Programming Language and compiler
Benchmarks

Perl 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
perl 1.pl timeout 0.0ms 77.8MB 4960ms 27ms perl 5.40.2

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
perl 1.pl 1815ms 12ms 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 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
perl 1.pl 3556ms 18ms 10.9MB 3543ms 0ms perl 5.40.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
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
perl 1.pl 367ms 3.7ms 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 2.6ms 0.3ms 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 2.0ms 3.3MB 333ms 0ms crystal 1.16.3
crystal 1.cr 345ms 2.9ms 3.4MB 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 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
perl 2.pl 2719ms 106ms 6.1MB 2707ms 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 8.8ms 4.6MB 3743ms 0ms crystal 1.16.3
perl 4.pl timeout 0.0ms 9.9MB 19830ms 0ms perl 5.40.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 942ms 1.3ms 4.4MB 930ms 0ms crystal 1.16.3
perl 4.pl timeout 0.0ms 10.0MB 19553ms 10ms perl 5.40.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 240ms 1.7ms 3.9MB 230ms 0ms crystal 1.16.3
perl 4-m.pl 3429ms 2.4ms 9.5MB 13317ms 7ms perl 5.40.2