RE: System running slow

From: <dieter.oberkofler_at_chello.at>
Date: Wed, 24 Jan 2001 23:46:37 +0100
Message-Id: <10751.127422@fatcity.com>

Hi Mitchell!

As others already mentioned, I would also start by finding the session and statements that consume the most resources.

Having a look to the virtual tables v$sesstat and v$sqlarea is always a good start to see where the problems might came from.

You might also want to have a look at a shareware tool I'm offering named Top100 that can be found at http://www.materialdreams.com/products.html and can help you in identifying the statements you need to tune.

Regards

email: info_at_materialdreams.com
web: www.materialdreams.com

Here's something you can do easily:

Use Top Session (comes with Enterprise Manager), find the session using the most resources, click on its properties, view its SQL, and tell the guy to get off the system, or tune his SQL.

The short answer, hope it helps.

Yosi

-----Original Message-----
From: root_at_fatcity.com [mailto:root_at_fatcity.com]On Behalf Of Mitchell Sent: Tuesday, January 23, 2001 10:05 PM To: Multiple recipients of list ORACLE-L Subject: System running slow

Hi Guys

I am running following scripts when users complains system slow. Usually I found more transaction there running from a developer.

I just want to know how to explain locked_mode in v$locked_object view. Usually in my case is 3. I looked oracle Reference but it did' mention what is meaning. Anybody has any idea.

I also want to know what other dba usually do when somebody complained about SLOW .

Mitchell

attached sql

lockd.sql set pages 1000 set lines 132 select substr(do.owner, 1, 10) "Owner", substr(do.object_name, 1, 25) "Object ", lo.locked_mode, substr(lo.oracle_username, 1, 10) "Username", lpad(rtrim(substr(lo.os_user_name, 1, 8),' '),8,' ') "OS User", lo.session_id, vs.serial#, ' ' " ", lo.process, substr(to_char(vs.logon_time,'DD-MON-YY HH24:MI:SS'),1,20) "Logon Time" from dba_objects do, v$locked_object lo, v$session vs where do.object_id = lo.object_id and lo.session_id = vs.sid order by do.object_name /

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Author: Mitchell
INET: mitchell_at_comnet.ca

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