gistfile1.txt

% cat /tmp/a.rb
base_length = GC.stat[:heap_length]
(base_length * 10000).times{ 'a' }
GC.start
if GC.stat[:heap_length] == base_length
  p heap_length: GC.stat[:heap_length], base_length: base_length
  p 'success'
  exit 0
else
  p heap_length: GC.stat[:heap_length], base_length: base_length
  p 'error'
  exit 1
end

-- GC.stat導入後
% ./miniruby --disable-gem -v /tmp/a.rb
ruby 2.0.0dev (2012-11-29 trunk 38120) [x86_64-linux]
{:heap_length=>446, :base_length=>24}
"error"

-- GC.stat導入前
% ./miniruby --disable-gem -v /tmp/a.rb
ruby 2.0.0dev (2012-11-29 trunk 38120) [x86_64-linux]
{:heap_length=>24, :base_length=>24}
"success"