Module: GCCounter

Defined in:
lib/steep.rb

Overview

klasses = [

# Steep::Interface::MethodType

] #: Array

klasses.each do |klass|

klass.instance_eval do
  def self.new(*_a, **_b, &_c)
    super
  end
end

end

Class Method Summary collapse

Class Method Details

.count_objects(title, regexp = /^Steep/, skip: false) ⇒ Object 



327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
 
# File 'lib/steep.rb', line 327

def count_objects(title, regexp = /^Steep/, skip: false)
  if ENV["COUNT_GC_OBJECTS"] && !skip
    unless GC.disable
      GC.start(immediate_sweep: true, immediate_mark: true, full_mark: true)

      begin
        yield
      ensure
        Steep.logger.fatal "===== #{title} ==============================="

        klasses = [] #: Array[Class]

        ObjectSpace.each_object(Class) do |klass|
          if (klass.name || "") =~ regexp
            klasses << klass
          end
        end

        before = {} #: Hash[Class, Integer]

        klasses.each do |klass|
          count = ObjectSpace.each_object(klass).count
          before[klass] = count
        end

        GC.start(immediate_sweep: true, immediate_mark: true, full_mark: true)

        gceds = [] #: Array[[Class, Integer]]

        klasses.each do |klass|
          count = ObjectSpace.each_object(klass).count
          gced = (before[klass] || 0) - count

          gceds << [klass, gced] if gced > 0
        end

        gceds.sort_by! {|_, count| -count }
        gceds.each do |klass, count|
          Steep.logger.fatal { "#{klass.name} => #{count}"}
        end

        GC.enable
      end
    else
      yield
    end
  else
    yield
  end
end