Benchmarks your CS 107 assignment against the solution

bench.rb

#!/usr/bin/env ruby

require 'open3'

# Ruby doesn't realize how AFS works and is thus complaining about the
# executable it's running being world writable.
# It complains to stderr, so just suppress that.
$stderr.reopen('/dev/null', 'w')

def test(command)
  a,b,stderr = Open3.popen3 command
  stderr.read =~ /(\d+:\d+\.\d+)elapsed/
  $1
end

ARGV.each do |file|
  them = test "time /usr/class/cs107/samples/assign1/reassemble_soln #{file}"
  us = test "time ./reassemble #{file}"
  puts file, "them: #{them}", "us:   #{us}"
end