Message
Tracy,
This
is a very cursory answer... If this is the 'library cache' latch, then
there *should* be a number of entries in V$LATCH_CHILDREN. Are the figures
therein skewed in some way among the child latches? If so, you *may* have
an issue where a particular application or SQL is not using bind variables. A
look at V$SQL will reveal a lot. I would look at applications without bind
variables. Also, you may look for any Object stats (ANALZYE) that has spilled
over and is currently running during the daytime (overly zealous DBA starts off
ANALYZE because 'performance is bad'!) - this will invalidate SQLs resulting in
parsing (and thus latching).
Hth,
John Kanagaraj
DB Soft Inc
Phone: 408-970-7002
(W)
Listen to great, commercial-free christian music 24x7x365 at http://www.klove.com
** The opinions and
facts contained in this message are entirely mine and do not reflect those of my
employer or customers **
We have experienced intermittent problems (slow
response time) with our oltp database today. There appears to be a large
number of latch free events and the p2 parameter is indicating an issue with
the library cache. Any thoughts on where to go next?
American Express made the following
annotations on 01/07/2004 03:36:25
PM
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Received on Wed Jan 07 2004 - 18:34:33 CST
