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adamsanderson/object_space_filter.rb

Created May 27, 2009 16:59
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little rails filter to track down object creation
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object_space_filter.rb
around_filter do |controller, action|
delta = Hash.new{|h,k| h[k] = 0}
ObjectSpace.each_object{|o| delta[o.class] -= 1}
action.call
GC.start
ObjectSpace.each_object{|o| delta[o.class] += 1}
delta.sort_by{|cls, count| -count}[0...25].each do |cls, count|
logger.info("%6d: %s\n" % [count,cls.to_s])
end
true
end
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