Programming Language and compiler
Benchmarks

Crystal VS Haxe benchmarks

Current benchmark data was generated on Sat Mar 29 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
crystal 1.cr 1256ms 14ms 64.0MB 1233ms 7ms crystal 1.15.1
haxe 1.hx 1301ms 12ms 144.0MB 1493ms 73ms haxe/cpp 4.3.6
haxe 2.hx 4443ms 22ms 495.1MB 5023ms 253ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 48.7MB 5697ms 393ms haxe/hl/c 4.3.6
haxe 2.hx timeout 0.0ms 83.0MB 5100ms 663ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 50.4MB 7860ms 443ms haxe/hl/jit 1.15.0
haxe 2.hx timeout 0.0ms 131.0MB 7477ms 797ms haxe/hl/jit 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 92ms 6.0ms 25.6MB 83ms 10ms haxe/cpp 4.3.6
crystal 1.cr 104ms 3.0ms 10.9MB 90ms 0ms crystal 1.15.1
haxe 2.hx 401ms 15ms 58.3MB 433ms 27ms haxe/cpp 4.3.6
haxe 1.hx 649ms 11ms 8.7MB 620ms 43ms haxe/hl/c 4.3.6
haxe 1.hx 678ms 13ms 11.2MB 723ms 63ms haxe/hl/jit 1.15.0
haxe 2.hx 939ms 16ms 13.7MB 830ms 153ms haxe/hl/c 4.3.6
haxe 2.hx 1009ms 1.4ms 25.0MB 983ms 177ms haxe/hl/jit 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 1216ms 13ms 19.6MB 1143ms 53ms crystal 1.15.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 71ms 1.5ms 7.0MB 43ms 10ms crystal 1.15.1

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 58ms 0.5ms 6.4MB 43ms 0ms crystal 1.15.1

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 22ms 1.6ms 5.0MB 10ms 0ms crystal 1.15.1

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2498ms 7.0ms 2.8MB 2487ms 0ms crystal 1.15.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 207ms 2.8ms 2.9MB 200ms 0ms crystal 1.15.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 557ms 5.8ms 3.4MB 460ms 77ms crystal 1.15.1
crystal 1.cr 698ms 1.4ms 14.4MB 580ms 107ms crystal 1.15.1
haxe 1.hx 2421ms 3.1ms 25.5MB 2330ms 223ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.2MB 4323ms 887ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 3.6MB 4357ms 880ms haxe/hl/jit 1.15.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 59ms 0.6ms 3.5MB 43ms 0ms crystal 1.15.1
crystal 1.cr 75ms 1.4ms 4.8MB 53ms 10ms crystal 1.15.1
haxe 1.hx 259ms 2.1ms 25.6MB 227ms 33ms haxe/cpp 4.3.6
haxe 1.hx 674ms 3.8ms 3.3MB 563ms 127ms haxe/hl/c 4.3.6
haxe 1.hx 691ms 12ms 3.6MB 607ms 107ms haxe/hl/jit 1.15.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2.0ms 0.2ms 2.9MB 0ms 0ms crystal 1.15.1
haxe 1.hx 2.0ms 0.1ms 2.9MB 0ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 2.3ms 0.2ms 4.4MB 0ms 0ms haxe/cpp 4.3.6
haxe 1.hx 3.4ms 0.3ms 2.8MB 0ms 0ms haxe/hl/jit 1.15.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2484ms 156ms 256.0MB 320ms 500ms crystal 1.15.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1251ms 108ms 59.4MB 30ms 80ms crystal 1.15.1

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 37ms 0.6ms 2.9MB 30ms 0ms crystal 1.15.1
crystal 1.cr 66ms 1.0ms 2.9MB 60ms 0ms crystal 1.15.1
haxe 1.hx 136ms 2.7ms 3.1MB 127ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 136ms 1.7ms 20.6MB 120ms 0ms haxe/cpp 4.3.6
haxe 1.hx 158ms 3.4ms 3.8MB 150ms 0ms haxe/hl/jit 1.15.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 100ms 2.3ms 2.9MB 90ms 0ms crystal 1.15.1
crystal 1.cr 186ms 3.7ms 2.9MB 173ms 0ms crystal 1.15.1
haxe 1.hx 381ms 2.3ms 25.6MB 363ms 10ms haxe/cpp 4.3.6
haxe 1.hx 401ms 1.9ms 3.1MB 387ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 457ms 5.8ms 3.8MB 447ms 0ms haxe/hl/jit 1.15.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 18ms 0.8ms 2.9MB 10ms 0ms crystal 1.15.1
crystal 1.cr 32ms 1.0ms 2.9MB 20ms 0ms crystal 1.15.1
haxe 1.hx 62ms 2.2ms 12.6MB 50ms 0ms haxe/cpp 4.3.6
haxe 1.hx 67ms 0.3ms 3.0MB 60ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 79ms 1.5ms 3.8MB 70ms 0ms haxe/hl/jit 1.15.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 313ms 0.1ms 9.0MB 300ms 0ms crystal 1.15.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 18ms 0.5ms 6.3MB 10ms 0ms crystal 1.15.1

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 847ms 17ms 64.0MB 823ms 10ms crystal 1.15.1
haxe 1.hx 933ms 22ms 95.0MB 1037ms 47ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 32.5MB 4943ms 503ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 55.0MB 6053ms 480ms haxe/hl/jit 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 156ms 3.3ms 22.2MB 140ms 0ms crystal 1.15.1
haxe 1.hx 172ms 1.2ms 26.8MB 177ms 10ms haxe/cpp 4.3.6
haxe 1.hx 1301ms 12ms 10.8MB 1240ms 140ms haxe/hl/c 4.3.6
haxe 1.hx 1444ms 22ms 20.4MB 1460ms 140ms haxe/hl/jit 1.15.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 343ms 2.0ms 3.1MB 333ms 0ms crystal 1.15.1
crystal 1.cr 345ms 1.8ms 3.1MB 337ms 0ms crystal 1.15.1
haxe 2.hx 857ms 10ms 3.0MB 850ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 1076ms 3.9ms 3.0MB 1063ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 1404ms 10ms 25.6MB 1593ms 40ms haxe/cpp 4.3.6
haxe 2.hx 2410ms 1.3ms 3.8MB 2400ms 0ms haxe/hl/jit 1.15.0
haxe 1.hx 2474ms 9.7ms 3.6MB 2463ms 0ms haxe/hl/jit 1.15.0
haxe 1.hx timeout 0.0ms 4.4MB 4990ms 0ms haxe/cpp 4.3.6
haxe 2.hx timeout 0.0ms 4.4MB 4990ms 0ms haxe/cpp 4.3.6
haxe 3.hx timeout 0.0ms 3.4MB 3883ms 1613ms haxe/hl/c 4.3.6
haxe 3.hx timeout 0.0ms 3.8MB 4170ms 1280ms haxe/hl/jit 1.15.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 38ms 1.2ms 3.1MB 30ms 0ms crystal 1.15.1
crystal 2.cr 39ms 0.8ms 3.1MB 30ms 0ms crystal 1.15.1
haxe 2.hx 90ms 1.4ms 3.0MB 80ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 113ms 2.6ms 3.0MB 107ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 155ms 0.5ms 25.6MB 157ms 7ms haxe/cpp 4.3.6
haxe 2.hx 248ms 0.9ms 3.6MB 240ms 0ms haxe/hl/jit 1.15.0
haxe 1.hx 253ms 2.1ms 3.6MB 240ms 0ms haxe/hl/jit 1.15.0
haxe 3.hx 676ms 3.1ms 3.3MB 490ms 243ms haxe/hl/c 4.3.6
haxe 2.hx 679ms 4.7ms 4.4MB 670ms 0ms haxe/cpp 4.3.6
haxe 3.hx 799ms 15ms 3.8MB 657ms 203ms haxe/hl/jit 1.15.0
haxe 1.hx 812ms 4.7ms 4.6MB 800ms 0ms haxe/cpp 4.3.6

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 300ms 2.7ms 8.1MB 290ms 0ms crystal 1.15.1
crystal 1.cr 424ms 4.1ms 42.3MB 413ms 0ms crystal 1.15.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 77ms 0.8ms 4.4MB 70ms 0ms crystal 1.15.1
crystal 1.cr 94ms 1.2ms 13.0MB 80ms 0ms crystal 1.15.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1888ms 51ms 6.2MB 1860ms 13ms crystal 1.15.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 458ms 11ms 4.9MB 447ms 0ms crystal 1.15.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3796ms 8.8ms 4.4MB 3783ms 0ms crystal 1.15.1
haxe 1.hx 3930ms 12ms 3.3MB 3917ms 0ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 6.9MB 4990ms 0ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.9MB 4990ms 0ms haxe/hl/jit 1.15.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 955ms 4.2ms 4.3MB 943ms 0ms crystal 1.15.1
haxe 1.hx 991ms 5.0ms 3.2MB 980ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 2401ms 2.0ms 6.6MB 2390ms 0ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.9MB 4990ms 0ms haxe/hl/jit 1.15.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 243ms 3.1ms 3.8MB 233ms 0ms crystal 1.15.1
haxe 1.hx 254ms 1.0ms 3.1MB 243ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 603ms 0.7ms 5.4MB 590ms 0ms haxe/cpp 4.3.6
haxe 1.hx 2320ms 3.3ms 3.6MB 2310ms 0ms haxe/hl/jit 1.15.0