Programming Language and compiler
Benchmarks

Go 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
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
go 1.go 1227ms 3.5ms 55.0MB 1207ms 7ms tinygo 0.37.0
go 1-m.go 2353ms 1.9ms 39.8MB 5253ms 37ms go 1.24.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
go 1.go 113ms 1.4ms 5.6MB 100ms 0ms tinygo 0.37.0
go 1-m.go 209ms 2.4ms 8.1MB 370ms 10ms go 1.24.2

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 621ms 136ms 15.5MB 2377ms 0ms go 1.24.2
go 1.go 719ms 7.5ms 268.8MB 663ms 40ms tinygo 0.37.0
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

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 43ms 2.2ms 7.4MB 143ms 0ms go 1.24.2
go 1.go 68ms 2.1ms 68.5MB 47ms 10ms tinygo 0.37.0
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
go 1.go 117ms 0.9ms 10.4MB 110ms 0ms go 1.24.2

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 33ms 0.2ms 8.2MB 27ms 0ms go 1.24.2

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 727ms 1.8ms 5.5MB 2810ms 0ms go 1.24.2
go 3.go 2004ms 3.4ms 48.9MB 1983ms 3ms tinygo 0.37.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 76ms 1.0ms 5.6MB 207ms 0ms go 1.24.2
go 3.go 191ms 1.3ms 48.1MB 163ms 13ms tinygo 0.37.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 117ms 0.3ms 7.5MB 380ms 0ms go 1.24.2
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
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
go 3-m.go 17ms 1.3ms 7.5MB 30ms 0ms go 1.24.2
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
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
go 1.go 0.9ms 0.0ms 0.4MB 0ms 0ms tinygo 0.37.0
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
go 1.go 1.5ms 0.1ms 3.4MB 0ms 0ms go 1.24.2

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 123ms 2.4ms 60.3MB 333ms 77ms go 1.24.2
go 2-m.go 416ms 8.9ms 174.9MB 703ms 690ms go 1.24.2
go 1-m.go 422ms 20ms 172.9MB 730ms 673ms go 1.24.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 21ms 12ms 27.6MB 50ms 15ms go 1.24.2
go 2-m.go 80ms 14ms 37.9MB 97ms 120ms go 1.24.2
go 1-m.go 81ms 19ms 36.6MB 113ms 117ms go 1.24.2

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 46ms 2.2ms 41.1MB 40ms 3ms go 1.24.2
go 1.go 142ms 0.7ms 18.7MB 137ms 0ms go 1.24.2

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 251ms 15ms 131.1MB 230ms 53ms go 1.24.2
go 1.go 751ms 2.0ms 104.9MB 737ms 17ms go 1.24.2

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 7-m.go 679ms 5.3ms 41.5MB 2393ms 23ms go 1.24.2

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 7-m.go 130ms 3.5ms 22.2MB 343ms 17ms go 1.24.2

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
go 3.go 119ms 2.9ms 3.5MB 113ms 0ms go 1.24.2
go 3.go 131ms 2.5ms 0.5MB 123ms 0ms tinygo 0.37.0
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
go 3.go 388ms 3.0ms 0.5MB 380ms 0ms tinygo 0.37.0
go 3.go 391ms 1.6ms 3.5MB 380ms 0ms go 1.24.2
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
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
go 3.go 52ms 0.6ms 3.5MB 40ms 0ms go 1.24.2
go 3.go 65ms 1.0ms 0.4MB 60ms 0ms tinygo 0.37.0
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

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 386ms 0.2ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 576ms 0.7ms 4.4MB 570ms 0ms nim 2.2.2
go 1.go 2665ms 11ms 7.7MB 2660ms 0ms go 1.24.2
go 1.go 4081ms 15ms 3.4MB 4070ms 0ms tinygo 0.37.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 18ms 0.2ms 1.9MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 26ms 0.9ms 1.6MB 20ms 0ms nim 2.2.2
go 1.go 114ms 1.2ms 3.7MB 110ms 0ms go 1.24.2
go 1.go 173ms 2.8ms 0.5MB 167ms 0ms tinygo 0.37.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 532ms 4.4ms 34.6MB 513ms 0ms nim 2.2.2
nim 1.nim 609ms 7.4ms 34.9MB 593ms 0ms nim/clang 2.2.2
go 1.go 815ms 44ms 63.2MB 797ms 7ms tinygo 0.37.0
go 2.go 1122ms 7.5ms 54.9MB 1103ms 7ms tinygo 0.37.0
go 1-m.go 1448ms 9.5ms 38.9MB 3070ms 33ms go 1.24.2
go 2-m.go 1677ms 13ms 43.0MB 3693ms 33ms go 1.24.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 113ms 0.7ms 9.6MB 100ms 0ms nim 2.2.2
nim 1.nim 134ms 2.0ms 9.9MB 123ms 0ms nim/clang 2.2.2
go 1.go 176ms 3.7ms 9.8MB 163ms 0ms tinygo 0.37.0
go 2.go 207ms 2.5ms 17.1MB 190ms 0ms tinygo 0.37.0
go 1-m.go 331ms 5.3ms 14.0MB 663ms 20ms go 1.24.2
go 2-m.go 373ms 0.8ms 13.9MB 783ms 23ms go 1.24.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
go 1.go 348ms 0.6ms 3.5MB 340ms 0ms go 1.24.2
go 1.go 351ms 5.8ms 0.4MB 343ms 0ms tinygo 0.37.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 34ms 0.6ms 1.8MB 30ms 0ms nim 2.2.2
go 1.go 37ms 0.7ms 0.4MB 30ms 0ms tinygo 0.37.0
nim 2.nim 38ms 0.5ms 2.0MB 30ms 0ms nim/clang 2.2.2
go 1.go 39ms 0.7ms 3.5MB 30ms 0ms go 1.24.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 287ms 7.7ms 39.7MB 273ms 0ms tinygo 0.37.0
nim 1.nim 289ms 6.8ms 41.5MB 277ms 0ms nim 2.2.2
go 1.go 310ms 4.7ms 71.6MB 293ms 0ms go 1.24.2
nim 1.nim 329ms 8.1ms 41.8MB 317ms 0ms nim/clang 2.2.2
go 2.go 425ms 4.9ms 21.4MB 413ms 0ms tinygo 0.37.0
go 2.go 801ms 7.5ms 21.5MB 783ms 10ms go 1.24.2

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
go 1.go 54ms 2.7ms 10.4MB 47ms 0ms tinygo 0.37.0
nim 1.nim 56ms 3.9ms 11.8MB 43ms 0ms nim/clang 2.2.2
go 1.go 65ms 3.1ms 21.6MB 57ms 0ms go 1.24.2
go 2.go 106ms 1.1ms 4.9MB 97ms 0ms tinygo 0.37.0
go 2.go 195ms 2.9ms 6.1MB 183ms 0ms go 1.24.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 1132ms 4.8ms 8.7MB 1117ms 0ms go 1.24.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 269ms 4.3ms 8.5MB 257ms 0ms go 1.24.2

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
go 3.go timeout 0.0ms 122.4MB 4990ms 40ms go 1.24.2
go 3.go timeout 0.0ms 132.0MB 4977ms 10ms tinygo 0.37.0

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
go 3.go 1787ms 20ms 20.4MB 1770ms 20ms go 1.24.2
go 3.go 2260ms 16ms 27.5MB 2243ms 0ms tinygo 0.37.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 93ms 0.9ms 7.2MB 90ms 0ms go 1.24.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 27ms 0.2ms 5.2MB 20ms 0ms go 1.24.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 1911ms 19ms 5.4MB 7407ms 10ms go 1.24.2
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
go 1.go 3650ms 0.9ms 5.6MB 3640ms 3ms go 1.24.2
go 1.go timeout 0.0ms 0.5MB 4990ms 0ms tinygo 0.37.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 481ms 0.8ms 5.5MB 1843ms 0ms go 1.24.2
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
go 1.go 921ms 11ms 3.5MB 913ms 0ms go 1.24.2
go 1.go 1397ms 1.5ms 0.5MB 1390ms 0ms tinygo 0.37.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 126ms 0.6ms 5.5MB 450ms 0ms go 1.24.2
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
go 1.go 235ms 5.5ms 3.5MB 223ms 0ms go 1.24.2
go 1.go 352ms 1.2ms 0.4MB 340ms 0ms tinygo 0.37.0