Ocaml VS Rust benchmarks

Current benchmark data was generated on Fri May 20 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.)

binarytrees

Input: 18

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 1792ms 160ms 33.7MB 1770ms 7ms rustc 1.61.0
rust 3.rs 1864ms 18ms 49.8MB 1833ms 17ms rustc 1.61.0
rust 5.rs 2061ms 144ms 33.9MB 2040ms 3ms rustc 1.61.0
ocaml 1.ml 4057ms 12ms 120.4MB 4020ms 17ms ocaml 4.14.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4.rs 155ms 13ms 5.8MB 140ms 0ms rustc 1.61.0
rust 5.rs 171ms 15ms 5.9MB 157ms 0ms rustc 1.61.0
rust 3.rs 182ms 1.8ms 7.8MB 170ms 0ms rustc 1.61.0
ocaml 1.ml 272ms 1.5ms 17.4MB 257ms 3ms ocaml 4.14.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 726ms 2.1ms 0.7MB 1407ms 0ms rustc 1.61.0
rust 2-im.rs 1043ms 7.2ms 0.6MB 2010ms 0ms rustc 1.61.0
rust 5-m.rs 1222ms 14ms 0.7MB 2350ms 0ms rustc 1.61.0
rust 3-i.rs 1429ms 4.8ms 0.6MB 1417ms 0ms rustc 1.61.0
rust 2-i.rs 1865ms 8.9ms 0.6MB 1857ms 0ms rustc 1.61.0
rust 1-m.rs 2009ms 8.0ms 0.7MB 3873ms 0ms rustc 1.61.0
rust 1.rs 3709ms 24ms 0.6MB 3697ms 0ms rustc 1.61.0
ocaml 2.ml 4187ms 38ms 2.4MB 4173ms 0ms ocaml 4.14.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 3-im.rs 67ms 0.7ms 0.7MB 110ms 0ms rustc 1.61.0
rust 2-im.rs 94ms 1.9ms 0.7MB 160ms 0ms rustc 1.61.0
rust 5-m.rs 112ms 0.6ms 0.7MB 190ms 0ms rustc 1.61.0
rust 3-i.rs 121ms 1.5ms 0.6MB 110ms 0ms rustc 1.61.0
rust 2-i.rs 156ms 1.3ms 0.6MB 147ms 0ms rustc 1.61.0
rust 1-m.rs 178ms 3.1ms 0.7MB 317ms 0ms rustc 1.61.0
rust 1.rs 326ms 12ms 0.6MB 317ms 0ms rustc 1.61.0
ocaml 2.ml 340ms 2.1ms 2.6MB 330ms 0ms ocaml 4.14.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 5c-m.rs 180ms 3.2ms 1.3MB 313ms 3ms rustc 1.63.0
rust 5-m.rs 206ms 1.1ms 1.3MB 370ms 0ms rustc 1.61.0
rust 1c.rs 234ms 0.2ms 0.7MB 227ms 0ms rustc 1.63.0
rust 1.rs 315ms 0.7ms 0.6MB 307ms 0ms rustc 1.61.0
ocaml 6.ml 425ms 0.9ms 25.4MB 407ms 0ms ocaml 4.14.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1c.rs 28ms 2.3ms 0.7MB 20ms 0ms rustc 1.63.0
rust 5c-m.rs 29ms 2.8ms 1.3MB 33ms 0ms rustc 1.63.0
rust 5-m.rs 29ms 1.4ms 1.3MB 33ms 0ms rustc 1.61.0
rust 1.rs 35ms 1.1ms 2.1MB 23ms 0ms rustc 1.61.0
ocaml 6.ml 47ms 1.2ms 4.8MB 40ms 0ms ocaml 4.14.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 2.1ms 1.0ms 0.6MB 0ms 0ms rustc 1.63.0
ocaml 1.ml 2.3ms 0.7ms 2.6MB 0ms 0ms ocaml 4.14.0
rust 1.rs 6.1ms 9.2ms 0.6MB 0ms 0ms rustc 1.61.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 53ms 6.9ms 0.6MB 43ms 0ms rustc 1.61.0
rust 1.rs 80ms 1.6ms 2.1MB 70ms 0ms rustc 1.61.0
ocaml 1.ml 240ms 1.1ms 5.9MB 227ms 0ms ocaml 4.14.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 208ms 2.4ms 0.6MB 200ms 0ms rustc 1.61.0
rust 1.rs 301ms 19ms 2.0MB 290ms 0ms rustc 1.61.0
ocaml 1.ml 708ms 1.7ms 5.8MB 697ms 0ms ocaml 4.14.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 0-unsafe.rs 36ms 2.1ms 0.6MB 23ms 0ms rustc 1.61.0
rust 1.rs 46ms 1.2ms 0.7MB 40ms 0ms rustc 1.61.0
ocaml 1.ml 104ms 0.3ms 5.0MB 97ms 0ms ocaml 4.14.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 927ms 16ms 33.8MB 903ms 7ms rustc 1.61.0
ocaml 1.ml 1528ms 2.4ms 62.6MB 1497ms 17ms ocaml 4.14.0
ocaml 2.ml 2609ms 9.0ms 71.1MB 2577ms 17ms ocaml 4.14.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 1.rs 192ms 2.1ms 9.8MB 180ms 0ms rustc 1.61.0
ocaml 1.ml 195ms 0.7ms 18.7MB 183ms 3ms ocaml 4.14.0
ocaml 2.ml 437ms 1.6ms 23.6MB 423ms 0ms ocaml 4.14.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 253ms 0.8ms 0.6MB 240ms 0ms rustc 1.61.0
rust 7-i.rs 305ms 0.2ms 0.6MB 290ms 0ms rustc 1.61.0
rust 3.rs 319ms 0.2ms 0.6MB 310ms 0ms rustc 1.63.0
rust 2.rs 347ms 9.0ms 0.6MB 337ms 0ms rustc 1.61.0
rust 1.rs 390ms 11ms 0.6MB 377ms 0ms rustc 1.61.0
ocaml 1.ml 469ms 0.1ms 2.5MB 460ms 0ms ocaml 4.14.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 4-i.rs 29ms 1.4ms 0.6MB 20ms 0ms rustc 1.61.0
rust 7-i.rs 33ms 1.1ms 0.6MB 23ms 0ms rustc 1.61.0
rust 3.rs 35ms 1.8ms 0.6MB 30ms 0ms rustc 1.63.0
rust 1.rs 42ms 1.4ms 0.6MB 30ms 0ms rustc 1.61.0
ocaml 1.ml 49ms 0.2ms 2.5MB 40ms 0ms ocaml 4.14.0
rust 2.rs 50ms 12ms 0.6MB 40ms 0ms rustc 1.61.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 465ms 0.8ms 6.5MB 450ms 0ms rustc 1.61.0
rust 1.rs 898ms 26ms 41.0MB 870ms 10ms rustc 1.61.0
ocaml 1.ml 2063ms 42ms 554.8MB 1947ms 97ms ocaml 4.14.0
ocaml 2.ml 2282ms 3.9ms 19.6MB 2267ms 0ms ocaml 4.14.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 2.rs 108ms 1.9ms 3.1MB 100ms 0ms rustc 1.61.0
rust 1.rs 131ms 1.0ms 11.7MB 117ms 0ms rustc 1.61.0
ocaml 1.ml 406ms 11ms 142.8MB 370ms 20ms ocaml 4.14.0
ocaml 2.ml 551ms 1.5ms 9.6MB 540ms 0ms ocaml 4.14.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 564ms 4.9ms 77.1MB 713ms 20ms rustc 1.61.0
ocaml 2.ml timeout 0.0ms 0.0MB 0ms 0ms ocaml 4.14.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7.rs 66ms 3.2ms 11.9MB 73ms 0ms rustc 1.61.0
ocaml 2.ml 689ms 1.6ms 50.6MB 657ms 17ms ocaml 4.14.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 1065ms 1.3ms 2.2MB 2063ms 0ms rustc 1.61.0
rust 8-m.rs 1067ms 3.9ms 2.3MB 2060ms 3ms rustc 1.63.0
rust 8.rs 2062ms 1.0ms 2.5MB 2050ms 0ms rustc 1.63.0
rust 7.rs 2063ms 0.4ms 2.1MB 2050ms 0ms rustc 1.61.0
rust 2-m.rs 2152ms 7.6ms 2.2MB 4170ms 3ms rustc 1.61.0
ocaml 2.ml timeout 0.0ms 0.0MB 0ms 0ms ocaml 4.14.0
rust 2.rs timeout 0.0ms 0.0MB 0ms 0ms rustc 1.61.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 7-m.rs 275ms 1.2ms 0.7MB 510ms 0ms rustc 1.61.0
rust 8-m.rs 275ms 1.1ms 2.2MB 507ms 0ms rustc 1.63.0
rust 8.rs 518ms 0.3ms 2.2MB 510ms 0ms rustc 1.63.0
rust 7.rs 518ms 0.9ms 0.6MB 510ms 0ms rustc 1.61.0
rust 2-m.rs 543ms 1.0ms 2.1MB 1033ms 0ms rustc 1.61.0
ocaml 2.ml 1650ms 2.9ms 3.4MB 1637ms 0ms ocaml 4.14.0
rust 2.rs 1704ms 0.1ms 0.6MB 1690ms 0ms rustc 1.61.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
rust 8-m.rs 76ms 0.9ms 2.2MB 127ms 0ms rustc 1.63.0
rust 7-m.rs 76ms 1.2ms 0.7MB 127ms 0ms rustc 1.61.0
rust 8.rs 132ms 1.4ms 2.1MB 120ms 0ms rustc 1.63.0
rust 7.rs 133ms 1.1ms 0.6MB 120ms 0ms rustc 1.61.0
rust 2-m.rs 144ms 0.6ms 0.7MB 257ms 0ms rustc 1.61.0
ocaml 2.ml 415ms 0.7ms 3.0MB 403ms 0ms ocaml 4.14.0
rust 2.rs 429ms 1.3ms 0.6MB 417ms 0ms rustc 1.61.0