1. 2015-07-01 [ruby-core:69832] [Ruby trunk - Bug #10015] Performan ruby-core daniel 2. 2015-06-08 [ruby-core:69492] [Ruby trunk - Bug #10015] Performan ruby-core karklinsh 3. 2015-03-30 [ruby-core:68684] [Ruby trunk - Bug #10015] Performan ruby-core adrien.siami 4. 2015-03-27 [ruby-core:68660] [Ruby trunk - Bug #10015] Performan ruby-core adrien.siami