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.

Ruby VS Fortran 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
ruby 1.rb 11360ms 112ms 87.8MB 11283ms 57ms ruby 3.2.3
ruby 1.rb 11813ms 6.3ms 87.9MB 11740ms 57ms ruby/yjit 3.2.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 1118ms 12ms 30.2MB 1087ms 17ms ruby 3.2.3
ruby 1.rb 1172ms 15ms 30.3MB 1137ms 20ms ruby/yjit 3.2.3

coro-prime-sieve

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 7971ms 44ms 73.0MB 7883ms 63ms ruby/yjit 3.2.3
ruby 1.rb 8086ms 166ms 73.1MB 7980ms 83ms ruby 3.2.3

Input: 1000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 359ms 10ms 34.9MB 317ms 27ms ruby/yjit 3.2.3
ruby 1.rb 362ms 11ms 34.9MB 317ms 30ms ruby 3.2.3

fasta

Input: 2500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 4.f90 177ms 14ms 1.5MB 167ms 0ms gfortran 13.3.0
ruby 6.rb 5551ms 66ms 33.6MB 5523ms 13ms ruby 3.2.3
ruby 6.rb 5694ms 44ms 33.6MB 5653ms 23ms ruby/yjit 3.2.3

Input: 250000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 4.f90 23ms 3.7ms 2.7MB 13ms 0ms gfortran 13.3.0
ruby 6.rb 621ms 1.8ms 25.0MB 597ms 7ms ruby 3.2.3
ruby 6.rb 651ms 3.1ms 24.9MB 620ms 17ms ruby/yjit 3.2.3

helloworld

Input: QwQ

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 1.f90 1.7ms 0.3ms 1.6MB 0ms 0ms gfortran 13.3.0
ruby 1.rb 85ms 4.7ms 22.6MB 64ms 12ms ruby/yjit 3.2.3
ruby 1.rb 95ms 7.0ms 22.5MB 62ms 18ms ruby 3.2.3

json-serde

Input: sample 5000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 490ms 4.8ms 44.0MB 457ms 23ms ruby 3.2.3
ruby 1.rb 502ms 10ms 44.5MB 470ms 20ms ruby/yjit 3.2.3

Input: canada 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 4199ms 14ms 165.3MB 4103ms 80ms ruby 3.2.3
ruby 1.rb 4309ms 50ms 165.6MB 4203ms 87ms ruby/yjit 3.2.3

lru

Input: 1000 1000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 861ms 5.6ms 22.8MB 833ms 17ms ruby 3.2.3
ruby 1.rb 879ms 15ms 22.7MB 860ms 7ms ruby/yjit 3.2.3

Input: 1000 3000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 2450ms 53ms 22.8MB 2420ms 13ms ruby/yjit 3.2.3
ruby 1.rb 2468ms 49ms 22.8MB 2437ms 13ms ruby 3.2.3

Input: 100 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 474ms 9.8ms 22.8MB 447ms 13ms ruby/yjit 3.2.3
ruby 1.rb 482ms 2.1ms 22.8MB 457ms 10ms ruby 3.2.3

merkletrees

Input: 17

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 27746ms 105ms 103.9MB 27650ms 80ms ruby 3.2.3
ruby 1.rb 27918ms 153ms 104.0MB 27813ms 87ms ruby/yjit 3.2.3

Input: 15

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 6147ms 56ms 44.0MB 6087ms 47ms ruby/yjit 3.2.3
ruby 1.rb 6156ms 36ms 44.0MB 6097ms 43ms ruby 3.2.3

nbody

Input: 5000000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 2.f90 610ms 47ms 1.5MB 600ms 0ms gfortran 13.3.0
ruby 2.rb 46837ms 1570ms 22.6MB 46803ms 13ms ruby 3.2.3
ruby 2.rb 47090ms 429ms 22.5MB 47053ms 13ms ruby/yjit 3.2.3

Input: 500000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 2.f90 65ms 1.1ms 1.6MB 57ms 0ms gfortran 13.3.0
ruby 2.rb 4685ms 47ms 22.6MB 4660ms 7ms ruby/yjit 3.2.3
ruby 2.rb 4697ms 102ms 22.5MB 4673ms 10ms ruby 3.2.3

nsieve

Input: 12

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 25887ms 459ms 493.1MB 25683ms 183ms ruby 3.2.3
ruby 1.rb 25973ms 509ms 493.0MB 25737ms 220ms ruby/yjit 3.2.3

Input: 10

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 6454ms 102ms 141.4MB 6377ms 63ms ruby 3.2.3
ruby 1.rb 6477ms 132ms 141.4MB 6400ms 63ms ruby/yjit 3.2.3

pidigits

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 11411ms 21ms 122.0MB 11350ms 40ms ruby 3.2.3
ruby 1.rb 11438ms 47ms 123.6MB 11370ms 57ms ruby/yjit 3.2.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
ruby 1.rb 2813ms 16ms 124.1MB 2747ms 47ms ruby 3.2.3
ruby 1.rb 2836ms 11ms 123.9MB 2773ms 43ms ruby/yjit 3.2.3

spectral-norm

Input: 8000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 3-m.f90 6051ms 7.3ms 1.5MB 23903ms 3ms gfortran 13.3.0
fortran 2.f90 11153ms 19ms 2.5MB 11143ms 0ms gfortran 13.3.0
ruby 4.rb timeout (300s) — — — — ruby 3.2.3
ruby 4.rb timeout (300s) — — — — ruby/yjit 3.2.3

Input: 4000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 3-m.f90 1522ms 3.5ms 1.5MB 5970ms 3ms gfortran 13.3.0
fortran 2.f90 2795ms 3.4ms 1.6MB 2783ms 0ms gfortran 13.3.0
ruby 4.rb 108151ms 898ms 24.1MB 108120ms 10ms ruby 3.2.3
ruby 4.rb timeout (120s) — — — — ruby/yjit 3.2.3

Input: 2000

lang code time stddev peak-mem mem time(user) time(sys) compiler compiler/runtime
fortran 3-m.f90 391ms 2.4ms 1.6MB 1477ms 0ms gfortran 13.3.0
fortran 2.f90 703ms 3.3ms 1.5MB 687ms 0ms gfortran 13.3.0
ruby 4.rb 27651ms 1140ms 23.4MB 27623ms 10ms ruby/yjit 3.2.3
ruby 4.rb 28446ms 2206ms 23.3MB 28410ms 13ms ruby 3.2.3