Programming Language and compiler
Benchmarks

Nim VS Go benchmarks

Current benchmark data was generated on Mon Mar 31 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 951ms 22ms 34.6MB 933ms 0ms nim 2.2.2
nim 2.nim 1044ms 46ms 34.9MB 1030ms 0ms nim/clang 2.2.2
go 1.go 1214ms 12ms 55.0MB 1190ms 10ms tinygo 0.37.0
go 1-m.go 2372ms 13ms 46.1MB 5267ms 43ms go 1.24.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 2.nim 91ms 1.0ms 5.5MB 80ms 0ms nim 2.2.2
nim 2.nim 92ms 1.1ms 5.8MB 80ms 0ms nim/clang 2.2.2
go 1.go 115ms 1.5ms 5.6MB 107ms 0ms tinygo 0.37.0
go 1-m.go 209ms 0.5ms 8.0MB 370ms 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 473ms 8.9ms 15.6MB 1833ms 3ms go 1.24.1
go 1.go 723ms 8.5ms 269.4MB 670ms 37ms tinygo 0.37.0
nim 1.nim timeout 0.0ms 553.5MB 2527ms 2017ms nim 2.2.2
nim 1.nim timeout 0.0ms 555.8MB 2507ms 2037ms 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 38ms 6.0ms 7.5MB 123ms 0ms go 1.24.1
go 1.go 70ms 2.6ms 68.3MB 50ms 10ms tinygo 0.37.0
nim 1.nim 4347ms 12ms 519.8MB 2150ms 1773ms nim/clang 2.2.2
nim 1.nim 4379ms 10ms 519.4MB 2190ms 1760ms nim 2.2.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 124ms 1.1ms 7.5MB 373ms 0ms go 1.24.1
nim 2.nim 189ms 2.4ms 1.5MB 177ms 0ms nim 2.2.2
nim 2.nim 237ms 2.8ms 1.8MB 227ms 0ms nim/clang 2.2.2
nim 1.nim 553ms 0.6ms 1.8MB 447ms 90ms nim/clang 2.2.2
nim 1.nim 579ms 2.1ms 1.5MB 477ms 87ms 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 1.24.1
nim 2.nim 21ms 0.0ms 1.5MB 10ms 0ms nim 2.2.2
nim 2.nim 26ms 0.2ms 1.8MB 20ms 0ms nim/clang 2.2.2
nim 1.nim 59ms 1.2ms 1.8MB 40ms 10ms nim/clang 2.2.2
nim 1.nim 61ms 0.5ms 1.5MB 40ms 7ms 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 1.5MB 0ms 0ms nim 2.2.2
nim 1.nim 1.2ms 0.0ms 1.9MB 0ms 0ms nim/clang 2.2.2
go 1.go 1.5ms 0.1ms 3.4MB 0ms 0ms 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 111ms 1.6ms 1.6MB 100ms 0ms nim/clang 2.2.2
nim 2.nim 113ms 2.6ms 1.4MB 103ms 0ms nim 2.2.2
go 3.go 121ms 2.5ms 3.5MB 113ms 0ms go 1.24.1
go 3.go 131ms 2.2ms 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 324ms 1.9ms 1.6MB 313ms 0ms nim/clang 2.2.2
nim 2.nim 326ms 1.9ms 1.6MB 320ms 0ms nim 2.2.2
go 3.go 388ms 13ms 3.5MB 380ms 0ms go 1.24.1
go 3.go 388ms 2.2ms 0.5MB 380ms 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 1.1ms 1.3MB 40ms 0ms nim 2.2.2
nim 2.nim 50ms 0.7ms 1.6MB 40ms 0ms nim/clang 2.2.2
go 3.go 51ms 1.0ms 3.5MB 40ms 0ms go 1.24.1
go 3.go 64ms 1.6ms 0.4MB 57ms 0ms tinygo 0.37.0
nim 1.nim 440ms 2.2ms 1.5MB 430ms 0ms nim/clang 2.2.2
nim 1.nim 481ms 0.8ms 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 388ms 0.9ms 4.7MB 380ms 0ms nim/clang 2.2.2
nim 1.nim 579ms 3.4ms 4.4MB 570ms 0ms nim 2.2.2
go 1.go 3232ms 34ms 7.7MB 3227ms 0ms go 1.24.1
go 1.go 4076ms 6.3ms 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 0.3ms 1.9MB 10ms 0ms nim/clang 2.2.2
nim 1.nim 26ms 0.4ms 1.6MB 20ms 0ms nim 2.2.2
go 1.go 137ms 1.7ms 3.6MB 130ms 0ms go 1.24.1
go 1.go 171ms 1.9ms 0.5MB 163ms 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 534ms 2.9ms 34.6MB 517ms 0ms nim 2.2.2
nim 1.nim 631ms 20ms 34.9MB 613ms 3ms nim/clang 2.2.2
go 1.go 820ms 47ms 63.2MB 797ms 10ms tinygo 0.37.0
go 2.go 1112ms 7.9ms 55.0MB 1093ms 3ms tinygo 0.37.0
go 1-m.go 1461ms 6.1ms 39.0MB 3090ms 37ms go 1.24.1
go 2-m.go 1661ms 2.3ms 42.9MB 3680ms 40ms go 1.24.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 114ms 2.7ms 9.6MB 100ms 0ms nim 2.2.2
nim 1.nim 135ms 3.0ms 9.9MB 123ms 0ms nim/clang 2.2.2
go 1.go 176ms 2.5ms 9.8MB 160ms 0ms tinygo 0.37.0
go 2.go 206ms 2.2ms 17.1MB 190ms 0ms tinygo 0.37.0
go 1-m.go 332ms 4.7ms 12.2MB 677ms 20ms go 1.24.1
go 2-m.go 373ms 2.8ms 13.9MB 787ms 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 319ms 1.2ms 1.8MB 310ms 0ms nim 2.2.2
nim 2.nim 342ms 0.5ms 2.0MB 330ms 0ms nim/clang 2.2.2
go 1.go 349ms 3.0ms 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 34ms 0.6ms 1.8MB 27ms 0ms nim 2.2.2
go 1.go 37ms 0.1ms 3.5MB 30ms 0ms go 1.24.1
nim 2.nim 37ms 1.4ms 2.0MB 30ms 0ms nim/clang 2.2.2
go 1.go 38ms 0.7ms 0.4MB 30ms 0ms tinygo 0.37.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 271ms 8.1ms 41.5MB 257ms 0ms nim 2.2.2
go 1.go 272ms 4.7ms 39.5MB 260ms 0ms tinygo 0.37.0
go 1.go 278ms 0.1ms 71.7MB 267ms 0ms go 1.24.1
nim 1.nim 298ms 2.6ms 41.8MB 287ms 0ms nim/clang 2.2.2
go 2.go 427ms 1.8ms 21.2MB 417ms 0ms tinygo 0.37.0
go 2.go 742ms 2.8ms 21.6MB 727ms 7ms go 1.24.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
nim 1.nim 51ms 0.5ms 11.5MB 40ms 0ms nim 2.2.2
go 1.go 53ms 0.1ms 10.1MB 40ms 0ms tinygo 0.37.0
nim 1.nim 57ms 0.8ms 11.8MB 50ms 0ms nim/clang 2.2.2
go 1.go 57ms 2.1ms 21.6MB 50ms 0ms go 1.24.1
go 2.go 109ms 2.0ms 4.9MB 100ms 0ms tinygo 0.37.0
go 2.go 183ms 1.8ms 6.1MB 170ms 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 1633ms 8.8ms 164.1MB 1603ms 13ms nim/clang 2.2.2
nim 1.nim 1703ms 20ms 163.9MB 1670ms 20ms nim 2.2.2
go 3.go timeout 0.0ms 122.0MB 4987ms 47ms go 1.24.1
go 3.go timeout 0.0ms 136.3MB 4980ms 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 2.3ms 20.9MB 160ms 0ms nim/clang 2.2.2
nim 1.nim 178ms 2.0ms 20.6MB 163ms 0ms nim 2.2.2
go 3.go 1752ms 13ms 19.9MB 1737ms 20ms go 1.24.1
go 3.go 2259ms 19ms 27.6MB 2243ms 0ms tinygo 0.37.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 1911ms 17ms 4.3MB 7403ms 10ms go 1.24.1
nim 1.nim 3590ms 1.4ms 1.6MB 3580ms 0ms nim/clang 2.2.2
nim 1.nim 3596ms 7.0ms 1.9MB 3583ms 0ms nim 2.2.2
go 1.go 3659ms 12ms 5.6MB 3650ms 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 481ms 0.6ms 5.5MB 1843ms 0ms go 1.24.1
nim 1.nim 899ms 0.8ms 1.5MB 890ms 0ms nim/clang 2.2.2
nim 1.nim 901ms 1.6ms 1.3MB 890ms 0ms nim 2.2.2
go 1.go 916ms 4.3ms 3.5MB 910ms 0ms go 1.24.1
go 1.go 1397ms 0.4ms 0.5MB 1387ms 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 0.8ms 5.5MB 450ms 0ms go 1.24.1
nim 1.nim 227ms 0.3ms 1.5MB 220ms 0ms nim/clang 2.2.2
nim 1.nim 229ms 1.2ms 1.3MB 220ms 0ms nim 2.2.2
go 1.go 231ms 1.3ms 3.5MB 220ms 0ms go 1.24.1
go 1.go 352ms 0.6ms 0.4MB 340ms 0ms tinygo 0.37.0