what is the difference between a parent and a child latch?
>
> From: "Bobak, Mark" <Mark.Bobak_at_il.proquest.com>
> Date: 2004/03/22 Mon AM 09:33:23 EST
> To: <oracle-l_at_freelists.org>
> Subject: RE: difference between child and parent latches?
>
> Ryan,
>
> The main difference is that for latches which there are multiples, such as cache buffers chains, there is only one parent row in v$latch_parent, whereas there is one row per latch in v$latch_children. Also, the statistics are only valid in the corresponding view. Meaning, GETS, SLEEPS, etc are only populated in v$latch_children for those latches where children are present, such as CBC. For those where there's only one, such as shared pool, that data is only populated in v$latch_parent.
>
> -Mark
>
> -----Original Message-----
> From: ryan.gaffuri_at_cox.net [mailto:ryan.gaffuri_at_cox.net]
> Sent: Monday, March 22, 2004 7:54 AM
> To: oracle-l_at_freelists.org
> Subject: difference between child and parent latches?
>
>
> I've been looking at v$latch_children and v$latch_parent and I'm having trouble seeing the differences?
>
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Received on Mon Mar 22 2004 - 11:09:41 CST
