Programming Language and compiler
Benchmarks

Swift VS Kotlin benchmarks

Current benchmark data was generated on Tue Dec 31 2024, 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
kotlin 1.kt 455ms 16ms 575.5MB 540ms 63ms kotlin/jvm 21
swift 1.swift 2431ms 13ms 54.0MB 2407ms 7ms swift 6.0.3
kotlin 1-m.kt 2928ms 6.8ms 248.5MB 4967ms 627ms kotlin/native 1.8.21

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 95ms 2.4ms 158.2MB 103ms 23ms kotlin/jvm 21
swift 1.swift 222ms 2.8ms 11.8MB 210ms 0ms swift 6.0.3
kotlin 1-m.kt 257ms 6.2ms 32.6MB 400ms 63ms kotlin/native 1.8.21

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 2350ms 22ms 5.6MB 2337ms 0ms swift 6.0.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 199ms 1.9ms 5.6MB 190ms 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 135ms 5.7ms 24.6MB 367ms 7ms swift 6.0.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3.swift 35ms 0.4ms 18.3MB 33ms 0ms swift 6.0.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 2.3ms 0.2ms 4.7MB 0ms 0ms kotlin/native 1.8.21
swift 1.swift 2.4ms 0.2ms 6.0MB 0ms 0ms swift 6.0.3
kotlin 1.kt 55ms 4.2ms 47.4MB 46ms 14ms kotlin/jvm 21

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 1324ms 22ms 74.6MB 4820ms 30ms 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 250ms 3.1ms 63.8MB 653ms 30ms swift 6.0.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 7.swift 329ms 4.6ms 9.6MB 317ms 0ms swift 6.0.3
kotlin 1n.kt 386ms 8.6ms 4.7MB 373ms 0ms kotlin/native 1.8.21
kotlin 1.kt 422ms 3.5ms 49.7MB 463ms 13ms kotlin/jvm 21

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 7.swift 37ms 0.6ms 9.8MB 23ms 0ms swift 6.0.3
kotlin 1n.kt 43ms 0.8ms 4.6MB 30ms 0ms kotlin/native 1.8.21
kotlin 1.kt 112ms 0.7ms 49.4MB 150ms 17ms kotlin/jvm 21

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1.kt 3505ms 35ms 353.8MB 4313ms 93ms kotlin/jvm 21
kotlin 1n.kt timeout 0.0ms 7.5MB 6350ms 310ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 13.3MB 4990ms 177ms kotlin/native 1.8.21
swift 1.swift timeout 0.0ms 7.4MB 4913ms 70ms swift 6.0.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
kotlin 1-m.kt 939ms 37ms 355.0MB 1617ms 70ms kotlin/jvm 21
swift 1.swift 1766ms 11ms 6.9MB 1753ms 0ms swift 6.0.3
kotlin 1n.kt timeout 0.0ms 7.4MB 6420ms 257ms kotlin/native 1.8.21
kotlin 2n.kt timeout 0.0ms 8.2MB 5000ms 150ms kotlin/native 1.8.21