Programming Language and compiler
Benchmarks

Crystal VS Haxe benchmarks

Current benchmark data was generated on Tue Jul 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 1302ms 4.1ms 64.2MB 1273ms 17ms crystal 1.16.3
haxe 1.hx 1350ms 7.6ms 143.9MB 1543ms 67ms haxe/cpp 4.3.6
haxe 2.hx 4488ms 22ms 495.1MB 5047ms 253ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 48.6MB 5730ms 390ms haxe/hl/c 4.3.6
haxe 2.hx timeout 0.0ms 83.0MB 5197ms 670ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 50.4MB 7673ms 410ms haxe/hl/jit 1.16.0
haxe 2.hx timeout 0.0ms 130.9MB 7593ms 773ms haxe/hl/jit 1.16.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 91ms 0.4ms 25.6MB 83ms 10ms haxe/cpp 4.3.6
crystal 1.cr 109ms 2.8ms 11.0MB 100ms 0ms crystal 1.16.3
haxe 2.hx 411ms 5.4ms 58.3MB 453ms 27ms haxe/cpp 4.3.6
haxe 1.hx 668ms 23ms 8.7MB 637ms 50ms haxe/hl/c 4.3.6
haxe 1.hx 713ms 53ms 11.2MB 790ms 57ms haxe/hl/jit 1.16.0
haxe 2.hx 979ms 37ms 13.6MB 883ms 150ms haxe/hl/c 4.3.6
haxe 2.hx 1273ms 68ms 25.0MB 1337ms 187ms haxe/hl/jit 1.16.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1515ms 15ms 19.9MB 1450ms 53ms crystal 1.16.3

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 86ms 1.0ms 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 58ms 0.7ms 7.5MB 43ms 0ms crystal 1.16.3

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 23ms 1.3ms 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 2487ms 23ms 2.9MB 2473ms 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 3.6ms 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 535ms 2.4ms 3.5MB 450ms 70ms crystal 1.16.3
crystal 1.cr 681ms 3.2ms 14.6MB 570ms 97ms crystal 1.16.3
haxe 1.hx 2386ms 0.4ms 25.6MB 2323ms 190ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.2MB 4347ms 877ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 3.7MB 4373ms 870ms haxe/hl/jit 1.16.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 58ms 1.8ms 3.6MB 40ms 7ms crystal 1.16.3
crystal 1.cr 72ms 0.7ms 4.9MB 53ms 7ms crystal 1.16.3
haxe 1.hx 253ms 3.2ms 25.6MB 230ms 27ms haxe/cpp 4.3.6
haxe 1.hx 661ms 18ms 3.3MB 557ms 120ms haxe/hl/c 4.3.6
haxe 1.hx 684ms 4.4ms 3.6MB 600ms 100ms haxe/hl/jit 1.16.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
haxe 1.hx 1.8ms 0.1ms 2.9MB 0ms 0ms haxe/hl/c 4.3.6
crystal 1.cr 2.0ms 0.1ms 2.9MB 0ms 0ms crystal 1.16.3
haxe 1.hx 2.2ms 0.2ms 4.4MB 0ms 0ms haxe/cpp 4.3.6
haxe 1.hx 3.3ms 0.1ms 2.8MB 0ms 0ms haxe/hl/jit 1.16.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3132ms 646ms 240.8MB 317ms 443ms crystal 1.16.3

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1178ms 104ms 53.1MB 30ms 80ms 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 36ms 0.7ms 3.0MB 30ms 0ms crystal 1.16.3
crystal 1.cr 65ms 1.5ms 3.0MB 57ms 0ms crystal 1.16.3
haxe 1.hx 134ms 1.8ms 20.4MB 120ms 0ms haxe/cpp 4.3.6
haxe 1.hx 138ms 0.7ms 3.0MB 130ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 158ms 3.2ms 3.8MB 150ms 0ms haxe/hl/jit 1.16.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 102ms 0.4ms 3.0MB 90ms 0ms crystal 1.16.3
crystal 1.cr 189ms 6.6ms 3.0MB 177ms 0ms crystal 1.16.3
haxe 1.hx 377ms 1.5ms 25.6MB 370ms 0ms haxe/cpp 4.3.6
haxe 1.hx 397ms 6.3ms 3.1MB 390ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 461ms 6.7ms 3.8MB 447ms 0ms haxe/hl/jit 1.16.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 18ms 0.7ms 3.0MB 10ms 0ms crystal 1.16.3
crystal 1.cr 30ms 1.5ms 3.0MB 20ms 0ms crystal 1.16.3
haxe 1.hx 63ms 1.3ms 12.3MB 50ms 0ms haxe/cpp 4.3.6
haxe 1.hx 67ms 0.7ms 3.0MB 60ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 80ms 0.5ms 3.6MB 70ms 0ms haxe/hl/jit 1.16.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 315ms 1.4ms 9.3MB 303ms 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 0.4ms 6.4MB 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 867ms 21ms 64.2MB 843ms 10ms crystal 1.16.3
haxe 1.hx 918ms 0.6ms 95.0MB 1023ms 43ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 32.6MB 5057ms 457ms haxe/hl/c 4.3.6
haxe 1.hx timeout 0.0ms 55.1MB 6137ms 470ms haxe/hl/jit 1.16.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 174ms 3.9ms 22.3MB 157ms 0ms crystal 1.16.3
haxe 1.hx 186ms 8.5ms 26.6MB 190ms 3ms haxe/cpp 4.3.6
haxe 1.hx 1401ms 85ms 10.7MB 1320ms 157ms haxe/hl/c 4.3.6
haxe 1.hx 1668ms 5.5ms 20.3MB 1743ms 150ms haxe/hl/jit 1.16.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 342ms 2.4ms 3.3MB 333ms 0ms crystal 1.16.3
crystal 1.cr 350ms 6.8ms 3.4MB 343ms 0ms crystal 1.16.3
haxe 2.hx 870ms 25ms 3.0MB 860ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 1072ms 15ms 3.0MB 1063ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 1407ms 15ms 25.6MB 1640ms 33ms haxe/cpp 4.3.6
haxe 2.hx 2409ms 10ms 3.8MB 2400ms 0ms haxe/hl/jit 1.16.0
haxe 1.hx 2472ms 13ms 3.6MB 2463ms 0ms haxe/hl/jit 1.16.0
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 3940ms 1563ms haxe/hl/c 4.3.6
haxe 3.hx timeout 0.0ms 3.8MB 4113ms 1343ms haxe/hl/jit 1.16.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 38ms 1.2ms 3.3MB 30ms 0ms crystal 1.16.3
crystal 2.cr 38ms 0.4ms 3.4MB 30ms 0ms crystal 1.16.3
haxe 2.hx 90ms 1.5ms 3.0MB 80ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 112ms 4.0ms 3.0MB 103ms 0ms haxe/hl/c 4.3.6
haxe 3.hx 158ms 2.9ms 25.6MB 163ms 10ms haxe/cpp 4.3.6
haxe 2.hx 247ms 0.8ms 3.6MB 240ms 0ms haxe/hl/jit 1.16.0
haxe 1.hx 253ms 3.2ms 3.6MB 243ms 0ms haxe/hl/jit 1.16.0
haxe 2.hx 681ms 16ms 4.4MB 670ms 0ms haxe/cpp 4.3.6
haxe 3.hx 744ms 120ms 3.1MB 603ms 197ms haxe/hl/c 4.3.6
haxe 3.hx 793ms 3.6ms 3.8MB 663ms 190ms haxe/hl/jit 1.16.0
haxe 1.hx 806ms 1.4ms 4.4MB 797ms 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 348ms 2.9ms 8.3MB 337ms 0ms crystal 1.16.3
crystal 1.cr 422ms 6.9ms 43.0MB 413ms 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 1.4ms 4.5MB 80ms 0ms crystal 1.16.3
crystal 1.cr 90ms 3.2ms 13.2MB 83ms 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 1981ms 59ms 6.2MB 1957ms 13ms crystal 1.16.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 456ms 13ms 5.0MB 440ms 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 3763ms 15ms 4.6MB 3753ms 0ms crystal 1.16.3
haxe 1.hx 3899ms 5.5ms 3.3MB 3883ms 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 1.16.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 946ms 8.1ms 4.4MB 933ms 0ms crystal 1.16.3
haxe 1.hx 983ms 3.6ms 3.1MB 970ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 2397ms 1.1ms 6.5MB 2387ms 0ms haxe/cpp 4.3.6
haxe 1.hx timeout 0.0ms 3.7MB 4990ms 0ms haxe/hl/jit 1.16.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 244ms 2.8ms 3.9MB 237ms 0ms crystal 1.16.3
haxe 1.hx 253ms 1.7ms 3.1MB 240ms 0ms haxe/hl/c 4.3.6
haxe 1.hx 604ms 1.3ms 5.4MB 590ms 0ms haxe/cpp 4.3.6
haxe 1.hx 2306ms 9.6ms 3.6MB 2293ms 0ms haxe/hl/jit 1.16.0