Hi DBA's, We are running Oracle 805 on NT in ARCHIVELOG MODE. I run the following script to list CPU usage by thread: column program format a50 column username format a12 spool C:\WINNT\Profiles\aweatherburnedb\Desktop\DBA\NT_CPU_usage.out select p.spid thread, s.username, decode(nvl(p.background,0),1,bg.description, s.program) program, ss.value/100 CPU,physical_reads disk_io from v$process p, v$session s, v$sesstat ss, v$sess_io si, v$bgprocess bg where s.paddr=p.addr and ss.sid=s.sid and ss.statistic#=12 and si.sid=s.sid and bg.paddr(+)=p.addr order by ss.value desc; spool off This is the report: THREAD USERNAME PROGRAM CPU DISK_IO --------- ------------ -------------------------------------------------- --------- --------- 000C8 CASTILOL D:\orant\BIN\RWRBE60.exe 112.42 132277 001AC CASTILOW ORACLE80.EXE (P000) 67.23 0 001C0 PEREZM D:\orant\BIN\RWRBE60.exe 60.11 120613 001C2 CASTILOW ORACLE80.EXE (P001) 55.95 0 001DF CASTILOW ORACLE80.EXE (P002) 33.4 5 00175 CASTILOW ORACLE80.EXE (P003) 30.1 5 001E2 MKENZIEL C:\WINNT\Profiles\All Users\Desktop\sigtas.lnk 27.77 257276 000DC CASTILOW C:\WINNT\Profiles\castillowm\Desktop\Sigtas Belize 12.69 40611 Sorry about the formatting. Nevertheless, what I'm trying to get a handle on is the CPU column. Notice the first row, thread 000C8 is using 112.42 ? of CPU. Looking at the SQL statement v$sesstat provides VALUE which are numbers from 0 to 438532196. This value is divided by 100 to get the CPU value. I still don't know what the number in "v$sesstat VALUE" represents? Also from which table is the value for Disk_IO (Physical Reads) retrieved? Thanks in advance for your time. Denmark Weatherburne "Knowledge is power, but it is only useful if it is shared!" _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Denmark Weatherburne INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).