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June 7, 2016 15:10
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benchmark nokogiri vs rexml
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# parsing a document 6731 bytes long | |
Warming up -------------------------------------- | |
nokogiri 488.000 i/100ms | |
rexml 21.000 i/100ms | |
Calculating ------------------------------------- | |
nokogiri 6.150k (±23.4%) i/s - 28.792k in 5.067345s | |
rexml 208.195 (± 5.3%) i/s - 1.050k in 5.056578s | |
Comparison: | |
nokogiri: 6150.3 i/s | |
rexml: 208.2 i/s - 29.54x slower | |
# xpath search | |
Warming up -------------------------------------- | |
nokogiri 2.388k i/100ms | |
rexml 42.000 i/100ms | |
Calculating ------------------------------------- | |
nokogiri 26.081k (± 3.8%) i/s - 131.340k in 5.043496s | |
rexml 431.709 (± 5.8%) i/s - 2.184k in 5.078139s | |
Comparison: | |
nokogiri: 26081.5 i/s | |
rexml: 431.7 i/s - 60.41x slower | |
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#! /usr/bin/env ruby | |
require 'nokogiri' | |
require 'rexml/document' | |
require 'benchmark/ips' | |
require 'test/unit' | |
include Test::Unit::Assertions | |
xml = File.read "vcenter.xml" | |
nokogiri_doc = Nokogiri::XML xml | |
rexml_doc = REXML::Document.new xml | |
puts "# parsing a document #{xml.length} bytes long\n" | |
Benchmark.ips do |b| | |
b.report "nokogiri" do | |
Nokogiri::XML xml | |
end | |
b.report "rexml" do | |
REXML::Document.new xml | |
end | |
b.compare! | |
end | |
puts "# xpath search\n" | |
Benchmark.ips do |b| | |
b.report "nokogiri" do | |
nodes = nokogiri_doc.xpath("//vmext:VmObjectRefsList//vmext:MoRef", vmext: "http://www.vmware.com/vcloud/extension/v1.5") | |
assert_equal ["vm-41", "vm-43", "vm-44"], nodes.map(&:inner_text) | |
end | |
b.report "rexml" do | |
nodes = REXML::XPath.match(rexml_doc, "//vmext:VmObjectRefsList//vmext:MoRef") | |
assert_equal ["vm-41", "vm-43", "vm-44"], nodes.map(&:children).map(&:first).map(&:to_s) | |
end | |
b.compare! | |
end |
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<?xml version="1.0" encoding="UTF-8"?> | |
<fakeroot> | |
<vmext:VmObjectRefsList | |
xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5" | |
page="1" | |
numberOfPages="1" | |
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> | |
<vmext:VmObjectRef | |
name="RH5u3_32bit"> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc2-v41u1" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>vm-41</vmext:MoRef> | |
<vmext:VimObjectType>VIRTUAL_MACHINE</vmext:VimObjectType> | |
</vmext:VmObjectRef> | |
<vmext:VmObjectRef | |
name="W2K3 64 R2"> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc2-v41u1" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>vm-43</vmext:MoRef> | |
<vmext:VimObjectType>VIRTUAL_MACHINE</vmext:VimObjectType> | |
</vmext:VmObjectRef> | |
<vmext:VmObjectRef | |
name="Ubuntu91_32_vt4"> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc2-v41u1" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>vm-44</vmext:MoRef> | |
<vmext:VimObjectType>VIRTUAL_MACHINE</vmext:VimObjectType> | |
</vmext:VmObjectRef> | |
</vmext:VmObjectRefsList> | |
<vmext:ResourcePoolList | |
xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5" | |
xmlns:vcloud="http://www.vmware.com/vcloud/v1.5" | |
type="application/vnd.vmware.admin.resourcePoolList+xml"> | |
<vcloud:Link | |
rel="up" | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:ResourcePool | |
name="cluster2"> | |
<vmext:MoRef>resgroup-195</vmext:MoRef> | |
<vmext:VimObjectType>RESOURCE_POOL</vmext:VimObjectType> | |
<vmext:DataStoreRefs> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc9-ds1" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>datastore-172</vmext:MoRef> | |
<vmext:VimObjectType>DATASTORE</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc9-ds2" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>datastore-173</vmext:MoRef> | |
<vmext:VimObjectType>DATASTORE</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
</vmext:DataStoreRefs> | |
</vmext:ResourcePool> | |
<vmext:ResourcePool | |
name="cluster3"> | |
<vmext:MoRef>resgroup-230</vmext:MoRef> | |
<vmext:VimObjectType>RESOURCE_POOL</vmext:VimObjectType> | |
<vmext:DataStoreRefs> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc9-ds10" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>datastore-174</vmext:MoRef> | |
<vmext:VimObjectType>DATASTORE</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
</vmext:DataStoreRefs> | |
</vmext:ResourcePool> | |
</vmext:ResourcePoolList> | |
<vmext:VimObjectRefList | |
xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5" | |
xmlns:vcloud="http://www.vmware.com/vcloud/v1.5" | |
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > | |
<vcloud:Link | |
rel="up" | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:VimObjectRefs> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="vc9" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>dvportgroup-32</vmext:MoRef> | |
<vmext:VimObjectType>DV_PORTGROUP</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>network-175</vmext:MoRef> | |
<vmext:VimObjectType>NETWORK</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
</vmext:VimObjectRefs> | |
</vmext:VimObjectRefList> | |
<vmext:VMWExternalNetworkReferences | |
xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5"> | |
<vmext:ExternalNetworkReference | |
type="application/vnd.vmware.admin.extension.network+xml" | |
name="VC0" | |
href="https://vcloud.example.com/api/admin/extension/externalnet/85" /> | |
<vmext:ExternalNetworkReference | |
type="application/vnd.vmware.admin.extension.network+xml" | |
name="VC1" | |
href="https://vcloud.example.com/api/admin/extension/externalnet/302" /> | |
</vmext:VMWExternalNetworkReferences> | |
<vmext:VMWStorageProfiles | |
xmlns:vmext="http://www.vmware.com/vcloud/extension/v1.5" | |
xmlns:vcloud="http://www.vmware.com/vcloud/v1.5" | |
> | |
<vmext:VMWStorageProfile | |
name="Gold"> | |
<vmext:MoRef>storageProfile-CFAA6D92-36FC-4C16-9B30-FAC79B902371</vmext:MoRef> | |
<vmext:VimObjectType>STORAGE_PROFILE</vmext:VimObjectType> | |
<vmext:FreeStorageMb>169203.0</vmext:FreeStorageMb> | |
<vmext:TotalStorageMb>325120.0</vmext:TotalStorageMb> | |
<vmext:DataStoreRefs> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>datastore-44</vmext:MoRef> | |
<vmext:VimObjectType>DATASTORE</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
<vmext:VimObjectRef> | |
<vmext:VimServerRef | |
type="application/vnd.vmware.admin.vmwvirtualcenter+xml" | |
name="" | |
href="https://vcloud.example.com/api/admin/extension/vimServer/9" /> | |
<vmext:MoRef>datastore-45</vmext:MoRef> | |
<vmext:VimObjectType>DATASTORE</vmext:VimObjectType> | |
</vmext:VimObjectRef> | |
</vmext:DataStoreRefs> | |
</vmext:VMWStorageProfile> | |
<vmext:VMWStorageProfile | |
name="Silver"> | |
</vmext:VMWStorageProfile> | |
<vmext:VMWStorageProfile | |
name="Bronze"> | |
</vmext:VMWStorageProfile> | |
</vmext:VMWStorageProfiles> | |
</fakeroot> |
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