LOCALLY MANAGED EXTENT PERFORMANCE

From: Wolfson Larry - lwolfs <lawrence.wolfson_at_acxiom.com>
Date: Fri, 22 Apr 2005 23:24:12 -0500
Message-ID: <B39B7B7D8C8CEA419D0ED45FD7FA4C5347CC74@CWYMSX06.Corp.Acxiom.net>

Hi guys!         

        Anyone seen any issues with large locally mananged extents?

        Recently I noticed one of my applications taking a long time to do truncates.         

        And an index rebuild where I increased the locally managed extent size from 16K took almost an hour for 58,000 extents when larger indexes (and extents) only took 3-4 minutes.

        I once had a purchased app using a 16K extent size for huge tables took 2 hours and 7 minutes to do a truncate on just one table (dictionary managed). I killed it the first time after 45 minutes cause I thought it was hung up somewhere else.

        Not sure why it was set to 16K in the first place. Good for testing I guess.

	Thanks
	Larry

	


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Received on Sat Apr 23 2005 - 00:30:02 CDT