Re: OracleSID processes use inordinate amounts of cpu

From: Grant McCracken <gjmccrac_at_post.bell.ca>
Date: 1995/05/17
Message-ID: <gjmccrac-1705950814050001_at_ba6c6e.on.bell.ca>#1/1


In article <3ot3s0$gk7_at_fg1.plk.af.mil>, wilsons_at_mis4.plk.af.mil wrote:

> I have a user who runs create table statements which select rows from
> multiple tables which are quite large (xxx 100k rows). He claims that
> _usually_ the table gets created but when I look at what the process is
> actually accessing (using svrmgrm), all I see is con$ and tab$. The
> oracleSID process consumes inordinate amounts of the cpu on my Sparc
> Center 2000, yet seems to be doing nothing.
>
> Any ideas?

Check the users query. If it is using the cost based optimizer it may take a couple of days to run. Switching to the Rule based may reduce the time dramatically. We had similiar queries that ran for days that now run under 2 hours.
>
> --
> +------------------------------+------------------------------------+
> |Susan M. Wilson | Phone: 505-846-2423 DSN-246-2423 |
> |Computer Sciences Corp | FAX: 505-846-5114 DSN-246-5114 |
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> |3560 Aberdeen Ave SE | e-mail wilsons_at_mis4.plk.af.mil |
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> +------------------------------+------------------------------------+
 

-- 
Grant McCracken
DB Marketing - Bell Canada
Toronto, Ontario
GJMCCRAC_at_post.bell.ca
Received on Wed May 17 1995 - 00:00:00 CEST

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