Programming Language and compiler
Benchmarks

Swift VS D benchmarks

Current benchmark data was generated on Sun Dec 01 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
d 1.d 1733ms 100ms 312.5MB 1707ms 33ms ldc2 1.39.0
d 1.d 2677ms 15ms 314.4MB 2853ms 47ms dmd 2.109.1
swift 1.swift 2834ms 94ms 54.3MB 2803ms 13ms swift 6.0.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 157ms 1.1ms 208.7MB 130ms 13ms ldc2 1.39.0
swift 1.swift 229ms 2.2ms 12.5MB 217ms 0ms swift 6.0.2
d 1.d 235ms 9.2ms 209.9MB 203ms 13ms dmd 2.109.1

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 399ms 45ms 5.1MB 1410ms 0ms ldc2 1.39.0
d 2-im.d 1114ms 10ms 5.1MB 4297ms 0ms ldc2 1.39.0
d 1-i.d 1488ms 14ms 2.9MB 1480ms 0ms ldc2 1.39.0
swift 1.swift 2463ms 5.8ms 6.6MB 2453ms 0ms swift 6.0.2
d 1.d 3139ms 35ms 2.9MB 3130ms 0ms ldc2 1.39.0
d 2-i.d 3221ms 2.5ms 2.9MB 3210ms 0ms ldc2 1.39.0
d 1.d 3537ms 17ms 4.6MB 3523ms 0ms dmd 2.109.1
d 1-im.d 4241ms 40ms 8.9MB 16490ms 7ms dmd 2.109.1
d 1-i.d timeout 0.0ms 4.5MB 4987ms 0ms dmd 2.109.1
d 2-i.d timeout 0.0ms 4.6MB 4990ms 0ms dmd 2.109.1
d 2-im.d timeout 0.0ms 6.8MB 19780ms 7ms dmd 2.109.1

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-im.d 40ms 1.9ms 5.1MB 110ms 0ms ldc2 1.39.0
d 2-im.d 110ms 20ms 6.9MB 337ms 3ms ldc2 1.39.0
d 1-i.d 124ms 0.4ms 2.8MB 110ms 0ms ldc2 1.39.0
swift 1.swift 211ms 1.2ms 5.8MB 200ms 0ms swift 6.0.2
d 1.d 263ms 2.2ms 2.8MB 253ms 0ms ldc2 1.39.0
d 2-i.d 266ms 0.8ms 2.8MB 260ms 0ms ldc2 1.39.0
d 1.d 296ms 2.0ms 4.5MB 287ms 0ms dmd 2.109.1
d 1-im.d 359ms 0.1ms 8.9MB 1343ms 0ms dmd 2.109.1
d 2-im.d 545ms 24ms 6.8MB 1990ms 0ms dmd 2.109.1
d 1-i.d 860ms 8.9ms 4.5MB 850ms 0ms dmd 2.109.1
d 2-i.d 1389ms 18ms 4.5MB 1377ms 0ms dmd 2.109.1

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3-m.swift 145ms 2.8ms 25.0MB 413ms 10ms swift 6.0.2
d 1.d 196ms 1.3ms 33.2MB 177ms 7ms ldc2 1.39.0
d 1.d 620ms 0.6ms 51.0MB 610ms 0ms dmd 2.109.1

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 24ms 0.1ms 8.1MB 20ms 0ms ldc2 1.39.0
swift 3.swift 38ms 0.6ms 18.3MB 33ms 0ms swift 6.0.2
d 1.d 67ms 1.4ms 10.1MB 53ms 7ms dmd 2.109.1

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 1.4ms 0.8ms 3.0MB 0ms 0ms ldc2 1.39.0
d 1.d 2.2ms 0.4ms 5.0MB 0ms 0ms dmd 2.109.1
swift 1.swift 2.7ms 0.3ms 6.3MB 0ms 0ms swift 6.0.2

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 715ms 16ms 51.1MB 2293ms 20ms ldc2 1.39.0
swift 2-m.swift 1595ms 233ms 72.7MB 5200ms 33ms swift 6.0.2
d 1-m.d 1907ms 5.2ms 61.4MB 5853ms 10ms dmd 2.109.1

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1-m.d 127ms 22ms 43.7MB 313ms 7ms ldc2 1.39.0
d 1-m.d 223ms 7.0ms 43.9MB 627ms 17ms dmd 2.109.1
swift 2-m.swift 271ms 3.1ms 64.1MB 687ms 40ms swift 6.0.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 7.swift 347ms 7.9ms 10.0MB 333ms 0ms swift 6.0.2
d 2.d 360ms 1.4ms 2.8MB 347ms 0ms ldc2 1.39.0
d 1.d 360ms 1.1ms 2.9MB 350ms 0ms ldc2 1.39.0
d 1.d 679ms 3.1ms 4.6MB 667ms 0ms dmd 2.109.1
d 2.d 2034ms 49ms 4.6MB 2023ms 0ms dmd 2.109.1

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 39ms 0.2ms 2.9MB 30ms 0ms ldc2 1.39.0
d 2.d 39ms 0.1ms 2.8MB 30ms 0ms ldc2 1.39.0
swift 7.swift 41ms 0.1ms 10.1MB 30ms 0ms swift 6.0.2
d 1.d 71ms 0.3ms 4.6MB 60ms 0ms dmd 2.109.1
d 2.d 208ms 1.2ms 4.6MB 200ms 0ms dmd 2.109.1

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 2406ms 16ms 7.9MB 2367ms 377ms ldc2 1.39.0
d 1.d 4355ms 15ms 10.1MB 4377ms 377ms dmd 2.109.1
swift 1.swift timeout 0.0ms 7.5MB 4933ms 53ms swift 6.0.2

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
d 1.d 585ms 12ms 8.1MB 567ms 120ms ldc2 1.39.0
d 1.d 1036ms 3.9ms 10.2MB 1010ms 113ms dmd 2.109.1
swift 1.swift 1947ms 10ms 7.3MB 1933ms 0ms swift 6.0.2