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