Programming Language and compiler
Benchmarks

Crystal VS Dart benchmarks

Current benchmark data was generated on Wed Jan 22 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
dart 1.dart 711ms 2.7ms 80.8MB 680ms 37ms dart/exe 3.6.1
crystal 1.cr 1316ms 80ms 64.1MB 1290ms 10ms crystal 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 77ms 1.0ms 42.6MB 57ms 10ms dart/exe 3.6.1
crystal 1.cr 110ms 9.3ms 10.9MB 100ms 0ms crystal 1.15.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1367ms 11ms 19.8MB 1300ms 50ms crystal 1.15.0
dart 1.dart 4961ms 26ms 19.3MB 5503ms 70ms dart/exe 3.6.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 76ms 1.4ms 7.1MB 57ms 7ms crystal 1.15.0
dart 1.dart 340ms 2.5ms 10.3MB 333ms 17ms dart/exe 3.6.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 62ms 1.9ms 6.4MB 43ms 3ms crystal 1.15.0
dart 1.dart 3581ms 55ms 17.9MB 3550ms 27ms dart/exe 3.6.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 23ms 1.6ms 5.1MB 10ms 0ms crystal 1.15.0
dart 1.dart 583ms 5.2ms 10.0MB 560ms 17ms dart/exe 3.6.1

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2495ms 6.5ms 2.8MB 2483ms 0ms crystal 1.15.0
dart 2.dart 2739ms 8.1ms 6.3MB 2727ms 0ms dart/exe 3.6.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 205ms 1.5ms 2.8MB 193ms 0ms crystal 1.15.0
dart 2.dart 225ms 2.6ms 6.1MB 213ms 0ms dart/exe 3.6.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 364ms 1.8ms 8.6MB 353ms 0ms dart/exe 3.6.1
crystal 2.cr 573ms 3.5ms 3.5MB 450ms 107ms crystal 1.15.0
crystal 1.cr 720ms 0.6ms 14.6MB 573ms 127ms crystal 1.15.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 43ms 0.9ms 8.8MB 30ms 0ms dart/exe 3.6.1
crystal 2.cr 61ms 1.2ms 3.5MB 43ms 7ms crystal 1.15.0
crystal 1.cr 76ms 0.8ms 4.9MB 53ms 7ms crystal 1.15.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1.9ms 0.2ms 2.9MB 0ms 0ms crystal 1.15.0
dart 1.dart 4.3ms 0.3ms 6.3MB 0ms 0ms dart/exe 3.6.1

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2-m.dart 1468ms 34ms 115.6MB 1183ms 1557ms dart/exe 3.6.1
crystal 1.cr 2547ms 222ms 197.7MB 403ms 490ms crystal 1.15.0
dart 1.dart 3990ms 509ms 113.2MB 1213ms 1557ms dart/exe 3.6.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2-m.dart 305ms 11ms 50.0MB 197ms 273ms dart/exe 3.6.1
crystal 1.cr 1102ms 0.9ms 36.6MB 47ms 77ms crystal 1.15.0
dart 1.dart 1800ms 415ms 50.1MB 153ms 253ms dart/exe 3.6.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 37ms 1.0ms 2.9MB 23ms 0ms crystal 1.15.0
crystal 1.cr 65ms 1.7ms 3.0MB 57ms 0ms crystal 1.15.0
dart 2.dart 159ms 0.7ms 9.3MB 147ms 0ms dart/exe 3.6.1
dart 1.dart 509ms 2.3ms 9.1MB 500ms 0ms dart/exe 3.6.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 101ms 1.0ms 2.9MB 90ms 0ms crystal 1.15.0
crystal 1.cr 184ms 2.6ms 2.9MB 170ms 0ms crystal 1.15.0
dart 2.dart 465ms 1.4ms 9.3MB 450ms 3ms dart/exe 3.6.1
dart 1.dart 1525ms 16ms 9.1MB 1513ms 3ms dart/exe 3.6.1

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 18ms 0.6ms 2.9MB 10ms 0ms crystal 1.15.0
crystal 1.cr 30ms 1.5ms 2.9MB 20ms 0ms crystal 1.15.0
dart 2.dart 76ms 2.4ms 9.1MB 63ms 3ms dart/exe 3.6.1
dart 1.dart 115ms 1.6ms 9.0MB 110ms 0ms dart/exe 3.6.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 314ms 3.9ms 9.2MB 303ms 0ms crystal 1.15.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 18ms 0.3ms 5.8MB 10ms 0ms crystal 1.15.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 329ms 1.4ms 63.6MB 310ms 20ms dart/exe 3.6.1
crystal 1.cr 860ms 29ms 64.1MB 830ms 10ms crystal 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 86ms 1.3ms 43.6MB 60ms 20ms dart/exe 3.6.1
crystal 1.cr 178ms 4.4ms 22.0MB 160ms 3ms crystal 1.15.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 342ms 2.4ms 3.3MB 330ms 0ms crystal 1.15.0
crystal 2.cr 342ms 1.6ms 3.3MB 330ms 0ms crystal 1.15.0
dart 3.dart 405ms 2.3ms 6.3MB 390ms 0ms dart/exe 3.6.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 37ms 0.7ms 3.3MB 23ms 0ms crystal 1.15.0
crystal 1.cr 38ms 1.4ms 3.3MB 30ms 0ms crystal 1.15.0
dart 3.dart 47ms 0.2ms 6.3MB 33ms 0ms dart/exe 3.6.1

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 299ms 3.7ms 8.2MB 287ms 0ms crystal 1.15.0
crystal 1.cr 419ms 1.3ms 42.8MB 403ms 0ms crystal 1.15.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 75ms 1.4ms 4.4MB 67ms 0ms crystal 1.15.0
crystal 1.cr 89ms 2.6ms 13.0MB 77ms 0ms crystal 1.15.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 1243ms 11ms 14.6MB 1200ms 47ms dart/exe 3.6.1
crystal 1.cr 1907ms 10ms 6.2MB 1877ms 13ms crystal 1.15.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 2.dart 314ms 4.3ms 14.6MB 290ms 13ms dart/exe 3.6.1
crystal 1.cr 449ms 18ms 5.1MB 430ms 0ms crystal 1.15.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 3754ms 33ms 6.3MB 3743ms 0ms dart/exe 3.6.1
crystal 1.cr 3801ms 27ms 4.4MB 3787ms 0ms crystal 1.15.0
dart 2.dart 4364ms 3.7ms 6.3MB 4350ms 0ms dart/exe 3.6.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 938ms 3.2ms 6.3MB 923ms 0ms dart/exe 3.6.1
crystal 1.cr 955ms 2.5ms 4.3MB 943ms 0ms crystal 1.15.0
dart 2.dart 1099ms 5.6ms 6.4MB 1093ms 0ms dart/exe 3.6.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
dart 1.dart 241ms 2.9ms 6.5MB 233ms 0ms dart/exe 3.6.1
crystal 1.cr 245ms 2.9ms 3.8MB 237ms 0ms crystal 1.15.0
dart 2.dart 280ms 3.0ms 6.3MB 267ms 0ms dart/exe 3.6.1