Total is a Ruby gem to detect the total amount of memory in the system.

First, install it:

$ gem install total

Then, use it like this:

require 'total'
puts Total::Mem.new.bytes

The following platforms are supported:

• MacOSX
• Linux
• FreeBSD
• Windows (help wanted)

If the platform is not recognized or is not supported, Total::CantDetect exception will be raised. You should catch it and proceed accordingly, for example:

def total_mb
  Total::Mem.new.bytes / (1024 * 1024)
rescue Total::CantDetect
  512
end

This code will return the actual memory size in Mb, if it can be detected, or 512 otherwise.

That's it.

Read these guidelines. Make sure you build is green before you contribute your pull request. You will need to have Ruby 2.3+ and Bundler installed. Then:

$ bundle update
$ bundle exec rake

If it's clean and you don't see any error messages, submit your pull request.