C++ VS OCaml benchmarks

Current benchmark data was generated on Mon Oct 03 2022, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][2 cores] Intel(R) Xeon(R) Platinum 8370C CPU @ 2.80GHz (Model 106)

* -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.)

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 753ms 4.3ms 1.0MB 1460ms 0ms g++ 12.2.0
cpp 1-im.cpp 772ms 3.1ms 3.5MB 1500ms 0ms clang++ 11.0.0
ocaml 2.ml 3944ms 24ms 2.4MB 3930ms 0ms ocaml 4.14.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1-im.cpp 72ms 1.9ms 1.0MB 120ms 0ms g++ 12.2.0
cpp 1-im.cpp 74ms 3.1ms 3.5MB 123ms 0ms clang++ 11.0.0
ocaml 2.ml 326ms 0.9ms 2.5MB 320ms 0ms ocaml 4.14.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 2.3ms 0.7ms 2.5MB 0ms 0ms ocaml 4.14.0
cpp 1.cpp 2.4ms 0.6ms 1.1MB 0ms 0ms clang++ 11.0.0
cpp 1.cpp 3.1ms 2.0ms 1.0MB 0ms 0ms g++ 12.2.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 226ms 1.0ms 0.9MB 220ms 0ms g++ 12.2.0
cpp 0-i.cpp 258ms 1.2ms 1.1MB 247ms 0ms clang++ 11.0.0
cpp 1.cpp 339ms 0.7ms 1.0MB 330ms 0ms g++ 12.2.0
cpp 1.cpp 384ms 0.4ms 1.1MB 370ms 0ms clang++ 11.0.0
ocaml 1.ml 470ms 0.5ms 2.5MB 460ms 0ms ocaml 4.14.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 0-i.cpp 26ms 1.3ms 1.0MB 13ms 0ms g++ 12.2.0
cpp 0-i.cpp 29ms 0.6ms 1.1MB 20ms 0ms clang++ 11.0.0
cpp 1.cpp 37ms 0.7ms 1.0MB 30ms 0ms g++ 12.2.0
cpp 1.cpp 41ms 0.2ms 1.1MB 30ms 0ms clang++ 11.0.0
ocaml 1.ml 51ms 0.8ms 2.4MB 40ms 0ms ocaml 4.14.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 419ms 3.4ms 7.5MB 407ms 0ms clang++ 11.0.0
cpp 1.cpp 644ms 2.2ms 7.7MB 630ms 0ms g++ 12.2.0
ocaml 1.ml 1988ms 8.5ms 556.0MB 1893ms 77ms ocaml 4.14.0
ocaml 2.ml 2288ms 25ms 20.2MB 2277ms 0ms ocaml 4.14.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 1.cpp 94ms 0.3ms 3.7MB 80ms 0ms clang++ 11.0.0
cpp 1.cpp 153ms 0.3ms 4.0MB 143ms 0ms g++ 12.2.0
ocaml 1.ml 374ms 18ms 142.4MB 340ms 17ms ocaml 4.14.0
ocaml 2.ml 549ms 1.2ms 9.7MB 540ms 0ms ocaml 4.14.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 1061ms 1.3ms 3.1MB 2073ms 0ms clang++ 11.0.0
cpp 7-m.cpp 1061ms 3.4ms 3.2MB 2073ms 3ms clang++ 11.0.0
cpp 7-m.cpp 1062ms 2.6ms 0.9MB 2083ms 0ms g++ 12.2.0
cpp 8-m.cpp 1063ms 0.8ms 0.9MB 2077ms 0ms g++ 12.2.0
cpp 6-im.cpp 2243ms 24ms 3.2MB 4400ms 0ms clang++ 11.0.0
cpp 6-im.cpp 2243ms 21ms 1.0MB 4400ms 0ms g++ 12.2.0
ocaml 2.ml timeout 0.0ms 0.0MB 0ms 0ms ocaml 4.14.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 276ms 1.4ms 3.2MB 517ms 0ms clang++ 11.0.0
cpp 7-m.cpp 279ms 4.6ms 0.9MB 523ms 0ms g++ 12.2.0
cpp 8-m.cpp 279ms 3.6ms 0.9MB 520ms 0ms g++ 12.2.0
cpp 7-m.cpp 279ms 5.3ms 3.2MB 520ms 0ms clang++ 11.0.0
cpp 6-im.cpp 567ms 1.3ms 1.0MB 1100ms 0ms g++ 12.2.0
cpp 6-im.cpp 568ms 1.5ms 3.2MB 1097ms 0ms clang++ 11.0.0
ocaml 2.ml 1647ms 1.1ms 3.2MB 1640ms 0ms ocaml 4.14.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
cpp 8-m.cpp 76ms 1.1ms 3.2MB 130ms 0ms clang++ 11.0.0
cpp 7-m.cpp 76ms 0.8ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 7-m.cpp 76ms 2.1ms 3.2MB 130ms 0ms clang++ 11.0.0
cpp 8-m.cpp 77ms 1.9ms 1.0MB 130ms 0ms g++ 12.2.0
cpp 6-im.cpp 150ms 0.2ms 3.2MB 277ms 0ms clang++ 11.0.0
cpp 6-im.cpp 151ms 1.4ms 1.0MB 280ms 0ms g++ 12.2.0
ocaml 2.ml 415ms 1.0ms 3.1MB 400ms 0ms ocaml 4.14.0