在压力测试过程中,不间断的按F5键执行上面的SQL语句,如果出现死锁或者堵塞现象,就会在执行结果中罗列出来。如果每次连续执行SQL,都有死锁或者堵塞出现,说明死锁或者堵塞的比较严重。
--每秒死锁数量 SELECT * FROM sys.dm_os_performance_counters WHERE counter_name LIKE 'Number of Deadlocksc%'; --查询当前阻塞 WITH CTE_SID ( BSID, SID, sql_handle ) AS ( SELECT blocking_session_id , session_id , sql_handle FROM sys.dm_exec_requests WHERE blocking_session_id <> 0 UNION ALL SELECT A.blocking_session_id , A.session_id , A.sql_handle FROM sys.dm_exec_requests A JOIN CTE_SID B ON A.SESSION_ID = B.BSID ) SELECT C.BSID , C.SID , S.login_name , S.host_name , S.status , S.cpu_time , S.memory_usage , S.last_request_start_time , S.last_request_end_time , S.logical_reads , S.row_count , q.text FROM CTE_SID C JOIN sys.dm_exec_sessions S ON C.sid = s.session_id CROSS APPLY sys.dm_exec_sql_text(C.sql_handle) Q ORDER BY sid