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Re: kolccst obj: large streams pool memory segment

From: Rajeev Prabhakar <rprabha01_at_gmail.com>
Date: Thu, 4 Oct 2007 11:40:38 -0400
Message-ID: <2ba656800710040840r266fb293x98d001c89d7cf142@mail.gmail.com>


Charles

From what I could find, it looks like the "kolccst obj" are used to maintain the streams heap collection.

Rajeev

On 10/4/07, Charles Schultz <sacrophyte_at_gmail.com> wrote:
>
> Thanks. I found one bug (*5058318*).
>
> What does kolccst mean? I am assuming that KO is the same for all those.
> Kernel Operations? Kernel Optimizer?
>
> On 10/4/07, Yasin Baskan <yasin.baskan_at_yapikredi.com.tr> wrote:
> >
> > Did you search Metalink for "kolccst obj"? It reports several bugs
> > related to memory leaks in Streams.
> >
> >
> >
> > *From:* oracle-l-bounce_at_freelists.org [mailto:
> > oracle-l-bounce_at_freelists.org] *On Behalf Of *Charles Schultz
> > *Sent:* Thursday, October 04, 2007 4:04 PM
> > *To:* oracle-l
> > *Subject:* kolccst obj: large streams pool memory segment
> >
> >
> >
> > Anyone know where I can find more information about this KOLCCST object?
> > And other KO objects for that matter?
> >
> > SQL > select * from (select * from v$sgastat where pool = 'streams pool'
> > order by bytes desc) where rownum < 6;
> >
> > POOL NAME BYTES
> > ------------ ---------------------------------------- ----------
> > streams pool kolccst obj 1987055480
> > streams pool kol raw 465430552
> > streams pool kolcalm coll 464969704
> > streams pool koicnfadt adt attr 419245184
> > streams pool kol vstring 259053352
> >
> > Kinda curious why we are eating so much memory. This is a downstream
> > database, so I expect to be using the Streams Pool. Perhaps there is a
> > perfectly valid reason for this, and in that case I would like to learn
> > about it.
> >
> > --
> > Charles Schultz
> >
> >
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>
> --
> Charles Schultz

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Received on Thu Oct 04 2007 - 10:40:38 CDT

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