Library cache lock and library cache latch

From: Paul Baumgartel <treegarden_at_yahoo.com>
Date: Fri, 30 Aug 2002 08:08:20 -0800
Message-ID: <F001.004C41D3.20020830080820@fatcity.com>

Good morning, everyone.

A running Oracle server contains both library cache locks and library cache latches. What are the criteria for using a lock vs. a latch for protecting objects in the cache? For example, at the moment we're trying to create a new version of a package, but a running session calls it constantly; the wait event references the library cache lock. I've seen waits on the library cache latch in similar situations (at least I think I have; my memory may be failing me!).

TIA!   

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Paul Baumgartel, Adept Computer Associates, Inc. paul.baumgartel_at_aya.yale.edu

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Author: Paul Baumgartel
  INET: treegarden_at_yahoo.com

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