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Come visualizzare le 50 query più pesanti - Sql Server
SELECT TOP 50 SUBSTRING(qt.TEXT, (qs.statement_start_offset/2)+1,
((CASE qs.statement_end_offset
WHEN -1 THEN DATALENGTH(qt.TEXT)
ELSE qs.statement_end_offset
END - qs.statement_start_offset)/2)+1),
qs .execution_count,
qs .total_logical_reads, qs.last_logical_reads,
qs .total_logical_writes, qs.last_logical_writes,
qs .total_worker_time,
qs .last_worker_time,
qs .total_elapsed_time/1000000 total_elapsed_time_in_S,
qs .last_elapsed_time/1000000 last_elapsed_time_in_S,
qs .last_execution_time,
qp .query_plan
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) qt
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
ORDER BY qs.total_logical_reads DESC -- logical reads
-- ORDER BY qs.total_logical_writes DESC -- logical writes
-- ORDER BY qs.total_worker_time DESC -- CPU time
martedì, 14 feb 2012 Ore. 14.04
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