Query to find Oracle Process consuming most of Memory and CPU

Himanshu funoracleapps , Oracle , scripts No comments

Query to find Oracle Process consuming most of the Memory and CPU

Session consuming the most memory

SELECT a.username, a.osuser, a.program, b.spid,b.pga_used_mem, a.sid, a.serial# ,a.module,a.logon_time,a.terminal FROM v$session a, v$process b WHERE a.paddr = b.addr
order by
b.pga_used_mem desc

Session Consuming Most CPU

select
ss.username,
se.SID,
VALUE/100 cpu_usage_seconds
from
v$session ss,
v$sesstat se,
v$statname sn
where
se.STATISTIC# = sn.STATISTIC#
and
NAME like '%CPU used by this session%'
and
se.SID = ss.SID
and
ss.status='ACTIVE'
and
ss.username is not null

order by 3 desc