Programming Language and compiler
Benchmarks

Zig VS C# benchmarks

Current benchmark data was generated on Tue Dec 31 2024, 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 886ms 4.1ms 166.1MB 870ms 127ms dotnet/aot 9.0.101
csharp 1.cs 889ms 12ms 194.2MB 897ms 133ms dotnet 9.0.101
zig 1.zig 1616ms 20ms 49.1MB 1590ms 10ms zig 0.13.0
csharp 1.cs 1646ms 54ms 103.5MB 1847ms 210ms mono 6.12.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 117ms 12ms 45.7MB 77ms 30ms dotnet/aot 9.0.101
csharp 1.cs 136ms 3.4ms 44.2MB 107ms 17ms mono 6.12.0
zig 1.zig 142ms 0.5ms 7.1MB 130ms 0ms zig 0.13.0
csharp 1.cs 202ms 3.7ms 66.8MB 143ms 40ms dotnet 9.0.101

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 2162ms 6.9ms 2.5MB 2130ms 13ms zig 0.13.0
csharp 1.cs 3879ms 27ms 24.0MB 3850ms 13ms dotnet/aot 9.0.101
csharp 1.cs 4710ms 24ms 43.7MB 4687ms 17ms dotnet 9.0.101

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 368ms 1.2ms 1.9MB 347ms 10ms zig 0.13.0
csharp 1.cs 641ms 1.7ms 20.6MB 620ms 0ms dotnet/aot 9.0.101
csharp 1.cs 830ms 5.3ms 40.1MB 803ms 13ms dotnet 9.0.101

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 614ms 3.4ms 3.6MB 2297ms 3ms zig 0.13.0
zig 3-i.zig 1689ms 4.7ms 1.1MB 1680ms 0ms zig 0.13.0
zig 2.zig 2336ms 14ms 1.1MB 2327ms 0ms zig 0.13.0
zig 1.zig 2710ms 6.9ms 1.1MB 2700ms 0ms zig 0.13.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 60ms 2.7ms 3.5MB 183ms 0ms zig 0.13.0
zig 3-i.zig 142ms 1.7ms 1.1MB 130ms 0ms zig 0.13.0
zig 2.zig 190ms 3.5ms 1.1MB 180ms 0ms zig 0.13.0
zig 1.zig 227ms 2.4ms 1.1MB 220ms 0ms zig 0.13.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 81ms 0.5ms 1.1MB 70ms 0ms zig 0.13.0
csharp 5-m.cs 125ms 14ms 32.7MB 347ms 80ms dotnet/aot 9.0.101
csharp 5-m.cs 183ms 1.2ms 48.7MB 453ms 110ms dotnet 9.0.101
csharp 5-m.cs 239ms 14ms 59.0MB 640ms 97ms mono 6.12.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 10ms 0.6ms 1.1MB 0ms 0ms zig 0.13.0
csharp 5-m.cs 25ms 1.8ms 25.1MB 33ms 17ms dotnet/aot 9.0.101
csharp 5-m.cs 59ms 1.5ms 44.6MB 63ms 30ms dotnet 9.0.101
csharp 5-m.cs 71ms 2.1ms 39.6MB 93ms 33ms mono 6.12.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 0.9ms 0.0ms 1.3MB 0ms 0ms zig 0.13.0
csharp 1.cs 18ms 11ms 15.5MB 0ms 0ms dotnet/aot 9.0.101
csharp 1.cs 30ms 0.2ms 23.4MB 18ms 2ms mono 6.12.0
csharp 1.cs 34ms 1.5ms 32.5MB 18ms 6ms dotnet 9.0.101

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6-m.cs 442ms 15ms 54.7MB 1167ms 20ms dotnet/aot 9.0.101
csharp 6-m.cs 650ms 8.3ms 78.3MB 1763ms 37ms dotnet 9.0.101
zig 1.zig 746ms 5.8ms 21.8MB 720ms 10ms zig 0.13.0
csharp 6-m.cs 964ms 22ms 68.9MB 2790ms 33ms mono 6.12.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6-m.cs 80ms 1.3ms 45.0MB 130ms 23ms dotnet/aot 9.0.101
zig 1.zig 84ms 2.3ms 7.5MB 67ms 3ms zig 0.13.0
csharp 6-m.cs 160ms 3.1ms 66.3MB 227ms 37ms dotnet 9.0.101
csharp 6-m.cs 184ms 4.4ms 55.0MB 357ms 20ms mono 6.12.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 33ms 1.3ms 2.9MB 23ms 0ms zig 0.13.0
csharp 2.cs 89ms 3.0ms 15.9MB 80ms 0ms dotnet/aot 9.0.101
csharp 2.cs 140ms 0.7ms 26.8MB 127ms 0ms mono 6.12.0
csharp 2.cs 243ms 1.1ms 33.6MB 230ms 10ms dotnet 9.0.101
csharp 1.cs 1019ms 10ms 16.9MB 997ms 7ms dotnet/aot 9.0.101
csharp 1.cs 1233ms 42ms 38.8MB 1220ms 10ms dotnet 9.0.101
csharp 1.cs 3162ms 77ms 51.6MB 3123ms 30ms mono 6.12.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 90ms 3.0ms 2.9MB 83ms 0ms zig 0.13.0
csharp 2.cs 255ms 3.9ms 13.6MB 240ms 0ms dotnet/aot 9.0.101
csharp 2.cs 338ms 3.1ms 22.7MB 327ms 0ms mono 6.12.0
csharp 2.cs 390ms 13ms 33.4MB 363ms 13ms dotnet 9.0.101
csharp 1.cs 3020ms 20ms 17.1MB 2993ms 10ms dotnet/aot 9.0.101
csharp 1.cs 3573ms 79ms 39.3MB 3550ms 27ms dotnet 9.0.101
csharp 1.cs timeout 0.0ms 49.7MB 4940ms 50ms mono 6.12.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 14ms 0.1ms 1.4MB 10ms 0ms zig 0.13.0
csharp 2.cs 49ms 0.9ms 15.8MB 30ms 0ms dotnet/aot 9.0.101
csharp 2.cs 88ms 2.2ms 24.7MB 70ms 0ms mono 6.12.0
csharp 2.cs 159ms 4.8ms 33.6MB 133ms 7ms dotnet 9.0.101
csharp 1.cs 1533ms 8.5ms 38.8MB 1517ms 13ms dotnet 9.0.101
csharp 1.cs 1716ms 16ms 28.6MB 1703ms 0ms mono 6.12.0
csharp 1.cs 1729ms 2.9ms 16.9MB 1707ms 3ms dotnet/aot 9.0.101

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 237ms 4.1ms 4.2MB 227ms 0ms zig 0.13.0
csharp 2.cs 1032ms 65ms 46.1MB 1010ms 10ms dotnet 9.0.101
csharp 1.cs 1949ms 25ms 42.7MB 1913ms 13ms dotnet 9.0.101
csharp 3.cs 2330ms 12ms 42.8MB 2303ms 3ms dotnet 9.0.101
csharp 3.cs 2397ms 13ms 22.3MB 2383ms 0ms dotnet/aot 9.0.101
csharp 1.cs 3363ms 16ms 22.1MB 3350ms 0ms dotnet/aot 9.0.101
csharp 1.cs timeout 0.0ms 26.4MB 4987ms 3ms mono 6.12.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.1ms 1.3MB 0ms 0ms zig 0.13.0
csharp 3.cs 112ms 2.9ms 19.4MB 100ms 0ms dotnet/aot 9.0.101
csharp 1.cs 130ms 1.9ms 39.8MB 110ms 7ms dotnet 9.0.101
csharp 2.cs 141ms 27ms 41.3MB 123ms 0ms dotnet 9.0.101
csharp 1.cs 150ms 3.4ms 17.0MB 133ms 0ms dotnet/aot 9.0.101
csharp 3.cs 156ms 4.5ms 39.9MB 140ms 3ms dotnet 9.0.101
csharp 1.cs 538ms 3.9ms 25.3MB 520ms 7ms mono 6.12.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 521ms 13ms 123.3MB 463ms 80ms dotnet/aot 9.0.101
csharp 1.cs 549ms 12ms 154.4MB 487ms 123ms dotnet/aot 9.0.101
csharp 2.cs 657ms 22ms 142.9MB 603ms 97ms dotnet 9.0.101
csharp 1.cs 663ms 5.2ms 169.5MB 603ms 123ms dotnet 9.0.101
zig 1.zig 790ms 14ms 41.1MB 763ms 10ms zig 0.13.0
csharp 1.cs 1246ms 80ms 142.6MB 1450ms 163ms mono 6.12.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 129ms 11ms 62.5MB 93ms 33ms dotnet/aot 9.0.101
csharp 1.cs 147ms 8.4ms 80.9MB 113ms 43ms dotnet/aot 9.0.101
zig 1.zig 160ms 1.9ms 11.1MB 147ms 0ms zig 0.13.0
csharp 1.cs 247ms 3.2ms 71.3MB 207ms 43ms mono 6.12.0
csharp 1.cs 261ms 6.2ms 98.0MB 220ms 53ms dotnet 9.0.101
csharp 2.cs 268ms 26ms 80.7MB 217ms 40ms dotnet 9.0.101

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 258ms 1.8ms 1.1MB 247ms 0ms zig 0.13.0
zig 1.zig 300ms 6.3ms 1.3MB 290ms 0ms zig 0.13.0
csharp 9.cs 342ms 4.6ms 34.1MB 320ms 7ms dotnet 9.0.101
csharp 8.cs 350ms 0.8ms 15.8MB 340ms 0ms dotnet/aot 9.0.101
csharp 8.cs 410ms 17ms 33.9MB 390ms 0ms dotnet 9.0.101
csharp 8.cs 1189ms 27ms 24.1MB 1163ms 7ms mono 6.12.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2.zig 27ms 0.1ms 1.1MB 20ms 0ms zig 0.13.0
zig 1.zig 33ms 0.3ms 1.3MB 23ms 0ms zig 0.13.0
csharp 8.cs 44ms 0.9ms 15.7MB 30ms 0ms dotnet/aot 9.0.101
csharp 9.cs 96ms 16ms 34.0MB 70ms 7ms dotnet 9.0.101
csharp 8.cs 108ms 14ms 33.9MB 77ms 3ms dotnet 9.0.101
csharp 8.cs 155ms 4.8ms 22.5MB 143ms 0ms mono 6.12.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 240ms 5.5ms 40.3MB 223ms 0ms zig 0.13.0
csharp 1.cs 288ms 4.4ms 55.1MB 270ms 3ms dotnet/aot 9.0.101
csharp 1.cs 312ms 3.5ms 74.6MB 283ms 17ms dotnet 9.0.101
zig 2.zig 316ms 1.6ms 6.1MB 303ms 0ms zig 0.13.0
csharp 2.cs 376ms 1.5ms 39.9MB 357ms 7ms dotnet 9.0.101
csharp 2.cs 401ms 4.0ms 19.8MB 383ms 0ms dotnet/aot 9.0.101
csharp 1.cs 509ms 6.2ms 84.0MB 483ms 10ms mono 6.12.0
csharp 2.cs 1771ms 12ms 31.3MB 1753ms 7ms mono 6.12.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 49ms 1.2ms 11.0MB 33ms 0ms zig 0.13.0
csharp 1.cs 63ms 1.1ms 25.9MB 43ms 3ms dotnet/aot 9.0.101
zig 2.zig 78ms 0.3ms 2.4MB 70ms 0ms zig 0.13.0
csharp 1.cs 97ms 0.8ms 45.3MB 70ms 13ms dotnet 9.0.101
csharp 2.cs 103ms 1.4ms 17.9MB 87ms 3ms dotnet/aot 9.0.101
csharp 2.cs 120ms 3.1ms 35.9MB 107ms 3ms dotnet 9.0.101
csharp 1.cs 139ms 3.8ms 39.9MB 117ms 7ms mono 6.12.0
csharp 2.cs 462ms 9.6ms 27.1MB 450ms 0ms mono 6.12.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 2339ms 5.6ms 2.2MB 2307ms 17ms zig 0.13.0
csharp 1.cs 3047ms 34ms 19.8MB 2953ms 97ms dotnet/aot 9.0.101
csharp 1.cs 3390ms 117ms 44.0MB 3390ms 110ms dotnet 9.0.101

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 536ms 2.8ms 1.8MB 520ms 0ms zig 0.13.0
csharp 1.cs 716ms 8.6ms 19.6MB 667ms 33ms dotnet/aot 9.0.101
csharp 1.cs 940ms 21ms 43.5MB 1023ms 43ms dotnet 9.0.101

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 450ms 8.0ms 3.8MB 1500ms 7ms zig 0.13.0
zig 2.zig 872ms 1.5ms 1.5MB 860ms 0ms zig 0.13.0
csharp 3-m.cs 1779ms 35ms 18.5MB 6860ms 3ms dotnet/aot 9.0.101
csharp 3-m.cs 2081ms 305ms 38.1MB 6603ms 27ms dotnet 9.0.101
zig 1.zig 3472ms 17ms 1.5MB 3463ms 0ms zig 0.13.0
csharp 3-m.cs 4402ms 103ms 30.5MB 17000ms 13ms mono 6.12.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 119ms 0.9ms 3.7MB 250ms 3ms zig 0.13.0
zig 2.zig 218ms 2.6ms 1.4MB 203ms 0ms zig 0.13.0
csharp 3-m.cs 450ms 2.7ms 18.4MB 1703ms 7ms dotnet/aot 9.0.101
csharp 3-m.cs 536ms 66ms 37.8MB 1747ms 3ms dotnet 9.0.101
zig 1.zig 875ms 2.0ms 1.4MB 867ms 0ms zig 0.13.0
csharp 3-m.cs 1220ms 125ms 28.6MB 4300ms 13ms mono 6.12.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 37ms 1.7ms 3.7MB 30ms 0ms zig 0.13.0
zig 2.zig 56ms 0.1ms 1.4MB 50ms 0ms zig 0.13.0
csharp 3-m.cs 122ms 0.6ms 18.1MB 423ms 7ms dotnet/aot 9.0.101
csharp 3-m.cs 167ms 2.0ms 36.5MB 470ms 7ms dotnet 9.0.101
zig 1.zig 224ms 2.6ms 1.4MB 213ms 0ms zig 0.13.0
csharp 3-m.cs 342ms 16ms 28.5MB 1147ms 10ms mono 6.12.0