Programming Language and compiler
Benchmarks

Perl VS Crystal benchmarks

Current benchmark data was generated on Fri Aug 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 1231ms 8.3ms 64.2MB 1203ms 10ms crystal 1.17.0
perl 1.pl timeout 0.0ms 77.8MB 4960ms 23ms perl 5.40.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 104ms 1.6ms 11.0MB 90ms 0ms crystal 1.17.0
perl 1.pl 1828ms 6.1ms 14.4MB 1813ms 0ms perl 5.40.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 540ms 2.0ms 3.6MB 450ms 77ms crystal 1.17.0
crystal 1.cr 681ms 2.0ms 14.6MB 570ms 97ms crystal 1.17.0
perl 1.pl 3986ms 706ms 10.9MB 3973ms 0ms perl 5.40.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 57ms 0.8ms 3.6MB 40ms 0ms crystal 1.17.0
crystal 1.cr 72ms 0.8ms 4.4MB 53ms 7ms crystal 1.17.0
perl 1.pl 369ms 7.7ms 6.6MB 360ms 0ms perl 5.40.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1.9ms 0.1ms 2.9MB 0ms 0ms crystal 1.17.0
perl 1.pl 2.4ms 0.1ms 5.1MB 0ms 0ms perl 5.40.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 345ms 2.9ms 3.4MB 337ms 0ms crystal 1.17.0
crystal 1.cr 346ms 3.1ms 3.4MB 337ms 0ms crystal 1.17.0
perl 2.pl timeout 0.0ms 6.1MB 4990ms 0ms perl 5.40.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 37ms 0.5ms 3.4MB 30ms 0ms crystal 1.17.0
crystal 1.cr 39ms 0.1ms 3.4MB 30ms 0ms crystal 1.17.0
perl 2.pl 2772ms 20ms 6.1MB 2760ms 0ms perl 5.40.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 3758ms 11ms 4.5MB 3750ms 0ms crystal 1.17.0
perl 4.pl timeout 0.0ms 9.8MB 19817ms 7ms perl 5.40.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 941ms 1.2ms 4.5MB 930ms 0ms crystal 1.17.0
perl 4.pl timeout 0.0ms 10.0MB 19533ms 7ms perl 5.40.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 242ms 3.7ms 3.9MB 233ms 0ms crystal 1.17.0
perl 4-m.pl 3437ms 29ms 9.6MB 13277ms 10ms perl 5.40.2