Programming Language and compiler
Benchmarks

Nim VS V benchmarks

Current benchmark data was generated on Mon Mar 31 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 788ms 7.0ms 22.1MB 777ms 0ms v/clang+gc 0.4.10
nim 2.nim 951ms 22ms 34.6MB 933ms 0ms nim 2.2.2
nim 2.nim 1044ms 46ms 34.9MB 1030ms 0ms nim/clang 2.2.2
v 1.v 2188ms 8.1ms 2086.6MB 1257ms 917ms v/clang 0.4.10

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 71ms 1.0ms 4.6MB 60ms 0ms v/clang+gc 0.4.10
nim 2.nim 91ms 1.0ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 92ms 1.1ms 5.8MB 80ms 0ms nim/clang 2.2.2
v 1.v 212ms 6.8ms 198.0MB 113ms 87ms v/clang 0.4.10

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim timeout 0.0ms 553.5MB 2527ms 2017ms nim 2.2.2
nim 1.nim timeout 0.0ms 555.8MB 2507ms 2037ms nim/clang 2.2.2
v 1.v timeout 0.0ms 18.3MB 8807ms 10530ms v/clang 0.4.10
v 1.v timeout 0.0ms 18.9MB 8483ms 10720ms v/clang+gc 0.4.10

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1-m.v 1417ms 78ms 9.6MB 2367ms 2990ms v/clang 0.4.10
v 1-m.v 1453ms 55ms 10.3MB 2443ms 2997ms v/clang+gc 0.4.10
nim 1.nim 4347ms 12ms 519.8MB 2150ms 1773ms nim/clang 2.2.2
nim 1.nim 4379ms 10ms 519.4MB 2190ms 1760ms nim 2.2.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 189ms 2.4ms 1.5MB 177ms 0ms nim 2.2.2
nim 2.nim 237ms 2.8ms 1.8MB 227ms 0ms nim/clang 2.2.2
v 1.v 497ms 1.0ms 1.3MB 487ms 0ms v/clang 0.4.10
v 1.v 524ms 3.1ms 2.1MB 513ms 0ms v/clang+gc 0.4.10
nim 1.nim 553ms 0.6ms 1.8MB 447ms 90ms nim/clang 2.2.2
nim 1.nim 579ms 2.1ms 1.5MB 477ms 87ms nim 2.2.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 21ms 0.0ms 1.5MB 10ms 0ms nim 2.2.2
nim 2.nim 26ms 0.2ms 1.8MB 20ms 0ms nim/clang 2.2.2
v 1.v 53ms 1.6ms 1.3MB 43ms 0ms v/clang 0.4.10
v 1.v 55ms 0.7ms 2.1MB 50ms 0ms v/clang+gc 0.4.10
nim 1.nim 59ms 1.2ms 1.8MB 40ms 10ms nim/clang 2.2.2
nim 1.nim 61ms 0.5ms 1.5MB 40ms 7ms nim 2.2.2

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 0.4.10
nim 1.nim 1.1ms 0.0ms 1.5MB 0ms 0ms nim 2.2.2
nim 1.nim 1.2ms 0.0ms 1.9MB 0ms 0ms nim/clang 2.2.2
v 1.v 1.5ms 0.2ms 1.9MB 0ms 0ms v/clang+gc 0.4.10

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 111ms 1.6ms 1.6MB 100ms 0ms nim/clang 2.2.2
nim 2.nim 113ms 2.6ms 1.4MB 103ms 0ms nim 2.2.2
v 1.v 244ms 1.8ms 1.3MB 233ms 0ms v/clang 0.4.10
v 1.v 262ms 4.4ms 2.1MB 253ms 0ms v/clang+gc 0.4.10
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.2

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 324ms 1.9ms 1.6MB 313ms 0ms nim/clang 2.2.2
nim 2.nim 326ms 1.9ms 1.6MB 320ms 0ms nim 2.2.2
v 1.v 716ms 3.6ms 1.3MB 703ms 0ms v/clang 0.4.10
v 1.v 776ms 8.6ms 2.1MB 767ms 0ms v/clang+gc 0.4.10
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.2
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 50ms 1.1ms 1.3MB 40ms 0ms nim 2.2.2
nim 2.nim 50ms 0.7ms 1.6MB 40ms 0ms nim/clang 2.2.2
v 1.v 91ms 1.7ms 1.3MB 80ms 0ms v/clang 0.4.10
v 1.v 101ms 0.7ms 2.1MB 90ms 0ms v/clang+gc 0.4.10
nim 1.nim 440ms 2.2ms 1.5MB 430ms 0ms nim/clang 2.2.2
nim 1.nim 481ms 0.8ms 1.3MB 470ms 0ms nim 2.2.2

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 388ms 0.9ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 579ms 3.4ms 4.4MB 570ms 0ms nim 2.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 19ms 0.3ms 1.9MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 26ms 0.4ms 1.6MB 20ms 0ms nim 2.2.2

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 534ms 2.9ms 34.6MB 517ms 0ms nim 2.2.2
nim 1.nim 631ms 20ms 34.9MB 613ms 3ms nim/clang 2.2.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 114ms 2.7ms 9.6MB 100ms 0ms nim 2.2.2
nim 1.nim 135ms 3.0ms 9.9MB 123ms 0ms nim/clang 2.2.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 0.8ms 1.6MB 300ms 0ms v/clang 0.4.10
nim 2.nim 319ms 1.2ms 1.8MB 310ms 0ms nim 2.2.2
v 1.v 327ms 27ms 2.3MB 317ms 0ms v/clang+gc 0.4.10
nim 2.nim 342ms 0.5ms 2.0MB 330ms 0ms nim/clang 2.2.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 33ms 0.5ms 1.6MB 27ms 0ms v/clang 0.4.10
v 1.v 34ms 1.2ms 2.3MB 23ms 0ms v/clang+gc 0.4.10
nim 2.nim 34ms 0.6ms 1.8MB 27ms 0ms nim 2.2.2
nim 2.nim 37ms 1.4ms 2.0MB 30ms 0ms nim/clang 2.2.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 271ms 8.1ms 41.5MB 257ms 0ms nim 2.2.2
v 1.v 290ms 2.3ms 40.2MB 273ms 0ms v/clang 0.4.10
nim 1.nim 298ms 2.6ms 41.8MB 287ms 0ms nim/clang 2.2.2
v 1.v 303ms 2.9ms 41.1MB 290ms 0ms v/clang+gc 0.4.10
v 2.v 327ms 1.3ms 6.9MB 320ms 0ms v/clang+gc 0.4.10
v 2.v 332ms 2.2ms 6.1MB 320ms 0ms v/clang 0.4.10

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 51ms 0.5ms 11.5MB 40ms 0ms nim 2.2.2
nim 1.nim 57ms 0.8ms 11.8MB 50ms 0ms nim/clang 2.2.2
v 1.v 59ms 1.2ms 11.0MB 50ms 0ms v/clang 0.4.10
v 1.v 60ms 1.5ms 11.7MB 50ms 0ms v/clang+gc 0.4.10
v 2.v 81ms 0.9ms 3.1MB 70ms 0ms v/clang+gc 0.4.10
v 2.v 83ms 2.5ms 2.4MB 77ms 0ms v/clang 0.4.10

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1633ms 8.8ms 164.1MB 1603ms 13ms nim/clang 2.2.2
nim 1.nim 1703ms 20ms 163.9MB 1670ms 20ms nim 2.2.2
v 1.v timeout 0.0ms 83.0MB 4987ms 0ms v/clang+gc 0.4.10

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 173ms 2.3ms 20.9MB 160ms 0ms nim/clang 2.2.2
nim 1.nim 178ms 2.0ms 20.6MB 163ms 0ms nim 2.2.2
v 1.v 3483ms 37ms 26.0MB 3470ms 0ms v/clang+gc 0.4.10

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3590ms 1.4ms 1.6MB 3580ms 0ms nim/clang 2.2.2
nim 1.nim 3596ms 7.0ms 1.9MB 3583ms 0ms nim 2.2.2
v 1.v timeout 0.0ms 1.6MB 4990ms 0ms v/clang 0.4.10
v 1.v timeout 0.0ms 2.8MB 4990ms 0ms v/clang+gc 0.4.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 899ms 0.8ms 1.5MB 890ms 0ms nim/clang 2.2.2
nim 1.nim 901ms 1.6ms 1.3MB 890ms 0ms nim 2.2.2
v 1.v 1276ms 2.6ms 1.5MB 1270ms 0ms v/clang 0.4.10
v 1.v 1325ms 2.0ms 2.5MB 1317ms 0ms v/clang+gc 0.4.10

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 227ms 0.3ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 229ms 1.2ms 1.3MB 220ms 0ms nim 2.2.2
v 1.v 324ms 2.5ms 1.5MB 313ms 0ms v/clang 0.4.10
v 1.v 330ms 1.6ms 2.5MB 320ms 0ms v/clang+gc 0.4.10