dry memory allocations

inline.rb

require "bundler/inline"

gem "dry-types"
gem "dry-struct"
gem "allocation_tracer"

require "dry-types"
require "dry-struct"

module Types
  class Agent < Dry::Struct
    include Dry::Types.module
    constructor_type :strict
    attribute :budget, Strict::Int
  end

  class Success < Dry::Struct
    include Dry::Types.module
    constructor_type :strict
    attribute :match_day_uid, Strict::String
    attribute :agent, Types::Agent
  end
end

GC.disable
require "allocation_tracer"
ObjectSpace::AllocationTracer.setup(%i{path line type})
ObjectSpace::AllocationTracer.start

1000.times do
  Types::Success.new(
    :match_day_uid => "string",
    :agent => Types::Agent.new(
      :budget => 1
    )
  )
end

at_exit {
  results = ObjectSpace::AllocationTracer.stop

  results.sort_by { |k, v| v[0] }.each { |(filename, line, type), v|
    $LOAD_PATH.detect do |path|
      regexp = %r{#{Regexp.quote(path)}/?}
      filename.gsub!(regexp, "")
    end
    puts "%60s:%-3d %8s %s" % [ filename, line, type, v.join("\t") ]
  }

  p :total => results.inject(0) { |sum, (k, v)| sum + v[0] }
}

output.txt

                                                   inline.rb:33   T_IMEMO 1     0       0       0       0       0
                               dry/struct/class_interface.rb:74   T_IMEMO 1     0       0       0       0       0
                               dry/struct/class_interface.rb:77   T_IMEMO 1     0       0       0       0       0
                                      dry/types/decorator.rb:28   T_IMEMO 1     0       0       0       0       0
                                                   inline.rb:39    T_DATA 1     0       0       0       0       0
                                                   inline.rb:0    T_ARRAY 1     0       0       0       0       0
                                    dry/types/hash/schema.rb:96   T_IMEMO 2     0       0       0       0       0
                                    dry/types/hash/schema.rb:52   T_IMEMO 2     0       0       0       0       0
                                                   inline.rb:32  T_STRING 1000  0       0       0       0       0
                                                   inline.rb:33    T_HASH 1000  0       0       0       0       0
                                                   inline.rb:31    T_HASH 1000  0       0       0       0       0
                                    dry/types/hash/schema.rb:92    T_HASH 2000  0       0       0       0       0
                                    dry/types/hash/schema.rb:60    T_HASH 2000  0       0       0       0       0
                                           dry/logic/rule.rb:0    T_ARRAY 2000  0       0       0       0       0
                                           dry/logic/rule.rb:47  T_OBJECT 2000  0       0       0       0       0
                                     dry/types/definition.rb:59  T_OBJECT 2000  0       0       0       0       0
                               dry/struct/class_interface.rb:77  T_OBJECT 2000  0       0       0       0       0
                                    dry/types/constrained.rb:20    T_DATA 4000  0       0       0       0       0
                                    dry/types/constrained.rb:27   T_ARRAY 4000  0       0       0       0       0
                                           dry/logic/rule.rb:47   T_ARRAY 4000  0       0       0       0       0
                                           dry/logic/rule.rb:47    T_DATA 4000  0       0       0       0       0
                                     dry/types/definition.rb:51   T_ARRAY 4000  0       0       0       0       0
                                    dry/types/hash/schema.rb:92   T_ARRAY 6000  0       0       0       0       0
                                               dry/struct.rb:16  T_STRING 6000  0       0       0       0       0
{:total=>47010}