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 Codon 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

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

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
codon 1.py 9.9ms 0.8ms 10.9MB 7ms 3ms codon 0.20.2

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
codon 1.py 2621ms 35ms 11.0MB 2900ms 0ms codon 0.20.2

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
codon 1-m.py 357ms 59ms 11.0MB 610ms 0ms codon 0.20.2

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

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

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