Programming Language and compiler
Benchmarks

Dart VS C# 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
dart 1.dart 726ms 7.5ms 80.8MB 697ms 40ms dart/exe 3.7.2
csharp 1.cs 959ms 8.6ms 205.9MB 957ms 147ms dotnet 9.0.203
csharp 1.cs 974ms 8.9ms 178.1MB 980ms 130ms dotnet/aot 9.0.203
csharp 1.cs 1663ms 23ms 105.5MB 1877ms 200ms mono 6.12.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 76ms 1.2ms 42.9MB 50ms 13ms dart/exe 3.7.2
csharp 1.cs 122ms 4.1ms 33.2MB 90ms 30ms dotnet/aot 9.0.203
csharp 1.cs 143ms 1.7ms 42.2MB 120ms 13ms mono 6.12.0
csharp 1.cs 195ms 2.0ms 49.9MB 157ms 40ms dotnet 9.0.203

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1-m.cs 2219ms 89ms 50.5MB 7740ms 67ms dotnet/aot 9.0.203
csharp 1-m.cs 2823ms 229ms 66.1MB 9820ms 107ms dotnet 9.0.203
dart 1.dart 4874ms 23ms 19.4MB 5347ms 77ms dart/exe 3.7.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1-m.cs 158ms 13ms 19.0MB 460ms 13ms dotnet/aot 9.0.203
csharp 1-m.cs 310ms 14ms 37.2MB 877ms 20ms dotnet 9.0.203
dart 1.dart 338ms 3.7ms 10.3MB 340ms 13ms dart/exe 3.7.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 3672ms 17ms 18.0MB 3643ms 27ms dart/exe 3.7.2
csharp 1.cs 4175ms 1.9ms 18.3MB 4147ms 10ms dotnet/aot 9.0.203
csharp 1.cs 4964ms 20ms 37.6MB 4937ms 23ms dotnet 9.0.203

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 602ms 2.4ms 10.4MB 577ms 17ms dart/exe 3.7.2
csharp 1.cs 690ms 1.2ms 14.8MB 670ms 0ms dotnet/aot 9.0.203
csharp 1.cs 864ms 4.6ms 33.9MB 843ms 13ms dotnet 9.0.203

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 2725ms 4.7ms 6.3MB 2717ms 0ms dart/exe 3.7.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 223ms 3.1ms 6.3MB 210ms 0ms dart/exe 3.7.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 131ms 0.3ms 26.3MB 350ms 103ms dotnet/aot 9.0.203
csharp 5-m.cs 189ms 3.4ms 39.1MB 467ms 123ms dotnet 9.0.203
csharp 5-m.cs 241ms 13ms 51.4MB 660ms 123ms mono 6.12.0
dart 1.dart 362ms 1.9ms 8.6MB 350ms 0ms dart/exe 3.7.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 25ms 0.4ms 15.4MB 37ms 10ms dotnet/aot 9.0.203
dart 1.dart 43ms 0.6ms 8.9MB 30ms 0ms dart/exe 3.7.2
csharp 5-m.cs 60ms 1.1ms 36.9MB 80ms 20ms dotnet 9.0.203
csharp 5-m.cs 70ms 2.0ms 30.9MB 103ms 20ms mono 6.12.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 3.4ms 0.2ms 5.1MB 0ms 0ms dart/exe 3.7.2
csharp 1.cs 9.0ms 3.9ms 6.8MB 0ms 0ms dotnet/aot 9.0.203
csharp 1.cs 31ms 0.6ms 21.3MB 20ms 0ms mono 6.12.0
csharp 1.cs 35ms 1.3ms 26.1MB 20ms 2ms dotnet 9.0.203

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2-http2.cs 531ms 29ms 108.5MB 717ms 143ms dotnet 9.0.203
csharp 2-m.cs 602ms 34ms 143.7MB 717ms 493ms dotnet 9.0.203
csharp 2-http3.cs 676ms 19ms 144.2MB 1123ms 257ms dotnet 9.0.203
csharp 1-m.cs 701ms 26ms 161.9MB 1110ms 653ms dotnet 9.0.203
dart 2-m.dart 1430ms 30ms 94.6MB 1343ms 1570ms dart/exe 3.7.2
dart 1.dart 4570ms 155ms 103.6MB 1527ms 1790ms dart/exe 3.7.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2-m.dart 264ms 3.6ms 50.1MB 190ms 297ms dart/exe 3.7.2
csharp 2-m.cs 345ms 7.5ms 87.6MB 383ms 187ms dotnet 9.0.203
csharp 1-m.cs 380ms 5.4ms 97.2MB 513ms 230ms dotnet 9.0.203
csharp 2-http2.cs 458ms 8.1ms 85.7MB 510ms 80ms dotnet 9.0.203
csharp 2-http3.cs 491ms 5.5ms 93.5MB 577ms 113ms dotnet 9.0.203
dart 1.dart 2030ms 503ms 50.5MB 167ms 273ms dart/exe 3.7.2

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 165ms 2.5ms 53.4MB 140ms 20ms dart/exe 3.7.2
csharp 2.cs 305ms 1.6ms 68.8MB 273ms 27ms dotnet 9.0.203
csharp 1.cs 761ms 68ms 143.7MB 783ms 83ms dotnet 9.0.203

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 1499ms 19ms 205.3MB 1737ms 110ms dart/exe 3.7.2
csharp 2.cs 1522ms 33ms 233.6MB 1670ms 93ms dotnet 9.0.203
csharp 1.cs 2653ms 29ms 735.8MB 3230ms 400ms dotnet 9.0.203

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6-m.cs 445ms 3.9ms 46.0MB 1197ms 17ms dotnet/aot 9.0.203
csharp 6-m.cs 822ms 47ms 69.3MB 1833ms 30ms dotnet 9.0.203
csharp 6-m.cs 1007ms 15ms 64.5MB 2930ms 30ms mono 6.12.0
dart 3-m.dart 1093ms 17ms 274.3MB 3243ms 97ms dart/exe 3.7.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6-m.cs 93ms 0.8ms 36.5MB 160ms 17ms dotnet/aot 9.0.203
csharp 6-m.cs 197ms 3.9ms 58.2MB 383ms 17ms mono 6.12.0
csharp 6.cs 197ms 3.4ms 57.7MB 260ms 30ms dotnet 9.0.203
dart 3-m.dart 204ms 3.3ms 195.2MB 510ms 63ms dart/exe 3.7.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 94ms 1.9ms 9.8MB 80ms 0ms dotnet/aot 9.0.203
csharp 2.cs 147ms 3.1ms 22.7MB 133ms 0ms mono 6.12.0
dart 2.dart 163ms 5.4ms 9.4MB 153ms 0ms dart/exe 3.7.2
csharp 2.cs 251ms 4.8ms 29.4MB 233ms 7ms dotnet 9.0.203
dart 1.dart 498ms 2.6ms 9.3MB 490ms 0ms dart/exe 3.7.2
csharp 1.cs 1050ms 13ms 13.3MB 1033ms 3ms dotnet/aot 9.0.203
csharp 1.cs 1311ms 11ms 32.9MB 1293ms 20ms dotnet 9.0.203
csharp 1.cs 3329ms 33ms 43.6MB 3287ms 33ms mono 6.12.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 262ms 0.8ms 9.6MB 250ms 0ms dotnet/aot 9.0.203
csharp 2.cs 362ms 2.4ms 22.7MB 350ms 0ms mono 6.12.0
csharp 2.cs 402ms 3.7ms 29.5MB 387ms 7ms dotnet 9.0.203
dart 2.dart 476ms 1.7ms 9.3MB 463ms 0ms dart/exe 3.7.2
dart 1.dart 1484ms 9.2ms 9.3MB 1467ms 3ms dart/exe 3.7.2
csharp 1.cs 3120ms 25ms 13.6MB 3103ms 10ms dotnet/aot 9.0.203
csharp 1.cs 3611ms 58ms 32.8MB 3597ms 17ms dotnet 9.0.203
csharp 1.cs timeout 0.0ms 45.7MB 4947ms 47ms mono 6.12.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 52ms 1.4ms 9.6MB 40ms 0ms dotnet/aot 9.0.203
dart 2.dart 77ms 1.0ms 9.5MB 67ms 0ms dart/exe 3.7.2
csharp 2.cs 96ms 2.2ms 23.0MB 83ms 0ms mono 6.12.0
dart 1.dart 117ms 0.8ms 8.6MB 103ms 0ms dart/exe 3.7.2
csharp 2.cs 164ms 4.7ms 29.3MB 143ms 7ms dotnet 9.0.203
csharp 1.cs 1615ms 6.7ms 32.6MB 1600ms 13ms dotnet 9.0.203
csharp 1.cs 1819ms 4.9ms 28.8MB 1803ms 0ms mono 6.12.0
csharp 1.cs 1826ms 3.1ms 13.1MB 1810ms 0ms dotnet/aot 9.0.203

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 314ms 2.9ms 63.6MB 290ms 20ms dart/exe 3.7.2
csharp 2.cs 540ms 13ms 119.9MB 497ms 83ms dotnet/aot 9.0.203
csharp 1.cs 601ms 11ms 145.0MB 553ms 110ms dotnet/aot 9.0.203
csharp 2.cs 682ms 13ms 136.3MB 630ms 93ms dotnet 9.0.203
csharp 1.cs 702ms 20ms 168.5MB 643ms 127ms dotnet 9.0.203
csharp 1.cs 1284ms 31ms 144.0MB 1490ms 167ms mono 6.12.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 83ms 1.2ms 43.8MB 60ms 13ms dart/exe 3.7.2
csharp 2.cs 132ms 3.0ms 57.9MB 107ms 30ms dotnet/aot 9.0.203
csharp 1.cs 155ms 2.9ms 73.8MB 123ms 50ms dotnet/aot 9.0.203
csharp 2.cs 264ms 3.0ms 73.1MB 230ms 37ms dotnet 9.0.203
csharp 1.cs 267ms 2.8ms 69.3MB 240ms 33ms mono 6.12.0
csharp 1.cs 277ms 3.0ms 89.8MB 247ms 53ms dotnet 9.0.203

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 9.cs 360ms 2.9ms 27.6MB 340ms 7ms dotnet 9.0.203
csharp 8.cs 371ms 1.0ms 9.9MB 360ms 0ms dotnet/aot 9.0.203
dart 3.dart 406ms 0.2ms 6.5MB 397ms 0ms dart/exe 3.7.2
csharp 8.cs 419ms 1.8ms 27.4MB 400ms 3ms dotnet 9.0.203
csharp 8.cs 1254ms 9.8ms 22.8MB 1240ms 0ms mono 6.12.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 3.dart 46ms 1.1ms 6.3MB 40ms 0ms dart/exe 3.7.2
csharp 8.cs 46ms 1.4ms 9.9MB 30ms 0ms dotnet/aot 9.0.203
csharp 9.cs 93ms 4.5ms 27.6MB 70ms 7ms dotnet 9.0.203
csharp 8.cs 99ms 8.1ms 27.6MB 80ms 3ms dotnet 9.0.203
csharp 8.cs 162ms 0.8ms 20.9MB 150ms 0ms mono 6.12.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 1341ms 4.8ms 14.6MB 1313ms 30ms dart/exe 3.7.2
csharp 1.cs 3248ms 11ms 14.0MB 3150ms 93ms dotnet/aot 9.0.203
csharp 1.cs 3556ms 47ms 38.4MB 3577ms 123ms dotnet 9.0.203

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 331ms 2.9ms 14.8MB 307ms 17ms dart/exe 3.7.2
csharp 1.cs 761ms 1.1ms 13.5MB 720ms 27ms dotnet/aot 9.0.203
csharp 1.cs 985ms 2.4ms 37.8MB 1070ms 43ms dotnet 9.0.203

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 1749ms 12ms 417.4MB 1647ms 160ms dotnet/aot 9.0.203
csharp 5.cs 2068ms 11ms 444.0MB 2113ms 183ms dotnet 9.0.203
csharp 6.cs 2696ms 1.7ms 441.1MB 2650ms 167ms dotnet 9.0.203
csharp 5.cs 4282ms 5.1ms 416.9MB 4190ms 147ms dotnet/aot 9.0.203
dart 1.dart timeout 0.0ms 188.0MB 4990ms 43ms dart/exe 3.7.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 190ms 1.2ms 46.4MB 163ms 20ms dotnet/aot 9.0.203
csharp 5.cs 283ms 0.3ms 72.7MB 253ms 30ms dotnet 9.0.203
csharp 6.cs 387ms 3.0ms 69.6MB 357ms 30ms dotnet 9.0.203
csharp 5.cs 441ms 3.2ms 48.6MB 417ms 20ms dotnet/aot 9.0.203
dart 1.dart 561ms 17ms 43.3MB 543ms 10ms dart/exe 3.7.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 1860ms 1.8ms 10.4MB 7253ms 10ms dotnet/aot 9.0.203
csharp 3-m.cs 1926ms 4.5ms 29.9MB 7353ms 23ms dotnet 9.0.203
dart 1.dart 3773ms 11ms 6.4MB 3760ms 0ms dart/exe 3.7.2
dart 2.dart 4339ms 3.8ms 6.5MB 4330ms 0ms dart/exe 3.7.2
csharp 3-m.cs 4693ms 178ms 25.5MB 17890ms 10ms mono 6.12.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 494ms 33ms 10.5MB 1787ms 3ms dotnet/aot 9.0.203
csharp 3-m.cs 657ms 23ms 30.0MB 1690ms 10ms dotnet 9.0.203
dart 1.dart 945ms 0.3ms 6.3MB 933ms 0ms dart/exe 3.7.2
dart 2.dart 1092ms 3.1ms 6.3MB 1080ms 0ms dart/exe 3.7.2
csharp 3-m.cs 1197ms 19ms 27.2MB 4503ms 13ms mono 6.12.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 128ms 1.5ms 10.4MB 450ms 0ms dotnet/aot 9.0.203
dart 1.dart 241ms 2.2ms 6.3MB 230ms 0ms dart/exe 3.7.2
csharp 3-m.cs 248ms 8.5ms 28.6MB 463ms 10ms dotnet 9.0.203
dart 2.dart 279ms 3.2ms 6.3MB 270ms 0ms dart/exe 3.7.2
csharp 3-m.cs 352ms 13ms 24.8MB 1190ms 10ms mono 6.12.0