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Bug #19901
closedModule clone memory leak
Description
GitHub PR: https://github.com/ruby/ruby/pull/8503
reproduction:
m = Module.new
20.times do
100_000.times do
m.clone
end
puts `ps -o rss= -p #{$$}`
end
before:
21544
24708
27860
31024
33928
37360
40264
43432
46600
49768
52936
55840
59008
62176
65344
68512
71680
74584
77752
80920
after:
18808
18808
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
18872
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