鹿児島Ruby会議02 の講演「Rails 7.1をn倍速くした話」のスライド https://k-ruby.com/kagoshima-rubykaigi02/ #k_ruby
Rails7.1n@a_matsuda
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self🌋Tw: @a_matsuda🌋GH: amatsuda🌋Rails🌋Asakusa.rb🌋RubyKaigi
MAGMA City!?
Ruby on Rails
Framework Benchmarks
jeremyevans/r10k
jeremyevans/r10k$ rake bench graphs R10K_APPS="rails roda"/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' rails 1 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' rails 2 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' rails 3 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' rails 4 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' roda 1 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' roda 2 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' roda 3 10/Users/a_matsuda/.rbenv/versions/3.3.0-dev/bin/ruby builder.rb '' roda 4 10running apps/rails_1_10.rb, pass 1, 11181 requests/secondrunning apps/rails_1_10.rb, pass 2, 11274 requests/secondrunning apps/rails_1_10.rb, pass 3, 10911 requests/secondrunning apps/rails_2_10.rb, pass 1, 9691 requests/secondrunning apps/rails_2_10.rb, pass 2, 10756 requests/secondrunning apps/rails_2_10.rb, pass 3, 10630 requests/secondrunning apps/rails_3_10.rb, pass 1, 10071 requests/secondrunning apps/rails_3_10.rb, pass 2, 10211 requests/secondrunning apps/rails_3_10.rb, pass 3, 10261 requests/secondrunning apps/rails_4_10.rb, pass 1, 9377 requests/secondrunning apps/rails_4_10.rb, pass 2, 9342 requests/secondrunning apps/rails_4_10.rb, pass 3, 9440 requests/secondrunning apps/roda_1_10.rb, pass 1, 431760 requests/secondrunning apps/roda_1_10.rb, pass 2, 428678 requests/secondrunning apps/roda_1_10.rb, pass 3, 433585 requests/secondrunning apps/roda_2_10.rb, pass 1, 240096 requests/secondrunning apps/roda_2_10.rb, pass 2, 236359 requests/secondrunning apps/roda_2_10.rb, pass 3, 239348 requests/secondrunning apps/roda_3_10.rb, pass 1, 178426 requests/secondrunning apps/roda_3_10.rb, pass 2, 184530 requests/secondrunning apps/roda_3_10.rb, pass 3, 185453 requests/secondrunning apps/roda_4_10.rb, pass 1, 121037 requests/secondrunning apps/roda_4_10.rb, pass 2, 144010 requests/secondrunning apps/roda_4_10.rb, pass 3, 141795 requests/second
(Roda )
🌋Roda 40
Rails
DB🌋Rails
Really?
🌋
No🌋🌋⾒🌋
🌋🤔
(1)🌋Nate Asakusa.rb
Nate Asakusa.rb🌋2022 5🌋Puma Nate Asakusa meetup🌋🌋🌋Rails🌋upstream
(2)🌋☠
🌋2022 11🌋🦴🌋🌋push🌋Ruby
(3)🌋
🌋nobu🌋OSS 🙏
🌋🌋🌋
🌋Object Allocations
Object Allocations🌋🌋GC
Object Allocations🌋Object.new🌋'' [] {}
🌋Rails
[199ec16d-cd73-4d9f-9941-a6754b86fcc3] Completed 200 OK in 2ms (Allocations: 249)
🌋Zero Allocation🌋( )
How Do We Measure?🌋Rails : 7.0.4.2 (current neweststable)🌋production env🌋ObjectSpace GC.stat
module Railsdef self.mem# ͳΜ͔ ObjectSpace.count_objects ͕ࢥͬͨͱ͓ΓͷڍಈͰͳ͔ͬͨͷͰྗٕͰbefore = GC.stat(:total_allocated_objects)result = yieldafter = GC.stat(:total_allocated_objects)puts "total_allocated: #{after - before - 1}"resultennd
🌋$ rails r 'Rails.mem {100.times {a = [] } }'🌋total_allocated:100
Rails🌋webRack
Rails::EngineRails::Engine.prepend(Module.new {def call(*)Rails.mem dosuperendend})
🌋GC
GC.disableRails.application.config.to_prepare doGC.startGC.disableend
scaffoldshow$ rails g scaffold post title$ rails db:migrate$ rails r 'Post.create! title: "Post1"'
🌋total_allocated:1757
🌋SamSaffron/memory_profiler🌋ko1/allocation_tracer
SamSaffron/memory_profiler
module Railsdef self.memory_profilerresult = nilMemoryProfiler.report { result = yield }.pretty_print(allocated_strings: 100, normalize_paths: true)resultennd
🌋allocated objects by location🌋allocated objects by class🌋Allocated String Report🌋
show🌋
🌋 🌋
🌋view renderrender🌋Action View template
showdef showrender html: 'Hello'end
🌋Total allocated:65135bytes(782objects)
set_post🌋@post🌋Active Record
✂ show- before_action :set_post, only: %i[ show edit update destroy ]+ before_action :set_post, only: %i[ edit update destroy ]
🌋Total allocated:59047bytes(701objects)
viewrenderhead :ok
🌋53302bytes (634objects)
Rails 🌋Rack🌋Rack Rails🌋action
Rack🌋Rails::Engine#call
Rack Railsmodule Railsclass Profdef initialize(app) = @app = appdef call(env) = Rails.memory_profiler { @app.call(env) }endapplication.config.middleware.use Profend
actionclass ApplicationController < ActionController::Basedef send_action(*)p request.pathRails.memory_profiler dosuperennnd
🌋2072bytes (34objects)
🌋loop do🌋🌋&🌋🌋end
Array # actionview/lib/action_view/lookup_context.rb- if values == [:js]+ if (values.length == 1) && (values[0] == :js)
Range- path[(i + 2)..-1]+ path[(i + 2), path.length]
Request# actionpack/lib/action_dispatch/middleware/show_exceptions.rbdef call(env)- request = ActionDispatch::Request.new env@app.call(env)rescue Exception => exception+ request = ActionDispatch::Request.new envif request.show_exceptions?render_exception(request, exception)else
String#% Array# railties/lib/rails/rack/logger.rbdef started_request_message(request) # :doc:- 'Started %s "%s" for %s at %s' % [+ sprintf('Started %s "%s" for %s at %s',request.raw_request_method,request.filtered_path,request.remote_ip,- Time.now.to_default_s ]+ Time.now.to_default_s)
Rack middleware env Array# actionpack/lib/action_dispatch/journey/router.rbreq.path_parameters = tmp_params- status, headers, body = route.app.serve(req)+ _, headers, _ = response = route.app.serve(req)if "pass" == headers["X-Cascade"]req.script_name = script_name@@ -56,7 +56,7 @@ def serve(req)nextend- return [status, headers, body]+ return responseend
🌋Rails 1🌋
🌋🌋
🌋CPU🌋5
Rails🌋🌋Active SupportAction View
7.0 edge Rails(to be7.1) 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
1 80 🌋
PR 🌋real world app
🌋0.1% 505%
main push🌋🌋Rails
main push 4 CI 🌋( )🌋
rack logger ipaddr 話
🌋Final Fight
edge Rails 🌋1672bytes (25objects)
⾒🌋memory_profiler 🤔
Rails class Cdef initialize = @x = nildelegate :hash, to: :@xdef hash2() = @x.hashendc = C.newp hash_via_delegate: c.hashRails.memory_profiler { c.hash }#=> 1p hash_via_method_call: c.hash2Rails.memory_profiler { c.hash2 }#=> 0
delegate
🌋delegate*args, **kwargs, &block🌋*args Array **kwargs Hash🌋... Array Hash🌋delegate⾒
🌋https://bugs.ruby-lang.org/issues/19165
delegate 🌋1552bytes (22objects)
allocated objects by location5 actionpack/lib/action_dispatch/http/response.rb:4294 actionpack/lib/action_dispatch/http/response.rb:4283 rack-3.0.4.2/lib/rack/headers.rb:1513 actionpack/lib/action_dispatch/http/response.rb:4432 rack-3.0.4.2/lib/rack/headers.rb:311 actionpack/lib/action_controller/metal.rb:2241 actionpack/lib/action_dispatch/http/mime_type.rb:1491 actionpack/lib/action_dispatch/http/response.rb:4381 actionpack/lib/action_dispatch/http/response.rb:4681 kagoshima02/app/controllers/application_controller.rb:6
🌋CONTENT_TYPE Match🌋ContentTypeHeader🌋Rack request header key String🌋charset downcase String🌋CONTENT_TYPE value String🌋Rack body Array🌋MimeType Symbol lookup to_s String( Symbol GC )🌋body Buffer🌋send_action splat Array
push ⾒
🌋CONTENT_TYPE Match🌋ContentTypeHeader🌋charset downcase String🌋CONTENT_TYPE value String🌋Rack body Array🌋body Buffer🌋send_action splat Array
allocated objects by location-----------------------------------5 actionpack/lib/action_dispatch/http/response.rb:4294 actionpack/lib/action_dispatch/http/response.rb:4283 actionpack/lib/action_dispatch/http/response.rb:4431 actionpack/lib/action_controller/metal.rb:2241 actionpack/lib/action_dispatch/http/response.rb:4381 actionpack/lib/action_dispatch/http/response.rb:4681 kagoshima02/app/controllers/application_controller.rb:6
head :ok Final Result🌋1312bytes (16objects)
Rack middleware🌋29938bytes (377objects)
🌋Rack::Static🌋Rack::Static
config.public_file_server.enabled = false🌋24146bytes (296objects)
🌋ParameterFilter🌋URL🌋IP🌋Monitor🌋🌋
ParameterFilter
🌋22054bytes (268objects)
benchmark-ips
Rails benchmark-ips 5Rails::Engine.prepend(Module.new {def call(*)result = superBenchmark.ips do |x|x.report { super }endresultend})
head :ok IPS🌋7.0:1.948k (±4.1%) i/s -9.900k in5.091710s🌋7.1:6.506k (±9.0%) i/s -32.571k in5.047155s
render plain: 'Hello' IPS🌋7.0:1.841k (±3.2%) i/s -9.204k in5.003849s🌋7.1:5.761k (±8.2%) i/s -28.944k in5.059817s
"Rails7.1n "
n =34
Action Controller
Action View & Active Record
To Be Continued...
end
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