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  • sql server top 10 IO性能查询

    use master
    go
    
    select top 10 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)
    ,database_name=db.name
    ,qs.execution_count
    ,qs.total_logical_reads
    ,logical_reads_per_run=cast(qs.total_logical_reads*1.0/qs.execution_count as decimal(12,2))
    ,qs.last_logical_reads
    ,qs.total_logical_writes
    ,qs.last_logical_writes
    ,qs.total_worker_time
    ,qs.last_worker_time
    ,total_elapsed_time_in_s=qs.total_elapsed_time*1.0/1000000
    ,last_elapsed_time_in_s=qs.last_elapsed_time*1.0/1000000
    ,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
    inner join sys.databases as db
    on qp.dbid=db.database_id
    --where qs.execution_count>=100
    --order by qs.total_logical_reads/qs.execution_count desc --logical reads per run
    --order by qs.total_logical_writes/qs.execution_count desc --logical writes per run
    --order by qs.total_worker_time/qs.execution_count desc --cpu time per run
    --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
    View Code
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  • 原文地址:https://www.cnblogs.com/WindBlog/p/7911106.html
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