Re: extremely high number of executions

Jared,

What do you think of those values, what should I pay attention ?

tia

Ramon

EVENT                                            TOTAL_WAITS TOTAL_TIMEOUTS
TIME_WAITED AVERAGE_WAIT
---------------------------------------- ----------- --------------         
-----------    ------------
db file sequential read                                  113400
0               277.22   .244462081
db file scattered read                                    67216
0               302.23   .449639967
smon timer                                                    4618
4610         1416823.33   30680.4532
pmon timer                                                 461116
460357        1416861.73   307.267961
rdbms ipc message                                     1464153
1390637         8499583.86        580.512
SQL*Net message from client                       7010003
0         17798435.8   253.900545
control file parallel write                                460820
0                  2.01   .000436179
control file sequential read                               3959
0                   7.95   .200808285
log file sync                                                 19345
0                 16.43   .084931507
log file sequential read                                    2427
0                 17.56   .723526988
direct path write                                         145205
0                112.74   .077641954
direct path read                                          251233
0                190.41   .075790203

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, July 31, 2002 4:13 PM

> What does this tell you?
>
> select
> event,
> total_waits,
> total_timeouts,
> time_waited/100 time_waited,
> average_wait
> from v$system_event
> order by time_waited
> /
>
>
>
>
>
> Johnson Poovathummoottil <joni_65_at_yahoo.com>
> Sent by: root_at_fatcity.com
> 07/31/2002 01:24 PM
> Please respond to ORACLE-L
>
>
> To: Multiple recipients of list ORACLE-L
<ORACLE-L_at_fatcity.com>
> cc:
> Subject: extremely high number of executions
>
>
> Hi All,
>
> We have an application which executes one sql
> statement more than 10 million times a day. Everything
> is good about the sql, well tuned, uses indexes, parse
> only once, etc. The number of concurrent users in this
> database seems to around 60, but we see an average
> 1500 executions/sec.
>
> We questioned the developers about the sql as we had
> seen 80% to 95% latch sleeps on library cache
> constantly. They seem to be hitting the database every
> time a page is refreshed instead of storing the
> retrieved data some where for later use.
>
> The developers are of the opinion that cookies and
> session variables are considered &#34;the much
> detested and reviled Satan and Lucifer of all
> &#34;stateful&#34; web apps&#34;.
>
> Any comments/opinion?
>
> __________________________________________________
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Ramon E. Estevez
  INET: com.banilejas_at_codetel.net.do

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
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