Folks During internal 2 Node RAC Benchmark OLTP Nature Transaction Runs, following are the TOP Events from 2 Statspack. From the Manual:- "The V$SESSION_WAIT view to identify objects and data blocks with contention. The gc wait events contain the file and block number for a block request in p1 and p2, respectively. An additional segment statistic, gc buffer busy, has been added to quickly determine the "busy" objects without recourse to the query on V$SESSION_WAIT mentioned earlier." Qs 1) How can the "gc buffer busy" wait be reduced after identifying the respective "busy" Objects? Qs 2) Will Table Partitioning help? Qs 3) Should Transactions be grouped Logically so that Transactions Hit different Data Blocks on the 2 Nodes? Top 5 Timed Events Avg %Total ~~~~~~~~~~~~~~~~~~ wait Call Event Waits Time (s) (ms) Time ----------------------------------------- ------------ ----------- ------ ------ CPU time 6,557 44.7 gc buffer busy 188,726 3,845 20 26.2 gc current block busy 46,827 1,213 26 8.3 enq: TX - index contention 34,055 1,094 32 7.5 gc current block 2-way 451,989 360 1 2.5 ------------------------------------------------------------- Configuration 10gR2 Solaris 10 Veritas CFS 5.0 Banking Product Will Share Statspack etc with anybody Cheers **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***