Programming Language and compiler
Benchmarks

Go VS Nim benchmarks

Current benchmark data was generated on Sat Mar 29 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 939ms 15ms 34.6MB 920ms 0ms nim 2.2.2
nim 2.nim 973ms 14ms 34.9MB 957ms 0ms nim/clang 2.2.2
go 1.go 1256ms 11ms 55.0MB 1230ms 10ms tinygo 0.37.0
go 1-m.go 2402ms 27ms 39.8MB 5327ms 37ms go 1.24.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 89ms 2.5ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 92ms 1.1ms 5.9MB 80ms 0ms nim/clang 2.2.2
go 1.go 114ms 0.9ms 5.6MB 103ms 0ms tinygo 0.37.0
go 1-m.go 211ms 0.7ms 8.0MB 377ms 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 580ms 121ms 15.6MB 2267ms 0ms go 1.24.1
go 1.go 765ms 10ms 268.6MB 710ms 40ms tinygo 0.37.0
nim 1.nim timeout 0.0ms 553.5MB 2477ms 2063ms nim 2.2.2
nim 1.nim timeout 0.0ms 559.8MB 2450ms 2083ms 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 48ms 11ms 7.5MB 157ms 0ms go 1.24.1
go 1.go 72ms 2.9ms 68.6MB 50ms 10ms tinygo 0.37.0
nim 1.nim 4293ms 23ms 519.8MB 2077ms 1787ms nim/clang 2.2.2
nim 1.nim 4388ms 8.6ms 519.4MB 2163ms 1797ms nim 2.2.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 118ms 1.1ms 8.4MB 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 1.0ms 8.2MB 27ms 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 674ms 1.8ms 3.5MB 2597ms 0ms go 1.24.1
go 3.go 2019ms 0.7ms 48.6MB 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 74ms 0.8ms 3.5MB 200ms 0ms go 1.24.1
go 3.go 194ms 2.2ms 48.4MB 180ms 0ms 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 126ms 0.7ms 5.5MB 380ms 0ms go 1.24.1
nim 2.nim 188ms 1.4ms 1.5MB 177ms 0ms nim 2.2.2
nim 2.nim 235ms 2.2ms 1.8MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 557ms 2.8ms 1.8MB 453ms 90ms nim/clang 2.2.2
nim 1.nim 578ms 2.2ms 1.5MB 467ms 97ms nim 2.2.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 18ms 1.2ms 7.5MB 30ms 0ms go 1.24.1
nim 2.nim 21ms 0.6ms 1.5MB 10ms 0ms nim 2.2.2
nim 2.nim 26ms 0.1ms 1.8MB 20ms 0ms nim/clang 2.2.2
nim 1.nim 59ms 1.1ms 1.8MB 40ms 7ms nim/clang 2.2.2
nim 1.nim 61ms 1.2ms 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 1.2ms 0.1ms 1.9MB 0ms 0ms nim/clang 2.2.2
go 1.go 1.5ms 0.1ms 3.4MB 0ms 0ms go 1.24.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 123ms 2.3ms 54.1MB 327ms 87ms go 1.24.1
go 1-m.go 422ms 7.0ms 166.6MB 747ms 670ms go 1.24.1
go 2-m.go 430ms 6.7ms 176.9MB 673ms 740ms go 1.24.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1-http2.go 24ms 13ms 25.5MB 65ms 15ms go 1.24.1
go 2-m.go 72ms 9.5ms 36.3MB 90ms 110ms go 1.24.1
go 1-m.go 81ms 10ms 38.7MB 103ms 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 46ms 1.2ms 41.1MB 37ms 7ms go 1.24.1
go 1.go 143ms 0.8ms 18.7MB 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 252ms 7.1ms 151.4MB 243ms 40ms go 1.24.1
go 1.go 744ms 2.4ms 104.9MB 737ms 7ms 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 692ms 18ms 39.6MB 2383ms 30ms 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 132ms 5.1ms 23.6MB 347ms 23ms 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 2.2ms 1.4MB 103ms 0ms nim 2.2.2
nim 2.nim 113ms 2.4ms 1.6MB 103ms 0ms nim/clang 2.2.2
go 3.go 120ms 1.0ms 3.5MB 110ms 0ms go 1.24.1
go 3.go 135ms 1.8ms 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 327ms 2.7ms 1.4MB 317ms 0ms nim 2.2.2
nim 2.nim 333ms 2.8ms 1.6MB 323ms 0ms nim/clang 2.2.2
go 3.go 386ms 3.0ms 0.5MB 377ms 0ms tinygo 0.37.0
go 3.go 389ms 10ms 3.5MB 380ms 0ms go 1.24.1
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 1.0ms 1.3MB 40ms 0ms nim 2.2.2
go 3.go 50ms 2.0ms 3.5MB 40ms 0ms go 1.24.1
nim 2.nim 50ms 1.3ms 1.5MB 40ms 0ms nim/clang 2.2.2
go 3.go 66ms 3.8ms 0.4MB 60ms 0ms tinygo 0.37.0
nim 1.nim 457ms 14ms 1.5MB 447ms 0ms nim/clang 2.2.2
nim 1.nim 485ms 9.7ms 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
nim 1.nim 388ms 1.1ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 576ms 1.1ms 4.4MB 570ms 0ms nim 2.2.2
go 1.go 3235ms 5.1ms 7.7MB 3227ms 0ms go 1.24.1
go 1.go 4074ms 3.0ms 3.4MB 4067ms 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 2.2.2
nim 1.nim 26ms 0.5ms 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 174ms 4.6ms 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 536ms 5.2ms 34.6MB 517ms 0ms nim 2.2.2
nim 1.nim 634ms 23ms 34.9MB 617ms 3ms nim/clang 2.2.2
go 1.go 824ms 47ms 63.1MB 803ms 7ms tinygo 0.37.0
go 2.go 1128ms 4.9ms 54.9MB 1107ms 10ms tinygo 0.37.0
go 1-m.go 1480ms 7.2ms 38.8MB 3130ms 43ms go 1.24.1
go 2-m.go 1701ms 23ms 43.0MB 3723ms 43ms go 1.24.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 117ms 2.6ms 9.6MB 103ms 0ms nim 2.2.2
nim 1.nim 136ms 2.3ms 9.9MB 120ms 0ms nim/clang 2.2.2
go 1.go 178ms 1.1ms 9.8MB 167ms 0ms tinygo 0.37.0
go 2.go 206ms 4.8ms 17.2MB 190ms 0ms tinygo 0.37.0
go 1-m.go 334ms 3.1ms 13.9MB 680ms 20ms go 1.24.1
go 2-m.go 375ms 1.8ms 14.0MB 800ms 17ms go 1.24.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 321ms 0.7ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 345ms 0.7ms 2.0MB 337ms 0ms nim/clang 2.2.2
go 1.go 348ms 0.1ms 3.5MB 340ms 0ms go 1.24.1
go 1.go 350ms 4.0ms 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 35ms 0.6ms 1.8MB 30ms 0ms nim 2.2.2
go 1.go 37ms 0.7ms 0.4MB 30ms 0ms tinygo 0.37.0
go 1.go 39ms 1.2ms 3.5MB 30ms 0ms go 1.24.1
nim 2.nim 43ms 4.9ms 2.0MB 33ms 0ms nim/clang 2.2.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 295ms 16ms 39.8MB 277ms 0ms tinygo 0.37.0
go 1.go 300ms 7.4ms 71.7MB 287ms 3ms go 1.24.1
nim 1.nim 314ms 16ms 41.8MB 303ms 0ms nim/clang 2.2.2
nim 1.nim 316ms 3.7ms 41.5MB 303ms 0ms nim 2.2.2
go 2.go 432ms 4.6ms 21.6MB 420ms 0ms tinygo 0.37.0
go 2.go 747ms 4.4ms 21.7MB 733ms 13ms go 1.24.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 52ms 1.3ms 10.2MB 40ms 0ms tinygo 0.37.0
nim 1.nim 56ms 2.8ms 11.5MB 47ms 0ms nim 2.2.2
nim 1.nim 60ms 5.5ms 11.8MB 47ms 0ms nim/clang 2.2.2
go 1.go 60ms 4.5ms 21.6MB 50ms 0ms go 1.24.1
go 2.go 106ms 1.4ms 4.9MB 100ms 0ms tinygo 0.37.0
go 2.go 180ms 1.3ms 5.8MB 170ms 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 1197ms 8.0ms 8.5MB 1183ms 7ms go 1.24.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 8.go 282ms 4.3ms 8.6MB 273ms 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 1631ms 8.4ms 164.1MB 1603ms 10ms nim/clang 2.2.2
nim 1.nim 1689ms 6.4ms 163.9MB 1660ms 17ms nim 2.2.2
go 3.go timeout 0.0ms 122.4MB 4980ms 47ms go 1.24.1
go 3.go timeout 0.0ms 122.8MB 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 172ms 3.9ms 18.3MB 160ms 0ms nim/clang 2.2.2
nim 1.nim 180ms 2.6ms 20.5MB 167ms 0ms nim 2.2.2
go 3.go 1764ms 3.2ms 19.8MB 1753ms 20ms go 1.24.1
go 3.go 2281ms 13ms 26.6MB 2263ms 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 92ms 0.4ms 5.2MB 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 27ms 1.3ms 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 1901ms 1.6ms 5.5MB 7417ms 3ms go 1.24.1
nim 1.nim 3596ms 8.4ms 1.6MB 3587ms 0ms nim/clang 2.2.2
nim 1.nim 3599ms 8.1ms 1.4MB 3593ms 0ms nim 2.2.2
go 1.go 3665ms 8.1ms 5.6MB 3660ms 0ms 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 482ms 2.2ms 5.6MB 1837ms 3ms go 1.24.1
nim 1.nim 899ms 0.6ms 1.5MB 890ms 0ms nim/clang 2.2.2
nim 1.nim 902ms 2.3ms 1.3MB 890ms 0ms nim 2.2.2
go 1.go 918ms 5.1ms 3.5MB 907ms 0ms go 1.24.1
go 1.go 1397ms 0.3ms 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 0.6ms 5.5MB 453ms 0ms go 1.24.1
nim 1.nim 227ms 0.5ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 229ms 0.9ms 1.3MB 220ms 0ms nim 2.2.2
go 1.go 234ms 0.8ms 3.5MB 227ms 0ms go 1.24.1
go 1.go 351ms 0.2ms 0.4MB 340ms 0ms tinygo 0.37.0