dba诊断之IO

--查看占用系统io较大的session

SELECT se.sid,se.serial#,pr.SPID,se.username,se.status,se.terminal,se.program,se.MODULE,
se.sql_address,st.event,st.p1text,si.physical_reads,si.block_changes
FROM v$session se,
v$session_wait st,v$sess_io si,v$process pr
WHERE st.sid=se.sid
AND st.sid=si.sid
AND se.PADDR=pr.ADDR
AND se.sid>6
AND st.wait_time=0
AND st.event NOT LIKE '%SQL%'
ORDER BY physical_reads DESC