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#######################################################################
# bench_dir.rb
#
# A series of benchmarks for the Dir class.
#######################################################################
require "benchmark"
MAX = 40000
PWD = Dir.pwd
Dir.rmdir('test_dir') if File.exists?('test_dir')
Benchmark.bm(30) do |x|
x.report("Dir.chdir"){
MAX.times{ Dir.chdir(PWD) }
}
x.report("Dir.chdir{}"){
MAX.times{ Dir.chdir(PWD){} }
}
x.report("Dir.mkdir & Dir.delete"){
MAX.times{ |n|
Dir.mkdir('test_dir')
Dir.delete('test_dir')
}
}
x.report("Dir.entries"){
MAX.times{ Dir.entries(PWD) }
}
x.report("Dir.foreach"){
MAX.times{ Dir.foreach(PWD){} }
}
x.report("Dir.getwd"){
MAX.times{ Dir.getwd }
}
x.report("Dir.glob('*')"){
MAX.times{ Dir["*"] }
}
x.report("Dir.glob('**/*')"){
MAX.times{ Dir["**/*"] }
}
x.report("Dir.new + Dir#close"){
MAX.times{
Dir.new(PWD).close
}
}
x.report("Dir.open"){
MAX.times{ Dir.open(PWD){} }
}
x.report("Dir#each"){
dir = Dir.new(PWD)
MAX.times{ dir.each{} }
dir.close
}
x.report("Dir#path"){
dir = Dir.new(PWD)
MAX.times{ dir.path }
dir.close
}
x.report("Dir#read + Dir#pos"){
dir = Dir.new(PWD)
MAX.times{
dir.read
dir.pos
}
dir.close
}
x.report("Dir#read + Dir#pos="){
dir = Dir.new(PWD)
MAX.times{
5.times{ dir.read }
dir.pos = 2
}
dir.close
}
x.report("Dir#read + Dir#rewind"){
dir = Dir.new(PWD)
MAX.times{
5.times{ dir.read }
dir.rewind
}
dir.close
}
end
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