EF Bulk Insert

http://weblog.west-wind.com/posts/2013/Dec/22/Entity-Framework-and-slow-bulk-INSERTs

http://stackoverflow.com/questions/6107206/improving-bulk-insert-performance-in-entity-framework

http://stackoverflow.com/questions/5940225/fastest-way-of-inserting-in-entity-framework

https://efbulkinsert.codeplex.com/