RE: Which session is killing performance?

Since you are on Weenie-doze:
go to task manager (3 finger salute [alt+ctrl+delete]), and order by CPU descending, then look at the PID, make a note of it, and run this script, entering the PID:

column log_tim format a18
col username format a12
col osuser for a12
set linesize 132
set verify off
set pagesize 80
col program for a20
accept id prompt 'Enter shadow process ID : ' select osuser, a.program, sid, a.serial#, sql_address, prev_sql_Addr, taddr,
to_char(logon_time,'DD:HH24:MI:SS') log_tim, spid from v$session a, v$process b
where b.spid=('&&id') and a.paddr = b.addr(+) and a.type !='BACKGROUND' order by logon_time desc ;

Once you have SQL_ADDRESS, then run THIS script, copying and pasting the SQL_ADDRESS value:

set pagesize 200
set verify off
accept adr char prompt "Enter SQL_ADDRESS for session whose SQL you wish to see : "
select ltrim(rtrim(sql_text)) from v$sqltext where address = '&&adr' order by piece;

Or if you have the PID, launch Toad, and get the Trace/Kill view and filter it for the PID, it will show you the SQL in the bottom pane. Much quicker with TOAD.

Regards :

Ferenc Mantfeld

-----Original Message-----

From:	Craig Healey [SMTP:C.Healey_at_hhsuk.com]
Sent:	Friday, January 10, 2003 1:40 AM
To:	Multiple recipients of list ORACLE-L
Subject:	Which session is killing performance?

Newbie question time:

We have 8.1.7 running on Win 2000 with about 50 users. The system has just slowed down dramatically for about 5 minutes, with lots of user complaints. I suspect one of the developers was loading data or doing some DML. But how do I find who it is? I found a small piece of code on AskTom that returned a user whose SQL has been running longer that x seconds, but this wont necessarily be the user I'm looking for, will it?. Is there something in v$session I should be looking at?

Any help appreciated

Craig Healey

This email and any files transmitted with it are confidential and intended solely
for the use of the individual or entity to whom they are addressed and may contain
confidential and/or privileged material. Any review, retransmission, dissemination
or other use of, or taking of any action in reliance upon, this information by
persons or entities other than the intended recipient is prohibited.  Statements
and opinions expressed in this e-mail may not represent those of the company.

If you have received this email in error please notify system.administrator_at_hhsuk.com

This footnote also confirms that this email message has been swept by MIMEsweeper
for the presence of computer viruses (www.mimesweeper.com)

--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Craig Healey
  INET: C.Healey_at_hhsuk.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L


(or the name of mailing list you want to be removed from).  You may

also send the HELP command for other information (like subscribing).

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: mantfield
  INET: mantfield_at_connexus.net.au

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L


(or the name of mailing list you want to be removed from).  You may

also send the HELP command for other information (like subscribing).