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2018. 10. 27. 22:45
SQL SERVER
SELECT TOP 10
wait_type ,
max_wait_time_ms wait_time_ms ,
signal_wait_time_ms ,
wait_time_ms - signal_wait_time_ms AS resource_wait_time_ms ,
100.0 * wait_time_ms / SUM( wait_time_ms) OVER ( )
AS percent_total_waits ,
100.0 * signal_wait_time_ms / SUM( signal_wait_time_ms) OVER ( )
AS percent_total_signal_waits ,
100.0 * ( wait_time_ms - signal_wait_time_ms )
/ SUM (wait_time_ms) OVER ( ) AS percent_total_resource_waits
FROM sys .dm_os_wait_stats
WHERE wait_time_ms > 0 -- remove zero wait_time
AND wait_type NOT IN -- filter out additional irrelevant waits
( 'SLEEP_TASK' , 'BROKER_TASK_STOP' , 'BROKER_TO_FLUSH' ,
'SQLTRACE_BUFFER_FLUSH' ,'CLR_AUTO_EVENT', 'CLR_MANUAL_EVENT',
'LAZYWRITER_SLEEP' , 'SLEEP_SYSTEMTASK' , 'SLEEP_BPOOL_FLUSH' ,
'BROKER_EVENTHANDLER' , 'XE_DISPATCHER_WAIT' , 'FT_IFTSHC_MUTEX' ,
'CHECKPOINT_QUEUE' , 'FT_IFTS_SCHEDULER_IDLE_WAIT' ,
'BROKER_TRANSMITTER' , 'FT_IFTSHC_MUTEX' , 'KSOURCE_WAKEUP' ,
'LAZYWRITER_SLEEP' , 'LOGMGR_QUEUE' , 'ONDEMAND_TASK_QUEUE' ,
'REQUEST_FOR_DEADLOCK_SEARCH' , 'XE_TIMER_EVENT' , 'BAD_PAGE_PROCESS' ,
'DBMIRROR_EVENTS_QUEUE' , 'BROKER_RECEIVE_WAITFOR' ,
'PREEMPTIVE_OS_GETPROCADDRESS' , 'PREEMPTIVE_OS_AUTHENTICATIONOPS' ,
'WAITFOR', 'DISPATCHER_QUEUE_SEMAPHORE', 'XE_DISPATCHER_JOIN',
'RESOURCE_QUEUE' )
ORDER BY wait_time_ms DESC