms luajit 2.1.0-beta3
ruby 1-m.rb 2066ms 110ms 488.8MB 5300ms 230ms truffleruby 24.2.1
lua 1.lua 2187ms 8.5ms 28.6MB 2170ms 3ms lua 5.4.7
ruby 1.rb 3236ms 25ms 38.3MB 3197ms 23ms ruby/yjit 3.4.4
ruby 1.rb 4321ms 12ms 37.6MB 4287ms 23ms ruby 3.4.4

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 4.lua 713ms 3.7ms 2.3MB 703ms 0ms luajit 2.1.0-beta3
ruby 2.rb 836ms 14ms 325.0MB 1103ms 117ms truffleruby 24.2.1
lua 4.lua timeout 0.0ms 2.3MB 4990ms 0ms lua 5.4.7
ruby 2.rb timeout 0.0ms 12.8MB 4983ms 3ms ruby 3.4.4
ruby 2.rb timeout 0.0ms 13.5MB 4977ms 10ms ruby/yjit 3.4.4

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 4.lua 74ms 0.9ms 2.3MB 67ms 0ms luajit 2.1.0-beta3
ruby 2-m.rb 309ms 6.6ms 309.6MB 560ms 103ms truffleruby 24.2.1
ruby 2.rb 1028ms 6.1ms 13.5MB 1010ms 3ms ruby/yjit 3.4.4
lua 4.lua 1154ms 10ms 2.3MB 1143ms 0ms lua 5.4.7
ruby 2.rb 2980ms 14ms 12.8MB 2963ms 7ms ruby 3.4.4

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 4063ms 4.0ms 2.5MB 4053ms 0ms luajit 2.1.0-beta3
lua 1.lua timeout 0.0ms 2.5MB 4990ms 0ms lua 5.4.7
ruby 4.rb timeout 0.0ms 12.9MB 4983ms 7ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 0ms ruby/yjit 3.4.4
ruby 4.rb timeout 0.0ms 436.6MB 5167ms 240ms truffleruby 24.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 1029ms 1.6ms 2.4MB 1020ms 0ms luajit 2.1.0-beta3
ruby 4.rb 4848ms 12ms 433.6MB 5140ms 203ms truffleruby 24.2.1
lua 1.lua timeout 0.0ms 2.1MB 4990ms 0ms lua 5.4.7
ruby 4.rb timeout 0.0ms 12.8MB 4980ms 0ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.5MB 4983ms 3ms ruby/yjit 3.4.4

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
lua 1.lua 257ms 0.3ms 2.3MB 250ms 0ms luajit 2.1.0-beta3
ruby 4.rb 1458ms 6.2ms 377.4MB 1793ms 157ms truffleruby 24.2.1
lua 1.lua timeout 0.0ms 2.1MB 4990ms 0ms lua 5.4.7
ruby 4.rb timeout 0.0ms 12.9MB 4980ms 3ms ruby 3.4.4
ruby 4.rb timeout 0.0ms 13.6MB 4980ms 3ms ruby/yjit 3.4.4