PAGELATCH_UP waits mean that sessions queue for the same page in memory, and that page can be named. This post reads the waiting sessions, turns the resource into a database, a file and a page, and tells an allocation page from an ordinary one. It then lists the fixes for tempdb and for a user database.
TempDB Performance: Five Settings to Check in SQL Server
TempDB performance depends on five settings that you can read in a few minutes: how big it is, how many data files it has, whether they match, how it grows and where it lives. Three read-only queries check each one. The post also explains what to do with the answers.
When Was SQL Server Last Restarted? – Interview Question of the Week #225
When was SQL Server last restarted? It is my first question in every Health Check, because a restart empties the DMVs and their performance history.
Memory-Optimized tempdb Metadata: Turning It On and Checking It
Diagnose memory-optimized tempdb metadata candidates, plan the required restart, verify activation, and monitor contention and memory.
SQL SERVER – Msg 2555: Cannot Move All Contents of File to Other Places to Complete the Emptyfile Operation
Removing extra TempDB files failed with Msg 2555: Cannot move all contents of file to other places to complete the emptyfile operation. Let me show you the steps.
SQL SERVER – FCB::Open Failed – TEMPDB Files Fail to be Created with Error: “CREATE FILE Encountered Operating System Error 3”
SQL Server would not start: FCB::Open failed because TempDB files could not be created, with operating system error 3. Here is how I fixed it.
When to Use sort_in_tempdb for Rebuilding Indexes? – Interview Question of the Week #207
When should you use sort_in_tempdb for rebuilding indexes? A DBA asked me in a Health Check, and the simple answer is when TempDB sits on fast, separate drives.