Programming Language and compiler
Benchmarks

Nim VS Zig benchmarks

Current benchmark data was generated on Tue Apr 01 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
nim 2.nim 911ms 3.9ms 34.6MB 893ms 0ms nim 2.2.2
nim 2.nim 1032ms 45ms 34.9MB 1017ms 0ms nim/clang 2.2.2
zig 1.zig 1897ms 9.3ms 49.0MB 1870ms 13ms zig 0.14.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 88ms 2.3ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 93ms 2.6ms 5.8MB 80ms 0ms nim/clang 2.2.2
zig 1.zig 154ms 2.4ms 7.0MB 143ms 0ms zig 0.14.0

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 551.4MB 2497ms 2040ms nim 2.2.2
nim 1.nim timeout 0.0ms 559.8MB 2490ms 2047ms nim/clang 2.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 4356ms 55ms 519.8MB 2120ms 1803ms nim/clang 2.2.2
nim 1.nim 4452ms 76ms 519.4MB 2183ms 1837ms nim 2.2.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 87ms 0.8ms 1.0MB 80ms 0ms zig 0.14.0
nim 2.nim 187ms 0.9ms 1.5MB 177ms 0ms nim 2.2.2
nim 2.nim 238ms 0.7ms 1.8MB 227ms 0ms nim/clang 2.2.2
nim 1.nim 556ms 1.1ms 1.8MB 447ms 93ms nim/clang 2.2.2
nim 1.nim 579ms 0.3ms 1.5MB 467ms 97ms nim 2.2.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 3.3ms 1.0MB 0ms 0ms zig 0.14.0
nim 2.nim 22ms 0.4ms 1.5MB 13ms 0ms nim 2.2.2
nim 2.nim 26ms 0.4ms 1.8MB 20ms 0ms nim/clang 2.2.2
nim 1.nim 58ms 0.2ms 1.8MB 40ms 7ms nim/clang 2.2.2
nim 1.nim 62ms 1.0ms 1.5MB 43ms 7ms nim 2.2.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 1.0ms 0.0ms 1.1MB 0ms 0ms zig 0.14.0
nim 1.nim 1.0ms 0.1ms 1.6MB 0ms 0ms nim 2.2.2
nim 1.nim 1.2ms 0.0ms 1.9MB 0ms 0ms nim/clang 2.2.2

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 33ms 0.4ms 2.8MB 20ms 0ms zig 0.14.0
nim 2.nim 111ms 1.8ms 1.4MB 103ms 0ms nim 2.2.2
nim 2.nim 112ms 0.9ms 1.6MB 100ms 0ms nim/clang 2.2.2
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
zig 1.zig 93ms 2.9ms 2.8MB 83ms 0ms zig 0.14.0
nim 2.nim 328ms 2.7ms 1.6MB 317ms 0ms nim/clang 2.2.2
nim 2.nim 331ms 1.6ms 1.4MB 320ms 0ms nim 2.2.2
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
zig 1.zig 15ms 0.7ms 1.3MB 10ms 0ms zig 0.14.0
nim 2.nim 49ms 0.9ms 1.6MB 40ms 0ms nim/clang 2.2.2
nim 2.nim 50ms 0.3ms 1.3MB 40ms 0ms nim 2.2.2
nim 1.nim 442ms 4.2ms 1.8MB 433ms 0ms nim/clang 2.2.2
nim 1.nim 486ms 4.9ms 1.3MB 477ms 0ms nim 2.2.2

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 248ms 1.2ms 4.0MB 240ms 0ms zig 0.14.0
nim 1.nim 389ms 0.8ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 578ms 2.6ms 4.4MB 570ms 0ms nim 2.2.2

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.1ms 1.1MB 0ms 0ms zig 0.14.0
nim 1.nim 19ms 0.2ms 1.9MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 29ms 2.3ms 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 526ms 2.3ms 34.6MB 510ms 3ms nim 2.2.2
nim 1.nim 651ms 20ms 35.0MB 633ms 3ms nim/clang 2.2.2
zig 1.zig 866ms 5.7ms 41.0MB 840ms 13ms zig 0.14.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 115ms 1.7ms 9.6MB 103ms 0ms nim 2.2.2
nim 1.nim 135ms 1.5ms 9.9MB 120ms 0ms nim/clang 2.2.2
zig 1.zig 177ms 1.1ms 11.0MB 160ms 0ms zig 0.14.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 198ms 0.7ms 1.0MB 190ms 0ms zig 0.14.0
zig 2.zig 280ms 0.3ms 1.0MB 270ms 0ms zig 0.14.0
zig 1.zig 315ms 0.9ms 1.1MB 310ms 0ms zig 0.14.0
nim 2.nim 321ms 1.3ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 342ms 1.8ms 2.0MB 333ms 0ms nim/clang 2.2.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 22ms 0.3ms 1.0MB 13ms 0ms zig 0.14.0
zig 2.zig 30ms 0.1ms 1.0MB 20ms 0ms zig 0.14.0
zig 1.zig 34ms 0.5ms 1.1MB 30ms 0ms zig 0.14.0
nim 2.nim 34ms 0.6ms 1.8MB 30ms 0ms nim 2.2.2
nim 2.nim 38ms 0.7ms 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
zig 1.zig 286ms 9.1ms 40.1MB 270ms 0ms zig 0.14.0
nim 1.nim 290ms 15ms 41.5MB 277ms 0ms nim 2.2.2
zig 2.zig 326ms 2.2ms 6.0MB 313ms 0ms zig 0.14.0
nim 1.nim 349ms 1.9ms 41.8MB 333ms 0ms nim/clang 2.2.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 52ms 1.5ms 11.5MB 40ms 0ms nim 2.2.2
nim 1.nim 57ms 2.7ms 11.8MB 50ms 0ms nim/clang 2.2.2
zig 1.zig 57ms 1.8ms 10.8MB 47ms 0ms zig 0.14.0
zig 2.zig 82ms 0.8ms 2.3MB 70ms 0ms zig 0.14.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1632ms 7.3ms 164.3MB 1600ms 23ms nim/clang 2.2.2
nim 1.nim 1694ms 5.0ms 163.8MB 1663ms 20ms nim 2.2.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 173ms 1.4ms 20.9MB 157ms 3ms nim/clang 2.2.2
nim 1.nim 176ms 0.9ms 20.6MB 160ms 0ms nim 2.2.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 3591ms 2.6ms 1.6MB 3580ms 0ms nim/clang 2.2.2
nim 1.nim 3601ms 1.6ms 1.4MB 3590ms 0ms nim 2.2.2
zig 1.zig 3697ms 15ms 1.4MB 3687ms 0ms zig 0.14.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 901ms 1.4ms 1.8MB 890ms 0ms nim 2.2.2
nim 1.nim 905ms 9.6ms 1.5MB 897ms 0ms nim/clang 2.2.2
zig 1.zig 931ms 14ms 1.3MB 923ms 0ms zig 0.14.0

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 1.8ms 1.3MB 220ms 0ms nim 2.2.2
zig 1.zig 234ms 1.4ms 1.3MB 220ms 0ms zig 0.14.0