Class: MemInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/mem_info.rb

Instance Method Summary collapse

Instance Method Details

#mem_total ⇒ Object

Total memory in kb. On Mac OS uses “sysctl”, elsewhere expects the system has /proc/meminfo. Returns nil if it cannot be determined.



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# File 'lib/mem_info.rb', line 6

def mem_total
  @mem_total ||=
    begin
      system = `uname`.strip
      if system == "Darwin"
        s = `sysctl -n hw.memsize`.strip
        s.to_i / 1.kilobyte
      else
        s = `grep MemTotal /proc/meminfo`
        /(\d+)/.match(s)[0].try(:to_i)
      end
    rescue StandardError
      nil
    end
end