Programming Language and compiler
Benchmarks

Go VS Nim benchmarks

Current benchmark data was generated on Thu May 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 775ms 6.2ms 33.9MB 757ms 10ms nim 2.2.4
nim 2.nim 953ms 12ms 35.2MB 933ms 7ms nim/clang 2.2.4
go 1.go 1220ms 11ms 55.0MB 1197ms 10ms tinygo 0.37.0
go 1-m.go 2348ms 15ms 40.2MB 5240ms 33ms go 1.24.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 76ms 2.3ms 5.5MB 67ms 0ms nim 2.2.4
nim 2.nim 92ms 3.6ms 5.8MB 83ms 0ms nim/clang 2.2.4
go 1.go 113ms 1.8ms 5.6MB 100ms 0ms tinygo 0.37.0
go 1-m.go 208ms 0.9ms 8.1MB 367ms 7ms 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 584ms 107ms 15.6MB 2280ms 0ms go 1.24.2
go 1.go 717ms 25ms 268.1MB 657ms 40ms tinygo 0.37.0
nim 1.nim timeout 0.0ms 554.2MB 2543ms 1993ms nim 2.2.4
nim 1.nim timeout 0.0ms 552.6MB 2487ms 2053ms nim/clang 2.2.4

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-m.go 38ms 5.1ms 7.4MB 127ms 0ms go 1.24.2
go 1.go 66ms 1.1ms 67.2MB 40ms 10ms tinygo 0.37.0
nim 1.nim 4338ms 12ms 519.4MB 2163ms 1750ms nim 2.2.4
nim 1.nim 4380ms 6.7ms 518.6MB 2120ms 1837ms nim/clang 2.2.4

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 117ms 2.3ms 8.6MB 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 35ms 0.5ms 8.2MB 30ms 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 2.6ms 5.5MB 2810ms 0ms go 1.24.2
go 3.go 2016ms 6.4ms 48.8MB 2000ms 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 76ms 0.8ms 5.6MB 207ms 0ms go 1.24.2
go 3.go 188ms 2.3ms 48.9MB 170ms 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 118ms 1.3ms 6.8MB 380ms 0ms go 1.24.2
nim 2.nim 187ms 0.8ms 1.5MB 180ms 0ms nim 2.2.4
nim 2.nim 243ms 2.3ms 1.8MB 233ms 0ms nim/clang 2.2.4
nim 1.nim 550ms 1.7ms 1.8MB 440ms 100ms nim/clang 2.2.4
nim 1.nim 574ms 3.5ms 1.5MB 467ms 97ms nim 2.2.4

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 17ms 1.1ms 7.5MB 30ms 0ms go 1.24.2
nim 2.nim 20ms 0.1ms 1.5MB 10ms 0ms nim 2.2.4
nim 2.nim 26ms 0.7ms 1.8MB 20ms 0ms nim/clang 2.2.4
nim 1.nim 58ms 0.4ms 1.8MB 40ms 3ms nim/clang 2.2.4
nim 1.nim 60ms 0.9ms 1.5MB 43ms 0ms nim 2.2.4

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 1.0ms 0.0ms 1.5MB 0ms 0ms nim 2.2.4
nim 1.nim 1.1ms 0.0ms 1.9MB 0ms 0ms nim/clang 2.2.4
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 1.8ms 54.0MB 340ms 87ms go 1.24.2
go 2-m.go 433ms 3.3ms 167.6MB 683ms 717ms go 1.24.2
go 1-m.go 458ms 59ms 176.0MB 783ms 747ms go 1.24.2

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 30ms 2.2ms 25.4MB 60ms 20ms go 1.24.2
go 2-m.go 72ms 2.7ms 38.3MB 93ms 110ms go 1.24.2
go 1-m.go 81ms 8.9ms 36.6MB 117ms 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 0.7ms 41.1MB 37ms 10ms go 1.24.2
go 1.go 146ms 5.2ms 18.7MB 140ms 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 254ms 5.8ms 145.2MB 243ms 50ms go 1.24.2
go 1.go 752ms 6.7ms 105.0MB 740ms 10ms 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 674ms 2.1ms 41.7MB 2390ms 20ms 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 132ms 1.0ms 23.6MB 343ms 30ms 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 112ms 3.7ms 1.6MB 103ms 0ms nim/clang 2.2.4
nim 2.nim 113ms 0.4ms 1.4MB 103ms 0ms nim 2.2.4
go 3.go 119ms 3.6ms 3.5MB 110ms 0ms go 1.24.2
go 3.go 134ms 4.5ms 0.5MB 127ms 0ms tinygo 0.37.0
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.4
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.4

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 325ms 2.2ms 1.6MB 320ms 0ms nim/clang 2.2.4
nim 2.nim 337ms 3.0ms 1.4MB 327ms 0ms nim 2.2.4
go 3.go 389ms 2.3ms 3.5MB 380ms 0ms go 1.24.2
go 3.go 389ms 4.8ms 0.5MB 383ms 0ms tinygo 0.37.0
nim 1.nim timeout 0.0ms 1.3MB 4990ms 0ms nim 2.2.4
nim 1.nim timeout 0.0ms 1.5MB 4990ms 0ms nim/clang 2.2.4

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 49ms 0.5ms 1.5MB 40ms 0ms nim/clang 2.2.4
nim 2.nim 51ms 0.7ms 1.3MB 40ms 0ms nim 2.2.4
go 3.go 52ms 1.1ms 3.5MB 47ms 0ms go 1.24.2
go 3.go 64ms 2.9ms 0.4MB 57ms 0ms tinygo 0.37.0
nim 1.nim 488ms 11ms 1.5MB 480ms 0ms nim/clang 2.2.4
nim 1.nim 493ms 16ms 1.3MB 483ms 0ms nim 2.2.4

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 387ms 1.0ms 4.8MB 380ms 0ms nim/clang 2.2.4
nim 1.nim 579ms 4.0ms 4.5MB 570ms 0ms nim 2.2.4
go 1.go 2666ms 6.7ms 7.7MB 2657ms 0ms go 1.24.2
go 1.go 4072ms 18ms 3.4MB 4063ms 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 0.5ms 1.9MB 10ms 0ms nim/clang 2.2.4
nim 1.nim 26ms 0.6ms 1.6MB 20ms 0ms nim 2.2.4
go 1.go 117ms 2.6ms 3.6MB 110ms 0ms go 1.24.2
go 1.go 174ms 4.9ms 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 545ms 3.9ms 34.9MB 523ms 7ms nim 2.2.4
nim 1.nim 627ms 17ms 35.2MB 610ms 3ms nim/clang 2.2.4
go 1.go 812ms 48ms 63.2MB 790ms 7ms tinygo 0.37.0
go 2.go 1106ms 0.8ms 55.0MB 1090ms 0ms tinygo 0.37.0
go 1-m.go 1446ms 5.8ms 41.0MB 3067ms 37ms go 1.24.2
go 2-m.go 1649ms 1.9ms 42.9MB 3640ms 33ms go 1.24.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 117ms 2.0ms 9.6MB 107ms 0ms nim 2.2.4
nim 1.nim 133ms 1.1ms 9.9MB 120ms 0ms nim/clang 2.2.4
go 1.go 174ms 1.1ms 9.8MB 160ms 0ms tinygo 0.37.0
go 2.go 205ms 4.5ms 17.1MB 187ms 0ms tinygo 0.37.0
go 1-m.go 329ms 1.3ms 12.2MB 667ms 23ms go 1.24.2
go 2-m.go 373ms 3.4ms 13.8MB 783ms 27ms go 1.24.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 320ms 1.7ms 1.8MB 310ms 0ms nim 2.2.4
nim 2.nim 344ms 1.7ms 2.0MB 337ms 0ms nim/clang 2.2.4
go 1.go 346ms 0.8ms 0.4MB 340ms 0ms tinygo 0.37.0
go 1.go 350ms 2.0ms 3.5MB 340ms 0ms go 1.24.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 35ms 0.5ms 1.8MB 30ms 0ms nim 2.2.4
nim 2.nim 37ms 0.5ms 2.0MB 30ms 0ms nim/clang 2.2.4
go 1.go 37ms 0.7ms 0.4MB 30ms 0ms tinygo 0.37.0
go 1.go 38ms 0.9ms 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
nim 1.nim 269ms 7.3ms 41.5MB 260ms 0ms nim 2.2.4
go 1.go 288ms 12ms 39.8MB 273ms 0ms tinygo 0.37.0
nim 1.nim 318ms 3.3ms 41.8MB 307ms 0ms nim/clang 2.2.4
go 1.go 321ms 6.3ms 71.7MB 307ms 0ms go 1.24.2
go 2.go 427ms 4.0ms 21.6MB 413ms 0ms tinygo 0.37.0
go 2.go 788ms 2.5ms 21.6MB 777ms 7ms go 1.24.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 54ms 4.3ms 11.5MB 47ms 0ms nim 2.2.4
go 1.go 57ms 1.6ms 10.5MB 47ms 0ms tinygo 0.37.0
nim 1.nim 65ms 1.4ms 11.8MB 57ms 0ms nim/clang 2.2.4
go 1.go 67ms 0.4ms 21.6MB 60ms 0ms go 1.24.2
go 2.go 109ms 0.7ms 4.9MB 100ms 0ms tinygo 0.37.0
go 2.go 197ms 3.1ms 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 1118ms 6.9ms 8.7MB 1103ms 3ms go 1.24.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 271ms 2.4ms 8.6MB 260ms 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 1644ms 4.7ms 152.4MB 1610ms 20ms nim/clang 2.2.4
nim 1.nim 1672ms 7.2ms 152.1MB 1640ms 20ms nim 2.2.4
go 3.go timeout 0.0ms 122.2MB 4987ms 40ms go 1.24.2
go 3.go timeout 0.0ms 130.5MB 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 173ms 1.3ms 17.6MB 160ms 0ms nim/clang 2.2.4
nim 1.nim 177ms 3.1ms 17.4MB 163ms 0ms nim 2.2.4
go 3.go 1800ms 15ms 20.2MB 1787ms 27ms go 1.24.2
go 3.go 2249ms 8.9ms 29.5MB 2230ms 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 90ms 0.7ms 5.2MB 83ms 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 25ms 0.2ms 5.2MB 17ms 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 1913ms 15ms 5.5MB 7410ms 3ms go 1.24.2
nim 1.nim 3589ms 1.3ms 1.6MB 3580ms 0ms nim/clang 2.2.4
nim 1.nim 3603ms 8.0ms 1.4MB 3597ms 0ms nim 2.2.4
go 1.go 3658ms 17ms 5.6MB 3650ms 0ms 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 489ms 15ms 5.5MB 1830ms 0ms go 1.24.2
nim 1.nim 899ms 0.2ms 1.5MB 890ms 0ms nim/clang 2.2.4
nim 1.nim 904ms 4.4ms 1.3MB 893ms 0ms nim 2.2.4
go 1.go 941ms 32ms 3.5MB 933ms 0ms go 1.24.2
go 1.go 1397ms 1.8ms 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 0.5ms 5.6MB 453ms 0ms go 1.24.2
nim 1.nim 227ms 0.6ms 1.5MB 220ms 0ms nim/clang 2.2.4
nim 1.nim 228ms 1.2ms 1.3MB 220ms 0ms nim 2.2.4
go 1.go 239ms 3.5ms 3.5MB 230ms 0ms go 1.24.2
go 1.go 351ms 1.0ms 0.4MB 343ms 0ms tinygo 0.37.0