Programming Language and compiler
Benchmarks

C# VS Wasm benchmarks

Current benchmark data was generated on Wed Jan 22 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 912ms 14ms 187.1MB 903ms 140ms dotnet/aot 9.0.102
csharp 1.cs 964ms 9.3ms 206.6MB 947ms 153ms dotnet 9.0.102
wasm 3.rs 1735ms 38ms 51.3MB 1700ms 17ms wasmtime 29.0.1
csharp 1.cs 1752ms 85ms 103.6MB 1933ms 253ms mono 6.12.0
wasm 4.rs 1755ms 3.5ms 35.3MB 1730ms 13ms wasmtime 29.0.1
wasm 5.rs 1769ms 18ms 37.2MB 1753ms 3ms wasmtime 29.0.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 117ms 2.5ms 41.9MB 80ms 30ms dotnet/aot 9.0.102
csharp 1.cs 151ms 2.8ms 46.3MB 127ms 10ms mono 6.12.0
wasm 5.rs 170ms 0.9ms 21.3MB 160ms 0ms wasmtime 29.0.1
wasm 4.rs 171ms 2.2ms 23.3MB 160ms 0ms wasmtime 29.0.1
wasm 3.rs 172ms 6.1ms 23.3MB 160ms 3ms wasmtime 29.0.1
csharp 1.cs 204ms 17ms 64.6MB 153ms 37ms dotnet 9.0.102

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 1128ms 15ms 21.5MB 1110ms 0ms wasmtime 29.0.1
csharp 1-m.cs 2167ms 61ms 71.6MB 7430ms 90ms dotnet/aot 9.0.102
csharp 1-m.cs 2627ms 90ms 82.1MB 8133ms 107ms dotnet 9.0.102

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 3.rs 83ms 2.3ms 20.0MB 70ms 0ms wasmtime 29.0.1
csharp 1-m.cs 174ms 6.3ms 28.9MB 467ms 20ms dotnet/aot 9.0.102
csharp 1-m.cs 285ms 11ms 50.6MB 790ms 33ms dotnet 9.0.102

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 416ms 1.5ms 20.8MB 403ms 3ms wasmtime 29.0.1
csharp 1.cs 4084ms 2.2ms 24.3MB 4053ms 17ms dotnet/aot 9.0.102
csharp 1.cs 4938ms 22ms 43.7MB 4910ms 17ms dotnet 9.0.102

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 113ms 1.5ms 20.1MB 100ms 0ms wasmtime 29.0.1
csharp 1.cs 685ms 5.5ms 20.5MB 660ms 3ms dotnet/aot 9.0.102
csharp 1.cs 858ms 3.8ms 40.0MB 827ms 17ms dotnet 9.0.102

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 138ms 5.4ms 33.9MB 347ms 123ms dotnet/aot 9.0.102
csharp 5-m.cs 188ms 2.6ms 50.8MB 470ms 113ms dotnet 9.0.102
wasm 1.rs 233ms 1.1ms 19.7MB 220ms 0ms wasmtime 29.0.1
csharp 5-m.cs 259ms 14ms 58.4MB 653ms 157ms mono 6.12.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 26ms 1.6ms 23.7MB 33ms 17ms dotnet/aot 9.0.102
wasm 1.rs 31ms 1.1ms 19.5MB 17ms 3ms wasmtime 29.0.1
csharp 5-m.cs 61ms 1.5ms 47.1MB 83ms 20ms dotnet 9.0.102
csharp 5-m.cs 70ms 1.0ms 39.6MB 103ms 17ms mono 6.12.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 7.3ms 0.2ms 20.6MB 0ms 0ms wasmtime 29.0.1
csharp 1.cs 18ms 10ms 12.5MB 0ms 0ms dotnet/aot 9.0.102
csharp 1.cs 31ms 0.2ms 23.3MB 22ms 0ms mono 6.12.0
csharp 1.cs 35ms 0.3ms 30.3MB 16ms 4ms dotnet 9.0.102

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2-http2.cs 512ms 4.2ms 120.8MB 737ms 140ms dotnet 9.0.102
csharp 2-m.cs 646ms 11ms 152.9MB 707ms 517ms dotnet 9.0.102
csharp 2-http3.cs 695ms 16ms 157.2MB 1120ms 290ms dotnet 9.0.102
csharp 1-m.cs 790ms 13ms 171.7MB 1097ms 717ms dotnet 9.0.102

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 390ms 4.2ms 101.0MB 387ms 197ms dotnet 9.0.102
csharp 2-http2.cs 433ms 2.9ms 97.8MB 477ms 100ms dotnet 9.0.102
csharp 1-m.cs 441ms 9.6ms 110.2MB 540ms 250ms dotnet 9.0.102
csharp 2-http3.cs 498ms 11ms 107.6MB 613ms 107ms dotnet 9.0.102

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 310ms 6.9ms 79.1MB 273ms 23ms dotnet 9.0.102
csharp 1.cs 709ms 4.2ms 153.6MB 727ms 93ms dotnet 9.0.102

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 1545ms 50ms 223.7MB 1733ms 100ms dotnet 9.0.102
csharp 1.cs 2599ms 54ms 757.2MB 2993ms 383ms dotnet 9.0.102

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6-m.cs 481ms 30ms 54.6MB 1310ms 20ms dotnet/aot 9.0.102
csharp 6-m.cs 761ms 32ms 77.6MB 2040ms 37ms dotnet 9.0.102
csharp 6-m.cs 999ms 25ms 64.5MB 2880ms 20ms 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 89ms 4.3ms 43.4MB 157ms 13ms dotnet/aot 9.0.102
csharp 6-m.cs 171ms 13ms 64.0MB 250ms 20ms dotnet 9.0.102
csharp 6-m.cs 193ms 0.8ms 49.5MB 377ms 13ms mono 6.12.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 84ms 1.3ms 19.7MB 70ms 0ms wasmtime 29.0.1
csharp 2.cs 99ms 1.7ms 13.9MB 83ms 0ms dotnet/aot 9.0.102
csharp 2.cs 146ms 1.3ms 22.7MB 133ms 3ms mono 6.12.0
csharp 2.cs 257ms 11ms 33.4MB 233ms 13ms dotnet 9.0.102
csharp 1.cs 1004ms 6.7ms 17.2MB 980ms 7ms dotnet/aot 9.0.102
csharp 1.cs 1439ms 251ms 38.9MB 1417ms 13ms dotnet 9.0.102
csharp 1.cs 3311ms 41ms 47.6MB 3270ms 30ms mono 6.12.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 233ms 2.5ms 19.6MB 223ms 0ms wasmtime 29.0.1
csharp 2.cs 273ms 2.4ms 13.7MB 257ms 0ms dotnet/aot 9.0.102
csharp 2.cs 402ms 2.3ms 35.6MB 387ms 10ms dotnet 9.0.102
csharp 2.cs 412ms 97ms 24.8MB 397ms 0ms mono 6.12.0
csharp 1.cs 2970ms 21ms 17.1MB 2943ms 13ms dotnet/aot 9.0.102
csharp 1.cs 3581ms 35ms 39.1MB 3560ms 20ms dotnet 9.0.102
csharp 1.cs timeout 0.0ms 47.8MB 4953ms 37ms mono 6.12.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 45ms 1.3ms 20.9MB 33ms 0ms wasmtime 29.0.1
csharp 2.cs 52ms 1.8ms 15.9MB 40ms 0ms dotnet/aot 9.0.102
csharp 2.cs 94ms 1.2ms 24.5MB 80ms 3ms mono 6.12.0
csharp 2.cs 166ms 1.3ms 35.5MB 147ms 7ms dotnet 9.0.102
csharp 1.cs 1609ms 2.2ms 36.8MB 1597ms 7ms dotnet 9.0.102
csharp 1.cs 1817ms 2.0ms 16.9MB 1793ms 7ms dotnet/aot 9.0.102
csharp 1.cs 1821ms 18ms 30.8MB 1803ms 7ms mono 6.12.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 816ms 2.6ms 22.5MB 800ms 0ms wasmtime 29.0.1
csharp 2.cs 1093ms 64ms 46.0MB 1057ms 20ms dotnet 9.0.102
csharp 1.cs 2043ms 10ms 42.9MB 2010ms 20ms dotnet 9.0.102
csharp 3.cs 2350ms 7.8ms 22.1MB 2337ms 3ms dotnet/aot 9.0.102
csharp 3.cs 2712ms 331ms 42.9MB 2683ms 10ms dotnet 9.0.102
csharp 1.cs 3946ms 98ms 22.2MB 3927ms 3ms dotnet/aot 9.0.102
csharp 1.cs timeout 0.0ms 24.4MB 4983ms 3ms mono 6.12.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 8.rs 42ms 0.3ms 19.5MB 30ms 0ms wasmtime 29.0.1
csharp 3.cs 111ms 1.1ms 18.9MB 93ms 3ms dotnet/aot 9.0.102
csharp 2.cs 132ms 0.7ms 42.9MB 113ms 7ms dotnet 9.0.102
csharp 1.cs 139ms 1.8ms 40.0MB 120ms 3ms dotnet 9.0.102
csharp 3.cs 169ms 5.2ms 40.2MB 143ms 7ms dotnet 9.0.102
csharp 1.cs 173ms 2.3ms 19.2MB 160ms 0ms dotnet/aot 9.0.102
csharp 1.cs 566ms 2.5ms 23.4MB 547ms 3ms mono 6.12.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 540ms 17ms 126.2MB 480ms 90ms dotnet/aot 9.0.102
csharp 1.cs 585ms 1.6ms 153.7MB 523ms 133ms dotnet/aot 9.0.102
csharp 2.cs 687ms 11ms 142.9MB 637ms 97ms dotnet 9.0.102
csharp 1.cs 740ms 30ms 169.4MB 690ms 120ms dotnet 9.0.102
wasm 1.rs 886ms 9.9ms 45.3MB 853ms 17ms wasmtime 29.0.1
csharp 1.cs 1320ms 56ms 146.4MB 1527ms 183ms mono 6.12.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 135ms 1.9ms 64.0MB 103ms 33ms dotnet/aot 9.0.102
csharp 1.cs 153ms 2.5ms 80.5MB 120ms 43ms dotnet/aot 9.0.102
wasm 1.rs 192ms 0.4ms 25.3MB 177ms 3ms wasmtime 29.0.1
csharp 1.cs 260ms 7.3ms 69.5MB 233ms 33ms mono 6.12.0
csharp 2.cs 263ms 7.3ms 82.8MB 210ms 47ms dotnet 9.0.102
csharp 1.cs 288ms 18ms 99.0MB 240ms 50ms dotnet 9.0.102

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 9.cs 360ms 2.4ms 34.2MB 340ms 10ms dotnet 9.0.102
csharp 8.cs 370ms 0.4ms 15.7MB 357ms 0ms dotnet/aot 9.0.102
wasm 1.rs 407ms 1.8ms 19.2MB 390ms 0ms wasmtime 29.0.1
csharp 8.cs 418ms 0.9ms 33.8MB 393ms 10ms dotnet 9.0.102
wasm 2.rs 579ms 1.4ms 19.2MB 563ms 0ms wasmtime 29.0.1
csharp 8.cs 1246ms 5.3ms 22.4MB 1230ms 0ms mono 6.12.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 8.cs 46ms 1.7ms 16.0MB 30ms 0ms dotnet/aot 9.0.102
wasm 1.rs 49ms 0.4ms 21.2MB 37ms 0ms wasmtime 29.0.1
wasm 2.rs 66ms 1.1ms 19.2MB 57ms 0ms wasmtime 29.0.1
csharp 9.cs 92ms 1.1ms 34.0MB 77ms 0ms dotnet 9.0.102
csharp 8.cs 105ms 9.8ms 34.0MB 73ms 10ms dotnet 9.0.102
csharp 8.cs 162ms 2.1ms 26.3MB 147ms 3ms mono 6.12.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 308ms 4.3ms 54.8MB 287ms 10ms dotnet/aot 9.0.102
csharp 1.cs 349ms 1.7ms 70.4MB 323ms 10ms dotnet 9.0.102
wasm 2.rs 370ms 9.0ms 24.2MB 357ms 0ms wasmtime 29.0.1
csharp 2.cs 396ms 1.6ms 19.9MB 380ms 3ms dotnet/aot 9.0.102
csharp 2.cs 400ms 11ms 38.9MB 370ms 10ms dotnet 9.0.102
wasm 1.rs 471ms 3.2ms 58.5MB 453ms 3ms wasmtime 29.0.1
csharp 1.cs 535ms 6.8ms 86.0MB 507ms 10ms mono 6.12.0
csharp 2.cs 1874ms 13ms 31.5MB 1860ms 0ms mono 6.12.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 65ms 0.2ms 27.5MB 50ms 3ms dotnet/aot 9.0.102
wasm 2.rs 93ms 1.0ms 22.5MB 80ms 3ms wasmtime 29.0.1
wasm 1.rs 97ms 3.2ms 29.2MB 87ms 0ms wasmtime 29.0.1
csharp 1.cs 98ms 1.1ms 45.5MB 73ms 10ms dotnet 9.0.102
csharp 2.cs 102ms 0.7ms 17.8MB 87ms 3ms dotnet/aot 9.0.102
csharp 2.cs 130ms 1.9ms 36.2MB 107ms 7ms dotnet 9.0.102
csharp 1.cs 144ms 1.5ms 40.3MB 127ms 7ms mono 6.12.0
csharp 2.cs 484ms 8.1ms 24.9MB 463ms 3ms mono 6.12.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 2195ms 7.4ms 20.2MB 2177ms 7ms wasmtime 29.0.1
csharp 1.cs 3242ms 11ms 19.9MB 3120ms 117ms dotnet/aot 9.0.102
csharp 1.cs 3579ms 48ms 42.2MB 3567ms 147ms dotnet 9.0.102

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 520ms 2.1ms 21.4MB 503ms 0ms wasmtime 29.0.1
csharp 1.cs 761ms 6.6ms 19.2MB 713ms 33ms dotnet/aot 9.0.102
csharp 1.cs 996ms 11ms 43.7MB 1077ms 40ms dotnet 9.0.102

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 1747ms 9.0ms 429.4MB 1660ms 133ms dotnet/aot 9.0.102
csharp 5.cs 2081ms 40ms 454.7MB 2120ms 190ms dotnet 9.0.102
csharp 6.cs 2702ms 39ms 451.9MB 2663ms 167ms dotnet 9.0.102
csharp 5.cs 4204ms 37ms 425.2MB 4097ms 153ms dotnet/aot 9.0.102

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 191ms 1.2ms 54.4MB 167ms 17ms dotnet/aot 9.0.102
csharp 5.cs 293ms 6.7ms 80.4MB 240ms 43ms dotnet 9.0.102
csharp 6.cs 390ms 2.9ms 78.2MB 350ms 37ms dotnet 9.0.102
csharp 5.cs 429ms 2.0ms 58.0MB 403ms 17ms dotnet/aot 9.0.102

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 2807ms 10ms 17.1MB 2760ms 40ms dotnet/aot 9.0.102
csharp 1.cs 2940ms 11ms 39.4MB 2987ms 57ms dotnet 9.0.102
wasm 1.rs 3552ms 38ms 18.9MB 3533ms 3ms wasmtime 29.0.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 718ms 12ms 15.0MB 697ms 3ms dotnet/aot 9.0.102
wasm 1.rs 892ms 4.5ms 19.6MB 873ms 3ms wasmtime 29.0.1
csharp 1.cs 999ms 20ms 40.3MB 1080ms 20ms dotnet 9.0.102

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 1873ms 37ms 18.4MB 7180ms 7ms dotnet/aot 9.0.102
csharp 3-m.cs 1971ms 75ms 38.1MB 7220ms 13ms dotnet 9.0.102
wasm 2.rs 3585ms 7.0ms 19.0MB 3567ms 0ms wasmtime 29.0.1
csharp 3-m.cs 4634ms 249ms 30.7MB 17543ms 10ms mono 6.12.0
wasm 7.rs 4890ms 13ms 21.0MB 4873ms 0ms wasmtime 29.0.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 476ms 1.6ms 18.2MB 1790ms 10ms dotnet/aot 9.0.102
csharp 3-m.cs 542ms 12ms 39.9MB 1870ms 10ms dotnet 9.0.102
wasm 2.rs 905ms 2.5ms 20.9MB 890ms 3ms wasmtime 29.0.1
csharp 3-m.cs 1203ms 18ms 31.0MB 4483ms 7ms mono 6.12.0
wasm 7.rs 1227ms 3.4ms 20.7MB 1210ms 0ms wasmtime 29.0.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 129ms 1.0ms 18.4MB 440ms 7ms dotnet/aot 9.0.102
csharp 3-m.cs 193ms 15ms 36.4MB 497ms 10ms dotnet 9.0.102
wasm 2.rs 243ms 13ms 18.8MB 230ms 0ms wasmtime 29.0.1
wasm 7.rs 315ms 2.2ms 20.7MB 300ms 0ms wasmtime 29.0.1
csharp 3-m.cs 348ms 2.4ms 26.4MB 1160ms 7ms mono 6.12.0