How to find CPU_time being used by currently executing query

Question

Hello,
Is there a way to know how much CPU is being used by a query that is currently being runninng? I tried to look into dm_exec_sessions or even dm_exec_requests dmv but it looks like CPU_time stat doesn't get updated to those views until the query actually
completes or get cancelled. Sometimes, it's important to find out among the actively running queries, which session/query is consuming the most CPU and there seem to be no way to find out that stat until the query actually completes or get cancelled. I was
testing it on SQL 2008 r2 but behavior could be same on 2014 or 2012.
Appreciate any feedback.
thanks,
Raj

Answer 1

I have been using Adam's great utility
Who Is Active? v10.00 (2010-10-21)
(C) 2007-2010, Adam Machanic
Updates: http://sqlblog.com/blogs/adam_machanic/archive/tags/who+is+active/default.aspx
"Beta" Builds: http://sqlblog.com/files/folders/beta/tags/who+is+active/default.aspx
License: 
Who is Active? is free to download and use for personal, educational, and internal 
corporate purposes, provided that this header is preserved. Redistribution or sale 
of Who is Active?, in whole or in part, is prohibited without the author's express 
written consent.
CPU filter
/*CPU*/
EXEC dbo.sp_WhoIsActive
@get_transaction_info=0,
@output_column_list ='[session_id][start_time]
                  [cpu][status][context_switches][wait_info][program_name]
                 [database_name][sql_text][host_name][open_tran_count]', 
@sort_order='[CPU]DESC'
/*delta*/
EXEC dbo.sp_WhoIsActive
@delta_interval=5, @get_task_info = 2,
@output_column_list ='[session_id][start_time][context switches]
                  [CPU_delta][reads_delta][writes_delta][tempdb_writes_delta]
                  [tempdb_reads_delta][tempdb_current_delta]
                  [database_name][host_name][login_name]', 
@sort_order='[CPU_delta]DESC'
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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