Increased loading times on Rails 3 compared to 2.3.8

Same view on edge:

Completed 200 OK in 527ms (Views: 47.5ms | ActiveRecord: 2.8ms)

Definitely better but still twice as much as on 2.3.8.
Maybe it's too early to make these kind of evaluations...

wout I think we are in the same boat. Can you please try this?

puts Benchmark.measure{5000.times{User.find :first, :conditions => ["id = ?", (rand * 1000 + 1).to_i]}}

Replace User with your favorite model and 1000 with the max number of rows you probably have for that model.

Please try this in console for both 2.3.8 and 3.0 and report back the results.

It would be great if you can also try this in production.

I also have a ticket here: https://rails.lighthouseapp.com/projects/8994/tickets/5098-rails-3-...

Just to chime in here. Here are my results for Rails 2.x and Rails 3.x for both Ruby 1.8.7 and 1.9.1

Rails 2 & Ruby 1.8.7
==============================================================
Loading production environment (Rails 2.3.5)
>> puts Benchmark.measure{5000.times{User.find :first, :conditions => ["id = ?", (rand * 1000 + 1).to_s]}}
  1.580000   0.140000   1.720000 (  1.755681)

Rails 2 & Ruby 1.9.1
Loading production environment (Rails 2.3.5)
>> puts Benchmark.measure{5000.times{User.find :first, :conditions => ["id = ?", (rand * 1000 + 1).to_i]}}
  1.160000   0.100000   1.260000 (  1.498934)

Rails 3 & Ruby 1.8.7
==============================================================
Loading production environment (Rails 3.0.0.beta4)
irb(main):001:0> puts Benchmark.measure{5000.times{User.find :first, :conditions => ["id = ?", (rand * 1000 + 1).to_i]}}
  6.200000   0.270000   6.470000 (  6.666850)

Rails 3 & Ruby 1.9.1
==============================================================
Loading production environment (Rails 3.0.0.beta4)
irb(main):001:0> puts Benchmark.measure{5000.times{User.find :first, :conditions => ["id = ?", (rand * 1000 + 1).to_i]}}
  2.570000   0.110000   2.680000 (  2.710209)

Rails Edge & Ruby 1.9.1
==============================================================
Loading production environment (Rails 3.0.0.beta4)
irb(main):001:0> puts Benchmark.measure{5000.times{User.find :first, :conditions => ["id = ?", (rand * 1000 + 1).to_s]}}
  2.120000   0.140000   2.260000 (  2.408399)

Is there a good way how you can do git bisect over multiple rails version? Obviously the setup etc of the application and dependent gems changes quite a bit between Rails 2.x and Rails 3.

Thanks, Daniel

I installed ruby 1.9.2rc1 and the app is nearly back to normal loading times.
This is ruby 1.8.7:

Completed 200 OK in 1468ms (Views: 776.6ms | ActiveRecord: 1.7ms)

Same app, same view, same machine but ruby 1.9.2:

Completed 200 OK in 525ms (Views: 298.6ms | ActiveRecord: 1.7ms)

A lot of time is lost on the views, and still 525ms is rather high.
But I can work with this, we need to go in production beta next month.

Hi,

Just wanted to let you know we went in production last week and loading times are blazingly fast (http://paspartout.com). New relic gives us 72ms average response time, which is about 10 times faster than the rails 3 beta tests we were concerned about. Great job!

Wout

wout, and in comparison with 2.3?.
This ticket can be closed so?

I can't really compare to 2.3.
In fact I started building this project with 2.3 but than switched development to 3.

I noticed the performance drawback so I opened this ticket.
So comparing isn'r really possible.

I have another similar app running in 2.3.8 and the average loading time is 253ms
But paspartout (rails 3) runs on an 8-core Intel i7 with 8GB ram, the other app runs on a dual core AMD with 4GB ram, so I have no idea how that compares.