Programming Language and compiler
Benchmarks

Lua VS C# benchmarks

Current benchmark data was generated on Fri Aug 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
csharp 1.cs 940ms 5.4ms 167.7MB 933ms 127ms dotnet/aot 9.0.303
csharp 1.cs 952ms 25ms 200.7MB 960ms 150ms dotnet 9.0.303
csharp 1.cs 1675ms 21ms 101.3MB 1873ms 200ms mono 6.12.0
lua 1.lua 3513ms 23ms 173.0MB 3370ms 130ms 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
csharp 1.cs 115ms 10ms 38.9MB 80ms 27ms dotnet/aot 9.0.303
csharp 1.cs 143ms 2.1ms 42.1MB 120ms 13ms mono 6.12.0
csharp 1.cs 198ms 7.5ms 50.1MB 157ms 30ms dotnet 9.0.303
lua 1.lua 290ms 1.7ms 15.9MB 270ms 7ms luajit 2.1.0-beta3
lua 1.lua 817ms 0.3ms 17.0MB 800ms 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 1.4ms 0.1ms 2.4MB 0ms 0ms luajit 2.1.0-beta3
lua 1.lua 1.4ms 0.2ms 2.1MB 0ms 0ms lua 5.4.7
csharp 1.cs 6.8ms 2.0ms 9.5MB 0ms 0ms dotnet/aot 9.0.303
csharp 1.cs 30ms 1.2ms 21.3MB 20ms 0ms mono 6.12.0
csharp 1.cs 35ms 0.9ms 26.1MB 20ms 4ms dotnet 9.0.303

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 517ms 7.3ms 121.6MB 480ms 83ms dotnet/aot 9.0.303
csharp 1.cs 571ms 37ms 146.6MB 527ms 110ms dotnet/aot 9.0.303
csharp 2.cs 683ms 21ms 136.3MB 630ms 97ms dotnet 9.0.303
csharp 1.cs 685ms 0.3ms 167.1MB 637ms 120ms dotnet 9.0.303
csharp 1.cs 1259ms 19ms 140.4MB 1457ms 147ms mono 6.12.0
lua 1.lua timeout 0.0ms 107.4MB 4947ms 40ms lua 5.4.7
lua 1.lua timeout 0.0ms 149.4MB 4923ms 63ms luajit 2.1.0-beta3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 134ms 9.0ms 59.6MB 103ms 37ms dotnet/aot 9.0.303
csharp 1.cs 150ms 4.8ms 73.3MB 120ms 43ms dotnet/aot 9.0.303
csharp 2.cs 259ms 1.2ms 73.3MB 223ms 37ms dotnet 9.0.303
csharp 1.cs 259ms 7.4ms 69.4MB 230ms 37ms mono 6.12.0
csharp 1.cs 272ms 2.0ms 89.9MB 233ms 60ms dotnet 9.0.303
lua 1.lua 1101ms 8.1ms 31.1MB 1073ms 17ms luajit 2.1.0-beta3
lua 1.lua 2192ms 63ms 28.8MB 2170ms 10ms lua 5.4.7

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 9.cs 360ms 0.9ms 27.9MB 340ms 7ms dotnet 9.0.303
csharp 8.cs 370ms 0.9ms 9.9MB 357ms 0ms dotnet/aot 9.0.303
csharp 8.cs 420ms 3.5ms 27.6MB 400ms 7ms dotnet 9.0.303
lua 4.lua 711ms 0.9ms 2.4MB 700ms 0ms luajit 2.1.0-beta3
csharp 8.cs 1246ms 2.5ms 22.8MB 1230ms 0ms mono 6.12.0
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
csharp 8.cs 46ms 1.3ms 9.9MB 33ms 0ms dotnet/aot 9.0.303
lua 4.lua 77ms 1.2ms 2.3MB 70ms 0ms luajit 2.1.0-beta3
csharp 9.cs 93ms 5.0ms 27.8MB 73ms 7ms dotnet 9.0.303
csharp 8.cs 94ms 2.2ms 27.6MB 77ms 3ms dotnet 9.0.303
csharp 8.cs 162ms 3.6ms 22.9MB 150ms 0ms mono 6.12.0
lua 4.lua 1145ms 12ms 2.3MB 1137ms 0ms lua 5.4.7

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 1885ms 25ms 10.5MB 7280ms 0ms dotnet/aot 9.0.303
csharp 3-m.cs 1919ms 3.3ms 30.1MB 7350ms 23ms dotnet 9.0.303
lua 1.lua 4064ms 5.2ms 2.5MB 4053ms 0ms luajit 2.1.0-beta3
csharp 3-m.cs 4704ms 149ms 25.7MB 17910ms 13ms mono 6.12.0
lua 1.lua timeout 0.0ms 2.4MB 4990ms 0ms lua 5.4.7

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 479ms 1.1ms 10.4MB 1817ms 0ms dotnet/aot 9.0.303
csharp 3-m.cs 534ms 3.5ms 30.0MB 1880ms 17ms dotnet 9.0.303
lua 1.lua 1018ms 0.4ms 2.4MB 1010ms 0ms luajit 2.1.0-beta3
csharp 3-m.cs 1244ms 39ms 25.7MB 4693ms 10ms mono 6.12.0
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
csharp 3-m.cs 128ms 0.6ms 10.6MB 453ms 0ms dotnet/aot 9.0.303
csharp 3-m.cs 180ms 5.3ms 28.5MB 503ms 7ms dotnet 9.0.303
lua 1.lua 258ms 0.6ms 2.3MB 250ms 0ms luajit 2.1.0-beta3
csharp 3-m.cs 347ms 1.9ms 25.4MB 1170ms 7ms mono 6.12.0
lua 1.lua timeout 0.0ms 2.1MB 4990ms 0ms lua 5.4.7