Programming Language and compiler
Benchmarks

Zig VS Ruby benchmarks

Current benchmark data was generated on Mon Mar 31 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
zig 1.zig 1822ms 94ms 49.0MB 1787ms 20ms zig 0.14.0
ruby 1.rb 4874ms 16ms 109.4MB 4770ms 90ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 70.1MB 4937ms 43ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 793.7MB 6597ms 650ms truffleruby 24.2.0

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 154ms 1.6ms 7.0MB 140ms 0ms zig 0.14.0
ruby 1.rb 494ms 2.7ms 20.3MB 470ms 10ms ruby/yjit 3.4.2
ruby 1-m.rb 575ms 60ms 422.2MB 1147ms 167ms truffleruby 24.2.0
ruby 1.rb 937ms 6.7ms 19.6MB 910ms 13ms ruby 3.4.2

edigits

Input: 250001

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 2250ms 2.7ms 2.5MB 2220ms 13ms zig 0.14.0

Input: 100000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 380ms 1.3ms 1.9MB 360ms 0ms zig 0.14.0

fannkuch-redux

Input: 11

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 634ms 1.8ms 1.4MB 2393ms 0ms zig 0.14.0
zig 3-i.zig 1767ms 0.8ms 1.0MB 1760ms 0ms zig 0.14.0
zig 1.zig 2716ms 0.8ms 1.0MB 2710ms 0ms zig 0.14.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 2-m.zig 60ms 0.8ms 1.4MB 200ms 0ms zig 0.14.0
zig 3-i.zig 147ms 0.6ms 1.0MB 140ms 0ms zig 0.14.0
zig 1.zig 229ms 0.5ms 1.0MB 220ms 0ms zig 0.14.0

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 89ms 0.3ms 1.0MB 80ms 0ms zig 0.14.0
ruby 6.rb 2060ms 10ms 23.0MB 2030ms 13ms ruby/yjit 3.4.2
ruby 6-m.rb 2165ms 97ms 405.7MB 5593ms 363ms truffleruby 24.2.0
ruby 6.rb 3848ms 36ms 22.5MB 3820ms 10ms ruby 3.4.2

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 11ms 0.8ms 1.1MB 0ms 0ms zig 0.14.0
ruby 6.rb 266ms 4.3ms 15.0MB 247ms 10ms ruby/yjit 3.4.2
ruby 6.rb 437ms 2.4ms 14.5MB 420ms 7ms ruby 3.4.2
ruby 6-m.rb 815ms 10ms 363.4MB 2020ms 177ms truffleruby 24.2.0

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 1.0ms 0.0ms 1.0MB 0ms 0ms zig 0.14.0
ruby 1.rb 35ms 0.4ms 142.2MB 14ms 28ms truffleruby 24.2.0
ruby 1.rb 52ms 3.5ms 12.9MB 34ms 2ms ruby 3.4.2
ruby 1.rb 53ms 0.9ms 13.0MB 34ms 6ms ruby/yjit 3.4.2

knucleotide

Input: 2500000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 499ms 8.5ms 26.3MB 477ms 7ms zig 0.14.0

Input: 250000_in

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 66ms 2.2ms 15.4MB 53ms 3ms zig 0.14.0

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 34ms 0.8ms 2.8MB 27ms 0ms zig 0.14.0
ruby 1.rb 338ms 2.7ms 13.5MB 320ms 7ms ruby/yjit 3.4.2
ruby 1.rb 534ms 7.9ms 13.0MB 517ms 7ms ruby 3.4.2
ruby 1-m.rb 679ms 33ms 375.8MB 1217ms 147ms truffleruby 24.2.0

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 92ms 0.9ms 2.8MB 83ms 0ms zig 0.14.0
ruby 1.rb 880ms 3.0ms 13.5MB 857ms 7ms ruby/yjit 3.4.2
ruby 1-m.rb 1252ms 51ms 416.2MB 1803ms 183ms truffleruby 24.2.0
ruby 1.rb 1490ms 12ms 13.0MB 1470ms 7ms ruby 3.4.2

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 16ms 0.7ms 1.3MB 10ms 0ms zig 0.14.0
ruby 1.rb 196ms 2.7ms 13.5MB 177ms 7ms ruby/yjit 3.4.2
ruby 1.rb 292ms 5.2ms 12.9MB 273ms 0ms ruby 3.4.2
ruby 1-m.rb 513ms 36ms 360.4MB 1000ms 140ms truffleruby 24.2.0

mandelbrot

Input: 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 247ms 2.2ms 4.0MB 237ms 0ms zig 0.14.0

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 12ms 0.4ms 1.1MB 0ms 0ms zig 0.14.0

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 855ms 3.1ms 41.0MB 827ms 13ms zig 0.14.0
ruby 1-m.rb 4071ms 251ms 628.9MB 10250ms 363ms truffleruby 24.2.0
ruby 1.rb timeout 0.0ms 94.3MB 4930ms 50ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 94.8MB 4937ms 50ms ruby/yjit 3.4.2

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 173ms 2.3ms 11.0MB 160ms 0ms zig 0.14.0
ruby 1-m.rb 2113ms 104ms 582.3MB 5393ms 277ms truffleruby 24.2.0
ruby 1.rb 3439ms 28ms 38.3MB 3403ms 23ms ruby/yjit 3.4.2
ruby 1.rb 4410ms 17ms 37.8MB 4373ms 23ms ruby 3.4.2

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 199ms 0.7ms 1.0MB 190ms 0ms zig 0.14.0
zig 2.zig 279ms 0.3ms 1.0MB 270ms 0ms zig 0.14.0
zig 1.zig 316ms 1.3ms 1.1MB 303ms 0ms zig 0.14.0
ruby 2.rb 830ms 8.7ms 322.7MB 1090ms 113ms truffleruby 24.2.0
ruby 2.rb timeout 0.0ms 12.9MB 4987ms 0ms ruby 3.4.2
ruby 2.rb timeout 0.0ms 13.5MB 4980ms 3ms ruby/yjit 3.4.2

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 3.zig 22ms 0.3ms 1.0MB 10ms 0ms zig 0.14.0
zig 2.zig 30ms 0.2ms 1.0MB 20ms 0ms zig 0.14.0
zig 1.zig 34ms 0.4ms 1.1MB 30ms 0ms zig 0.14.0
ruby 2-m.rb 310ms 2.6ms 310.1MB 543ms 113ms truffleruby 24.2.0
ruby 2.rb 1066ms 0.5ms 13.5MB 1047ms 3ms ruby/yjit 3.4.2
ruby 2.rb 2789ms 66ms 12.9MB 2773ms 0ms ruby 3.4.2

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 263ms 1.5ms 40.1MB 250ms 0ms zig 0.14.0
zig 2.zig 322ms 3.8ms 6.0MB 313ms 0ms zig 0.14.0
ruby 1.rb timeout 0.0ms 325.4MB 4847ms 140ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 327.0MB 4853ms 137ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 709.5MB 5073ms 150ms truffleruby 24.2.0

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 52ms 1.4ms 10.8MB 40ms 0ms zig 0.14.0
zig 2.zig 81ms 1.3ms 2.3MB 70ms 0ms zig 0.14.0
ruby 1-m.rb 1735ms 26ms 487.2MB 2477ms 167ms truffleruby 24.2.0
ruby 1.rb 3439ms 35ms 131.8MB 3347ms 77ms ruby/yjit 3.4.2
ruby 1.rb 4550ms 60ms 131.1MB 4463ms 77ms ruby 3.4.2

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 2465ms 18ms 2.2MB 2437ms 13ms zig 0.14.0
ruby 1.rb timeout 0.0ms 46.7MB 4923ms 67ms ruby 3.4.2
ruby 1.rb timeout 0.0ms 126.8MB 4890ms 100ms ruby/yjit 3.4.2
ruby 1.rb timeout 0.0ms 457.8MB 13330ms 427ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 569ms 2.6ms 1.6MB 560ms 0ms zig 0.14.0
ruby 1-m.rb 1582ms 157ms 399.4MB 4173ms 207ms truffleruby 24.2.0
ruby 1.rb 1703ms 3.1ms 46.2MB 1657ms 33ms ruby 3.4.2
ruby 1.rb 1706ms 60ms 127.5MB 1643ms 50ms ruby/yjit 3.4.2

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 3705ms 29ms 1.4MB 3693ms 0ms zig 0.14.0
ruby 4.rb timeout 0.0ms 13.0MB 4983ms 0ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.5MB 4980ms 3ms ruby/yjit 3.4.2
ruby 4.rb timeout 0.0ms 463.4MB 5177ms 250ms truffleruby 24.2.0

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 922ms 1.2ms 1.3MB 910ms 0ms zig 0.14.0
ruby 4.rb 4892ms 24ms 472.1MB 5177ms 213ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4980ms 0ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.6MB 4980ms 0ms ruby/yjit 3.4.2

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
zig 1.zig 234ms 0.8ms 1.3MB 223ms 0ms zig 0.14.0
ruby 4.rb 1453ms 12ms 389.8MB 1777ms 143ms truffleruby 24.2.0
ruby 4.rb timeout 0.0ms 13.0MB 4980ms 0ms ruby 3.4.2
ruby 4.rb timeout 0.0ms 13.8MB 4983ms 0ms ruby/yjit 3.4.2