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class C
attr_accessor :foo
end
short_lived_obj = C.new
if RUBY_VERSION >= "2.2.0"
GC.start(full_mark: false, immediate_mark: true, lazy_sweep: false)
end
i = 0
short_lived = ''
while i<30_000_000 # while loop 1
short_lived_obj.foo = short_lived # write barrier
i+=1
end
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