Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model

Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist

merbist.com 23 Feb '12, 5pm

Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model

This is quite a scary graph but it shows nicely the features you are getting and their cost associated. For instance, the option of having the before and after initialization callback cost you 14% of your CPU time per instantiation, even though you probably almost never use these callbacks. I’m reading that by interpreting the node called ActiveSupport::Callback#run_callbacks, 3rd level from the top. So 14.1% of the CPU time is spent trying to run callbacks. As a quick note, note that 90.1% of the CPU time is spent initializing objects, the rest is spent in the loop and in the garbage collection (because the profiler runs many loops). You can then follow the code and see how the code works, creating a dynamic class callback method on the fly (the one with the long name) and then recreating the name of this callback to call it each time the object is allocated. It sounds li...

Full article: http://merbist.com/2012/02/23/quick-dive-into-ruby-orm-ob...

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@ogijun » 23 Mar '12, 6am
あとで読む / “Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist” [link]
@DeivinsonTejeda » 01 Mar '12, 1pm
Quick dive into Ruby ORM object initialization #Benchmark [link]
@tsubame959 » 27 Feb '12, 12am
RT @HNTweets: Performance cost of Ruby ORM model instantiation: [link] Comments: [link]
@bitherder » 26 Feb '12, 4pm
RT @leonardo_borges: Quick dive into Ruby ORM object initialization - [link]
@idryman » 25 Feb '12, 9pm
“@hackernewsbot: Performance cost of Ruby ORM model instantiation... [link]” 不過我還是喜歡用ORM 有時候ORM比我自己寫的SQL還快...（我猜是因為有Cache住？）
@radityopw » 25 Feb '12, 5am
RT @id_ruby: Quick dive into Ruby ORM object initialization [link] via @zite
@hannelita » 24 Feb '12, 10pm
RT @sr_valeriano: Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist [link] (via Instapaper)
@sr_valeriano » 24 Feb '12, 10pm
Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist [link] (via Instapaper)
@bsodmike » 24 Feb '12, 10am
Holy crap! Just saw what Model.all looks like [link] @merbist #rails #ActiveRecord #ORM #webdev #in
@bsodmike » 24 Feb '12, 10am
Note to self - hang the AR object init. graph in my office [link] @merbist
@bsodmike » 24 Feb '12, 10am
o/ “@merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]”
@gavinlaking » 24 Feb '12, 9am
Anyone know how to produce these graphs? [link] #ruby #Rails
@pulni » 24 Feb '12, 8am
Nice writeup! RT @hackernewsbot: Performance cost of Ruby ORM model instantiation... [link]
@immontilla » 24 Feb '12, 7am
Ruby ORM [link]
@ruph » 24 Feb '12, 7am
eh.. orm sux in general. and ruby isn't fast. RT @newsycombinator: Performance cost of Ruby ORM model instantiation [link]
@neo_microkid » 24 Feb '12, 4am
ORM performance cost, that's why I looked back to raw JDBC instead with Hibernate.Comprehensive article ORM on RoR [link]
@agirivera » 24 Feb '12, 3am
Performance cost of Ruby ORM model instantiation (ActiveRecord) (71 points) [link]
@Arlen » 24 Feb '12, 3am
Wow. Look what happens when you initialize Active Record. [link]
@lcadilson » 24 Feb '12, 12am
RT @tapajos: Very nice post (from @merbist) about ORM object initialization. [link]
@merbist » 24 Feb '12, 12am
my blog post [link] made it to the HackerNews front page (THX) so I added more graphs for #new #all & #instantiate
@dom3nic » 23 Feb '12, 11pm
Quick dive into Ruby ORM object initialization [link] via @zite
@6hf » 23 Feb '12, 11pm
RT @HackerNewsYC: Performance cost of Ruby ORM model instantiation [link]
@shie » 23 Feb '12, 10pm
Just read "Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist" [link] (via @readitlater)
@tapajos » 23 Feb '12, 10pm
Very nice post (from @merbist) about ORM object initialization. [link]
@IP_FIX » 23 Feb '12, 10pm
RT @biancalana: @IP_FIX RT @hackernewsbot: Performance cost of Ruby ORM model instantiation... [link]
@feydr » 23 Feb '12, 9pm
1 of the many reasons I don't like ORMs -- [link] don't get me wrong -- hibernate and friends blow chunks as well
@elviovicosa » 23 Feb '12, 8pm
Ruby ORM comparation [link]
@apardo » 23 Feb '12, 8pm
RT @newsycombinator: Performance cost of Ruby ORM model instantiation [link]
@yooStartups » 23 Feb '12, 8pm
Performance cost of Ruby ORM model instantiation [link] #startups
@alvrod » 23 Feb '12, 8pm
"Instantiating an ActiveRecord class is 20x slower than instantiating a normal class" Performance cost of Ruby ORM [link]
@biancalana » 23 Feb '12, 7pm
@IP_FIX RT @hackernewsbot: Performance cost of Ruby ORM model instantiation... [link]
@tek_news » 23 Feb '12, 7pm
HNews: Performance cost of Ruby ORM model instantiation [link] #ruby
@yukoloveget0801 » 23 Feb '12, 7pm
おお Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist: Yesterday I did some quick digging... [link]
@HNTweets » 23 Feb '12, 7pm
Performance cost of Ruby ORM model instantiation: [link] Comments: [link]
@loeffler » 23 Feb '12, 6pm
Interesting article from main contributor to MacRuby on ORM model, esp ActiveRecord [link]
@hnfirehose » 23 Feb '12, 6pm
Performance cost of Ruby ORM model instantiation: [link]
@delicerubyrails » 23 Feb '12, 8pm
Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist: [link]
@k776 » 23 Feb '12, 8pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@eyadsibai » 23 Feb '12, 8pm
RT @newsycombinator: Performance cost of Ruby ORM model instantiation [link]
@noblin_ » 23 Feb '12, 8pm
newsycombinator: Performance cost of Ruby ORM model instantiation [link]
@newsycombinator » 23 Feb '12, 8pm
Performance cost of Ruby ORM model instantiation [link]
@hackernewsbot » 23 Feb '12, 7pm
Performance cost of Ruby ORM model instantiation... [link]
@AkitaOnRails » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@mojinations » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@peterskeide » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@beiterr » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@yorkxin » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@nebiros » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@camwoodmansee » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]
@Gasolinr » 23 Feb '12, 6pm
RT @merbist: Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model [link]

Performance cost of Ruby ORM model instantiation (ActiveRecord) | Merbist

Blog post: Quick dive into ORM object initialization or what's going on when you initialize an AR model

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