Programming Language and compiler
Benchmarks

All Crystal 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

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1219ms 8.5ms 64.2MB 1200ms 10ms crystal 1.16.3

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 105ms 2.8ms 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 1500ms 42ms 19.9MB 1437ms 53ms crystal 1.16.3

Input: 1000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 81ms 2.1ms 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 57ms 0.6ms 6.5MB 40ms 0ms crystal 1.16.3

Input: 100000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 22ms 1.4ms 5.3MB 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 2486ms 18ms 2.9MB 2477ms 0ms crystal 1.16.3

Input: 10

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 205ms 2.3ms 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 536ms 2.9ms 3.5MB 450ms 73ms crystal 1.16.3
1.cr 678ms 2.3ms 14.6MB 570ms 97ms crystal 1.16.3

Input: 250000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 58ms 0.7ms 3.5MB 40ms 10ms crystal 1.16.3
1.cr 73ms 1.4ms 4.9MB 50ms 7ms crystal 1.16.3

helloworld

Input: QwQ

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 1.9ms 0.2ms 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 2991ms 528ms 240.7MB 293ms 427ms crystal 1.16.3

Input: 500

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

lru

Input: 1000 1000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-unsafe.cr 35ms 0.6ms 3.0MB 30ms 0ms crystal 1.16.3
1.cr 65ms 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 99ms 1.4ms 3.0MB 90ms 0ms crystal 1.16.3
1.cr 191ms 5.3ms 3.0MB 183ms 0ms crystal 1.16.3

Input: 100 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
0-unsafe.cr 17ms 0.5ms 3.0MB 10ms 0ms crystal 1.16.3
1.cr 30ms 0.8ms 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 314ms 0.9ms 9.3MB 300ms 0ms crystal 1.16.3

Input: 1000

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

merkletrees

Input: 17

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 828ms 9.1ms 64.2MB 810ms 10ms crystal 1.16.3

Input: 15

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 172ms 4.4ms 22.3MB 160ms 0ms crystal 1.16.3

nbody

Input: 5000000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
2.cr 343ms 2.0ms 3.3MB 333ms 0ms crystal 1.16.3
1.cr 345ms 2.9ms 3.4MB 337ms 0ms crystal 1.16.3

Input: 500000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 38ms 1.3ms 3.3MB 30ms 0ms crystal 1.16.3
2.cr 38ms 0.6ms 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 345ms 3.2ms 8.2MB 337ms 0ms crystal 1.16.3
1.cr 423ms 6.7ms 42.9MB 410ms 0ms crystal 1.16.3

Input: 10

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

pidigits

Input: 8000

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

Input: 4000

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

spectral-norm

Input: 8000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 3757ms 8.8ms 4.6MB 3743ms 0ms crystal 1.16.3

Input: 4000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 942ms 1.3ms 4.4MB 930ms 0ms crystal 1.16.3

Input: 2000

code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
1.cr 240ms 1.7ms 3.9MB 230ms 0ms crystal 1.16.3