Programming Language and compiler
Benchmarks

Swift VS Crystal benchmarks

Current benchmark data was generated on Wed Jan 22 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 1316ms 80ms 64.1MB 1290ms 10ms crystal 1.15.0
swift 1.swift 2911ms 5.8ms 53.9MB 2883ms 17ms swift 6.0.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 110ms 9.3ms 10.9MB 100ms 0ms crystal 1.15.0
swift 1.swift 239ms 4.8ms 12.0MB 220ms 0ms swift 6.0.3

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 2463ms 9.5ms 5.6MB 2450ms 0ms swift 6.0.3
crystal 1.cr 2495ms 6.5ms 2.8MB 2483ms 0ms crystal 1.15.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 205ms 1.5ms 2.8MB 193ms 0ms crystal 1.15.0
swift 1.swift 212ms 2.8ms 5.6MB 200ms 0ms swift 6.0.3

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3-m.swift 140ms 3.0ms 24.8MB 380ms 3ms swift 6.0.3
crystal 2.cr 573ms 3.5ms 3.5MB 450ms 107ms crystal 1.15.0
crystal 1.cr 720ms 0.6ms 14.6MB 573ms 127ms crystal 1.15.0

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3.swift 37ms 0.2ms 18.1MB 33ms 0ms swift 6.0.3
crystal 2.cr 61ms 1.2ms 3.5MB 43ms 7ms crystal 1.15.0
crystal 1.cr 76ms 0.8ms 4.9MB 53ms 7ms crystal 1.15.0

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 1.15.0
swift 1.swift 2.3ms 0.2ms 6.0MB 0ms 0ms swift 6.0.3

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 1401ms 19ms 72.6MB 5030ms 33ms swift 6.0.3

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 262ms 2.8ms 63.8MB 687ms 20ms swift 6.0.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 342ms 2.4ms 3.3MB 330ms 0ms crystal 1.15.0
crystal 2.cr 342ms 1.6ms 3.3MB 330ms 0ms crystal 1.15.0
swift 7.swift 344ms 2.5ms 9.8MB 330ms 0ms swift 6.0.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 2.cr 37ms 0.7ms 3.3MB 23ms 0ms crystal 1.15.0
crystal 1.cr 38ms 1.4ms 3.3MB 30ms 0ms crystal 1.15.0
swift 7.swift 39ms 1.1ms 9.8MB 30ms 0ms swift 6.0.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 1907ms 10ms 6.2MB 1877ms 13ms crystal 1.15.0
swift 1.swift timeout 0.0ms 7.1MB 4907ms 77ms swift 6.0.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
crystal 1.cr 449ms 18ms 5.1MB 430ms 0ms crystal 1.15.0
swift 1.swift 1861ms 13ms 6.9MB 1840ms 3ms swift 6.0.3