Programming Language and compiler
Benchmarks

Results for 38 of 40 languages from this run on actest1.

Unavailable in this run: Hack, Lisp. Follow the run link for failure details.

Julia VS Swift benchmarks

Current benchmark data was generated on Sun Sep 27 2026, full log can be found HERE

CONTRIBUTIONS are WELCOME!

[x86_64][4 cores] Intel(R) Core(TM) i7-3687U CPU @ 2.10GHz (Model 58)

* -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
julia 4.jl 1258ms 4.8ms 271.5MB 1430ms 57ms julia 1.11.9
swift 1.swift 4602ms 12ms 53.9MB 4573ms 10ms swift 6.1.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 4.jl 359ms 19ms 274.0MB 420ms 63ms julia 1.11.9
swift 1.swift 395ms 8.4ms 11.8MB 373ms 0ms swift 6.1.3

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 2-m.jl 1550ms 12ms 258.8MB 4867ms 43ms julia 1.11.9
swift 1.swift 2632ms 45ms 5.7MB 2617ms 0ms swift 6.1.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 226ms 3.4ms 5.7MB 210ms 0ms swift 6.1.3
julia 2-m.jl 746ms 6.3ms 265.5MB 1783ms 53ms julia 1.11.9

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3-m.swift 253ms 4.8ms 23.1MB 573ms 13ms swift 6.1.3
julia 7-m.jl 779ms 32ms 301.9MB 1830ms 90ms julia 1.11.9

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3.swift 54ms 1.7ms 16.7MB 47ms 3ms swift 6.1.3
julia 7-m.jl 639ms 5.9ms 262.4MB 1400ms 70ms julia 1.11.9

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 1.swift 3.0ms 0.3ms 6.8MB 0ms 0ms swift 6.1.3
julia 1.jl 140ms 4.0ms 226.2MB 106ms 48ms julia 1.11.9

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 2303ms 20ms 75.6MB 8380ms 40ms swift 6.1.3
julia 8-m.jl 2502ms 43ms 314.2MB 4443ms 80ms julia 1.11.9

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 2-m.swift 465ms 44ms 60.7MB 1023ms 27ms swift 6.1.3
julia 8-m.jl 1884ms 2.6ms 305.9MB 2873ms 70ms julia 1.11.9

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 7.swift 576ms 3.9ms 10.5MB 563ms 0ms swift 6.1.3
julia 7.jl 902ms 17ms 271.9MB 960ms 67ms julia 1.11.9

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 7.swift 71ms 8.8ms 10.4MB 60ms 0ms swift 6.1.3
julia 7.jl 585ms 2.5ms 275.1MB 660ms 47ms julia 1.11.9

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 1.jl 664ms 3.2ms 250.6MB 710ms 47ms julia 1.11.9

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 1.jl 410ms 1.6ms 247.9MB 453ms 47ms julia 1.11.9

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 3.jl 812ms 13ms 233.8MB 913ms 43ms julia 1.11.9
julia 1.jl 1519ms 35ms 287.5MB 1510ms 140ms julia 1.11.9
swift 1.swift 12008ms 57ms 8.3MB 11833ms 153ms swift 6.1.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 3.jl 375ms 2.7ms 233.9MB 423ms 40ms julia 1.11.9
julia 1.jl 822ms 14ms 288.4MB 853ms 93ms julia 1.11.9
swift 1.swift 2719ms 13ms 8.0MB 2697ms 3ms swift 6.1.3

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 2-m.jl 3585ms 4.8ms 243.3MB 13187ms 50ms julia 1.11.9
julia 3-m.jl 3821ms 2.0ms 273.2MB 13607ms 63ms julia 1.11.9

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 2-m.jl 1217ms 7.1ms 249.3MB 3887ms 53ms julia 1.11.9
julia 3-m.jl 1456ms 8.8ms 274.6MB 4257ms 63ms julia 1.11.9

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
julia 2-m.jl 643ms 4.4ms 241.6MB 1620ms 37ms julia 1.11.9
julia 3-m.jl 868ms 12ms 279.5MB 1930ms 70ms julia 1.11.9