Programming Language and compiler
Benchmarks

Crystal VS Chapel benchmarks

Current benchmark data was generated on Sat Mar 29 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 1256ms 14ms 64.0MB 1233ms 7ms crystal 1.15.1
chapel 4.chpl 1958ms 4.8ms 62.3MB 1947ms 0ms chpl 1.31.0
chapel 3.chpl 2059ms 4.1ms 62.3MB 2053ms 0ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 104ms 3.0ms 10.9MB 90ms 0ms crystal 1.15.1
chapel 4.chpl 185ms 2.7ms 32.3MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 190ms 1.5ms 32.2MB 183ms 0ms chpl 1.31.0

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1216ms 13ms 19.6MB 1143ms 53ms crystal 1.15.1
chapel 1-m.chpl 2297ms 114ms 621.8MB 4473ms 83ms chpl 1.31.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 71ms 1.5ms 7.0MB 43ms 10ms crystal 1.15.1
chapel 1-m.chpl 189ms 5.7ms 488.6MB 307ms 43ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 58ms 0.5ms 6.4MB 43ms 0ms crystal 1.15.1
chapel 1.chpl 72ms 0.6ms 32.5MB 70ms 0ms chpl 1.31.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 22ms 1.6ms 5.0MB 10ms 0ms crystal 1.15.1
chapel 1.chpl 35ms 2.2ms 30.5MB 30ms 0ms chpl 1.31.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2498ms 7.0ms 2.8MB 2487ms 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 2.8ms 2.9MB 200ms 0ms crystal 1.15.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5-m.chpl 106ms 0.9ms 28.4MB 190ms 0ms chpl 1.31.0
crystal 2.cr 557ms 5.8ms 3.4MB 460ms 77ms crystal 1.15.1
crystal 1.cr 698ms 1.4ms 14.4MB 580ms 107ms crystal 1.15.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5.chpl 23ms 2.1ms 28.4MB 20ms 0ms chpl 1.31.0
crystal 2.cr 59ms 0.6ms 3.5MB 43ms 0ms crystal 1.15.1
crystal 1.cr 75ms 1.4ms 4.8MB 53ms 10ms 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 0.2ms 2.9MB 0ms 0ms crystal 1.15.1
chapel 1.chpl 11ms 0.3ms 28.8MB 0ms 0ms chpl 1.31.0

http-server

Input: 3000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 2484ms 156ms 256.0MB 320ms 500ms crystal 1.15.1

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1251ms 108ms 59.4MB 30ms 80ms 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 0.6ms 2.9MB 30ms 0ms crystal 1.15.1
crystal 1.cr 66ms 1.0ms 2.9MB 60ms 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 100ms 2.3ms 2.9MB 90ms 0ms crystal 1.15.1
crystal 1.cr 186ms 3.7ms 2.9MB 173ms 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 18ms 0.8ms 2.9MB 10ms 0ms crystal 1.15.1
crystal 1.cr 32ms 1.0ms 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 0.1ms 9.0MB 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 847ms 17ms 64.0MB 823ms 10ms crystal 1.15.1

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 156ms 3.3ms 22.2MB 140ms 0ms crystal 1.15.1

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 324ms 2.3ms 28.8MB 317ms 0ms chpl 1.31.0
crystal 2.cr 343ms 2.0ms 3.1MB 333ms 0ms crystal 1.15.1
crystal 1.cr 345ms 1.8ms 3.1MB 337ms 0ms crystal 1.15.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 38ms 1.2ms 3.1MB 30ms 0ms crystal 1.15.1
crystal 2.cr 39ms 0.8ms 3.1MB 30ms 0ms crystal 1.15.1
chapel 2.chpl 44ms 1.5ms 29.0MB 40ms 0ms chpl 1.31.0

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 300ms 2.7ms 8.1MB 290ms 0ms crystal 1.15.1
crystal 1.cr 424ms 4.1ms 42.3MB 413ms 0ms crystal 1.15.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 77ms 0.8ms 4.4MB 70ms 0ms crystal 1.15.1
crystal 1.cr 94ms 1.2ms 13.0MB 80ms 0ms crystal 1.15.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 447ms 1.4ms 30.3MB 440ms 0ms chpl 1.31.0
crystal 1.cr 1888ms 51ms 6.2MB 1860ms 13ms crystal 1.15.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 115ms 2.1ms 30.4MB 110ms 0ms chpl 1.31.0
crystal 1.cr 458ms 11ms 4.9MB 447ms 0ms crystal 1.15.1

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 1924ms 19ms 28.9MB 3827ms 0ms chpl 1.31.0
chapel 1.chpl 3722ms 4.8ms 28.8MB 3717ms 0ms chpl 1.31.0
crystal 1.cr 3796ms 8.8ms 4.4MB 3783ms 0ms crystal 1.15.1

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 490ms 0.4ms 28.9MB 953ms 0ms chpl 1.31.0
chapel 1.chpl 943ms 3.9ms 28.8MB 940ms 0ms chpl 1.31.0
crystal 1.cr 955ms 4.2ms 4.3MB 943ms 0ms crystal 1.15.1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 135ms 1.0ms 28.9MB 243ms 0ms chpl 1.31.0
crystal 1.cr 243ms 3.1ms 3.8MB 233ms 0ms crystal 1.15.1
chapel 1.chpl 246ms 0.4ms 28.8MB 240ms 0ms chpl 1.31.0