Programming Language and compiler
Benchmarks

Crystal VS Haxe benchmarks

Current benchmark data was generated on Sun Jun 01 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 1219ms 8.5ms 64.2MB 1200ms 10ms crystal 1.16.3
haxe 1.hx 1321ms 15ms 143.9MB 1510ms 67ms haxe/cpp 4.3.6
haxe 2.hx 4384ms 33ms 495.3MB 4913ms 253ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 48.6MB 5477ms 433ms haxe/hl/c 4.3.6
haxe 2.hx timeout 0.0ms 83.0MB 4890ms 730ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 51.1MB 7413ms 413ms haxe/hl/jit 1.15.0
haxe 2.hx timeout 0.0ms 130.9MB 7360ms 757ms 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 2.1ms 25.6MB 90ms 10ms haxe/cpp 4.3.6
crystal 1.cr 105ms 2.8ms 10.9MB 97ms 0ms crystal 1.16.3
haxe 2.hx 398ms 1.3ms 58.3MB 427ms 23ms haxe/cpp 4.3.6
haxe 1.hx 637ms 1.2ms 8.8MB 613ms 43ms haxe/hl/c 4.3.6
haxe 1.hx 671ms 6.2ms 11.2MB 740ms 53ms haxe/hl/jit 1.15.0
haxe 2.hx 918ms 2.5ms 13.7MB 813ms 147ms haxe/hl/c 4.3.6
haxe 2.hx 922ms 6.6ms 25.0MB 903ms 157ms 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 1500ms 42ms 19.9MB 1437ms 53ms crystal 1.16.3

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 81ms 2.1ms 7.1MB 60ms 10ms crystal 1.16.3

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 57ms 0.6ms 6.5MB 40ms 0ms crystal 1.16.3

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 22ms 1.4ms 5.3MB 10ms 0ms crystal 1.16.3

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2486ms 18ms 2.9MB 2477ms 0ms crystal 1.16.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 205ms 2.3ms 2.9MB 197ms 0ms crystal 1.16.3

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 536ms 2.9ms 3.5MB 450ms 73ms crystal 1.16.3
crystal 1.cr 678ms 2.3ms 14.6MB 570ms 97ms crystal 1.16.3
haxe 1.hx 2367ms 6.2ms 25.6MB 2263ms 190ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.2MB 4363ms 863ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 3.6MB 4433ms 817ms 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 58ms 0.7ms 3.5MB 40ms 10ms crystal 1.16.3
crystal 1.cr 73ms 1.4ms 4.9MB 50ms 7ms crystal 1.16.3
haxe 1.hx 250ms 3.7ms 25.6MB 223ms 27ms haxe/cpp 4.3.6
haxe 1.hx 653ms 8.5ms 3.3MB 567ms 107ms haxe/hl/c 4.3.6
haxe 1.hx 683ms 11ms 3.9MB 600ms 103ms 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 1.9ms 0.2ms 2.9MB 0ms 0ms crystal 1.16.3
haxe 1.hx 2.1ms 0.2ms 2.9MB 0ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 2.3ms 0.2ms 4.5MB 0ms 0ms haxe/cpp 4.3.6
haxe 1.hx 3.5ms 0.4ms 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 2991ms 528ms 240.7MB 293ms 427ms crystal 1.16.3

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1293ms 19ms 53.3MB 27ms 77ms crystal 1.16.3

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 35ms 0.6ms 3.0MB 30ms 0ms crystal 1.16.3
crystal 1.cr 65ms 1.6ms 3.0MB 57ms 0ms crystal 1.16.3
haxe 1.hx 135ms 1.8ms 20.5MB 120ms 3ms haxe/cpp 4.3.6
haxe 1.hx 136ms 1.7ms 3.1MB 127ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 156ms 2.5ms 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 99ms 1.4ms 3.0MB 90ms 0ms crystal 1.16.3
crystal 1.cr 191ms 5.3ms 3.0MB 183ms 0ms crystal 1.16.3
haxe 1.hx 381ms 3.1ms 25.8MB 367ms 3ms haxe/cpp 4.3.6
haxe 1.hx 396ms 2.2ms 3.0MB 383ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 453ms 3.7ms 3.8MB 443ms 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 17ms 0.5ms 3.0MB 10ms 0ms crystal 1.16.3
crystal 1.cr 30ms 0.8ms 3.0MB 20ms 0ms crystal 1.16.3
haxe 1.hx 63ms 1.0ms 12.3MB 50ms 0ms haxe/cpp 4.3.6
haxe 1.hx 68ms 1.6ms 3.0MB 60ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 77ms 0.4ms 3.6MB 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 314ms 0.9ms 9.3MB 300ms 0ms crystal 1.16.3

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 17ms 0.0ms 5.4MB 10ms 0ms crystal 1.16.3

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 828ms 9.1ms 64.2MB 810ms 10ms crystal 1.16.3
haxe 1.hx 904ms 6.1ms 94.9MB 990ms 47ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 32.6MB 4917ms 523ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 57.0MB 5810ms 497ms 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 170ms 3.1ms 26.6MB 173ms 10ms haxe/cpp 4.3.6
crystal 1.cr 172ms 4.4ms 22.3MB 160ms 0ms crystal 1.16.3
haxe 1.hx 1298ms 40ms 20.3MB 1337ms 120ms haxe/hl/jit 1.15.0
haxe 1.hx 1307ms 5.9ms 10.8MB 1263ms 133ms haxe/hl/c 4.3.6

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 343ms 2.0ms 3.3MB 333ms 0ms crystal 1.16.3
crystal 1.cr 345ms 2.9ms 3.4MB 337ms 0ms crystal 1.16.3
haxe 2.hx 856ms 5.0ms 3.0MB 843ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 1068ms 2.6ms 3.0MB 1057ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 1384ms 8.3ms 25.6MB 1513ms 33ms haxe/cpp 4.3.6
haxe 2.hx 2410ms 13ms 3.6MB 2400ms 0ms haxe/hl/jit 1.15.0
haxe 1.hx 2467ms 0.4ms 3.6MB 2460ms 0ms haxe/hl/jit 1.15.0
haxe 1.hx timeout 0.0ms 4.5MB 4990ms 0ms haxe/cpp 4.3.6
haxe 2.hx timeout 0.0ms 4.5MB 4990ms 0ms haxe/cpp 4.3.6
haxe 3.hx timeout 0.0ms 3.3MB 3920ms 1600ms haxe/hl/c 4.3.6
haxe 3.hx timeout 0.0ms 4.0MB 4170ms 1310ms 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 1.3ms 3.3MB 30ms 0ms crystal 1.16.3
crystal 2.cr 38ms 0.6ms 3.3MB 30ms 0ms crystal 1.16.3
haxe 2.hx 88ms 0.6ms 3.0MB 80ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 111ms 0.5ms 3.0MB 100ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 154ms 1.9ms 25.6MB 147ms 13ms haxe/cpp 4.3.6
haxe 2.hx 245ms 0.1ms 3.6MB 233ms 0ms haxe/hl/jit 1.15.0
haxe 1.hx 255ms 2.4ms 3.6MB 247ms 0ms haxe/hl/jit 1.15.0
haxe 3.hx 669ms 2.7ms 3.1MB 513ms 213ms haxe/hl/c 4.3.6
haxe 2.hx 674ms 6.4ms 4.4MB 667ms 0ms haxe/cpp 4.3.6
haxe 3.hx 781ms 7.2ms 3.8MB 637ms 207ms haxe/hl/jit 1.15.0
haxe 1.hx 811ms 1.5ms 4.4MB 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 345ms 3.2ms 8.2MB 337ms 0ms crystal 1.16.3
crystal 1.cr 423ms 6.7ms 42.9MB 410ms 0ms crystal 1.16.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 87ms 2.3ms 4.5MB 80ms 0ms crystal 1.16.3
crystal 1.cr 91ms 3.5ms 13.2MB 80ms 0ms crystal 1.16.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1947ms 50ms 6.3MB 1917ms 20ms crystal 1.16.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 450ms 9.9ms 5.0MB 437ms 0ms crystal 1.16.3

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3757ms 8.8ms 4.6MB 3743ms 0ms crystal 1.16.3
haxe 1.hx 3896ms 11ms 3.3MB 3883ms 0ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 7.0MB 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 942ms 1.3ms 4.4MB 930ms 0ms crystal 1.16.3
haxe 1.hx 985ms 3.4ms 3.2MB 973ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 2398ms 1.9ms 6.5MB 2387ms 0ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.8MB 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 240ms 1.7ms 3.9MB 230ms 0ms crystal 1.16.3
haxe 1.hx 250ms 2.4ms 3.0MB 240ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 603ms 1.6ms 5.4MB 590ms 0ms haxe/cpp 4.3.6
haxe 1.hx 2301ms 12ms 3.8MB 2290ms 0ms haxe/hl/jit 1.15.0