Hola,
Debería encontrar cuáles de los eventos de espera están en la base de datos de SQL Server.
Para resolver la lentitud de la base de datos de SQL Server, debe encontrar qué eventos de espera existen en la base de datos.
Puede encontrar eventos de espera de la base de datos con la siguiente consulta.
with waits as (select wait_type, wait_time_ms / 1000.0 as waits, (wait_time_ms - signal_wait_time_ms) / 1000.0 as resources, signal_wait_time_ms / 1000.0 as signals, waiting_tasks_count as waitcount, 100.0 * wait_time_ms / sum (wait_time_ms) over() as percentage, row_number() over(order by wait_time_ms desc) as rownum from sys.dm_os_wait_stats where wait_type not in ( N'CLR_SEMAPHORE', N'LAZYWRITER_SLEEP', N'RESOURCE_QUEUE', N'SQLTRACE_BUFFER_FLUSH', N'SLEEP_TASK', N'SLEEP_SYSTEMTASK', N'WAITFOR', N'HADR_FILESTREAM_IOMGR_IOCOMPLETION', N'CHECKPOINT_QUEUE', N'REQUEST_FOR_DEADLOCK_SEARCH', N'XE_TIMER_EVENT', N'XE_DISPATCHER_JOIN', N'LOGMGR_QUEUE', N'FT_IFTS_SCHEDULER_IDLE_WAIT', N'BROKER_TASK_STOP', N'CLR_MANUAL_EVENT', N'CLR_AUTO_EVENT', N'DISPATCHER_QUEUE_SEMAPHORE', N'TRACEWRITE', N'XE_DISPATCHER_WAIT', N'BROKER_TO_FLUSH', N'BROKER_EVENTHANDLER', N'FT_IFTSHC_MUTEX', N'SQLTRACE_INCREMENTAL_FLUSH_SLEEP', N'DIRTY_PAGE_POLL', N'SP_SERVER_DIAGNOSTICS_SLEEP') ) select w1.wait_type as waittype, cast (w1.waits as decimal(14, 2)) wait_s, cast (w1.resources as decimal(14, 2)) resource_s, cast (w1.signals as decimal(14, 2)) signal_s, w1.waitcount wait_count, cast (w1.percentage as decimal(4, 2)) percentage, cast ((w1.waits / w1.waitcount) as decimal (14, 4)) avgWait_s, cast ((w1.resources / w1.waitcount) as decimal (14, 4)) avgResource_s, cast ((w1.signals / w1.waitcount) as decimal (14, 4)) avgSignal_s from waits as w1 inner join waits as w2 on w2.rownum <= w1.rownum group by w1.rownum, w1.wait_type, w1.waits, w1.resources, w1.signals, w1.waitcount, w1.percentage having sum (w2.percentage) - w1.percentage < 95; -- percentage threshold
