Check perfmon to see if maybe the SQL server is just totally out of memory. There should be no logical difference between @table and #table, but the second actually creates a database object while ...

If the transaction log and database are in the same device you can't do a transaction log dump. In this case you need do a Truncate Log on Checkpoint.

SQL Server 2014 In-Memory OLTP introduces two new widely advertised kinds of database objects: memory-optimized tables for efficient data access, and natively compiled stored procedures for efficient ...