Programming Language and compiler
Benchmarks

All Crystal benchmarks

Current benchmark data was generated on Mon May 19 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

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1320ms 17ms 64.2MB 1293ms 10ms crystal 1.16.3

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 107ms 0.7ms 10.9MB 97ms 0ms crystal 1.16.3

coro-prime-sieve

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1575ms 42ms 19.9MB 1510ms 53ms crystal 1.16.3

Input: 1000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 88ms 0.4ms 7.1MB 60ms 10ms crystal 1.16.3

edigits

Input: 250001

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 59ms 1.7ms 6.5MB 43ms 0ms crystal 1.16.3

Input: 100000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 22ms 1.6ms 5.1MB 10ms 0ms crystal 1.16.3

fannkuch-redux

Input: 11

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 2481ms 14ms 2.9MB 2473ms 0ms crystal 1.16.3

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 205ms 2.2ms 2.9MB 197ms 0ms crystal 1.16.3

fasta

Input: 2500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 538ms 3.5ms 3.6MB 450ms 77ms crystal 1.16.3
1.cr 683ms 3.5ms 14.6MB 583ms 87ms crystal 1.16.3

Input: 250000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 57ms 0.9ms 3.5MB 40ms 0ms crystal 1.16.3
1.cr 72ms 1.4ms 4.9MB 50ms 10ms crystal 1.16.3

helloworld

Input: QwQ

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1.9ms 0.1ms 2.9MB 0ms 0ms crystal 1.16.3

http-server

Input: 3000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 2258ms 384ms 270.5MB 320ms 440ms crystal 1.16.3

Input: 500

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1238ms 101ms 54.0MB 37ms 73ms crystal 1.16.3

lru

Input: 1000 1000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-unsafe.cr 36ms 1.4ms 3.0MB 30ms 0ms crystal 1.16.3
1.cr 64ms 1.6ms 3.0MB 57ms 0ms crystal 1.16.3

Input: 1000 3000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-unsafe.cr 100ms 1.1ms 3.0MB 90ms 0ms crystal 1.16.3
1.cr 185ms 1.4ms 3.0MB 173ms 0ms crystal 1.16.3

Input: 100 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-unsafe.cr 18ms 0.3ms 3.0MB 10ms 0ms crystal 1.16.3
1.cr 31ms 1.1ms 3.0MB 20ms 0ms crystal 1.16.3

mandelbrot

Input: 5000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 313ms 0.5ms 9.2MB 300ms 0ms crystal 1.16.3

Input: 1000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 17ms 0.1ms 6.1MB 10ms 0ms crystal 1.16.3

merkletrees

Input: 17

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 868ms 11ms 64.2MB 840ms 10ms crystal 1.16.3

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 180ms 3.2ms 22.3MB 163ms 3ms crystal 1.16.3

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 344ms 1.1ms 3.3MB 333ms 0ms crystal 1.16.3
1.cr 345ms 2.6ms 3.3MB 337ms 0ms crystal 1.16.3

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 38ms 1.2ms 3.3MB 30ms 0ms crystal 1.16.3
2.cr 39ms 1.3ms 3.3MB 30ms 0ms crystal 1.16.3

nsieve

Input: 12

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 347ms 2.0ms 8.2MB 340ms 0ms crystal 1.16.3
1.cr 445ms 17ms 42.9MB 430ms 0ms crystal 1.16.3

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 88ms 2.0ms 4.4MB 80ms 0ms crystal 1.16.3
1.cr 91ms 3.3ms 13.2MB 83ms 0ms crystal 1.16.3

pidigits

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1817ms 20ms 6.3MB 1793ms 7ms crystal 1.16.3

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 445ms 4.2ms 5.0MB 433ms 0ms crystal 1.16.3

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 3761ms 7.0ms 4.5MB 3750ms 0ms crystal 1.16.3

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 948ms 1.7ms 4.4MB 940ms 0ms crystal 1.16.3

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 240ms 2.2ms 3.9MB 230ms 0ms crystal 1.16.3