Programming Language and compiler
Benchmarks

Chapel VS 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

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1219ms 8.5ms 64.2MB 1200ms 10ms crystal 1.16.3
chapel 4.chpl 1954ms 6.5ms 62.3MB 1947ms 0ms chpl 1.31.0
chapel 3.chpl 2047ms 28ms 60.3MB 2040ms 3ms chpl 1.31.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 105ms 2.8ms 10.9MB 97ms 0ms crystal 1.16.3
chapel 4.chpl 185ms 3.6ms 32.4MB 180ms 0ms chpl 1.31.0
chapel 3.chpl 185ms 0.6ms 32.2MB 180ms 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 1500ms 42ms 19.9MB 1437ms 53ms crystal 1.16.3
chapel 1-m.chpl 2211ms 79ms 480.1MB 4320ms 70ms chpl 1.31.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 81ms 2.1ms 7.1MB 60ms 10ms crystal 1.16.3
chapel 1-m.chpl 179ms 0.7ms 445.0MB 293ms 40ms chpl 1.31.0

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 57ms 0.6ms 6.5MB 40ms 0ms crystal 1.16.3
chapel 1.chpl 71ms 1.5ms 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 1.4ms 5.3MB 10ms 0ms crystal 1.16.3
chapel 1.chpl 33ms 2.6ms 30.5MB 30ms 0ms chpl 1.31.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5-m.chpl 104ms 1.5ms 28.3MB 190ms 0ms chpl 1.31.0
crystal 2.cr 536ms 2.9ms 3.5MB 450ms 73ms crystal 1.16.3
crystal 1.cr 678ms 2.3ms 14.6MB 570ms 97ms crystal 1.16.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 5.chpl 21ms 0.7ms 28.4MB 20ms 0ms chpl 1.31.0
crystal 2.cr 58ms 0.7ms 3.5MB 40ms 10ms crystal 1.16.3
crystal 1.cr 73ms 1.4ms 4.9MB 50ms 7ms crystal 1.16.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1.9ms 0.2ms 2.9MB 0ms 0ms crystal 1.16.3
chapel 1.chpl 9.3ms 1.5ms 28.8MB 0ms 0ms chpl 1.31.0

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3-m.chpl 747ms 5.4ms 87.2MB 1417ms 10ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3-m.chpl 113ms 1.0ms 87.0MB 200ms 0ms chpl 1.31.0

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 322ms 1.7ms 28.8MB 320ms 0ms chpl 1.31.0
crystal 2.cr 343ms 2.0ms 3.3MB 333ms 0ms crystal 1.16.3
crystal 1.cr 345ms 2.9ms 3.4MB 337ms 0ms crystal 1.16.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 38ms 1.3ms 3.3MB 30ms 0ms crystal 1.16.3
crystal 2.cr 38ms 0.6ms 3.3MB 30ms 0ms crystal 1.16.3
chapel 2.chpl 44ms 1.3ms 28.9MB 40ms 0ms chpl 1.31.0

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 444ms 0.7ms 30.4MB 440ms 0ms chpl 1.31.0
crystal 1.cr 1947ms 50ms 6.3MB 1917ms 20ms crystal 1.16.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 2.chpl 113ms 1.8ms 30.4MB 110ms 0ms chpl 1.31.0
crystal 1.cr 450ms 9.9ms 5.0MB 437ms 0ms crystal 1.16.3

regex-redux

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 1387ms 3.3ms 220.1MB 1343ms 40ms chpl 1.31.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 3.chpl 163ms 3.8ms 49.0MB 143ms 13ms chpl 1.31.0

secp256k1

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 1181ms 6.5ms 29.1MB 1177ms 0ms chpl 1.31.0

Input: 500

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1.chpl 307ms 4.2ms 29.1MB 303ms 0ms chpl 1.31.0

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 1922ms 11ms 29.0MB 3817ms 0ms chpl 1.31.0
chapel 1.chpl 3716ms 4.8ms 28.8MB 3710ms 0ms chpl 1.31.0
crystal 1.cr 3757ms 8.8ms 4.6MB 3743ms 0ms crystal 1.16.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 492ms 1.0ms 28.9MB 957ms 0ms chpl 1.31.0
chapel 1.chpl 940ms 1.7ms 28.8MB 940ms 0ms chpl 1.31.0
crystal 1.cr 942ms 1.3ms 4.4MB 930ms 0ms crystal 1.16.3

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
chapel 1-m.chpl 133ms 1.1ms 28.9MB 240ms 0ms chpl 1.31.0
crystal 1.cr 240ms 1.7ms 3.9MB 230ms 0ms crystal 1.16.3
chapel 1.chpl 246ms 3.6ms 28.8MB 240ms 0ms chpl 1.31.0