Programming Language and compiler
Benchmarks

Perl VS Crystal benchmarks

Current benchmark data was generated on Sun Jul 13 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 1241ms 14ms 64.2MB 1213ms 13ms crystal 1.16.3
perl 1.pl timeout 0.0ms 77.8MB 4963ms 23ms perl 5.40.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 105ms 3.7ms 11.0MB 93ms 0ms crystal 1.16.3
perl 1.pl 1814ms 11ms 14.4MB 1800ms 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 534ms 3.4ms 3.6MB 443ms 73ms crystal 1.16.3
crystal 1.cr 676ms 1.2ms 14.6MB 570ms 93ms crystal 1.16.3
perl 1.pl 3699ms 175ms 10.9MB 3687ms 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 1.2ms 3.5MB 40ms 3ms crystal 1.16.3
crystal 1.cr 73ms 2.0ms 4.4MB 57ms 3ms crystal 1.16.3
perl 1.pl 365ms 1.2ms 6.6MB 357ms 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 0.2ms 2.9MB 0ms 0ms crystal 1.16.3
perl 1.pl 2.7ms 0.4ms 5.3MB 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 343ms 3.1ms 3.3MB 333ms 0ms crystal 1.16.3
crystal 1.cr 347ms 1.5ms 3.3MB 337ms 0ms crystal 1.16.3
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 1.cr 37ms 0.6ms 3.3MB 30ms 0ms crystal 1.16.3
crystal 2.cr 38ms 0.9ms 3.3MB 30ms 0ms crystal 1.16.3
perl 2.pl 2731ms 3.5ms 6.1MB 2723ms 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 3757ms 13ms 4.5MB 3747ms 0ms crystal 1.16.3
perl 4.pl timeout 0.0ms 10.0MB 19643ms 7ms perl 5.40.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 948ms 9.2ms 4.4MB 937ms 0ms crystal 1.16.3
perl 4.pl timeout 0.0ms 10.0MB 19530ms 3ms perl 5.40.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 238ms 1.0ms 3.9MB 230ms 0ms crystal 1.16.3
perl 4-m.pl 3449ms 32ms 9.4MB 13333ms 3ms perl 5.40.2