Re: Please Advice on Performance Tuning

Hi David,

Thanks for your suggestion.
I thought TRACE,TKPROF, EXPAIN PLAN
will be the last thing thing I will do.
Because There may be lot of SQL Statement I have to select from these two Package for probable degradation. Moreover in both user same two package was recompiled.
If inefficient SQL are there in Package then it is there in both schema, so if in one user
takes 22-24 Min. then the same should happen in other user also or otherway round.
The question is what to check for the degradation ?

To add to it.

Our Oracle Server is in RAID.
Both Schema does not have any auditing or Profile (Except default)

Thanks once again. Regards.

NJN.

• Original Message ----- To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Sent: Friday, April 27, 2001 11:55 AM

> NJ,
>
> For each SQL statement in each instance, run a trace, then run tkprof
> against it with the explain option. When you compare the two, it should
> tell you what they are doing differently and what you're biggest time
> waster is.
>
> Regards,
>
> David A. Barbour
> Oracle DBA, OCP
>
> > N J Neog wrote:
> >
> > Hi all,
> >
> > We have got a Payroll Application develeoped in-house.
> >
> > It takes 30-34 Minutes to Run this Batch Application.
> > General feeling is - it should be able to process it
> > within 10-15 Minutes may be less than that.
> >
> > I am to look into this problem and give a solution to it.
> >
> > Steps I had followed as
> >
> > 1. Import the payroll user to another Oracle User in the same
> > database.
> >
> > 2. Removed unnecessary Index , Put parallelism into few
> > tables by Alter table tab1 Parallel(DEGREE 5)
> >
> > 3. Analyze the tables with compute statistics;
> >
> > 4. Run the payroll without checking any inefficient SQL or
> > wrong programming logic in the those Packages( It has only
> > two Package in it no other stand alone Procedure or function).
> >
> > Payroll under this new Oracle User runs in 22-24 Minutes, 6-9 Minutes
> > less. So, I asked Payroll Person to remove those unnecessary Index,
> > asked him to put parallelism into those tables which I had done.
> > He runs the Payroll with no Improvement at all. I asked again to
> > drop those table and recreate it with new storage parameter same
> > as the one created at New User. Still no visible Improvement.
> >
> > At this stage every table in both user has same storage parameter,same
> > index ,and also analyzed. The question is why in One User
> > it runs in 22-24 Min and in another 30-34 Min ?
> >
> > Now Please advice me what do I check or to do, so that the it time
> > takes
> > to run comes down to 22-24 Min, same as the new user.
> >
> > Oracle 8.1.4
> > Optimize goal : choose
> > Biggest table haiving record less than 60000 rows.
> >
> > Thanks in Advance
> >
> > Naba
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: David A. Barbour
> INET: dbarbour_at_nucentrix.net
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: N J Neog
  INET: njneog_at_oil.asm.nic.in

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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