Programming Language and compiler
Benchmarks

Perl VS Swift benchmarks

Current benchmark data was generated on Mon Jun 23 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
swift 1.swift 2879ms 30ms 53.8MB 2850ms 17ms swift 6.1.2
perl 1.pl timeout 0.0ms 77.8MB 4963ms 27ms perl 5.40.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 243ms 4.6ms 11.8MB 233ms 0ms swift 6.1.2
perl 1.pl 1824ms 20ms 14.4MB 1807ms 3ms perl 5.40.2

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3-m.swift 140ms 1.8ms 20.7MB 400ms 3ms swift 6.1.2
perl 1.pl 3560ms 16ms 10.9MB 3543ms 0ms perl 5.40.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3.swift 38ms 0.4ms 14.2MB 30ms 0ms swift 6.1.2
perl 1.pl 367ms 3.4ms 6.6MB 353ms 0ms perl 5.40.2

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 2.2ms 0.2ms 5.9MB 0ms 0ms swift 6.1.2
perl 1.pl 2.6ms 0.2ms 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
swift 7.swift 345ms 2.1ms 10.3MB 337ms 0ms swift 6.1.2
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
swift 7.swift 39ms 1.0ms 10.1MB 30ms 0ms swift 6.1.2
perl 2.pl 2829ms 163ms 6.1MB 2820ms 0ms perl 5.40.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
perl 4.pl timeout 0.0ms 9.9MB 19817ms 10ms perl 5.40.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
perl 4.pl timeout 0.0ms 10.1MB 19537ms 10ms perl 5.40.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
perl 4-m.pl 3441ms 7.2ms 9.5MB 13347ms 3ms perl 5.40.2