Programming Language and compiler
Benchmarks

OCaml VS Wasm benchmarks

Current benchmark data was generated on Tue Mar 25 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
wasm 5.rs 1828ms 60ms 33.1MB 1810ms 10ms wasmtime 31.0.0
wasm 4.rs 1855ms 21ms 33.1MB 1833ms 10ms wasmtime 31.0.0
wasm 3.rs 1870ms 21ms 49.2MB 1847ms 10ms wasmtime 31.0.0
ocaml 1.ml 3139ms 30ms 157.2MB 3050ms 73ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 5.rs 171ms 2.0ms 19.2MB 160ms 0ms wasmtime 31.0.0
wasm 4.rs 179ms 1.6ms 19.2MB 167ms 0ms wasmtime 31.0.0
wasm 3.rs 187ms 5.5ms 21.1MB 167ms 0ms wasmtime 31.0.0
ocaml 1.ml 228ms 11ms 19.2MB 213ms 0ms ocaml 5.3.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 2918ms 4.8ms 4.9MB 2910ms 0ms ocaml 5.3.0
wasm 1.rs 4291ms 13ms 16.7MB 4277ms 0ms wasmtime 31.0.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 245ms 1.4ms 4.9MB 237ms 0ms ocaml 5.3.0
wasm 1.rs 357ms 0.8ms 16.8MB 343ms 0ms wasmtime 31.0.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 238ms 2.4ms 17.2MB 223ms 3ms wasmtime 31.0.0
ocaml 6.ml 345ms 0.3ms 24.8MB 330ms 0ms ocaml 5.3.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 32ms 0.6ms 17.2MB 20ms 0ms wasmtime 31.0.0
ocaml 6.ml 39ms 0.3ms 7.3MB 30ms 0ms ocaml 5.3.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1.9ms 0.2ms 5.1MB 0ms 0ms ocaml 5.3.0
wasm 1.rs 7.0ms 0.7ms 17.4MB 0ms 0ms wasmtime 31.0.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 89ms 1.7ms 17.3MB 80ms 0ms wasmtime 31.0.0
ocaml 1.ml 178ms 2.2ms 6.4MB 170ms 0ms ocaml 5.3.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 251ms 3.2ms 16.9MB 240ms 0ms wasmtime 31.0.0
ocaml 1.ml 535ms 18ms 6.6MB 523ms 0ms ocaml 5.3.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 48ms 0.2ms 16.8MB 40ms 0ms wasmtime 31.0.0
ocaml 1.ml 77ms 0.5ms 6.1MB 70ms 0ms ocaml 5.3.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 906ms 18ms 41.1MB 880ms 10ms wasmtime 31.0.0
ocaml 1.ml 1104ms 1.1ms 70.3MB 1060ms 30ms ocaml 5.3.0
ocaml 2.ml 2279ms 5.8ms 91.8MB 2220ms 43ms ocaml 5.3.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 149ms 3.1ms 21.6MB 130ms 7ms ocaml 5.3.0
wasm 1.rs 198ms 6.2ms 23.1MB 180ms 0ms wasmtime 31.0.0
ocaml 2.ml 396ms 3.4ms 27.7MB 377ms 7ms ocaml 5.3.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 374ms 0.4ms 5.3MB 367ms 0ms ocaml 5.3.0
wasm 1.rs 411ms 4.6ms 17.1MB 400ms 0ms wasmtime 31.0.0
wasm 2.rs 583ms 2.7ms 17.0MB 570ms 0ms wasmtime 31.0.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 41ms 0.7ms 5.2MB 30ms 0ms ocaml 5.3.0
wasm 1.rs 49ms 0.3ms 17.2MB 37ms 0ms wasmtime 31.0.0
wasm 2.rs 66ms 0.5ms 17.0MB 53ms 0ms wasmtime 31.0.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 400ms 1.6ms 22.0MB 387ms 0ms wasmtime 31.0.0
wasm 1.rs 520ms 6.4ms 56.1MB 507ms 3ms wasmtime 31.0.0
ocaml 1.ml 1019ms 4.4ms 544.4MB 960ms 43ms ocaml 5.3.0
ocaml 2.ml 1896ms 11ms 17.2MB 1883ms 0ms ocaml 5.3.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 1.rs 96ms 1.4ms 27.0MB 80ms 0ms wasmtime 31.0.0
wasm 2.rs 101ms 0.5ms 18.4MB 90ms 0ms wasmtime 31.0.0
ocaml 1.ml 197ms 0.6ms 128.8MB 173ms 10ms ocaml 5.3.0
ocaml 2.ml 469ms 5.3ms 9.1MB 457ms 0ms ocaml 5.3.0

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml timeout 0.0ms 462.7MB 4810ms 173ms ocaml 5.3.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 2.ml 550ms 6.1ms 57.1MB 507ms 27ms ocaml 5.3.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 3604ms 8.1ms 16.9MB 3590ms 0ms wasmtime 31.0.0
ocaml 2.ml 4585ms 15ms 6.4MB 4573ms 0ms ocaml 5.3.0
wasm 7.rs 4908ms 6.3ms 17.4MB 4897ms 0ms wasmtime 31.0.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 907ms 1.1ms 16.7MB 893ms 0ms wasmtime 31.0.0
ocaml 2.ml 1148ms 6.8ms 6.1MB 1140ms 0ms ocaml 5.3.0
wasm 7.rs 1232ms 0.2ms 16.9MB 1220ms 0ms wasmtime 31.0.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
wasm 2.rs 235ms 0.3ms 17.0MB 220ms 0ms wasmtime 31.0.0
ocaml 2.ml 296ms 5.1ms 5.2MB 287ms 0ms ocaml 5.3.0
wasm 7.rs 316ms 1.5ms 16.7MB 300ms 0ms wasmtime 31.0.0