TempDB usage per active session

Lists the TempDB usage per each active session.

TempDB

TempDB

SQL Server Tempdb Usage and Bottlenecks tracked with Extended Events

How do I effectively find out if the Tempdb database is suffering from an allocation bottleneck? Should I create multiple TempDB files per core on this server to improve performance? How do I check this information programmatically?

Re-size TempDB files

Managing TempDB can be a bit tricky at times. Most people know how to increase the size, but what about reducing it? New author Amar Pogaku brings us two techniques for shrinking tempdb.

TSQL - tempdb