SQL: DMVs

 Got this from the web:

To identify the most costly queries.


SELECT TOP 20  qs.sql_handle,
 qs.execution_count,
 qs.total_worker_time AS Total_CPU,
 total_CPU_inSeconds = --Converted from microseconds
 qs.total_worker_time/1000000,
 average_CPU_inSeconds = --Converted from microseconds
 (qs.total_worker_time/1000000) / qs.execution_count,
 qs.total_elapsed_time,
 total_elapsed_time_inSeconds = --Converted from microseconds
 qs.total_elapsed_time/1000000,
 st.text,
 qp.query_plan
from
 sys.dm_exec_query_stats as qs
 CROSS APPLY sys.dm_exec_sql_text(qs.sql_handle) as st
 cross apply sys.dm_exec_query_plan (qs.plan_handle) as qp
ORDER BY qs.total_worker_time desc



http://forums.iis.net/t/1146821.aspx?w3wp+exe+high+cpu+usage