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.

Fortran VS Ruby 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.)

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

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

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