RE: Performance Question - High I/O per Insert
- From: ryan_gaffuri@xxxxxxxxxxx
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 11 Oct 2004 17:06:32 +0000
do you have unique and pk indexes? those cause more I/O since you have to do a
lookup for each row loaded? Your 'sequential' wait leads me to believe this.
I don't think your IO increase has anything to do with partitioning. It may
have to do with loading data out of synch with your clustering factor. This
could cause increased index maintenance, higher waits, and higher IO.
-------------- Original message --------------
> No, no triggers. I believe the high I/O is due to index maintenance.
> When I remove the indexes or run the load with direct path, the load
> screams. Thx!
>
>
> Mark
>
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