benchmark-native.rb

#!/usr/bin/env ruby
$: << File.expand_path('lib')
require 'grit'
Grit::Git.git_timeout = 0
git = Grit::Git.new(Dir.pwd)

# make sure these things happen before the tests run
Grit::Git.git_binary
git.can_fork?

require 'benchmark'
include Benchmark

bm(30) do |measure|
  measure.report("sh") {
    1000.times {
      git.run('', 'rev-parse', '', {:verify => true}, ['HEAD'])
    }
  }
  measure.report("execute") {
    1000.times {
      git.native(:rev_parse, {:verify => true}, 'HEAD')
    }
  }
end