Re: index rebuilding performance vs sort_area_size

2003-01-13 Thread Jared Still
The increase in performance of course comes from sorting in memory and avoiding disk writes. Try running this bit of SQL before and after your tests, and record the numbers: select stat.sid, name.name name, stat.value from v$sesstat stat, v$statname name, v$session sess where stat.si

RE: index rebuilding performance vs sort_area_size

2003-01-13 Thread Govind.Arumugam
We have not seen any performance gains after setting the sort_area_size in excess of 50Mb. We have set this as a standard in our re-indexing scripts to set this to 50Mb maximum. HTH. -Original Message- Sent: Monday, January 13, 2003 3:00 PM To: Multiple recipients of list ORACLE-L Hi:

index rebuilding performance vs sort_area_size

2003-01-13 Thread Guang Mei
Hi: Today I did some small testing on our db (Oracle 8173 on Solaris 2.8) to test index rebuild (with nologging) performance vs sort_area_size. I used "alter session set sort_area_size = " to set the sort_area_size value. Nothing else was changed. The temp tablespace is 8G. There is no other a