Programming Language and compiler
Benchmarks

All OCaml benchmarks

Current benchmark data was generated on Mon May 19 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

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 3022ms 19ms 157.1MB 2943ms 60ms ocaml 5.3.0

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 219ms 1.7ms 19.1MB 200ms 3ms ocaml 5.3.0

fannkuch-redux

Input: 11

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml 2919ms 5.3ms 4.9MB 2907ms 0ms ocaml 5.3.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml 245ms 3.9ms 4.9MB 233ms 0ms ocaml 5.3.0

fasta

Input: 2500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
6.ml 346ms 1.0ms 24.9MB 333ms 0ms ocaml 5.3.0

Input: 250000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
6.ml 39ms 0.8ms 7.5MB 30ms 0ms ocaml 5.3.0

helloworld

Input: QwQ

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 1.8ms 0.1ms 5.1MB 0ms 0ms ocaml 5.3.0

lru

Input: 1000 1000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 178ms 7.5ms 6.6MB 167ms 0ms ocaml 5.3.0

Input: 1000 3000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 536ms 22ms 6.6MB 527ms 0ms ocaml 5.3.0

Input: 100 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 77ms 1.7ms 5.9MB 70ms 0ms ocaml 5.3.0

merkletrees

Input: 17

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 1089ms 3.3ms 70.2MB 1053ms 20ms ocaml 5.3.0
2.ml 2063ms 7.0ms 91.8MB 2010ms 40ms ocaml 5.3.0

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 147ms 2.5ms 21.7MB 130ms 3ms ocaml 5.3.0
2.ml 366ms 7.2ms 27.6MB 343ms 10ms ocaml 5.3.0

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 379ms 1.8ms 5.2MB 370ms 0ms ocaml 5.3.0

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 41ms 1.5ms 5.3MB 30ms 0ms ocaml 5.3.0

nsieve

Input: 12

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 940ms 9.1ms 541.2MB 883ms 43ms ocaml 5.3.0
2.ml 1904ms 37ms 19.0MB 1893ms 0ms ocaml 5.3.0

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.ml 178ms 1.2ms 142.2MB 157ms 10ms ocaml 5.3.0
2.ml 471ms 3.6ms 9.1MB 460ms 0ms ocaml 5.3.0

regex-redux

Input: 2500000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml timeout 0.0ms 462.8MB 4830ms 157ms ocaml 5.3.0

Input: 250000_in

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml 549ms 15ms 57.1MB 513ms 23ms ocaml 5.3.0

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml 4567ms 9.8ms 6.3MB 4560ms 0ms ocaml 5.3.0

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml 1147ms 4.8ms 6.1MB 1137ms 0ms ocaml 5.3.0

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.ml 295ms 7.0ms 5.2MB 287ms 0ms ocaml 5.3.0