RE: Re: wierd runstats

From: Cary Millsap <cary.millsap_at_hotsos.com>
Date: Tue, 23 Mar 2004 23:35:20 -0600
Message-ID: <007b01c41161$cff2eb00$13fea8c0@CVMLAP02>

If I recall correctly, runstats does show a CPU time statistic /if/ it's different between run1 and run2. But don't bank on my recollection--check the script and its data sources.

Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com
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-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of ryan.gaffuri_at_cox.net Sent: Tuesday, March 23, 2004 1:46 PM
To: oracle-l_at_freelists.org
Subject: Re: Re: wierd runstats_pkg report

which view do i get cpu usage from?
>
> From: "Jonathan Lewis" <jonathan_at_jlcomp.demon.co.uk>
> Date: 2004/03/23 Tue AM 10:26:51 EST
> To: <oracle-l_at_freelists.org>
> Subject: Re: wierd runstats_pkg report
>
>
> You don't have CPU usage in the stats.
> The second run may be using far more CPU
> than the first, despite doing less latching.
>
> Regards
>
> Jonathan Lewis
> http://www.jlcomp.demon.co.uk
>
> The Co-operative Oracle Users' FAQ
> http://www.jlcomp.demon.co.uk/faq/ind_faq.html
>
> April 2004 Iceland
> June 2004 UK - Optimising Oracle Seminar
>
>
> ----- Original Message -----
> From: <ryan.gaffuri_at_cox.net>
> To: <oracle-l_at_freelists.org>
> Sent: Tuesday, March 23, 2004 2:40 PM
> Subject: wierd runstats_pkg report
>
>
> : anyone ever see this much of a difference in latch contention and
have the
> query which uses more resources return faster? All I did was flip the
join
> order. I can re-write the query and post it later.
> :
> : just curious if this has happened to anyone.
> :
> : SQL> exec runstats_pkg.rs_stop(500);
> : Run1 ran in 1432 hsecs
> : Run2 ran in 1740 hsecs
> : run 1 ran in 82.3% of the time
> :
> : Name Run1 Run2 Diff
> : STAT...buffer is not pinned co 2,233 1,570 -663
> : LATCH.library cache pin alloca 1,095 233 -862
> : LATCH.library cache pin 1,784 347 -1,437
> : STAT...buffer is pinned count 3,303 1,768 -1,535
> : STAT...index fetch by key 1,571 3 -1,568
> : LATCH.shared pool 2,598 570 -2,028
> : LATCH.library cache 3,423 835 -2,588
> : STAT...consistent gets - exami 3,406 144 -3,262
> : STAT...recursive calls 3,709 406 -3,303
> : STAT...consistent gets 5,502 1,787 -3,715
> : STAT...session logical reads 6,049 2,334 -3,715
> : LATCH.cache buffers chains 10,692 6,384 -4,308
> : STAT...session uga memory 7,936 0 -7,936
> :
> : Run1 latches total versus runs -- difference and pct
> : Run1 Run2 Diff Pct
> : 23,389 11,135 -12,254 210.05%
> :
> : PL/SQL procedure successfully completed.
>
>
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Received on Tue Mar 23 2004 - 23:34:28 CST

RE: Re: wierd runstats_pkg report