| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
This PR adds the allocations to the instrumentation for template and
partial rendering.
Before:
```
Rendering posts/new.html.erb within layouts/application
Rendered posts/_form.html.erb (9.7ms)
Rendered posts/new.html.erb within layouts/application (10.9ms)
Completed 200 OK in 902ms (Views: 890.8ms | ActiveRecord: 0.8ms)
```
After:
```
Rendering posts/new.html.erb within layouts/application
Rendered posts/_form.html.erb (Duration: 7.1ms | Allocations: 6004)
Rendered posts/new.html.erb within layouts/application (Duration: 8.3ms | Allocations: 6654)
Completed 200 OK in 858ms (Views: 848.4ms | ActiveRecord: 0.4ms | Allocations: 1539564)
```
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Since Rails 6.0 will support Ruby 2.4.1 or higher
`# frozen_string_literal: true` magic comment is enough to make string object frozen.
This magic comment is enabled by `Style/FrozenStringLiteralComment` cop.
* Exclude these files not to auto correct false positive `Regexp#freeze`
- 'actionpack/lib/action_dispatch/journey/router/utils.rb'
- 'activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb'
It has been fixed by https://github.com/rubocop-hq/rubocop/pull/6333
Once the newer version of RuboCop released and available at Code Climate these exclude entries should be removed.
* Replace `String#freeze` with `String#-@` manually if explicit frozen string objects are required
- 'actionpack/test/controller/test_case_test.rb'
- 'activemodel/test/cases/type/string_test.rb'
- 'activesupport/lib/active_support/core_ext/string/strip.rb'
- 'activesupport/test/core_ext/string_ext_test.rb'
- 'railties/test/generators/actions_test.rb'
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
In Ruby 2.3 or later, `String#+@` is available and `+@` is faster than `dup`.
```ruby
# frozen_string_literal: true
require "bundler/inline"
gemfile(true) do
source "https://rubygems.org"
gem "benchmark-ips"
end
Benchmark.ips do |x|
x.report('+@') { +"" }
x.report('dup') { "".dup }
x.compare!
end
```
```
$ ruby -v benchmark.rb
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux]
Warming up --------------------------------------
+@ 282.289k i/100ms
dup 187.638k i/100ms
Calculating -------------------------------------
+@ 6.775M (± 3.6%) i/s - 33.875M in 5.006253s
dup 3.320M (± 2.2%) i/s - 16.700M in 5.032125s
Comparison:
+@: 6775299.3 i/s
dup: 3320400.7 i/s - 2.04x slower
```
|
| | |
|
| |
|
|
|
| |
This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
|
| |\
| |
| |
| | |
Enforce frozen string in Rubocop
|
| | | |
|
| |/
|
|
| |
Plus a couple of related ActionPack patches.
|
| | |
|
| |
|
|
| |
to the code)
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Implement naive partial caching mechanism.
Add test for LogSubscriber
Use ActionView::Base#log_payload to store log_subscriber's payload, so we can pass cache result into it.
Fixed tests
Remove useless settings
Check if #log_payload exists before calling it. Because other classes also includes CacheHelper but don't have is attribute
Use @log_payload_for_partial_reder instead of #log_payload to carry ActionView's payload.
Update test's hash syntax
Add configuration to enable/disable fragment caching logging
Remove unless test and add new test to ensure cache info won't effect next rendering's log
Move :enable_fragment_cache_logging config from ActionView to ActionPack
Apply new config to tests
Update actionview's changelog
Update configuration guide
Improve actionview's changelog
Refactor PartialRenderer#render and log tests
Mute subscriber's log instead of disabling instrumentation.
Fix typo, remove useless comment and use new hash syntax
Improve actionpack's log_subscriber test
Fix rebase mistake
Apply new config to all caching intstrument actions
|
| |
|
|
|
| |
We don't need to use active support in this case because we know the
type that will be returned.
|
| |
|
|
|
|
|
|
| |
Referencing Rails.env without checking if it's defined couples
us to Railties.
Fix by avoiding the line breaks if we don't have an env check
to rely on.
|
| |
|
|
| |
- Fixes #23428.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
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
|
| | |
|
| | |
|
| |
|
|
|
|
|
|
| |
The Logger by default includes a guard which checks for the
logging level. By removing the custom logging guards, we can decouple
the logging guard from the logging action to be done.
This also follows the good practice listed on http://guides.rubyonrails.org/debugging_rails_applications.html#impact-of-logs-on-performance.
|
| | |
|
| |
|
|
| |
when only 1 parameter is unpermitted.
|
| |
|
|
|
|
|
|
| |
deep_munge solves CVE-2013-0155 security vulnerability, but its
behaviour is definately confuisng. This commit adds logging to deep_munge.
It logs keys for which values were set to nil.
Also mentions in guides were added.
|
| | |
|
| | |
|
| |
|
|
| |
performing an operations.
|
| | |
|
| | |
|
| | |
|
| |
|
|
| |
LogSubscriber#process_action
|
| | |
|
| | |
|
| |
|
|
| |
a before callback halts.
|
| |
|
|
| |
other events, pull processing to char[0] and add a new line to the completed. looks more like a block now, which is useful for serial actions like test/dev
|
| | |
|
| |
|
|
|
|
| |
exception [#6333 state:resolved]
Signed-off-by: José Valim <jose.valim@gmail.com>
|
| |
|
|
| |
Signed-off-by: José Valim <jose.valim@gmail.com>
|
|
|
frameworks like ActiveRecord and ActiveResource to log outsude Rails::Application [#4816 state:resolved]
|
