setting it to true might have a very small performance impact. the
impact of not having it set is that many of the statistics you gather
for performance tuning are meaningless.
If you need to get every possible millisecond of performance, turn
timed_statistics on when you have problems and wait for the problem to
recur or turn it on for a limited time, which will with luck encompass
a relative sample of the transactions you run across
- BigP <big_planet_2000_at_hotmail.com> wrote:
> Do you guys think making times statistic =true has any performance
> impact .
> Are there any other considerations ?
>
> -Bp
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Monday, July 01, 2002 12:53 PM
>
>
> > > Depending on the version of the database, timed_statistics
> > > may be dynamic
> > > and
> > > not require a database bounce.
> >
> > True - but the timing values are meaningless unless the counters
> > (TOTAL_WAITS and TOTAL_TIMEOUTS) are reset. Only a bounce resets
> the
> > counters and switches on timing at the same time.... I wouldn't
> recommend
> > using the time values otherwise.
> >
> > John Kanagaraj
> > Oracle Applications DBA
> > DBSoft Inc
> > (W): 408-970-7002
> >
> > Want to know about a carpenter who built a bridge with two sticks
> and
> three
> > nails? Write me for details!
> >
> > ** The opinions and statements above are entirely my own and not
> those of
> my
> > employer or clients **
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author: John Kanagaraj
> > INET: john.kanagaraj_at_hds.com
> >
> > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
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> Author: BigP
> INET: big_planet_2000_at_hotmail.com
>
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--
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Received on Tue Jul 02 2002 - 00:01:34 CDT
