Programming Language and compiler
Benchmarks

Swift VS V benchmarks

Current benchmark data was generated on Tue Mar 25 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
v 1.v 826ms 7.1ms 22.1MB 813ms 0ms v/clang+gc 0.4.10
v 1.v 2249ms 23ms 2086.6MB 1327ms 910ms v/clang 0.4.10
swift 1.swift 2950ms 76ms 53.9MB 2917ms 20ms swift 6.0.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 72ms 1.3ms 4.6MB 60ms 0ms v/clang+gc 0.4.10
v 1.v 212ms 3.0ms 197.1MB 120ms 77ms v/clang 0.4.10
swift 1.swift 237ms 1.1ms 11.9MB 227ms 0ms swift 6.0.3

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 2201ms 3.6ms 1.9MB 2193ms 0ms v/clang+gc 0.4.10
v 1.v 2314ms 95ms 1.1MB 2303ms 0ms v/clang 0.4.10
swift 1.swift 2483ms 17ms 5.6MB 2473ms 0ms swift 6.0.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 188ms 1.5ms 1.9MB 180ms 0ms v/clang+gc 0.4.10
v 1.v 193ms 2.3ms 1.1MB 180ms 0ms v/clang 0.4.10
swift 1.swift 214ms 1.8ms 6.3MB 207ms 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 1.1ms 20.9MB 387ms 0ms swift 6.0.3
v 1.v 498ms 0.7ms 1.3MB 490ms 0ms v/clang 0.4.10
v 1.v 529ms 10ms 2.1MB 517ms 0ms v/clang+gc 0.4.10

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
swift 3.swift 36ms 0.3ms 18.3MB 30ms 0ms swift 6.0.3
v 1.v 53ms 1.2ms 1.3MB 47ms 0ms v/clang 0.4.10
v 1.v 56ms 0.4ms 2.1MB 50ms 0ms v/clang+gc 0.4.10

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 1.2ms 0.3ms 1.4MB 0ms 0ms v/clang 0.4.10
v 1.v 1.4ms 0.1ms 1.9MB 0ms 0ms v/clang+gc 0.4.10
swift 1.swift 2.5ms 0.2ms 5.9MB 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 1390ms 6.6ms 74.5MB 5083ms 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 263ms 1.7ms 60.0MB 693ms 23ms swift 6.0.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 312ms 1.6ms 1.6MB 303ms 0ms v/clang 0.4.10
v 1.v 313ms 2.4ms 2.3MB 303ms 0ms v/clang+gc 0.4.10
swift 7.swift 345ms 1.2ms 9.8MB 340ms 0ms swift 6.0.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 1.v 34ms 0.4ms 1.6MB 27ms 0ms v/clang 0.4.10
v 1.v 34ms 0.5ms 2.3MB 30ms 0ms v/clang+gc 0.4.10
swift 7.swift 40ms 0.2ms 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
v 2.v 3155ms 20ms 3.3MB 3133ms 7ms v/clang+gc 0.4.10
swift 1.swift timeout 0.0ms 7.1MB 4910ms 70ms swift 6.0.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
v 2.v 782ms 3.8ms 2.6MB 773ms 0ms v/clang+gc 0.4.10
swift 1.swift 1877ms 8.7ms 7.0MB 1863ms 0ms swift 6.0.3