# Rails Micro Benchmarks!
**URL:** https://community.rubybench.org/t/rails-micro-benchmarks/59
**Category:** Uncategorized
**Created:** [April 15, 2015, 3:58pm UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59 "2015-04-15T15:58:25Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [April 15, 2015, 3:58pm UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/1 "2015-04-15T15:58:25Z")
Starting this thread to get things going!
I’ve just added benchmarks for `default_scope` and the results are quite shocking that I’ll review it on my local machine tomorrow.
[http://rubybench.org/rails/rails/releases?result\_type=activerecord/sqlite3\_finders\_all](http://rubybench.org/rails/rails/releases?result_type=activerecord/sqlite3_finders_all)
There are still some benchmarks that Kirs has written but I’ve yet to activate them yet.
---
### Author:  [@sam](https://community.rubybench.org/u/sam)
#### Post date: [April 15, 2015, 8:49pm UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/2 "2015-04-15T20:49:15Z")
That does looks a bit odd, was expecting a regression in 4.2.0 not in 4.10
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### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [April 16, 2015, 6:04am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/3 "2015-04-16T06:04:57Z")
@sam I have verified and am getting the same results on my local machine.
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### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [April 16, 2015, 7:45am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/4 "2015-04-16T07:45:55Z")
```ruby
require 'bundler/setup'
require 'rails'
require 'active_record'
require 'stackprof'
require_relative 'support/benchmark_rails.rb'
ActiveRecord::Base.establish_connection(
adapter: 'sqlite3',
database: ':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
# Benchmark.rails("activerecord/sqlite3_finders_all", time: 10) do
StackProf.run(mode: :cpu, out: 'after.dump') do
100000.times do
User.all
end
end
```
---
### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [April 19, 2015, 1:02am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/5 "2015-04-19T01:02:48Z")
@sam
New results after calling `to_a` on `User.all`.
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### Author:  [@sam](https://community.rubybench.org/u/sam)
#### Post date: [April 19, 2015, 2:04am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/6 "2015-04-19T02:04:13Z")
clearly an anomaly on 3.2.4 its destroying the graph 🙂
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### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [April 19, 2015, 1:24pm UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/7 "2015-04-19T13:24:41Z")
Yea I noticed that and re-ran the benchmark again. Same results. We should investigate xD
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### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [April 19, 2015, 1:32pm UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/8 "2015-04-19T13:32:57Z")
I just ran the benchmark on the local machine. Didn’t seem like there was anything wrong. `User.all` returns an array on `Rails 3.2.4`.
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### Author:  [@sam](https://community.rubybench.org/u/sam)
#### Post date: [April 21, 2015, 2:19pm UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/9 "2015-04-21T14:19:10Z")
We need some sort of solution here, if there is an outlier result graph should still be usable.
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### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [May 28, 2015, 12:10am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/10 "2015-05-28T00:10:16Z")
Added mysql and postgres benchmarks.
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### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [May 28, 2015, 1:12am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/11 "2015-05-28T01:12:03Z")
Hmm just noticed that the anomaly disappear… [http://rubybench.org/rails/rails/releases?result\_type=activerecord/sqlite3\_finders\_all](http://rubybench.org/rails/rails/releases?result_type=activerecord/sqlite3_finders_all)
---
### Author:  [@system](https://community.rubybench.org/u/system)
#### Post date: [June 2, 2015, 8:56am UTC](https://community.rubybench.org/t/rails-micro-benchmarks/59/12 "2015-06-02T08:56:00Z")
Still needs to be fixed…