Re: Getting a Library Cache dump
- From: Mladen Gogala <mladen@xxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 12 Feb 2004 08:49:35 -0500
With the library cache, you can see object structures with the level 4,
which means that if you want to see _kgl structures, you need to do
something like:
ORADEBUG DUMP LIBRARY_CACHE 4
On 02/12/2004 04:46:10 AM, Hemant K Chitale wrote:
>
> I am encountering Library Cache latch contention.
>
> On the 4 CPU server, I have 5 Child latches to the
> Library Cache Latch. I need to verify if only one
> particular latch is busier.
>
> Is a "alter session set events 'immediate trace name library_cache
> level 3';"
> the right command to dump to a trace file ?
> The trace file shows multiple entries for
> "latch=0" to "latch=4"
> I did a count on the trace file and got
> 7528 entries for latch=0
> 8002 entries for latch=1
> 8137 entries for latch=2
> 7926 entries for latch=3
> 7726 entries for latch=4
>
> Is my interpretation that the latches are equally busy
> valid ?
> Would _kgl_latch_count help ?
>
> Hemant K Chitale
> http://hkchital.tripod.com
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