Method: LinuxStat::Memory.stat

Defined in:
lib/linux_stat/memory.rb

.stat ⇒ Object

Returns the memory details reported by /proc/meminfo. In this format:

{:total=>3836264, :used=>3097952, :available=>738312, :percent_used=>80.75, :percent_available=>19.25}

The values are in Kilobyte.

If the statistics is not available, it will return an empty Hash.



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# File 'lib/linux_stat/memory.rb', line 13

def stat
	return {} unless meminfo?

	memory = IO.foreach('/proc/meminfo'.freeze).first(3)

	total = memory[0].split[1].to_i
	available = memory[2].split[1].to_i
	used = total - available

	percent_used = total == 0 ? 0.0 : used.*(100).fdiv(total).round(2)
	percent_available = total == 0 ? 0.0 : available.*(100).fdiv(total).round(2)

	# We have all the methods, but each methods reads the same file
	#
	# So better to use the above calculation
	{
		total: total,
		used: used,
		available: available,
		percent_used: percent_used,
		percent_available: percent_available
	}
end