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The code performs a recursive fibonacci to the 47th position with the result of 2,971,215,073.

Fibonacci can be written many different ways. The goal of this project is to compare how each language handles the exact same code.

Here is the Ruby version:

def fib(n)
  return n if n <= 1
  fib(n - 1) + fib(n - 2)
end

puts fib(47)

Here is the Crystal version:

def fib(n)
  return n if n <= 1
  fib(n - 1) + fib(n - 2)
end

puts fib(47_u64)

Too keep a level playing field, only common "release" flags are used in the compilation step. This allows for compiler optimizations like inlining and constant propogation but removes anything considered dangerous i.e. bypassing out of bounds checks.

All tests are run on:

• AWS EC2 - m5.large 2 vCPU
• Processor: Intel Xeon 3.1Ghz
• Memory: 8 GiB
• OS: Ubuntu 20.04
• Docker Base Image: ubuntu:20.04

You can run the tests using Docker: docker run -it drujensen/fib

By default, it will compile and run all languages 5 times. Totals are calculated by adding the average compile and run times.

To only run a subset of the languages, provide a list of extensions and optionally the count:

docker run -it drujensen/fib ./run.sh s,c,cpp,go,rs,swift 5

To run in the background using nohup:

nohup docker run drujensen/fib:latest > results.txt 2>&1 &

Last benchmark was ran on January 18, 2022

All compilers are installed using apt or asdf on Ubuntu 20.04 docker image.