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Use benchmark/ips to measure AR performance

This means we can more easily compare numbers, and we don't have to
specify a single N for all reports, which previously meant that some
tests were running many more/fewer iterations than necessary.
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commit 1411fc19862060a959f99be19770fb7eb1ad104f 1 parent 17bb324
Jon Leighton jonleighton authored
Showing with 36 additions and 39 deletions.
  1. +2 −0  Gemfile
  2. +34 −39 activerecord/examples/performance.rb
2  Gemfile
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@@ -96,3 +96,5 @@ end
# A gem necessary for ActiveRecord tests with IBM DB
gem 'ibm_db' if ENV['IBM_DB']
+
+gem 'benchmark-ips'
73 activerecord/examples/performance.rb
View
@@ -1,7 +1,6 @@
-TIMES = (ENV['N'] || 10000).to_i
-
require File.expand_path('../../../load_paths', __FILE__)
require "active_record"
+require 'benchmark/ips'
conn = { :adapter => 'sqlite3', :database => ':memory:' }
@@ -88,9 +87,22 @@ def self.email
)
end
-require 'benchmark'
+# These ones need more than 5 secs in order to get a useful result
+Benchmark.ips(20) do |x|
+ x.report("Model.all limit(100)") do
+ Exhibit.look Exhibit.limit(100)
+ end
+
+ x.report "Model.all limit(100) with relationship" do
+ Exhibit.feel Exhibit.limit(100).includes(:user)
+ end
+
+ x.report "Model.all limit(10,000)" do
+ Exhibit.look Exhibit.limit(10000)
+ end
+end
-Benchmark.bm(46) do |x|
+Benchmark.ips do |x|
ar_obj = Exhibit.find(1)
attrs = { :name => 'sam' }
attrs_first = { :name => 'sam' }
@@ -101,77 +113,60 @@ def self.email
:created_at => Date.today
}
- x.report("Model#id (x#{(TIMES * 100).ceil})") do
- (TIMES * 100).ceil.times { ar_obj.id }
+ x.report("Model#id") do
+ ar_obj.id
end
x.report 'Model.new (instantiation)' do
- TIMES.times { Exhibit.new }
+ Exhibit.new
end
x.report 'Model.new (setting attributes)' do
- TIMES.times { Exhibit.new(attrs) }
+ Exhibit.new(attrs)
end
x.report 'Model.first' do
- TIMES.times { Exhibit.first.look }
+ Exhibit.first.look
end
x.report 'Model.named_scope' do
- TIMES.times { Exhibit.limit(10).with_name.with_notes }
- end
-
- x.report("Model.all limit(100) (x#{(TIMES / 10).ceil})") do
- (TIMES / 10).ceil.times { Exhibit.look Exhibit.limit(100) }
- end
-
- x.report "Model.all limit(100) with relationship (x#{(TIMES / 10).ceil})" do
- (TIMES / 10).ceil.times { Exhibit.feel Exhibit.limit(100).includes(:user) }
- end
-
- x.report "Model.all limit(10,000) x(#{(TIMES / 1000).ceil})" do
- (TIMES / 1000).ceil.times { Exhibit.look Exhibit.limit(10000) }
+ Exhibit.limit(10).with_name.with_notes
end
x.report 'Model.create' do
- TIMES.times { Exhibit.create(exhibit) }
+ Exhibit.create(exhibit)
end
x.report 'Resource#attributes=' do
- TIMES.times {
- exhibit = Exhibit.new(attrs_first)
- exhibit.attributes = attrs_second
- }
+ e = Exhibit.new(attrs_first)
+ e.attributes = attrs_second
end
x.report 'Resource#update' do
- TIMES.times { Exhibit.first.update_attributes(:name => 'bob') }
+ Exhibit.first.update_attributes(:name => 'bob')
end
x.report 'Resource#destroy' do
- TIMES.times { Exhibit.first.destroy }
+ Exhibit.first.destroy
end
x.report 'Model.transaction' do
- TIMES.times { Exhibit.transaction { Exhibit.new } }
+ Exhibit.transaction { Exhibit.new }
end
x.report 'Model.find(id)' do
- id = Exhibit.first.id
- TIMES.times { Exhibit.find(id) }
+ User.find(1)
end
x.report 'Model.find_by_sql' do
- TIMES.times {
- Exhibit.find_by_sql("SELECT * FROM exhibits WHERE id = #{(rand * 1000 + 1).to_i}").first
- }
+ Exhibit.find_by_sql("SELECT * FROM exhibits WHERE id = #{(rand * 1000 + 1).to_i}").first
end
- x.report "Model.log x(#{TIMES * 10})" do
- (TIMES * 10).times { Exhibit.connection.send(:log, "hello", "world") {} }
+ x.report "Model.log" do
+ Exhibit.connection.send(:log, "hello", "world") {}
end
- x.report "AR.execute(query) (#{TIMES / 2})" do
- (TIMES / 2).times { ActiveRecord::Base.connection.execute("Select * from exhibits where id = #{(rand * 1000 + 1).to_i}") }
+ x.report "AR.execute(query)" do
+ ActiveRecord::Base.connection.execute("Select * from exhibits where id = #{(rand * 1000 + 1).to_i}")
end
end
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