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iblue/hax0rz teh garbage collector

Created November 13, 2013 16:16
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hax0rz teh garbage collector
def bar
GC.start
c = ObjectSpace.each_object() {}
puts "Objects definied: #{c}"
end
bar
10000.times do |i|
"sym_#{i}".to_sym
end
bar
10000.times do |i|
"sym_#{i}"
end
bar
@asaaki
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asaaki commented Nov 13, 2013

Wellknown since ages:
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/164890

@iblue
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iblue commented Nov 13, 2013

Ich dachte, die hätten es mittlerweile gefixt.

@asaaki
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asaaki commented Nov 13, 2013

Es gibt da nix zu fixen, da es ein Feature ist, dass Symbole in einer Hashmap gespeichert werden, damit man Zugriffe mit O(1) gewährleisten kann.

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