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#!/usr/bin/env ruby
require 'tempfile'
if ENV['RBVMOMI_COVERAGE'] == '1'
require 'simplecov'
SimpleCov.start
end
require 'rbvmomi'
require 'rbvmomi/deserialization'
require 'benchmark'
require 'libxml'
NS_XSI = 'http://www.w3.org/2001/XMLSchema-instance'
VIM = RbVmomi::VIM
$conn = VIM.new(:ns => 'urn:vim25', :rev => '4.0')
raw = File.read(ARGV[0])
def diff a, b
a_io = Tempfile.new 'rbvmomi-diff-a'
b_io = Tempfile.new 'rbvmomi-diff-b'
PP.pp a, a_io
PP.pp b, b_io
a_io.close
b_io.close
system("diff -u #{a_io.path} #{b_io.path}")
a_io.unlink
b_io.unlink
end
begin
deserializer = RbVmomi::OldDeserializer.new($conn)
end_time = Time.now + 1
n = 0
while n == 0 or end_time > Time.now
deserializer.deserialize Nokogiri::XML(raw).root
n += 1
end
N = n*10
end
puts "iterations: #{N}"
parsed_nokogiri = Nokogiri::XML(raw)
parsed_libxml = LibXML::XML::Parser.string(raw).parse
if true
nokogiri_xml = parsed_nokogiri.root
libxml_xml = parsed_libxml.root
old_nokogiri_result = RbVmomi::OldDeserializer.new($conn).deserialize nokogiri_xml
new_nokogiri_result = RbVmomi::NewDeserializer.new($conn).deserialize nokogiri_xml
new_libxml_result = RbVmomi::NewDeserializer.new($conn).deserialize libxml_xml
if new_nokogiri_result != old_nokogiri_result
puts "new_nokogiri_result doesnt match old_nokogiri_result"
puts "old_nokogiri_result:"
pp old_nokogiri_result
puts "new_nokogiri_result:"
pp new_nokogiri_result
puts "diff:"
diff old_nokogiri_result, new_nokogiri_result
exit 1
end
if new_libxml_result != old_nokogiri_result
puts "new_libxml_result doesnt match old_nokogiri_result"
puts "old_nokogiri_result:"
pp old_nokogiri_result
puts "new_libxml_result:"
pp new_libxml_result
puts "diff:"
diff old_nokogiri_result, new_libxml_result
exit 1
end
puts "all results match"
end
Benchmark.bmbm do|b|
GC.start
b.report("nokogiri parsing") do
N.times { Nokogiri::XML(raw) }
end
GC.start
b.report("libxml parsing") do
N.times do
LibXML::XML::Parser.string(raw).parse
end
end
GC.start
b.report("old deserialization (nokogiri)") do
deserializer = RbVmomi::OldDeserializer.new($conn)
N.times do
deserializer.deserialize Nokogiri::XML(raw).root
end
end
GC.start
b.report("new deserialization (nokogiri)") do
deserializer = RbVmomi::NewDeserializer.new($conn)
N.times do
deserializer.deserialize Nokogiri::XML(raw).root
end
end
GC.start
b.report("new deserialization (libxml)") do
deserializer = RbVmomi::NewDeserializer.new($conn)
N.times do
deserializer.deserialize LibXML::XML::Parser.string(raw).parse.root
end
end
end
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