Programming Language and compiler
Benchmarks

Crystal VS C benchmarks

Current benchmark data was generated on Wed Jan 22 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 1316ms 80ms 64.1MB 1290ms 10ms crystal 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 110ms 9.3ms 10.9MB 100ms 0ms crystal 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 1367ms 11ms 19.8MB 1300ms 50ms crystal 1.15.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 76ms 1.4ms 7.1MB 57ms 7ms crystal 1.15.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 62ms 1.9ms 6.4MB 43ms 3ms crystal 1.15.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 23ms 1.6ms 5.1MB 10ms 0ms crystal 1.15.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2495ms 6.5ms 2.8MB 2483ms 0ms crystal 1.15.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 205ms 1.5ms 2.8MB 193ms 0ms crystal 1.15.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 573ms 3.5ms 3.5MB 450ms 107ms crystal 1.15.0
crystal 1.cr 720ms 0.6ms 14.6MB 573ms 127ms crystal 1.15.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 61ms 1.2ms 3.5MB 43ms 7ms crystal 1.15.0
crystal 1.cr 76ms 0.8ms 4.9MB 53ms 7ms crystal 1.15.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 1.0ms 0.1ms 1.4MB 0ms 0ms zigcc 0.13.0
c 1.c 1.3ms 0.2ms 2.1MB 0ms 0ms gcc 14.2.0
c 1.c 1.4ms 0.1ms 2.0MB 0ms 0ms clang 14.0.0-1ubuntu1.1
crystal 1.cr 1.9ms 0.2ms 2.9MB 0ms 0ms crystal 1.15.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2547ms 222ms 197.7MB 403ms 490ms crystal 1.15.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1102ms 0.9ms 36.6MB 47ms 77ms crystal 1.15.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 37ms 1.0ms 2.9MB 23ms 0ms crystal 1.15.0
crystal 1.cr 65ms 1.7ms 3.0MB 57ms 0ms crystal 1.15.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 101ms 1.0ms 2.9MB 90ms 0ms crystal 1.15.0
crystal 1.cr 184ms 2.6ms 2.9MB 170ms 0ms crystal 1.15.0

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 0-unsafe.cr 18ms 0.6ms 2.9MB 10ms 0ms crystal 1.15.0
crystal 1.cr 30ms 1.5ms 2.9MB 20ms 0ms crystal 1.15.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-mffi.c 223ms 18ms 7.6MB 810ms 20ms clang 14.0.0-1ubuntu1.1
c 1-mffi.c 297ms 47ms 6.5MB 860ms 3ms gcc 14.2.0
crystal 1.cr 314ms 3.9ms 9.2MB 303ms 0ms crystal 1.15.0
c 1-ffi.c 433ms 2.9ms 6.0MB 420ms 0ms zigcc 0.13.0
c 1-mffi.c 434ms 2.5ms 6.0MB 420ms 0ms zigcc 0.13.0
c 1-ffi.c 458ms 1.7ms 6.6MB 447ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 541ms 1.6ms 6.7MB 530ms 0ms gcc 14.2.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1-mffi.c 16ms 1.8ms 8.5MB 27ms 0ms clang 14.0.0-1ubuntu1.1
crystal 1.cr 18ms 0.3ms 5.8MB 10ms 0ms crystal 1.15.0
c 1-ffi.c 20ms 0.1ms 3.0MB 10ms 0ms zigcc 0.13.0
c 1-mffi.c 21ms 1.3ms 3.0MB 10ms 0ms zigcc 0.13.0
c 1-mffi.c 22ms 0.4ms 5.6MB 53ms 0ms gcc 14.2.0
c 1-ffi.c 22ms 0.5ms 3.6MB 10ms 0ms clang 14.0.0-1ubuntu1.1
c 1-ffi.c 25ms 0.1ms 3.8MB 13ms 0ms gcc 14.2.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 860ms 29ms 64.1MB 830ms 10ms crystal 1.15.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 178ms 4.4ms 22.0MB 160ms 3ms crystal 1.15.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 246ms 1.0ms 1.5MB 233ms 0ms zigcc 0.13.0
c 5.c 298ms 0.7ms 1.5MB 290ms 0ms zigcc 0.13.0
c 8-i.c 301ms 1.9ms 2.1MB 290ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 311ms 1.5ms 2.3MB 300ms 0ms gcc 14.2.0
c 5.c 311ms 0.3ms 2.3MB 300ms 0ms gcc 14.2.0
c 5.c 315ms 0.3ms 2.1MB 300ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 315ms 1.0ms 1.5MB 303ms 0ms zigcc 0.13.0
c 2.c 317ms 2.6ms 2.1MB 307ms 0ms clang 14.0.0-1ubuntu1.1
c 8-i.c 332ms 0.9ms 2.3MB 320ms 0ms gcc 14.2.0
crystal 1.cr 342ms 2.4ms 3.3MB 330ms 0ms crystal 1.15.0
crystal 2.cr 342ms 1.6ms 3.3MB 330ms 0ms crystal 1.15.0

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 8-i.c 26ms 0.1ms 1.5MB 20ms 0ms zigcc 0.13.0
c 5.c 32ms 0.2ms 1.5MB 20ms 0ms zigcc 0.13.0
c 8-i.c 32ms 0.6ms 2.1MB 23ms 0ms clang 14.0.0-1ubuntu1.1
c 2.c 33ms 0.3ms 1.5MB 20ms 0ms zigcc 0.13.0
c 2.c 33ms 0.1ms 2.3MB 23ms 0ms gcc 14.2.0
c 5.c 33ms 0.1ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
c 5.c 34ms 0.3ms 2.3MB 27ms 0ms gcc 14.2.0
c 8-i.c 35ms 0.1ms 2.3MB 27ms 0ms gcc 14.2.0
c 2.c 36ms 3.1ms 2.1MB 27ms 0ms clang 14.0.0-1ubuntu1.1
crystal 2.cr 37ms 0.7ms 3.3MB 23ms 0ms crystal 1.15.0
crystal 1.cr 38ms 1.4ms 3.3MB 30ms 0ms crystal 1.15.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 257ms 1.9ms 40.9MB 240ms 0ms gcc 14.2.0
c 1.c 267ms 2.2ms 41.0MB 247ms 3ms clang 14.0.0-1ubuntu1.1
c 1.c 292ms 2.5ms 40.3MB 273ms 3ms zigcc 0.13.0
crystal 2.cr 299ms 3.7ms 8.2MB 287ms 0ms crystal 1.15.0
crystal 1.cr 419ms 1.3ms 42.8MB 403ms 0ms crystal 1.15.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 1.c 49ms 1.7ms 11.6MB 40ms 0ms gcc 14.2.0
c 1.c 51ms 2.0ms 11.7MB 37ms 0ms clang 14.0.0-1ubuntu1.1
c 1.c 54ms 2.1ms 11.0MB 40ms 0ms zigcc 0.13.0
crystal 2.cr 75ms 1.4ms 4.4MB 67ms 0ms crystal 1.15.0
crystal 1.cr 89ms 2.6ms 13.0MB 77ms 0ms crystal 1.15.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1907ms 10ms 6.2MB 1877ms 13ms crystal 1.15.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 449ms 18ms 5.1MB 430ms 0ms crystal 1.15.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 6-im.c 969ms 4.6ms 4.1MB 3777ms 0ms gcc 14.2.0
c 4-m.c 976ms 6.3ms 4.1MB 3807ms 0ms gcc 14.2.0
c 6-im.c 1005ms 2.0ms 5.3MB 3930ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1102ms 12ms 4.1MB 4300ms 0ms gcc 14.2.0
c 4-m.c 1121ms 6.6ms 5.2MB 4377ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 1349ms 29ms 7.3MB 5250ms 7ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1870ms 63ms 7.2MB 7260ms 3ms clang 14.0.0-1ubuntu1.1
c 3-m.c 1983ms 19ms 4.1MB 7780ms 3ms gcc 14.2.0
crystal 1.cr 3801ms 27ms 4.4MB 3787ms 0ms crystal 1.15.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 4-m.c 253ms 0.8ms 4.1MB 963ms 0ms gcc 14.2.0
c 6-im.c 256ms 5.0ms 4.0MB 970ms 0ms gcc 14.2.0
c 6-im.c 263ms 9.0ms 5.3MB 977ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 291ms 13ms 4.0MB 1097ms 0ms gcc 14.2.0
c 4-m.c 292ms 5.9ms 7.0MB 1100ms 3ms clang 14.0.0-1ubuntu1.1
c 5-im.c 363ms 27ms 5.3MB 1363ms 3ms clang 14.0.0-1ubuntu1.1
c 3-m.c 474ms 12ms 7.2MB 1800ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 504ms 4.5ms 4.0MB 1957ms 0ms gcc 14.2.0
crystal 1.cr 955ms 2.5ms 4.3MB 943ms 0ms crystal 1.15.0

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
c 6-im.c 72ms 2.5ms 4.0MB 250ms 0ms gcc 14.2.0
c 6-im.c 72ms 0.6ms 7.3MB 240ms 0ms clang 14.0.0-1ubuntu1.1
c 4-m.c 77ms 7.1ms 4.0MB 263ms 0ms gcc 14.2.0
c 4-m.c 80ms 0.6ms 5.2MB 273ms 0ms clang 14.0.0-1ubuntu1.1
c 5-im.c 80ms 0.7ms 4.0MB 280ms 0ms gcc 14.2.0
c 5-im.c 94ms 2.4ms 5.5MB 330ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 124ms 0.9ms 5.1MB 443ms 0ms clang 14.0.0-1ubuntu1.1
c 3-m.c 133ms 1.5ms 4.0MB 493ms 0ms gcc 14.2.0
crystal 1.cr 245ms 2.9ms 3.8MB 237ms 0ms crystal 1.15.0