svn/git init/commit performance

repo_bench.rb

require 'grit'
require 'svn/repos'

# Folders to store repos
GITREPOS = 'gitrepos'
SVNREPOS = 'svnrepos'

# Class for creating and commiting to svn repositories
class SvnRepo
  def initialize(repo_name)
    @path = File.join('svnrepos/', repo_name)
    Svn::Repos.create(@path, {})
    @repo = Svn::Repos.open(@path)
  end

  def commit
    # Create dummy file test.txt and commit it
    txn = @repo.fs.transaction
    file = 'text.txt'
    txn.root.make_file file
    stream = txn.root.apply_text(file)
    stream.write('hello world')
    stream.close
    @repo.commit(txn)
  end

  def close
    @repo.close
  end
end

# Class for creating and commiting to git repositories
class GitRepo
  def initialize(repo_name)
    @path = File.join('gitrepos/', repo_name)
    @repo = Grit::Repo.init_bare(@path)
  end

  def commit
    # Create dummy file test.txt and commit it
    File.open("#{@path}/test.txt", 'w') { |f| f.puts 'hello world' }
    Dir.chdir("#{@path}") { @repo.add('test.txt') }
    @repo.commit_index('add file')
  end
end

# Create folders to hold repos
FileUtils.mkdir SVNREPOS if !File.exists?(SVNREPOS)
FileUtils.mkdir GITREPOS if !File.exists?(GITREPOS)

# Create 10,000 svn repos
beginning_time = Time.now
(1..10000).each { |i| SvnRepo.new(i.to_s) }
end_time = Time.now
puts "Creating 10,000 svn repos: #{(end_time - beginning_time)*1000} ms"

# Create 10,000 git repos
beginning_time = Time.now
(1..10000).each { |i| GitRepo.new(i.to_s) }
end_time = Time.now
puts "Creating 10,000 git repos: #{(end_time - beginning_time)*1000} ms"

# Create and commit test.txt to 10,000 svn repos
beginning_time = Time.now
(10001..20000).each do |i| 
  repo = SvnRepo.new(i.to_s)
  repo.commit
  repo.close
end
end_time = Time.now
puts "Creating and commiting to 10,000 svn repos: #{(end_time - beginning_time)*1000} ms"

# Create and commit test.txt to 10,000 git repos
beginning_time = Time.now
(10001..20000).each do |i|
  repo = GitRepo.new(i.to_s)
  repo.commit
end
end_time = Time.now
puts "Creating and commiting to 10,000 git repos: #{(end_time - beginning_time)*1000} ms"