chill_notes/附件/2026/个人知识库/数据库/Cpu 占用过高.md

SELECT TOP 10

total_worker_time/execution_count AS avg_cpu_cost, plan_handle, execution_count, (SELECT SUBSTRING(text, statement_start_offset/2 + 1, (CASE WHEN statement_end_offset = -1 THEN LEN(CONVERT(nvarchar(max), text)) * 2 ELSE statement_end_offset

END - statement_start_offset)/2)
FROM sys.dm_exec_sql_text(sql_handle)) AS query_text
FROM sys.dm_exec_query_stats

ORDER BY [avg_cpu_cost] DESC