Programming Language and compiler
Benchmarks

OCaml VS Rust benchmarks

Current benchmark data was generated on Sun Dec 01 2024, 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
rust 4.rs 1251ms 6.0ms 33.8MB 1233ms 7ms rustc 1.83.0
rust 5.rs 1378ms 31ms 33.8MB 1357ms 10ms rustc 1.83.0
rust 3.rs 1482ms 30ms 49.8MB 1443ms 23ms rustc 1.83.0
ocaml 1.ml 3047ms 16ms 132.6MB 2977ms 60ms ocaml 5.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5.rs 123ms 0.3ms 5.8MB 110ms 0ms rustc 1.83.0
rust 4.rs 129ms 19ms 5.8MB 120ms 0ms rustc 1.83.0
rust 3.rs 142ms 4.7ms 7.8MB 130ms 0ms rustc 1.83.0
ocaml 1.ml 217ms 3.2ms 19.2MB 200ms 0ms ocaml 5.2.1

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 413ms 6.2ms 4.0MB 1573ms 0ms rustc 1.83.0
rust 5-m.rs 567ms 6.5ms 4.0MB 2143ms 3ms rustc 1.83.0
rust 2-im.rs 629ms 1.2ms 6.0MB 2387ms 0ms rustc 1.83.0
rust 1-m.rs 997ms 11ms 6.0MB 3850ms 0ms rustc 1.83.0
rust 3-i.rs 1489ms 1.2ms 1.9MB 1480ms 0ms rustc 1.83.0
rust 2-i.rs 1754ms 1.4ms 1.8MB 1740ms 0ms rustc 1.83.0
rust 1.rs 2669ms 15ms 1.8MB 2657ms 0ms rustc 1.83.0
ocaml 2.ml 2908ms 3.8ms 4.9MB 2897ms 0ms ocaml 5.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 38ms 0.3ms 4.0MB 117ms 3ms rustc 1.83.0
rust 5-m.rs 56ms 0.8ms 6.0MB 170ms 0ms rustc 1.83.0
rust 2-im.rs 62ms 1.1ms 6.0MB 200ms 0ms rustc 1.83.0
rust 1-m.rs 88ms 1.9ms 6.0MB 307ms 0ms rustc 1.83.0
rust 3-i.rs 124ms 0.4ms 1.9MB 117ms 0ms rustc 1.83.0
rust 2-i.rs 149ms 0.8ms 1.8MB 140ms 0ms rustc 1.83.0
rust 1.rs 223ms 0.6ms 1.8MB 210ms 0ms rustc 1.83.0
ocaml 2.ml 245ms 2.2ms 4.9MB 233ms 0ms ocaml 5.2.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 91ms 2.5ms 4.8MB 240ms 7ms rustc 1.83.0
rust 5-m.rs 98ms 0.2ms 6.5MB 320ms 0ms rustc 1.83.0
rust 1c.rs 162ms 0.1ms 1.9MB 150ms 0ms rustc 1.83.0
rust 1.rs 193ms 1.6ms 1.9MB 180ms 0ms rustc 1.83.0
ocaml 6.ml 347ms 0.9ms 24.9MB 330ms 0ms ocaml 5.2.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 16ms 0.2ms 4.8MB 20ms 3ms rustc 1.83.0
rust 5-m.rs 17ms 0.2ms 4.8MB 30ms 0ms rustc 1.83.0
rust 1c.rs 19ms 0.2ms 1.9MB 10ms 0ms rustc 1.83.0
rust 1.rs 22ms 0.3ms 1.9MB 10ms 0ms rustc 1.83.0
ocaml 6.ml 38ms 0.2ms 7.4MB 27ms 0ms ocaml 5.2.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 1.3ms 0.0ms 1.8MB 0ms 0ms rustc 1.83.0
rust 1.rs 1.3ms 0.0ms 1.8MB 0ms 0ms rustc 1.85.0-nightly
ocaml 1.ml 1.8ms 0.2ms 4.9MB 0ms 0ms ocaml 5.2.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 42ms 1.1ms 1.9MB 30ms 0ms rustc 1.83.0
rust 1.rs 51ms 4.9ms 2.0MB 43ms 0ms rustc 1.83.0
ocaml 1.ml 183ms 10ms 6.4MB 170ms 0ms ocaml 5.2.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 156ms 1.9ms 1.9MB 150ms 0ms rustc 1.83.0
rust 1.rs 197ms 16ms 2.0MB 187ms 0ms rustc 1.83.0
ocaml 1.ml 530ms 20ms 6.6MB 517ms 0ms ocaml 5.2.1

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 26ms 0.5ms 1.9MB 20ms 0ms rustc 1.83.0
rust 1.rs 29ms 0.7ms 1.9MB 20ms 0ms rustc 1.83.0
ocaml 1.ml 78ms 2.4ms 5.9MB 67ms 0ms ocaml 5.2.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 697ms 5.9ms 33.8MB 670ms 13ms rustc 1.83.0
ocaml 1.ml 1072ms 10ms 70.2MB 1030ms 27ms ocaml 5.2.1
ocaml 2.ml 2064ms 47ms 91.7MB 2007ms 43ms ocaml 5.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 150ms 2.7ms 21.6MB 127ms 10ms ocaml 5.2.1
rust 1.rs 150ms 2.8ms 9.8MB 137ms 0ms rustc 1.83.0
ocaml 2.ml 362ms 1.9ms 27.6MB 337ms 7ms ocaml 5.2.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 165ms 3.7ms 1.9MB 153ms 0ms rustc 1.83.0
rust 7-i.rs 236ms 0.8ms 1.8MB 227ms 0ms rustc 1.83.0
rust 1.rs 238ms 0.5ms 1.8MB 230ms 0ms rustc 1.83.0
rust 2.rs 279ms 0.3ms 1.8MB 267ms 0ms rustc 1.83.0
rust 3.rs 280ms 0.4ms 1.9MB 270ms 0ms rustc 1.85.0-nightly
ocaml 1.ml 374ms 0.9ms 5.2MB 363ms 0ms ocaml 5.2.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 19ms 0.4ms 1.8MB 10ms 0ms rustc 1.83.0
rust 1.rs 26ms 0.1ms 1.8MB 17ms 0ms rustc 1.83.0
rust 7-i.rs 26ms 0.2ms 1.8MB 13ms 0ms rustc 1.83.0
rust 2.rs 30ms 0.1ms 1.8MB 20ms 0ms rustc 1.83.0
rust 3.rs 30ms 0.2ms 1.9MB 20ms 0ms rustc 1.85.0-nightly
ocaml 1.ml 42ms 1.3ms 5.2MB 30ms 0ms ocaml 5.2.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 308ms 10.0ms 40.9MB 293ms 0ms rustc 1.83.0
rust 2.rs 317ms 3.1ms 6.6MB 303ms 0ms rustc 1.83.0
ocaml 1.ml 945ms 20ms 551.3MB 877ms 50ms ocaml 5.2.1
ocaml 2.ml 1910ms 4.6ms 18.3MB 1897ms 0ms ocaml 5.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 63ms 4.7ms 11.6MB 50ms 0ms rustc 1.83.0
rust 2.rs 82ms 0.9ms 2.9MB 70ms 0ms rustc 1.83.0
ocaml 1.ml 201ms 5.9ms 142.1MB 173ms 10ms ocaml 5.2.1
ocaml 2.ml 471ms 2.4ms 9.1MB 460ms 0ms ocaml 5.2.1

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 433ms 4.1ms 80.3MB 443ms 10ms rustc 1.83.0
ocaml 2.ml timeout 0.0ms 484.9MB 4780ms 200ms ocaml 5.2.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 51ms 1.4ms 13.3MB 40ms 3ms rustc 1.83.0
ocaml 2.ml 533ms 28ms 57.1MB 490ms 27ms ocaml 5.2.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 498ms 0.9ms 6.5MB 1900ms 7ms rustc 1.85.0-nightly
rust 7-m.rs 498ms 1.8ms 4.2MB 1907ms 10ms rustc 1.83.0
rust 8.rs 1016ms 12ms 2.5MB 1003ms 0ms rustc 1.85.0-nightly
rust 2-m.rs 1952ms 2.2ms 6.2MB 7643ms 0ms rustc 1.83.0
rust 7.rs 2122ms 22ms 1.9MB 2117ms 0ms rustc 1.83.0
rust 2.rs 4203ms 9.7ms 2.0MB 4193ms 0ms rustc 1.83.0
ocaml 2.ml 4487ms 17ms 6.6MB 4477ms 0ms ocaml 5.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 128ms 0.4ms 6.2MB 470ms 3ms rustc 1.85.0-nightly
rust 7-m.rs 129ms 0.5ms 6.1MB 463ms 7ms rustc 1.83.0
rust 8.rs 255ms 1.5ms 2.3MB 243ms 0ms rustc 1.85.0-nightly
rust 2-m.rs 492ms 0.5ms 4.1MB 1890ms 0ms rustc 1.83.0
rust 7.rs 530ms 4.7ms 1.8MB 523ms 0ms rustc 1.83.0
rust 2.rs 1051ms 1.9ms 1.9MB 1040ms 0ms rustc 1.83.0
ocaml 2.ml 1126ms 6.0ms 5.9MB 1117ms 0ms ocaml 5.2.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 36ms 0.2ms 4.1MB 107ms 0ms rustc 1.83.0
rust 8-m.rs 36ms 0.5ms 4.1MB 117ms 0ms rustc 1.85.0-nightly
rust 8.rs 66ms 0.3ms 2.0MB 57ms 0ms rustc 1.85.0-nightly
rust 2-m.rs 127ms 0.6ms 4.1MB 457ms 7ms rustc 1.83.0
rust 7.rs 135ms 2.0ms 1.8MB 127ms 0ms rustc 1.83.0
rust 2.rs 266ms 1.0ms 1.9MB 253ms 0ms rustc 1.83.0
ocaml 2.ml 284ms 2.2ms 5.2MB 270ms 0ms ocaml 5.2.1