I think it's probably time spent preempted, waiting either in the CPU = run queue or swapped out. If it were practically any OS other than Windows, = it would be relatively easy to get corroborating evidence from the OS about involuntary context switch counts, average CPU run queue lengths, = swap-out counts, and such as that. But on Windows, I'm not sure. I guess the search begins at www.sysinternals.com.... Cary Millsap Hotsos Enterprises, Ltd. http://www.hotsos.com * Nullius in verba * Upcoming events: - Performance Diagnosis 101: 8/10 Boston, 9/14 San Francisco, 10/5 = Charlotte - SQL Optimization 101: 7/26 Washington DC, 8/16 Minneapolis, 9/20 = Hartford - Hotsos Symposium 2005: March 6-10 Dallas - Visit www.hotsos.com for schedule details... -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx = [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Paul Baumgartel Sent: Monday, August 02, 2004 4:11 PM To: oracle-l@xxxxxxxxxxxxx Subject: Confirmation of trace data List-- Is there anything I'm missing here? The following SQL is taking 6 to 8 seconds of elapsed time to run. There are *no* wait events in the trace file (all trace data connected with this SQL appears below).=20 Total CPU for the operations is about .12 seconds, yet as you can see, the elapsed time for each fetch is 6 to 8 seconds. This SQL is running during a load test; there are approximately 100 other sessions on the server (Windows 2K, dual-hyper-threaded CPU, about 2 GB of memory allotted to Oracle) and at times the CPUs are pegged at 100%. Oracle9iR2. Given that I see no wait events, can I conclude that the elapsed time is due to waiting for CPU service? Is the fact that I'm joining to DBA_ROLE_PRIVS problematic? =20 TIA. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D PARSING IN CURSOR #6 len=3D142 dep=3D2 uid=3D828 oct=3D3 lid=3D828 = tim=3D3027624861 hv=3D2231874444 ad=3D'6fd24b08' SELECT t1.schema_name from tsc_schemata t1, dba_role_privs t2 where t2.grantee =3D :b1 and t1.application_role =3D t2.granted_role END OF STMT PARSE = #6:c=3D0,e=3D92,p=3D0,cr=3D0,cu=3D0,mis=3D0,r=3D0,dep=3D2,og=3D4,tim=3D30= 27624847 EXEC = #6:c=3D0,e=3D201,p=3D0,cr=3D0,cu=3D0,mis=3D0,r=3D0,dep=3D2,og=3D4,tim=3D3= 027677087 FETCH #6:c=3D31250,e=3D8150816,p=3D0,cr=3D53,cu=3D0,mis=3D0,r=3D1,dep=3D2,og=3D= 4,tim=3D3035838225 EXEC = #6:c=3D0,e=3D101,p=3D0,cr=3D0,cu=3D0,mis=3D0,r=3D0,dep=3D2,og=3D4,tim=3D3= 036090408 FETCH #6:c=3D93750,e=3D6570233,p=3D0,cr=3D53,cu=3D0,mis=3D0,r=3D1,dep=3D2,og=3D= 4,tim=3D3042667603 =09 __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo=20 ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html ----------------------------------------------------------------- ---------------------------------------------------------------- Please see the official ORACLE-L FAQ: http://www.orafaq.com ---------------------------------------------------------------- To unsubscribe send email to: oracle-l-request@xxxxxxxxxxxxx put 'unsubscribe' in the subject line. -- Archives are at //www.freelists.org/archives/oracle-l/ FAQ is at //www.freelists.org/help/fom-serve/cache/1.html -----------------------------------------------------------------