Programming Language and compiler
Benchmarks

V VS Nim 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
v 1.v 776ms 13ms 28.8MB 763ms 0ms v/clang+gc 0.4.10
nim 2.nim 934ms 16ms 34.6MB 917ms 3ms nim 2.2.2
nim 2.nim 960ms 15ms 34.9MB 947ms 0ms nim/clang 2.2.2
v 1.v 2181ms 25ms 2086.6MB 1293ms 870ms v/clang 0.4.10

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 72ms 2.7ms 4.6MB 60ms 0ms v/clang+gc 0.4.10
nim 2.nim 88ms 1.6ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 91ms 2.6ms 5.8MB 80ms 0ms nim/clang 2.2.2
v 1.v 210ms 4.3ms 198.0MB 120ms 80ms 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 559.4MB 2500ms 2040ms nim 2.2.2
nim 1.nim timeout 0.0ms 555.8MB 2460ms 2080ms nim/clang 2.2.2
v 1.v timeout 0.0ms 18.1MB 8697ms 10607ms v/clang 0.4.10
v 1.v timeout 0.0ms 18.0MB 8987ms 10223ms 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 1392ms 49ms 9.6MB 2267ms 2953ms v/clang 0.4.10
v 1-m.v 1502ms 58ms 10.3MB 2597ms 3033ms v/clang+gc 0.4.10
nim 1.nim 4313ms 32ms 519.8MB 2100ms 1790ms nim/clang 2.2.2
nim 1.nim 4341ms 20ms 519.4MB 2177ms 1743ms nim 2.2.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v timeout 0.0ms 8.3MB 4990ms 0ms v/clang+gc 0.4.10

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v timeout 0.0ms 4.6MB 4990ms 0ms v/clang+gc 0.4.10

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2235ms 1.8ms 1.9MB 2223ms 0ms v/clang+gc 0.4.10
v 1.v 2259ms 4.6ms 1.1MB 2253ms 0ms v/clang 0.4.10

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 190ms 2.6ms 1.9MB 180ms 0ms v/clang+gc 0.4.10
v 1.v 193ms 1.3ms 1.1MB 180ms 0ms v/clang 0.4.10

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 187ms 1.4ms 1.5MB 180ms 0ms nim 2.2.2
nim 2.nim 236ms 2.8ms 1.8MB 223ms 0ms nim/clang 2.2.2
v 1.v 499ms 3.2ms 1.3MB 490ms 0ms v/clang 0.4.10
v 1.v 517ms 2.6ms 2.1MB 507ms 0ms v/clang+gc 0.4.10
nim 1.nim 554ms 2.2ms 1.8MB 453ms 90ms nim/clang 2.2.2
nim 1.nim 575ms 2.2ms 1.5MB 473ms 90ms nim 2.2.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 21ms 0.6ms 1.5MB 10ms 0ms nim 2.2.2
nim 2.nim 26ms 0.3ms 1.8MB 20ms 0ms nim/clang 2.2.2
v 1.v 54ms 0.6ms 2.1MB 50ms 0ms v/clang+gc 0.4.10
v 1.v 54ms 1.5ms 1.3MB 47ms 0ms v/clang 0.4.10
nim 1.nim 58ms 0.8ms 1.8MB 40ms 0ms nim/clang 2.2.2
nim 1.nim 61ms 0.3ms 1.5MB 40ms 10ms 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 0.1ms 1.5MB 0ms 0ms nim 2.2.2
nim 1.nim 1.1ms 0.1ms 1.9MB 0ms 0ms nim/clang 2.2.2
v 1.v 1.3ms 0.0ms 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 110ms 0.4ms 1.4MB 100ms 0ms nim 2.2.2
nim 2.nim 114ms 0.7ms 1.9MB 110ms 0ms nim/clang 2.2.2
v 1.v 254ms 2.2ms 1.3MB 243ms 0ms v/clang 0.4.10
v 1.v 264ms 9.7ms 2.1MB 257ms 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 326ms 2.2ms 1.4MB 320ms 0ms nim 2.2.2
nim 2.nim 340ms 0.3ms 1.6MB 330ms 0ms nim/clang 2.2.2
v 1.v 753ms 8.3ms 1.5MB 743ms 0ms v/clang 0.4.10
v 1.v 770ms 12ms 2.1MB 760ms 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 49ms 0.2ms 1.5MB 40ms 0ms nim/clang 2.2.2
nim 2.nim 52ms 1.4ms 1.3MB 43ms 0ms nim 2.2.2
v 1.v 90ms 2.2ms 1.3MB 83ms 0ms v/clang 0.4.10
v 1.v 100ms 1.2ms 2.1MB 90ms 0ms v/clang+gc 0.4.10
nim 1.nim 446ms 2.7ms 1.5MB 440ms 0ms nim/clang 2.2.2
nim 1.nim 479ms 2.2ms 1.3MB 470ms 0ms nim 2.2.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 311ms 1.3ms 1.6MB 300ms 0ms v/clang 0.4.10
v 1.v 313ms 1.2ms 2.3MB 300ms 0ms v/clang+gc 0.4.10
nim 2.nim 319ms 0.9ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 342ms 1.8ms 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 30ms 0ms v/clang 0.4.10
v 1.v 34ms 0.4ms 2.3MB 30ms 0ms v/clang+gc 0.4.10
nim 2.nim 34ms 0.6ms 1.8MB 30ms 0ms nim 2.2.2
nim 2.nim 38ms 0.5ms 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 289ms 6.8ms 41.5MB 277ms 0ms nim 2.2.2
v 1.v 301ms 2.5ms 40.2MB 287ms 0ms v/clang 0.4.10
v 1.v 307ms 2.3ms 41.1MB 297ms 0ms v/clang+gc 0.4.10
nim 1.nim 329ms 8.1ms 41.8MB 317ms 0ms nim/clang 2.2.2
v 2.v 331ms 2.0ms 6.9MB 320ms 0ms v/clang+gc 0.4.10
v 2.v 332ms 2.6ms 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 53ms 2.7ms 11.5MB 40ms 0ms nim 2.2.2
nim 1.nim 56ms 3.9ms 11.8MB 43ms 0ms nim/clang 2.2.2
v 1.v 59ms 3.2ms 11.7MB 50ms 0ms v/clang+gc 0.4.10
v 1.v 59ms 1.2ms 11.0MB 50ms 0ms v/clang 0.4.10
v 2.v 82ms 1.6ms 3.1MB 73ms 0ms v/clang+gc 0.4.10
v 2.v 83ms 1.8ms 2.4MB 73ms 0ms v/clang 0.4.10

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 3232ms 64ms 3.4MB 3210ms 10ms v/clang+gc 0.4.10

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 795ms 37ms 2.6MB 780ms 0ms v/clang+gc 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 1632ms 4.8ms 164.1MB 1603ms 20ms nim/clang 2.2.2
nim 1.nim 1698ms 8.9ms 163.9MB 1667ms 13ms nim 2.2.2
v 1.v timeout 0.0ms 83.0MB 4983ms 3ms 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 172ms 1.7ms 20.9MB 160ms 0ms nim/clang 2.2.2
nim 1.nim 178ms 1.9ms 20.6MB 163ms 0ms nim 2.2.2
v 1.v 3588ms 122ms 26.0MB 3577ms 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 3587ms 0.7ms 1.6MB 3580ms 0ms nim/clang 2.2.2
nim 1.nim 3592ms 2.0ms 1.4MB 3580ms 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 900ms 0.9ms 1.5MB 890ms 0ms nim/clang 2.2.2
nim 1.nim 902ms 2.5ms 1.3MB 890ms 0ms nim 2.2.2
v 1.v 1284ms 0.9ms 1.5MB 1277ms 0ms v/clang 0.4.10
v 1.v 1299ms 2.5ms 2.5MB 1290ms 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 0.4ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 227ms 1.0ms 1.3MB 220ms 0ms nim 2.2.2
v 1.v 325ms 1.3ms 1.5MB 320ms 0ms v/clang 0.4.10
v 1.v 326ms 0.2ms 2.5MB 320ms 0ms v/clang+gc 0.4.10