How to monitor Apps user

Question

I have an application user (login as apps owner) hammering the apps/db..using 100% CPU and 19.2% of memory.
I can get the sid,pid etc from the unix server as shown below from TOP.
I log into the application and query the Monitor Users form and can see all users and the Oracle process column.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10526 applmgr 16 0 1136m 356m 351m R 100 19.2 17:09.88 oracle
How are the data above from the server and the applications related?
Is there any other way I can get the resp and what the user is running?
Thanks

Answer 1

As you said, you can get the OS PID from top. With that you can feed the following query to get the SID:
set linesize 120
column SID format 99999
column status format a8
column osuser format a8
column username format a8
column COMMAND format 999999
column MACHINE format a6
column MODULE format a10
column SCHEMANAME format a5
column action format a8
column LOCKWAIT format a8
column action format a8
select s.sid,p.spid os_pid,s.status, s.osuser,s.username,s.COMMAND,s.MACHINE,s.MODULE,s.SERIAL#, s.SCHEMANAME, s.LOCKWAIT,s.action
from v$session s, v$process p WHERE s.paddr = p.addr and p.spid = 'your_PID_here';
With the SID sucked from the last request, you can feed the following query:
select pid, v$session.sid, v$session.serial#, v$session.username, v$session.program, to_char(logon_time,'dd-mon-yyyy hh:mm:ss'), machine from v$session, v$process where sid = 'your_SID_here' and addr=paddr;
This should give you the PID of the user which you will hopefully see from the Monitor Users screen.
You can also do this via Grid Control and its an awful lot easier.
DA