Interesting options! Do we have a stress test using MongoDB? We'll need one to avoid blind "optimisations", but especially in this case we could see where this map instances are created with a profiler.

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators.
For more information on JIRA, see: http://www.atlassian.com/software/jira