SqlServer performance optimization, see the CPU, large memory footprint of the session and SQL statements

1, check the CPU usage of the session and the highest amount of SQL statements

 

select spid,cmd,cpu,physical_io,memusage,

(select top 1 [text] from ::fn_get_sql(sql_handle)) sql_text

from master..sysprocesses order by cpu desc,physical_io desc

 

2, view the cache reuse fewer, large memory footprint of SQL statements

 

SELECT TOP 100 usecounts, objtype, p.size_in_bytes,[sql].[text] 

FROM sys.dm_exec_cached_plans p OUTER APPLY sys.dm_exec_sql_text (p.plan_handle) sql 

ORDER BY usecounts,p.size_in_bytes  desc