Programming Language and compiler
Benchmarks

OCaml VS Go benchmarks

Current benchmark data was generated on Sun Jul 13 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
go 1.go 1743ms 3.1ms 51.9MB 1723ms 10ms tinygo 0.38.0
go 1-m.go 2344ms 26ms 41.8MB 5190ms 40ms go 1.24.5
ocaml 1.ml 3087ms 52ms 157.2MB 3003ms 70ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 148ms 3.7ms 5.0MB 140ms 0ms tinygo 0.38.0
go 1-m.go 208ms 2.6ms 8.0MB 370ms 7ms go 1.24.5
ocaml 1.ml 221ms 1.6ms 19.1MB 207ms 0ms ocaml 5.3.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 722ms 3.3ms 3.0MB 2663ms 43ms tinygo 0.38.0
go 3-m.go 725ms 0.6ms 5.6MB 2807ms 0ms go 1.24.5
ocaml 2.ml 2909ms 4.1ms 4.9MB 2903ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 76ms 0.2ms 3.5MB 210ms 0ms go 1.24.5
go 3-m.go 102ms 3.6ms 3.0MB 187ms 37ms tinygo 0.38.0
ocaml 2.ml 245ms 0.8ms 5.2MB 237ms 0ms ocaml 5.3.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 118ms 0.9ms 5.5MB 380ms 0ms go 1.24.5
ocaml 6.ml 346ms 1.9ms 24.8MB 330ms 0ms ocaml 5.3.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3-m.go 18ms 1.5ms 6.5MB 30ms 0ms go 1.24.5
ocaml 6.ml 39ms 0.7ms 7.4MB 30ms 0ms ocaml 5.3.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 0.6ms 0.1ms 0.3MB 0ms 0ms tinygo 0.38.0
go 1.go 1.4ms 0.1ms 3.4MB 0ms 0ms go 1.24.5
ocaml 1.ml 1.8ms 0.1ms 5.0MB 0ms 0ms ocaml 5.3.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go 121ms 2.2ms 3.5MB 113ms 0ms go 1.24.5
go 3.go 133ms 1.4ms 0.4MB 127ms 0ms tinygo 0.38.0
ocaml 1.ml 173ms 2.7ms 6.4MB 163ms 0ms ocaml 5.3.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go 390ms 2.9ms 0.4MB 380ms 0ms tinygo 0.38.0
go 3.go 390ms 2.1ms 3.5MB 380ms 0ms go 1.24.5
ocaml 1.ml 532ms 18ms 6.6MB 520ms 0ms ocaml 5.3.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go 50ms 0.9ms 3.5MB 40ms 0ms go 1.24.5
go 3.go 65ms 2.1ms 0.3MB 60ms 0ms tinygo 0.38.0
ocaml 1.ml 78ms 0.4ms 6.2MB 70ms 0ms ocaml 5.3.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 1031ms 11ms 35.5MB 1010ms 7ms tinygo 0.38.0
ocaml 1.ml 1077ms 22ms 70.2MB 1037ms 27ms ocaml 5.3.0
go 2.go 1380ms 20ms 51.9MB 1357ms 7ms tinygo 0.38.0
go 1-m.go 1434ms 9.9ms 41.0MB 3033ms 40ms go 1.24.5
go 2-m.go 1649ms 21ms 51.2MB 3610ms 33ms go 1.24.5
ocaml 2.ml 2068ms 35ms 91.8MB 2017ms 37ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 144ms 1.4ms 21.7MB 127ms 3ms ocaml 5.3.0
go 1.go 207ms 3.3ms 11.6MB 190ms 0ms tinygo 0.38.0
go 2.go 259ms 3.2ms 15.4MB 243ms 0ms tinygo 0.38.0
go 1-m.go 325ms 2.6ms 12.2MB 653ms 23ms go 1.24.5
ocaml 2.ml 359ms 6.4ms 27.7MB 340ms 7ms ocaml 5.3.0
go 2-m.go 368ms 1.3ms 14.3MB 783ms 17ms go 1.24.5

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 347ms 2.9ms 0.3MB 340ms 0ms tinygo 0.38.0
go 1.go 351ms 2.5ms 3.5MB 343ms 0ms go 1.24.5
ocaml 1.ml 374ms 2.6ms 5.2MB 367ms 0ms ocaml 5.3.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 37ms 1.7ms 0.3MB 30ms 0ms tinygo 0.38.0
go 1.go 38ms 1.3ms 3.5MB 30ms 0ms go 1.24.5
ocaml 1.ml 40ms 0.1ms 5.2MB 30ms 0ms ocaml 5.3.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 313ms 5.6ms 39.4MB 297ms 0ms tinygo 0.38.0
go 1.go 315ms 7.2ms 71.7MB 303ms 0ms go 1.24.5
go 2.go 470ms 3.6ms 20.0MB 457ms 0ms tinygo 0.38.0
go 2.go 784ms 5.0ms 21.8MB 773ms 7ms go 1.24.5
ocaml 1.ml 945ms 11ms 547.9MB 883ms 47ms ocaml 5.3.0
ocaml 2.ml 1884ms 7.1ms 17.2MB 1870ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 1.go 63ms 3.8ms 21.6MB 53ms 0ms go 1.24.5
go 1.go 71ms 6.1ms 10.0MB 60ms 0ms tinygo 0.38.0
go 2.go 118ms 3.3ms 4.1MB 110ms 0ms tinygo 0.38.0
ocaml 1.ml 178ms 0.8ms 142.3MB 153ms 10ms ocaml 5.3.0
go 2.go 194ms 1.7ms 6.1MB 187ms 0ms go 1.24.5
ocaml 2.ml 464ms 1.5ms 9.3MB 453ms 0ms ocaml 5.3.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 3.go timeout 0.0ms 124.3MB 4987ms 43ms go 1.24.5
go 3.go timeout 0.0ms 85.0MB 4973ms 13ms tinygo 0.38.0
ocaml 2.ml timeout 0.0ms 462.9MB 4830ms 157ms ocaml 5.3.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 542ms 2.0ms 57.1MB 510ms 17ms ocaml 5.3.0
go 3.go 1778ms 8.4ms 20.0MB 1760ms 23ms go 1.24.5
go 3.go 2263ms 4.0ms 23.2MB 2243ms 3ms tinygo 0.38.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 1905ms 8.6ms 5.5MB 7413ms 7ms go 1.24.5
go 1.go 3702ms 11ms 5.6MB 3693ms 0ms go 1.24.5
ocaml 2.ml 4558ms 6.5ms 6.3MB 4543ms 0ms ocaml 5.3.0
go 1.go timeout 0.0ms 0.5MB 4990ms 0ms tinygo 0.38.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 482ms 3.4ms 5.5MB 1833ms 0ms go 1.24.5
go 1.go 915ms 1.8ms 3.5MB 907ms 0ms go 1.24.5
ocaml 2.ml 1146ms 5.3ms 6.1MB 1137ms 0ms ocaml 5.3.0
go 1.go 1397ms 0.6ms 0.4MB 1390ms 0ms tinygo 0.38.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
go 4-m.go 125ms 0.9ms 5.5MB 450ms 0ms go 1.24.5
go 1.go 237ms 2.0ms 3.5MB 230ms 0ms go 1.24.5
ocaml 2.ml 296ms 9.1ms 5.2MB 287ms 0ms ocaml 5.3.0
go 1.go 351ms 0.4ms 0.4MB 340ms 0ms tinygo 0.38.0