Programming Language and compiler
Benchmarks

Crystal VS Codon benchmarks

Current benchmark data was generated on Tue Mar 25 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 1276ms 8.3ms 64.0MB 1257ms 0ms crystal 1.15.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 105ms 2.2ms 10.9MB 90ms 0ms crystal 1.15.1

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1381ms 34ms 19.6MB 1307ms 57ms crystal 1.15.1

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 71ms 3.7ms 7.1MB 50ms 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 59ms 1.7ms 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 0.7ms 5.1MB 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 2508ms 6.1ms 2.8MB 2493ms 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 1.2ms 2.8MB 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 555ms 3.0ms 3.4MB 450ms 90ms crystal 1.15.1
crystal 1.cr 694ms 0.6ms 14.4MB 573ms 107ms crystal 1.15.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 59ms 0.3ms 3.4MB 40ms 7ms crystal 1.15.1
crystal 1.cr 75ms 1.4ms 4.8MB 57ms 7ms crystal 1.15.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2.0ms 0.5ms 2.8MB 0ms 0ms crystal 1.15.1
codon 1-m.py 11ms 0.7ms 8.6MB 20ms 0ms codon 0.18.2

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1690ms 21ms 287.8MB 323ms 510ms crystal 1.15.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1190ms 102ms 59.1MB 37ms 83ms 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 1.3ms 2.9MB 30ms 0ms crystal 1.15.1
crystal 1.cr 65ms 2.1ms 2.9MB 57ms 0ms crystal 1.15.1

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 103ms 1.4ms 2.9MB 90ms 0ms crystal 1.15.1
crystal 1.cr 186ms 1.8ms 2.9MB 177ms 0ms crystal 1.15.1

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 17ms 0.5ms 2.9MB 10ms 0ms crystal 1.15.1
crystal 1.cr 31ms 1.7ms 2.9MB 20ms 0ms crystal 1.15.1

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 313ms 0.7ms 9.2MB 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 864ms 6.5ms 64.0MB 843ms 10ms crystal 1.15.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 157ms 3.4ms 22.1MB 143ms 0ms crystal 1.15.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 344ms 4.8ms 3.3MB 333ms 0ms crystal 1.15.1
crystal 1.cr 345ms 2.6ms 3.3MB 333ms 0ms crystal 1.15.1
codon 1.py 1322ms 1.2ms 8.8MB 1630ms 0ms codon 0.18.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 38ms 1.5ms 3.1MB 30ms 0ms crystal 1.15.1
crystal 2.cr 38ms 0.5ms 3.1MB 30ms 0ms crystal 1.15.1
codon 1-m.py 176ms 3.4ms 9.0MB 487ms 0ms codon 0.18.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 301ms 3.6ms 8.1MB 290ms 0ms crystal 1.15.1
crystal 1.cr 440ms 6.5ms 42.3MB 430ms 0ms crystal 1.15.1
codon 1-m.py 461ms 8.3ms 47.7MB 763ms 0ms codon 0.18.2
codon 2.py 1572ms 19ms 100.8MB 1877ms 27ms codon 0.18.2

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 77ms 2.1ms 4.4MB 67ms 0ms crystal 1.15.1
crystal 1.cr 91ms 3.7ms 13.0MB 80ms 0ms crystal 1.15.1
codon 1-m.py 125ms 0.2ms 18.6MB 430ms 0ms codon 0.18.2
codon 2-m.py 397ms 1.3ms 27.1MB 707ms 3ms codon 0.18.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1886ms 42ms 6.2MB 1853ms 17ms crystal 1.15.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 479ms 12ms 5.0MB 463ms 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 3792ms 11ms 4.5MB 3783ms 0ms crystal 1.15.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 952ms 1.2ms 4.3MB 940ms 0ms crystal 1.15.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 248ms 11ms 3.8MB 237ms 0ms crystal 1.15.1