41 lines
968 B
Ruby
41 lines
968 B
Ruby
# frozen_string_literal: true
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# to be used to compare ruby heaps generated in 2.1
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# can isolate memory leaks
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#
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# rbtrace -p 15193 -e 'Thread.new{require "objspace"; ObjectSpace.trace_object_allocations_start; GC.start(full_mark: true); ObjectSpace.dump_all(output: File.open("heap.json","w"))}.join'
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#
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#
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require "json"
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if ARGV.length != 2
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puts "Usage: diff_heaps [ORIG.json] [AFTER.json]"
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exit 1
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end
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origs = Set.new
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File
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.open(ARGV[0], "r")
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.each_line do |line|
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parsed = JSON.parse(line)
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origs << parsed["address"] if parsed && parsed["address"]
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end
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diff = []
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File
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.open(ARGV[1], "r")
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.each_line do |line|
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parsed = JSON.parse(line)
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if parsed && parsed["address"]
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diff << parsed if origs.exclude? parsed["address"]
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end
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end
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diff
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.group_by { |x| [x["type"], x["file"], x["line"]] }
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.map { |x, y| [x, y.count] }
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.sort { |a, b| b[1] <=> a[1] }
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.each { |x, y| puts "Leaked #{y} #{x[0]} objects at: #{x[1]}:#{x[2]}" }
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