Looks like you are peforming a full table scan of a rather large table. 67,207,044 rows. I'd start looking there. Bradd Piontek Oracle Blog: http://piontekdd.blogspot.com Linked In: http://www.linkedin.com/in/piontekdd On Fri, Aug 8, 2008 at 8:36 PM, Ajay Thotangare <ajayoraclel@xxxxxxxxx>wrote: > Hi List, > I need help in solving performance problem of a query. My database is > 10.2.0.3 on HP-UX Itanium. > I traced the session during the run and noticed the session is using very > high CPU but the wait event in v$session shows "SQL*Net message from > client". > In top(UNIX command) this session is the top most. Not able to interpret > whats happening. > Below is the trace details > call count cpu elapsed disk query current > rows > ------- ------ -------- ---------- ---------- ---------- ---------- > ---------- > Parse 1 0.00 0.00 0 0 > 0 0 > Execute 13266 25.92 28.85 0 0 > 0 0 > Fetch 13267 1768.47 1875.36 47 67207044 0 > 23592 > ------- ------ -------- ---------- ---------- ---------- ---------- > ---------- > total 26534 1794.39 1904.21 47 67207044 0 > 23592 > Misses in library cache during parse: 0 > Optimizer mode: ALL_ROWS > Parsing user id: 998 > Noticed fetch is using 1768.47 CPU of the elapsed time 1875.36. > Any help appreciated. > --regards, > Ajay > >