Class: AbstractImporter::Reporters::PerformanceReporter

Inherits:
BaseReporter
  • Object
show all
Defined in:
lib/abstract_importer/reporters/performance_reporter.rb

Instance Attribute Summary collapse

Attributes inherited from BaseReporter

#io

Instance Method Summary collapse

Methods inherited from BaseReporter

#batch_inserted, #count_error, #count_notice, #finish_all, #finish_setup, #finish_teardown, #start_all

Constructor Details

#initialize(io, options = {}) ⇒ PerformanceReporter

Returns a new instance of PerformanceReporter.



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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 8

def initialize(io, options={})
  super io
  @sample_size = options.fetch(:sample_size, 50)
  ObjectSpace.trace_object_allocations_start
end

Instance Attribute Details

#sample_sizeObject (readonly)

Returns the value of attribute sample_size.



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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 6

def sample_size
  @sample_size
end

Instance Method Details

#finish_collection(collection, summary) ⇒ Object



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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 22

def finish_collection(collection, summary)
  @collection = nil
  return if @i.zero?
  find_objects_holding_onto_references_to_a collection.model
end


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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 39

def print_stats
  stats = GC.stat
  objects = ObjectSpace.count_objects
  puts "gc[minor]: #{stats[:minor_gc_count]}, gc[major]: #{stats[:major_gc_count]}, objects: #{objects[:TOTAL] - objects[:FREE]}, memsize: #{(ObjectSpace.memsize_of_all / 1048576.0).round(3)}MB, #{collection.name}: #{ObjectSpace.each_object(collection.model).count}"
end

#record_created(record) ⇒ Object



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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 28

def record_created(record)
  print_stats if @i % sample_size == 0
  @i += 1
end

#record_failed(record, hash) ⇒ Object



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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 33

def record_failed(record, hash)
  print_stats if @i % sample_size == 0
  @i += 1
end

#start_collection(collection) ⇒ Object



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# File 'lib/abstract_importer/reporters/performance_reporter.rb', line 15

def start_collection(collection)
  super
  @collection = collection
  @major_gc_runs = GC.stat[:major_gc_count]
  @i = 0
end