Programming Language and compiler
Benchmarks

Go VS Nim benchmarks

Current benchmark data was generated on Tue Mar 25 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 909ms 6.8ms 34.6MB 893ms 0ms nim 2.2.2
nim 2.nim 952ms 13ms 34.9MB 937ms 0ms nim/clang 2.2.2
go 1.go 1269ms 2.1ms 54.9MB 1247ms 7ms tinygo 0.37.0
go 1-m.go 2414ms 64ms 46.3MB 5500ms 40ms go 1.24.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 89ms 2.7ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 93ms 1.8ms 5.8MB 80ms 0ms nim/clang 2.2.2
go 1.go 117ms 2.2ms 5.6MB 107ms 0ms tinygo 0.37.0
go 1-m.go 211ms 1.3ms 7.9MB 373ms 10ms go 1.24.1

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 457ms 43ms 14.8MB 1773ms 0ms go 1.24.1
go 1.go 741ms 2.7ms 269.0MB 683ms 43ms tinygo 0.37.0
nim 1.nim timeout 0.0ms 553.5MB 2540ms 2000ms nim 2.2.2
nim 1.nim timeout 0.0ms 559.8MB 2507ms 2027ms 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 42ms 3.4ms 7.5MB 137ms 0ms go 1.24.1
go 1.go 73ms 2.2ms 68.8MB 50ms 10ms tinygo 0.37.0
nim 1.nim 4311ms 7.9ms 519.8MB 2117ms 1770ms nim/clang 2.2.2
nim 1.nim 4368ms 20ms 519.3MB 2157ms 1783ms nim 2.2.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 120ms 0.5ms 10.3MB 110ms 0ms go 1.24.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 34ms 0.7ms 8.2MB 30ms 0ms go 1.24.1

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 688ms 26ms 3.5MB 2590ms 0ms go 1.24.1
go 3.go 2017ms 0.3ms 48.6MB 1997ms 7ms tinygo 0.37.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 74ms 0.4ms 5.6MB 197ms 0ms go 1.24.1
go 3.go 194ms 0.5ms 49.0MB 173ms 3ms 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 127ms 1.0ms 7.5MB 377ms 3ms go 1.24.1
nim 2.nim 189ms 1.0ms 1.5MB 180ms 0ms nim 2.2.2
nim 2.nim 235ms 1.2ms 1.8MB 227ms 0ms nim/clang 2.2.2
nim 1.nim 555ms 2.0ms 1.8MB 453ms 87ms nim/clang 2.2.2
nim 1.nim 580ms 1.8ms 1.5MB 467ms 103ms 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 0.2ms 7.5MB 33ms 0ms go 1.24.1
nim 2.nim 21ms 1.0ms 1.5MB 10ms 0ms nim 2.2.2
nim 2.nim 26ms 0.5ms 1.8MB 20ms 0ms nim/clang 2.2.2
nim 1.nim 59ms 1.4ms 1.8MB 40ms 3ms nim/clang 2.2.2
nim 1.nim 61ms 1.3ms 1.5MB 43ms 3ms 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 0.1ms 0.4MB 0ms 0ms tinygo 0.37.0
nim 1.nim 1.1ms 0.0ms 1.4MB 0ms 0ms nim 2.2.2
nim 1.nim 1.2ms 0.1ms 1.8MB 0ms 0ms nim/clang 2.2.2
go 1.go 1.3ms 0.7ms 3.4MB 0ms 0ms go 1.24.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 123ms 7.0ms 56.3MB 340ms 93ms go 1.24.1
go 1-m.go 427ms 28ms 170.8MB 743ms 673ms go 1.24.1
go 2-m.go 435ms 0.9ms 168.4MB 703ms 713ms go 1.24.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 30ms 1.4ms 25.6MB 53ms 20ms go 1.24.1
go 1-m.go 76ms 6.3ms 36.7MB 100ms 110ms go 1.24.1
go 2-m.go 77ms 12ms 33.7MB 93ms 120ms go 1.24.1

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 47ms 2.4ms 41.1MB 37ms 7ms go 1.24.1
go 1.go 144ms 4.5ms 18.8MB 137ms 0ms go 1.24.1

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 2-ffi.go 255ms 13ms 151.3MB 243ms 50ms go 1.24.1
go 1.go 760ms 6.5ms 107.0MB 747ms 13ms go 1.24.1

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 7-m.go 689ms 8.1ms 40.1MB 2413ms 33ms go 1.24.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 7-m.go 131ms 3.0ms 22.7MB 347ms 20ms go 1.24.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 112ms 1.0ms 1.6MB 100ms 0ms nim/clang 2.2.2
nim 2.nim 112ms 1.7ms 1.8MB 103ms 0ms nim 2.2.2
go 3.go 123ms 2.4ms 3.5MB 113ms 0ms go 1.24.1
go 3.go 134ms 3.6ms 0.5MB 127ms 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 328ms 1.5ms 1.6MB 320ms 0ms nim/clang 2.2.2
nim 2.nim 331ms 2.1ms 1.4MB 320ms 0ms nim 2.2.2
go 3.go 385ms 7.4ms 3.5MB 377ms 0ms go 1.24.1
go 3.go 389ms 4.4ms 0.5MB 377ms 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: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 50ms 1.8ms 1.5MB 40ms 0ms nim/clang 2.2.2
nim 2.nim 50ms 1.3ms 1.3MB 40ms 0ms nim 2.2.2
go 3.go 52ms 2.6ms 3.5MB 43ms 0ms go 1.24.1
go 3.go 65ms 2.0ms 0.4MB 57ms 0ms tinygo 0.37.0
nim 1.nim 445ms 9.6ms 1.5MB 437ms 0ms nim/clang 2.2.2
nim 1.nim 480ms 3.4ms 1.3MB 473ms 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 0.7ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 577ms 2.5ms 4.4MB 567ms 0ms nim 2.2.2
go 1.go 3230ms 5.6ms 7.7MB 3220ms 0ms go 1.24.1
go 1.go 4083ms 22ms 3.4MB 4073ms 0ms tinygo 0.37.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 19ms 0.4ms 2.0MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 27ms 1.4ms 1.6MB 20ms 0ms nim 2.2.2
go 1.go 139ms 2.7ms 3.6MB 130ms 0ms go 1.24.1
go 1.go 170ms 0.3ms 0.5MB 160ms 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 545ms 5.4ms 34.6MB 527ms 0ms nim 2.2.2
nim 1.nim 618ms 12ms 34.9MB 597ms 3ms nim/clang 2.2.2
go 1.go 886ms 4.8ms 63.1MB 863ms 10ms tinygo 0.37.0
go 2.go 1140ms 2.7ms 55.0MB 1113ms 10ms tinygo 0.37.0
go 1-m.go 1477ms 1.1ms 45.0MB 3100ms 50ms go 1.24.1
go 2-m.go 1708ms 9.0ms 40.9MB 3773ms 33ms go 1.24.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 116ms 0.7ms 9.6MB 100ms 0ms nim 2.2.2
nim 1.nim 134ms 1.4ms 9.9MB 120ms 0ms nim/clang 2.2.2
go 1.go 175ms 2.5ms 9.8MB 160ms 0ms tinygo 0.37.0
go 2.go 209ms 3.5ms 17.1MB 193ms 0ms tinygo 0.37.0
go 1-m.go 343ms 10ms 12.3MB 687ms 17ms go 1.24.1
go 2-m.go 376ms 1.3ms 14.0MB 800ms 27ms go 1.24.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 320ms 3.2ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 347ms 6.4ms 2.0MB 337ms 0ms nim/clang 2.2.2
go 1.go 350ms 2.9ms 0.4MB 340ms 0ms tinygo 0.37.0
go 1.go 352ms 2.1ms 3.5MB 343ms 0ms go 1.24.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 35ms 1.0ms 1.8MB 30ms 0ms nim 2.2.2
go 1.go 37ms 0.8ms 0.4MB 30ms 0ms tinygo 0.37.0
nim 2.nim 37ms 1.3ms 2.0MB 30ms 0ms nim/clang 2.2.2
go 1.go 39ms 1.2ms 3.5MB 30ms 0ms go 1.24.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 298ms 11ms 39.8MB 287ms 0ms tinygo 0.37.0
go 1.go 319ms 10ms 71.7MB 300ms 3ms go 1.24.1
nim 1.nim 320ms 5.6ms 41.8MB 307ms 0ms nim/clang 2.2.2
nim 1.nim 330ms 8.4ms 41.5MB 317ms 0ms nim 2.2.2
go 2.go 429ms 0.7ms 20.3MB 420ms 0ms tinygo 0.37.0
go 2.go 746ms 4.0ms 21.5MB 733ms 3ms go 1.24.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 54ms 3.4ms 10.1MB 43ms 0ms tinygo 0.37.0
nim 1.nim 56ms 4.0ms 11.5MB 47ms 0ms nim 2.2.2
go 1.go 59ms 3.4ms 21.7MB 50ms 0ms go 1.24.1
nim 1.nim 59ms 4.5ms 11.8MB 50ms 0ms nim/clang 2.2.2
go 2.go 108ms 0.7ms 4.9MB 100ms 0ms tinygo 0.37.0
go 2.go 184ms 1.0ms 6.1MB 173ms 0ms go 1.24.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 1188ms 4.7ms 8.6MB 1177ms 0ms go 1.24.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 282ms 2.2ms 8.6MB 270ms 0ms go 1.24.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 1640ms 16ms 164.0MB 1607ms 17ms nim/clang 2.2.2
nim 1.nim 1702ms 8.7ms 163.9MB 1670ms 20ms nim 2.2.2
go 3.go timeout 0.0ms 122.3MB 4977ms 50ms go 1.24.1
go 3.go timeout 0.0ms 135.0MB 4973ms 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 174ms 1.8ms 20.9MB 160ms 0ms nim/clang 2.2.2
nim 1.nim 179ms 0.8ms 20.6MB 160ms 0ms nim 2.2.2
go 3.go 1778ms 45ms 20.0MB 1760ms 27ms go 1.24.1
go 3.go 2278ms 37ms 27.6MB 2260ms 3ms 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 91ms 1.2ms 7.3MB 83ms 0ms go 1.24.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 0-ffi.go 25ms 0.5ms 5.2MB 20ms 0ms go 1.24.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 1909ms 14ms 5.4MB 7403ms 3ms go 1.24.1
nim 1.nim 3592ms 5.8ms 1.6MB 3583ms 0ms nim/clang 2.2.2
nim 1.nim 3603ms 11ms 1.4MB 3593ms 0ms nim 2.2.2
go 1.go 3659ms 17ms 5.5MB 3650ms 3ms go 1.24.1
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 0.7ms 5.5MB 1840ms 0ms go 1.24.1
nim 1.nim 901ms 1.0ms 1.8MB 890ms 0ms nim 2.2.2
nim 1.nim 902ms 2.9ms 1.5MB 890ms 0ms nim/clang 2.2.2
go 1.go 916ms 2.1ms 3.5MB 907ms 0ms go 1.24.1
go 1.go 1397ms 0.6ms 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 125ms 0.9ms 5.6MB 457ms 0ms go 1.24.1
nim 1.nim 227ms 0.4ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 228ms 0.8ms 1.3MB 220ms 0ms nim 2.2.2
go 1.go 232ms 1.7ms 3.5MB 223ms 0ms go 1.24.1
go 1.go 351ms 0.3ms 0.4MB 340ms 0ms tinygo 0.37.0