From beb07fbfae845d20323a9863c7216c6b63aff9c7 Mon Sep 17 00:00:00 2001 From: Guo Xiang Tan Date: Wed, 15 Jul 2015 22:00:36 +0800 Subject: Revert "Revert "Reduce allocations when running AR callbacks."" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This reverts commit bdc1d329d4eea823d07cf010064bd19c07099ff3. Before: Calculating ------------------------------------- 22.000 i/100ms ------------------------------------------------- 229.700 (± 0.4%) i/s - 1.166k Total Allocated Object: 9939 After: Calculating ------------------------------------- 24.000 i/100ms ------------------------------------------------- 246.443 (± 0.8%) i/s - 1.248k Total Allocated Object: 7939 ``` begin require 'bundler/inline' rescue LoadError => e $stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler' raise e end gemfile(true) do source 'https://rubygems.org' # gem 'rails', github: 'rails/rails', ref: 'bdc1d329d4eea823d07cf010064bd19c07099ff3' gem 'rails', github: 'rails/rails', ref: 'd2876141d08341ec67cf6a11a073d1acfb920de7' gem 'arel', github: 'rails/arel' gem 'sqlite3' gem 'benchmark-ips' end require 'active_record' require 'benchmark/ips' ActiveRecord::Base.establish_connection('sqlite3::memory:') ActiveRecord::Migration.verbose = false ActiveRecord::Schema.define do create_table :users, force: true do |t| t.string :name, :email t.boolean :admin t.timestamps null: false end end class User < ActiveRecord::Base default_scope { where(admin: true) } end admin = true 1000.times do attributes = { name: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.", email: "foobar@email.com", admin: admin } User.create!(attributes) admin = !admin end GC.disable Benchmark.ips(5, 3) do |x| x.report { User.all.to_a } end key = if RUBY_VERSION < '2.2' :total_allocated_object else :total_allocated_objects end before = GC.stat[key] User.all.to_a after = GC.stat[key] puts "Total Allocated Object: #{after - before}" ``` --- .../associations/has_many_through_association.rb | 2 +- activerecord/lib/active_record/callbacks.rb | 11 ++++++----- .../connection_adapters/abstract/connection_pool.rb | 4 ++-- activerecord/lib/active_record/core.rb | 8 ++++---- activerecord/lib/active_record/transactions.rb | 12 ++++++------ 5 files changed, 19 insertions(+), 18 deletions(-) (limited to 'activerecord') diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index cd79266952..1aa6a2ca74 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -133,7 +133,7 @@ module ActiveRecord if scope.klass.primary_key count = scope.destroy_all.length else - scope.each { |record| record.run_callbacks :destroy } + scope.each(&:_run_destroy_callbacks) arel = scope.arel diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index 3027ce928e..19f0dca5a6 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -289,24 +289,25 @@ module ActiveRecord end def destroy #:nodoc: - run_callbacks(:destroy) { super } + _run_destroy_callbacks { super } end def touch(*) #:nodoc: - run_callbacks(:touch) { super } + _run_touch_callbacks { super } end private + def create_or_update(*) #:nodoc: - run_callbacks(:save) { super } + _run_save_callbacks { super } end def _create_record #:nodoc: - run_callbacks(:create) { super } + _run_create_callbacks { super } end def _update_record(*) #:nodoc: - run_callbacks(:update) { super } + _run_update_callbacks { super } end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index 6535121075..282af220fb 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -508,7 +508,7 @@ module ActiveRecord synchronize do remove_connection_from_thread_cache conn - conn.run_callbacks :checkin do + conn._run_checkin_callbacks do conn.expire end @@ -764,7 +764,7 @@ module ActiveRecord end def checkout_and_verify(c) - c.run_callbacks :checkout do + c._run_checkout_callbacks do c.verify! end c diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 8a014e682e..b82488a59c 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -303,7 +303,7 @@ module ActiveRecord assign_attributes(attributes) if attributes yield self if block_given? - run_callbacks :initialize + _run_initialize_callbacks end # Initialize an empty model object from +coder+. +coder+ should be @@ -330,8 +330,8 @@ module ActiveRecord self.class.define_attribute_methods - run_callbacks :find - run_callbacks :initialize + _run_find_callbacks + _run_initialize_callbacks self end @@ -367,7 +367,7 @@ module ActiveRecord @attributes = @attributes.dup @attributes.reset(self.class.primary_key) - run_callbacks(:initialize) + _run_initialize_callbacks @new_record = true @destroyed = false diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb index 6f2def0df1..3131723828 100644 --- a/activerecord/lib/active_record/transactions.rb +++ b/activerecord/lib/active_record/transactions.rb @@ -319,8 +319,8 @@ module ActiveRecord end def before_committed! # :nodoc: - run_callbacks :before_commit_without_transaction_enrollment - run_callbacks :before_commit + _run_before_commit_without_transaction_enrollment_callbacks + _run_before_commit_callbacks end # Call the +after_commit+ callbacks. @@ -329,8 +329,8 @@ module ActiveRecord # but call it after the commit of a destroyed object. def committed!(should_run_callbacks: true) #:nodoc: if should_run_callbacks && destroyed? || persisted? - run_callbacks :commit_without_transaction_enrollment - run_callbacks :commit + _run_commit_without_transaction_enrollment_callbacks + _run_commit_callbacks end ensure force_clear_transaction_record_state @@ -340,8 +340,8 @@ module ActiveRecord # state should be rolled back to the beginning or just to the last savepoint. def rolledback!(force_restore_state: false, should_run_callbacks: true) #:nodoc: if should_run_callbacks - run_callbacks :rollback - run_callbacks :rollback_without_transaction_enrollment + _run_rollback_callbacks + _run_rollback_without_transaction_enrollment_callbacks end ensure restore_transaction_record_state(force_restore_state) -- cgit v1.2.3