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June 27, 2017 20:08
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require 'active_record' | |
ActiveRecord::Base.establish_connection( | |
:adapter => 'sqlite3', | |
:database => 'benchmark.db' | |
) | |
# ActiveRecord::Migration.class_eval do | |
# create_table :users do |t| | |
# t.string :email | |
# t.string :name | |
# end | |
# end | |
class User < ActiveRecord::Base | |
attr_accessor :email, :name | |
end | |
def tracerpoint | |
calls = [] | |
trace = TracePoint.new(:call, :c_call) do |tp| | |
calls << [tp.defined_class, tp.method_id, tp.lineno] | |
end | |
trace.enable | |
yield | |
trace.disable | |
calls.group_by(&:itself).map {|k, v| {k => v.length}}.sort_by {|h| -h.values.first} | |
end | |
@user = User.find_or_create_by(email: 'gianna@gianna.codes', name: 'gianna') | |
calls = tracerpoint do | |
@user.present? | |
end | |
# puts calls | |
puts "count for @user.present?: #{calls.collect(&:values).flatten.sum}" | |
calls = tracerpoint do | |
!!@user | |
end | |
puts "count for !!@user: #{calls.collect(&:values).flatten.sum}" |
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