drop deferred garbage collection

features/support/env.rb

@@ -89,12 +89,3 @@ After do |scenario|
     Capybara.send(:session_pool).delete_if { |key, value| key =~ /selenium/i }
   end
 end
-
-# # https://makandracards.com/makandra/950-speed-up-rspec-by-deferring-garbage-collection
-# require File.join(File.dirname(__FILE__), "..", "..", "spec", "support", "deferred_garbage_collection")
-# Before do
-#   DeferredGarbageCollection.start
-# end
-# After do
-#   DeferredGarbageCollection.reconsider
-# end

spec/spec_helper.rb

@@ -92,13 +92,3 @@ RSpec.configure do |config|
     AppConfig.reset_dynamic!
   end
 end
-
-# https://makandracards.com/makandra/950-speed-up-rspec-by-deferring-garbage-collection
-RSpec.configure do |config|
-  config.before(:all) do
-    DeferredGarbageCollection.start
-  end
-  config.after(:all) do
-    DeferredGarbageCollection.reconsider
-  end
-end

spec/support/deferred_garbage_collection.rb

@@ -1,41 +0,0 @@
-
-# https://makandracards.com/makandra/950-speed-up-rspec-by-deferring-garbage-collection
-class DeferredGarbageCollection
-
-  DEFERRED_GC_THRESHOLD = (ENV['DEFER_GC'] || 10.0).to_f #used to be 10.0
-
-  @@last_gc_run = Time.now
-
-  def self.start
-    return if unsupported_environment
-    GC.disable if DEFERRED_GC_THRESHOLD > 0
-  end
-
-  def self.memory_threshold
-    @mem = %x(free 2>/dev/null).to_s.split(" ")
-    return nil if @mem.empty?
-    @mem[15].to_i / (@mem[7].to_i/100)
-  end
-
-  def self.reconsider
-    return if unsupported_environment
-
-    if (percent_used = self.memory_threshold)
-      running_out_of_memory = percent_used > 90
-    else
-      running_out_of_memory = false
-    end
-
-    if( (DEFERRED_GC_THRESHOLD > 0 && Time.now - @@last_gc_run >= DEFERRED_GC_THRESHOLD) || running_out_of_memory )
-      GC.enable
-      GC.start
-      GC.disable
-      @@last_gc_run = Time.now
-    end
-  end
-
-  def self.unsupported_environment
-    ENV['TRAVIS'] # TODO: enable for ruby 1.9.3 or more RAM
-  end
-
-end