SQL Server Latches and their indication of performance issues

Question

I am trying to understand a potential performance issue with our database (SQL 2008) and in particular one performance counter, SQLServer:Latches\\Total Latch Wait Time Total La

Answer 1

Reference taken from this blog:

Using sys.dm_db_index_operational_stats:

SELECT 
    OBJECT_NAME(object_id)
    ,page_latch_wait_count
    ,page_latch_wait_in_ms
    ,tree_page_latch_wait_count
    ,tree_page_latch_wait_in_ms  
    ,Page_io_latch_wait_count
    ,Page_io_latch_wait_in_ms
FROM sys.dm_db_index_operational_stats (DB_ID(), NULL, NULL, NULL)

Using sys.dm_os_latch_stats:

SELECT * FROM sys.dm_os_latch_stats  
WHERE latch_class = 'buffer'