[Dancer-users] Dancer occasionally eats lots of memory

Hello guys! I have found that dancer's memory consumption is indeterminant. I am writing RESTful statistics service. Have discovered that dancer can consume lots more memory with one request than another with essentially same POST body size. Some tests: http://pastebin.com/yuy1ZKfn The output: http://pastebin.com/YDHqLzQh You can see that when I send ~12MB json string (~20MB hash in memory) dancer can consume ~ 24MB when data is sent as nested hash or ~81MB (4x!) when sent as-is. Tranfering dozens of MBs of statistics is normal in my service, so it can hit swap easily by clients mistake. What can I do to make dancer behave predictably in memory consumption? May be I am doing something wrong?