# File lib/facter/util/memory.rb, line 43
  def self.vmstat_find_free_memory()
    row = Facter::Util::Resolution.exec('vmstat').split("\n")[-1]
    if row =~ /^\s*\d+\s*\d+\s*\d+\s*\d+\s*(\d+)/
      Facter.add("MemoryFree") do
        memfree = $1
        setcode do
          Facter::Memory.scale_number(memfree.to_f, "kB")
        end
      end
    end
  end