Programming Language and compiler
Benchmarks

V VS C# benchmarks

Current benchmark data was generated on Mon Jun 23 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
v 1.v 864ms 25ms 28.9MB 853ms 0ms v/clang+gc 0.4.11
csharp 1.cs 934ms 5.4ms 205.2MB 963ms 147ms dotnet 9.0.301
csharp 1.cs 978ms 18ms 174.5MB 967ms 137ms dotnet/aot 9.0.301
csharp 1.cs 1709ms 47ms 103.2MB 1913ms 217ms mono 6.12.0
v 1.v 2188ms 3.5ms 2086.6MB 1307ms 867ms v/clang 0.4.11

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 71ms 0.8ms 4.6MB 60ms 0ms v/clang+gc 0.4.11
csharp 1.cs 115ms 6.0ms 32.3MB 83ms 27ms dotnet/aot 9.0.301
csharp 1.cs 144ms 2.8ms 44.3MB 120ms 13ms mono 6.12.0
csharp 1.cs 202ms 8.2ms 50.2MB 153ms 37ms dotnet 9.0.301
v 1.v 205ms 4.7ms 198.0MB 110ms 83ms v/clang 0.4.11

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1-m.cs 2165ms 84ms 50.8MB 7643ms 73ms dotnet/aot 9.0.301
csharp 1-m.cs 2925ms 171ms 72.9MB 9227ms 107ms dotnet 9.0.301
v 1.v timeout 0.0ms 17.5MB 8343ms 10803ms v/clang 0.4.11
v 1.v timeout 0.0ms 17.6MB 8653ms 10620ms v/clang+gc 0.4.11

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1-m.cs 167ms 15ms 17.9MB 497ms 13ms dotnet/aot 9.0.301
csharp 1-m.cs 277ms 1.2ms 36.9MB 770ms 20ms dotnet 9.0.301
v 1-m.v 1345ms 36ms 9.8MB 2223ms 2887ms v/clang 0.4.11
v 1-m.v 1657ms 68ms 10.4MB 2843ms 3423ms v/clang+gc 0.4.11

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 4093ms 8.3ms 18.3MB 4067ms 10ms dotnet/aot 9.0.301
csharp 1.cs 4958ms 14ms 37.8MB 4930ms 17ms dotnet 9.0.301
v 1.v timeout 0.0ms 8.1MB 4990ms 0ms v/clang+gc 0.4.11

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 678ms 1.8ms 14.6MB 660ms 0ms dotnet/aot 9.0.301
csharp 1.cs 871ms 10ms 33.9MB 847ms 10ms dotnet 9.0.301
v 1.v timeout 0.0ms 4.5MB 4990ms 0ms v/clang+gc 0.4.11

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2201ms 5.0ms 1.9MB 2193ms 0ms v/clang+gc 0.4.11
v 1.v 2314ms 97ms 1.1MB 2307ms 0ms v/clang 0.4.11

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 188ms 2.1ms 1.9MB 180ms 0ms v/clang+gc 0.4.11
v 1.v 193ms 1.7ms 1.1MB 183ms 0ms v/clang 0.4.11

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 130ms 8.6ms 26.5MB 370ms 90ms dotnet/aot 9.0.301
csharp 5-m.cs 191ms 3.5ms 38.5MB 467ms 127ms dotnet 9.0.301
csharp 5-m.cs 230ms 6.7ms 48.8MB 660ms 90ms mono 6.12.0
v 1.v 505ms 3.4ms 1.3MB 497ms 0ms v/clang 0.4.11
v 1.v 528ms 4.5ms 2.1MB 513ms 0ms v/clang+gc 0.4.11

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 5-m.cs 25ms 0.6ms 15.4MB 37ms 13ms dotnet/aot 9.0.301
v 1.v 53ms 0.7ms 1.3MB 47ms 0ms v/clang 0.4.11
v 1.v 56ms 2.1ms 2.1MB 50ms 0ms v/clang+gc 0.4.11
csharp 5-m.cs 65ms 6.7ms 37.0MB 87ms 13ms dotnet 9.0.301
csharp 5-m.cs 71ms 1.6ms 30.0MB 97ms 27ms mono 6.12.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.0ms 0.0ms 1.4MB 0ms 0ms v/clang 0.4.11
v 1.v 1.3ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.11
csharp 1.cs 7.3ms 1.8ms 8.3MB 0ms 0ms dotnet/aot 9.0.301
csharp 1.cs 32ms 0.6ms 21.3MB 20ms 0ms mono 6.12.0
csharp 1.cs 35ms 1.3ms 26.1MB 20ms 4ms dotnet 9.0.301

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 99ms 0.9ms 9.9MB 87ms 0ms dotnet/aot 9.0.301
csharp 2.cs 150ms 3.3ms 21.1MB 137ms 0ms mono 6.12.0
csharp 2.cs 256ms 3.5ms 29.1MB 240ms 7ms dotnet 9.0.301
v 1.v 262ms 4.6ms 2.1MB 253ms 0ms v/clang+gc 0.4.11
v 1.v 266ms 2.4ms 1.3MB 260ms 0ms v/clang 0.4.11
csharp 1.cs 1041ms 13ms 13.1MB 1027ms 0ms dotnet/aot 9.0.301
csharp 1.cs 1312ms 12ms 32.9MB 1300ms 13ms dotnet 9.0.301
csharp 1.cs 3351ms 22ms 43.7MB 3303ms 37ms mono 6.12.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 2.cs 279ms 1.8ms 9.8MB 267ms 0ms dotnet/aot 9.0.301
csharp 2.cs 362ms 8.0ms 22.8MB 347ms 0ms mono 6.12.0
csharp 2.cs 400ms 2.8ms 29.5MB 387ms 7ms dotnet 9.0.301
v 1.v 771ms 2.0ms 2.1MB 760ms 0ms v/clang+gc 0.4.11
v 1.v 789ms 22ms 1.3MB 780ms 0ms v/clang 0.4.11
csharp 1.cs 3081ms 17ms 13.3MB 3057ms 13ms dotnet/aot 9.0.301
csharp 1.cs 3721ms 174ms 32.6MB 3687ms 20ms dotnet 9.0.301
csharp 1.cs timeout 0.0ms 45.6MB 4943ms 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 54ms 0.2ms 9.8MB 40ms 0ms dotnet/aot 9.0.301
v 1.v 91ms 1.3ms 1.3MB 83ms 0ms v/clang 0.4.11
csharp 2.cs 94ms 2.6ms 22.9MB 80ms 0ms mono 6.12.0
v 1.v 103ms 2.6ms 2.1MB 97ms 0ms v/clang+gc 0.4.11
csharp 2.cs 166ms 3.1ms 29.3MB 143ms 7ms dotnet 9.0.301
csharp 1.cs 1617ms 4.4ms 32.5MB 1613ms 7ms dotnet 9.0.301
csharp 1.cs 1819ms 13ms 28.6MB 1800ms 0ms mono 6.12.0
csharp 1.cs 1833ms 5.6ms 13.0MB 1817ms 0ms dotnet/aot 9.0.301

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.0ms 2.3MB 300ms 0ms v/clang+gc 0.4.11
v 1.v 312ms 2.1ms 1.6MB 300ms 0ms v/clang 0.4.11
csharp 9.cs 363ms 6.1ms 27.9MB 340ms 10ms dotnet 9.0.301
csharp 8.cs 371ms 2.5ms 9.9MB 360ms 0ms dotnet/aot 9.0.301
csharp 8.cs 431ms 6.0ms 27.8MB 413ms 10ms dotnet 9.0.301
csharp 8.cs 1252ms 0.3ms 22.4MB 1240ms 0ms mono 6.12.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.1ms 2.3MB 20ms 0ms v/clang+gc 0.4.11
v 1.v 34ms 1.0ms 1.6MB 27ms 0ms v/clang 0.4.11
csharp 8.cs 44ms 0.0ms 9.9MB 30ms 0ms dotnet/aot 9.0.301
csharp 8.cs 96ms 0.6ms 27.8MB 77ms 10ms dotnet 9.0.301
csharp 9.cs 111ms 17ms 27.9MB 87ms 7ms dotnet 9.0.301
csharp 8.cs 166ms 2.0ms 20.8MB 150ms 0ms mono 6.12.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 320ms 4.3ms 78.8MB 300ms 3ms dotnet/aot 9.0.301
v 1.v 329ms 14ms 40.3MB 313ms 0ms v/clang 0.4.11
v 2.v 330ms 2.6ms 6.1MB 320ms 0ms v/clang 0.4.11
v 2.v 330ms 5.1ms 6.9MB 320ms 0ms v/clang+gc 0.4.11
csharp 1.cs 365ms 4.2ms 96.4MB 340ms 13ms dotnet 9.0.301
csharp 2.cs 401ms 4.4ms 35.8MB 373ms 10ms dotnet 9.0.301
csharp 2.cs 426ms 3.0ms 17.4MB 413ms 0ms dotnet/aot 9.0.301
v 1.v 447ms 7.3ms 60.6MB 430ms 0ms v/clang+gc 0.4.11
csharp 1.cs 556ms 2.5ms 81.9MB 533ms 10ms mono 6.12.0
csharp 2.cs 1875ms 14ms 29.4MB 1860ms 0ms mono 6.12.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 61ms 2.0ms 11.1MB 50ms 0ms v/clang 0.4.11
v 1.v 62ms 2.1ms 11.9MB 50ms 0ms v/clang+gc 0.4.11
csharp 1.cs 64ms 1.3ms 24.7MB 50ms 0ms dotnet/aot 9.0.301
v 2.v 82ms 2.0ms 2.4MB 73ms 0ms v/clang 0.4.11
v 2.v 83ms 1.6ms 3.1MB 70ms 0ms v/clang+gc 0.4.11
csharp 1.cs 106ms 3.2ms 42.6MB 83ms 10ms dotnet 9.0.301
csharp 2.cs 109ms 1.6ms 11.9MB 93ms 0ms dotnet/aot 9.0.301
csharp 2.cs 130ms 1.1ms 30.3MB 110ms 10ms dotnet 9.0.301
csharp 1.cs 146ms 1.6ms 38.5MB 130ms 10ms mono 6.12.0
csharp 2.cs 495ms 15ms 23.5MB 483ms 0ms mono 6.12.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 3216ms 15ms 3.5MB 3197ms 7ms v/clang+gc 0.4.11
csharp 1.cs 3234ms 15ms 13.9MB 3143ms 90ms dotnet/aot 9.0.301
csharp 1.cs 3666ms 54ms 38.4MB 3690ms 117ms dotnet 9.0.301

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 1.cs 753ms 6.8ms 13.4MB 720ms 17ms dotnet/aot 9.0.301
v 2.v 801ms 11ms 3.1MB 790ms 0ms v/clang+gc 0.4.11
csharp 1.cs 1012ms 9.9ms 37.6MB 1103ms 37ms dotnet 9.0.301

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 1755ms 15ms 416.8MB 1657ms 150ms dotnet/aot 9.0.301
csharp 5.cs 2076ms 16ms 442.5MB 2107ms 190ms dotnet 9.0.301
csharp 6.cs 2722ms 41ms 440.1MB 2663ms 180ms dotnet 9.0.301
csharp 5.cs 4214ms 16ms 420.0MB 4110ms 153ms dotnet/aot 9.0.301
v 1.v timeout 0.0ms 83.1MB 4980ms 10ms v/clang+gc 0.4.11

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 6.cs 191ms 2.0ms 47.1MB 167ms 13ms dotnet/aot 9.0.301
csharp 5.cs 294ms 10ms 72.8MB 260ms 30ms dotnet 9.0.301
csharp 6.cs 398ms 3.2ms 70.3MB 357ms 30ms dotnet 9.0.301
csharp 5.cs 434ms 1.9ms 48.7MB 407ms 17ms dotnet/aot 9.0.301
v 1.v 3540ms 93ms 26.0MB 3523ms 3ms v/clang+gc 0.4.11

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 1888ms 32ms 10.5MB 7287ms 7ms dotnet/aot 9.0.301
csharp 3-m.cs 1932ms 11ms 30.1MB 7360ms 17ms dotnet 9.0.301
csharp 3-m.cs 4684ms 65ms 27.0MB 17910ms 10ms mono 6.12.0
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.11
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.11

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 477ms 1.2ms 10.1MB 1823ms 7ms dotnet/aot 9.0.301
csharp 3-m.cs 666ms 1.4ms 29.9MB 1670ms 10ms dotnet 9.0.301
csharp 3-m.cs 1209ms 1.7ms 25.9MB 4553ms 7ms mono 6.12.0
v 1.v 1286ms 8.5ms 1.5MB 1277ms 0ms v/clang 0.4.11
v 1.v 1326ms 6.9ms 2.5MB 1313ms 0ms v/clang+gc 0.4.11

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
csharp 3-m.cs 129ms 0.6ms 10.8MB 450ms 3ms dotnet/aot 9.0.301
csharp 3-m.cs 251ms 7.7ms 29.0MB 460ms 10ms dotnet 9.0.301
v 1.v 326ms 0.7ms 1.9MB 320ms 0ms v/clang 0.4.11
v 1.v 334ms 0.7ms 2.5MB 320ms 0ms v/clang+gc 0.4.11
csharp 3-m.cs 354ms 11ms 25.4MB 1197ms 3ms mono 6.12.0