Arvados

#!/usr/bin/env ruby

require 'yajl'

suffixes = {}

"bkmgt".each_char.each_with_index do |suffix, exp|

  suffixes[suffix.upcase] = suffixes[suffix] = 1024 ** exp

end

last_size_char = ARGV[0][-1]

if input_mult = suffixes[last_size_char]

  input_size = ARGV[0][0...-1].to_i * input_mult

else

  input_size = ARGV[0].to_i

end

input_s = "x" * input_size

output_json = Yajl::Encoder.encode(input_s)

puts "Input: %9d kB" % (input_size / 1024)

open("/proc/self/status").each_line do |line|

  print line if (line =~ /^VmPeak:/)

end