# File lib/facter/util/memory.rb, line 8
 8:   def self.meminfo_number(tag)
 9:     memsize = ""
10:     Thread::exclusive do
11:       size, scale = [0, ""]
12:       File.readlines("/proc/meminfo").each do |l|
13:         size, scale = [$1.to_f, $2] if l =~ /^#{tag}:\s+(\d+)\s+(\S+)/
14:         # MemoryFree == memfree + cached + buffers
15:         #  (assume scales are all the same as memfree)
16:         if tag == "MemFree" &&
17:           l =~ /^(?:Buffers|Cached):\s+(\d+)\s+(?:\S+)/
18:           size += $1.to_f
19:         end
20:       end
21:       memsize = scale_number(size, scale)
22:     end
23: 
24:     memsize
25:   end