Programming Language and compiler
Benchmarks

Crystal VS OCaml benchmarks

Current benchmark data was generated on Tue Dec 31 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
crystal 1.cr 1267ms 4.6ms 64.3MB 1247ms 7ms crystal 1.14.0
ocaml 1.ml 2855ms 30ms 132.4MB 2783ms 53ms ocaml 5.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 102ms 0.9ms 11.1MB 90ms 0ms crystal 1.14.0
ocaml 1.ml 205ms 3.3ms 19.1MB 187ms 0ms ocaml 5.2.1

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1297ms 25ms 20.1MB 1213ms 63ms crystal 1.14.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 69ms 2.7ms 7.5MB 47ms 10ms crystal 1.14.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 58ms 2.4ms 6.6MB 37ms 7ms crystal 1.14.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 21ms 0.3ms 5.4MB 10ms 0ms crystal 1.14.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2357ms 18ms 3.0MB 2343ms 0ms crystal 1.14.0
ocaml 2.ml 2795ms 29ms 4.9MB 2783ms 0ms ocaml 5.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 195ms 0.7ms 3.0MB 190ms 0ms crystal 1.14.0
ocaml 2.ml 234ms 2.1ms 4.9MB 223ms 0ms ocaml 5.2.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 329ms 3.1ms 24.9MB 313ms 0ms ocaml 5.2.1
crystal 2.cr 515ms 7.3ms 3.4MB 413ms 90ms crystal 1.14.0
crystal 1.cr 693ms 6.0ms 14.7MB 553ms 127ms crystal 1.14.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 6.ml 37ms 0.4ms 7.4MB 27ms 0ms ocaml 5.2.1
crystal 2.cr 55ms 0.3ms 3.4MB 33ms 10ms crystal 1.14.0
crystal 1.cr 72ms 1.1ms 4.5MB 50ms 10ms crystal 1.14.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 1.7ms 0.2ms 4.9MB 0ms 0ms ocaml 5.2.1
crystal 1.cr 2.0ms 0.1ms 3.0MB 0ms 0ms crystal 1.14.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2050ms 398ms 189.3MB 260ms 487ms crystal 1.14.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1162ms 112ms 53.7MB 40ms 63ms crystal 1.14.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 35ms 1.9ms 3.1MB 23ms 0ms crystal 1.14.0
crystal 1.cr 62ms 2.8ms 3.1MB 50ms 0ms crystal 1.14.0
ocaml 1.ml 165ms 2.2ms 6.4MB 157ms 0ms ocaml 5.2.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 94ms 2.9ms 3.1MB 83ms 0ms crystal 1.14.0
crystal 1.cr 173ms 1.9ms 3.1MB 163ms 0ms crystal 1.14.0
ocaml 1.ml 496ms 9.3ms 6.6MB 483ms 0ms ocaml 5.2.1

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 17ms 0.4ms 3.0MB 10ms 0ms crystal 1.14.0
crystal 1.cr 28ms 0.6ms 3.0MB 20ms 0ms crystal 1.14.0
ocaml 1.ml 73ms 2.1ms 5.9MB 60ms 0ms ocaml 5.2.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 300ms 7.0ms 9.2MB 287ms 0ms crystal 1.14.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 16ms 0.1ms 6.3MB 10ms 0ms crystal 1.14.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 756ms 9.3ms 81.6MB 727ms 13ms crystal 1.14.0
ocaml 1.ml 1039ms 0.6ms 70.2MB 997ms 27ms ocaml 5.2.1
ocaml 2.ml 1948ms 8.6ms 91.8MB 1900ms 30ms ocaml 5.2.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ocaml 1.ml 143ms 1.0ms 21.7MB 130ms 3ms ocaml 5.2.1
crystal 1.cr 149ms 3.4ms 22.3MB 133ms 0ms crystal 1.14.0
ocaml 2.ml 342ms 3.9ms 27.7MB 317ms 7ms ocaml 5.2.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 327ms 5.3ms 3.4MB 313ms 0ms crystal 1.14.0
crystal 2.cr 327ms 8.1ms 3.4MB 313ms 0ms crystal 1.14.0
ocaml 1.ml 351ms 2.4ms 5.2MB 340ms 0ms ocaml 5.2.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 36ms 0.6ms 3.4MB 23ms 0ms crystal 1.14.0
crystal 1.cr 36ms 0.8ms 3.4MB 30ms 0ms crystal 1.14.0
ocaml 1.ml 40ms 1.6ms 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
crystal 2.cr 327ms 5.2ms 8.4MB 313ms 0ms crystal 1.14.0
crystal 1.cr 348ms 6.2ms 43.1MB 337ms 0ms crystal 1.14.0
ocaml 1.ml 887ms 4.5ms 550.8MB 827ms 43ms ocaml 5.2.1
ocaml 2.ml 1822ms 17ms 18.6MB 1810ms 0ms ocaml 5.2.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 74ms 2.1ms 13.3MB 60ms 0ms crystal 1.14.0
crystal 2.cr 82ms 1.0ms 4.6MB 70ms 0ms crystal 1.14.0
ocaml 1.ml 171ms 3.0ms 142.3MB 147ms 10ms ocaml 5.2.1
ocaml 2.ml 451ms 8.0ms 9.1MB 437ms 0ms ocaml 5.2.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1879ms 34ms 6.5MB 1837ms 23ms crystal 1.14.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 415ms 2.5ms 5.4MB 403ms 0ms crystal 1.14.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3700ms 16ms 4.6MB 3683ms 3ms crystal 1.14.0
ocaml 2.ml 4270ms 34ms 6.3MB 4260ms 0ms ocaml 5.2.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 933ms 19ms 4.5MB 923ms 0ms crystal 1.14.0
ocaml 2.ml 1068ms 1.5ms 5.9MB 1057ms 0ms ocaml 5.2.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 237ms 1.8ms 4.0MB 223ms 0ms crystal 1.14.0
ocaml 2.ml 269ms 1.8ms 5.2MB 257ms 0ms ocaml 5.2.1