MSSQL Quick Performance Troubleshooting Script

quick-performance-troubleshooting-script.sql

-- MSSQL Quick Performance Troubleshooting Script 
SELECT 
     s.host_name, 
     s.program_name, 
     r.blocking_session_id 'Blk by', 
     Coalesce(Quotename(Db_name(st.dbid)) + N'.' + Quotename(Object_schema_name(st.objectid,st.dbid)) + N'.' +
     Quotename(Object_name(st.objectid,st.dbid)), '') AS command_text, 
     s.session_id, 
     r.cpu_time, 
     r.logical_reads, 
     r.reads, 
     r.status, 
     r.wait_type, 
     wait_resource, 
     r.wait_time / (1000.0) 'Wait (in sec)', 
     r.writes, 
     r.total_elapsed_time / (1000.0) 'Elapsed (in sec)', 
     SUBSTRING(st.TEXT,(r.statement_start_offset / 2) + 1, 
     ((CASE r.statement_end_offset 
          WHEN -1 
          THEN Datalength(st.TEXT) 
          ELSE r.statement_end_offset 
          END - r.statement_start_offset) / 2) + 1) AS statement_text, 
     r.command, 
     s.login_name, 
     s.last_request_end_time, 
     s.login_time, 
     r.open_transaction_count 
FROM  sys.dm_exec_sessions AS s 
JOIN sys.dm_exec_requests AS r 
ON r.session_id = s.session_id 
CROSS APPLY sys.Dm_exec_sql_text(r.sql_handle) AS st 
ORDER BY r.cpu_time DESC