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* String#freeze optimizationsschneems2015-07-302-2/+2
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* Decrease allocations in transliterateschneems2015-07-301-5/+13
| | | | | | We can save a few objects by freezing the `replacement` string. We save a few more by down-casing the string in memory instead of allocating a new one. We save far more objects by checking for the default separator `"-"`, and using pre-generated regular expressions. We will save 209,231 bytes and 1,322 objects.
* Decrease string allocations in apply_inflectionsschneems2015-07-292-5/+36
| | | | | | In `apply_inflections` a string is down cased and some whitespace stripped in the front (which allocate strings). This would normally be fine, however `uncountables` is a fairly small array (10 elements out of the box) and this method gets called a TON. Instead we can keep an array of valid regexes for each uncountable so we don't have to allocate new strings. This change buys us 325,106 bytes of memory and 3,251 fewer objects per request.
* Tiny documentation edits [ci skip]Robin Dupret2015-07-281-1/+1
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* Add `:nodoc:` for internal testing methods [ci skip]Robin Dupret2015-07-281-2/+2
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* Merge pull request #20928 from matthewd/unload-interlockMatthew Draper2015-07-244-34/+384
|\ | | | | We need stricter locking before we can unload
| * Small tweaks to mainly lock-ordering tests.thedarkone2015-07-221-21/+58
| | | | | | | | | | | | * only test the upgrade path, * add test to verify non upgrades can’t preempt, * add reentrancy assertion.
| * Handle thread death during lock acquisitionMatthew Draper2015-07-212-4/+27
| | | | | | | | | | | | Specifically, clean up if the thread is killed while it's blocked awaiting the lock... if we get killed on some other arbitrary line, the result remains quite undefined.
| * Adjust expectations around purpose/compatibility optionsMatthew Draper2015-07-212-9/+36
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| * Add some meta-assertions for the custom assertionsMatthew Draper2015-07-211-11/+63
| | | | | | | | | | | | I accidentally discovered `assert_threads_not_stuck` couldn't fail, so the simplest solution was to prove they're all now working in both directions.
| * Order of execution is only guaranteed if upgradingMatthew Draper2015-07-212-2/+4
| | | | | | | | | | If the thread isn't yet holding any form of lock, it has no claim over what may / may not run while it's blocked.
| * Fix ShareLock issues.thedarkone2015-07-201-2/+2
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| * Tests for AS::Concurrency::ShareLock.thedarkone2015-07-201-0/+194
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| * We need stricter locking before we can unloadMatthew Draper2015-07-203-33/+48
| | | | | | | | | | | | | | | | | | | | | | | | Specifically, the "loose upgrades" behaviour that allows us to obtain an exclusive right to load things while other requests are in progress (but waiting on the exclusive lock for themselves) prevents us from treating load & unload interchangeably: new things appearing is fine, but they do *not* expect previously-present constants to vanish. We can still use loose upgrades for unloading -- once someone has decided to unload, they don't really care if someone else gets there first -- it just needs to be tracked separately.
* | Don't apply locking around basic #load / #requireMatthew Draper2015-07-231-6/+4
|/ | | | | | That's outside our remit, and dangerous... if a caller has their own locking to protect against the natural race danger, we'll deadlock against it.
* Fix tests broken by previous commitSean Griffin2015-07-191-1/+1
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* Merge pull request #20946 from schneems/schneems/let-it-goSean Griffin2015-07-198-20/+20
|\ | | | | Freeze string literals when not mutated.
| * Freeze string literals when not mutated.schneems2015-07-198-20/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I wrote a utility that helps find areas where you could optimize your program using a frozen string instead of a string literal, it's called [let_it_go](https://github.com/schneems/let_it_go). After going through the output and adding `.freeze` I was able to eliminate the creation of 1,114 string objects on EVERY request to [codetriage](codetriage.com). How does this impact execution? To look at memory: ```ruby require 'get_process_mem' mem = GetProcessMem.new GC.start GC.disable 1_114.times { " " } before = mem.mb after = mem.mb GC.enable puts "Diff: #{after - before} mb" ``` Creating 1,114 string objects results in `Diff: 0.03125 mb` of RAM allocated on every request. Or 1mb every 32 requests. To look at raw speed: ```ruby require 'benchmark/ips' number_of_objects_reduced = 1_114 Benchmark.ips do |x| x.report("freeze") { number_of_objects_reduced.times { " ".freeze } } x.report("no-freeze") { number_of_objects_reduced.times { " " } } end ``` We get the results ``` Calculating ------------------------------------- freeze 1.428k i/100ms no-freeze 609.000 i/100ms ------------------------------------------------- freeze 14.363k (± 8.5%) i/s - 71.400k no-freeze 6.084k (± 8.1%) i/s - 30.450k ``` Now we can do some maths: ```ruby ips = 6_226k # iterations / 1 second call_time_before = 1.0 / ips # seconds per iteration ips = 15_254 # iterations / 1 second call_time_after = 1.0 / ips # seconds per iteration diff = call_time_before - call_time_after number_of_objects_reduced * diff * 100 # => 0.4530373333993266 miliseconds saved per request ``` So we're shaving off 1 second of execution time for every 220 requests. Is this going to be an insane speed boost to any Rails app: nope. Should we merge it: yep. p.s. If you know of a method call that doesn't modify a string input such as [String#gsub](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37) please [give me a pull request to the appropriate file](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37), or open an issue in LetItGo so we can track and freeze more strings. Keep those strings Frozen ![](https://www.dropbox.com/s/z4dj9fdsv213r4v/let-it-go.gif?dl=1)
* | Merge pull request #20944 from repinel/fix-time-with-zone-eqlKasper Timm Hansen2015-07-193-1/+13
|\ \ | |/ |/| Fix `TimeWithZone#eql?` to handle `TimeWithZone` created from `DateTime`
| * Fix `TimeWithZone#eql?` to handle `TimeWithZone` created from `DateTime`Roque Pinel2015-07-193-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before: ```ruby twz = DateTime.now.in_time_zone twz.eql?(twz.dup) => false ``` Now: ```ruby twz = DateTime.now.in_time_zone twz.eql?(twz.dup) => true ``` Please notice that this fix the `TimeWithZone` comparison to itself, not to `DateTime`. Based on #3725, `DateTime` should not be equal to `TimeWithZone`.
* | Merge pull request #20839 from ↵Sean Griffin2015-07-181-9/+34
|\ \ | |/ |/| | | | | TheBlasfem/added_examples_dateandtime_calculations Added examples to DateAndTime::Calculations [ci skip]
| * added examples to DateAndTime::Calculations [ci skip]Julio Lopez2015-07-181-9/+34
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* | ActiveSupport::HashWithIndifferentAccess select and reject should return ↵Bernard Potocki2015-07-173-0/+19
| | | | | | | | enumerator if called without block
* | [skip ci] Lookup can be a noun but it is not a verbJon Atack2015-07-171-1/+2
| | | | | | | | Various grammar corrections and wrap to 80 characters.
* | Merge pull request #20887 from tgxworld/ar_callbacksRafael Mendonça França2015-07-151-3/+11
|\ \ | | | | | | Revert "Revert "Reduce allocations when running AR callbacks.""
| * | Revert "Revert "Reduce allocations when running AR callbacks.""Guo Xiang Tan2015-07-161-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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}" ```
* | | Replaced `ActiveSupport::Concurrency::Latch` with concurrent-ruby.Jerry D'Antonio2015-07-133-16/+14
|/ / | | | | | | | | | | | | | | | | | | The concurrent-ruby gem is a toolset containing many concurrency utilities. Many of these utilities include runtime-specific optimizations when possible. Rather than clutter the Rails codebase with concurrency utilities separate from the core task, such tools can be superseded by similar tools in the more specialized gem. This commit replaces `ActiveSupport::Concurrency::Latch` with `Concurrent::CountDownLatch`, which is functionally equivalent.
* | Expand coverage of JSON gem testsGodfrey Chan2015-07-111-16/+30
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* | Expand the JSON test coverage for Struct and Hash (?!)Godfrey Chan2015-07-111-1/+13
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* | Add tests to ensure we don't interfere with json gem's outputGodfrey Chan2015-07-113-102/+160
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* | fix class name typo [ci skip]yuuji.yaginuma2015-07-111-1/+1
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* | Merge pull request #20838 from TheBlasfem/improve_duplicable_documentationKasper Timm Hansen2015-07-111-1/+5
|\ \ | | | | | | Improve duplicable documentation [ci skip]
| * | improve duplicable documentation [ci skip]Julio Lopez2015-07-101-1/+5
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* | Require yaml for XML mini isolation test.Kasper Timm Hansen2015-07-111-0/+1
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* | Merge pull request #17102 from matthewd/load-interlockAaron Patterson2015-07-103-34/+243
|\ \ | | | | | | Concurrent load interlock (rm Rack::Lock)
| * | Document ShareLock and the InterlockMatthew Draper2015-07-093-9/+42
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| * | Rely on the load interlock for non-caching reloads, tooMatthew Draper2015-07-091-0/+10
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| * | Soften the lock requirements when eager_load is disabledMatthew Draper2015-07-093-34/+200
| | | | | | | | | | | | | | | We don't need to fully disable concurrent requests: just ensure that loads are performed in isolation.
* | | Require yaml for time_zone isolation test.Kasper Timm Hansen2015-07-111-0/+1
| | | | | | | | | | | | See 2f26f611 for more info.
* | | Add multiple expected calls to assert_called_with.Kasper Timm Hansen2015-07-102-1/+13
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* | | Require yaml for time_with_zone isolation testPrem Sichanugrist2015-07-101-0/+1
| | | | | | | | | | | | | | | Same fix as 109e71d2bb6d2305a091fe7ea96d4f6e9c7cd52d but after mocha got removed in 2f28e5b6417fd4e5d6060983b36262737558b613.
* | | Reuse the same test for HWIA reverse_merge!Rafael Mendonça França2015-07-101-3/+1
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* | | Merge pull request #20828 from Sirupsen/hash-indifferent-dup-default-procRafael Mendonça França2015-07-104-13/+58
|\ \ \ | |_|/ |/| | active_support/indifferent_access: fix not raising when default_proc does
| * | test/hash: move lonely indifferent hash testSimon Eskildsen2015-07-102-11/+6
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| * | active_support/indifferent_hash: dont raise on to_hash when default_proc raisesSimon Eskildsen2015-07-103-1/+22
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| * | active_support/indifferent_hash: fix cloning default_proc on dupSimon Eskildsen2015-07-103-1/+30
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* | | Removed use of mocha in active_supportRonak Jangir2015-07-108-65/+87
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* | | Merge pull request #20784 from kaspth/great-expectationsKasper Timm Hansen2015-07-082-0/+121
|\ \ \ | |_|/ |/| | Add method call assertions for internal use.
| * | Add method call assertions for internal use.Kasper Timm Hansen2015-07-082-0/+121
| |/ | | | | | | | | Add `assert_called` and `assert_not_called` to boil down the boilerplate we need to write to assert methods are called certain number of times.
* | adding brackets to array in docsJulio Lopez2015-07-071-1/+1
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