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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Wait Event "PX Deq: Execution Msg"
Nancy:
>From your message the average wait time is less than 1 micro second (if I my
undertstanding is correct) and I would not worry much about that if that is
the case.
Best Regards,
K Gopalakrishnan
Bangalore, INDIA
> I failed to mention this is an 8.1.7.3 database. Sorry about that.
> Nancy
>
> -----Original Message-----
> McCormick
> Sent: Thursday, May 16, 2002 7:53 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Hello,
>
> I am hoping someone can help me with an elusive wait event called 'PX Deq:
> Execution Msg'. As you can see from the statspack "Top 5 Wait Events"
this
> event accounts for almost 75% of the wait time. I have been looking in
past
> Oracle-L posts, Google, Oracle FAQ, OTN, Metalink, Oracle manuals, etc. I
> can find almost nothing about this event. What I did find leads me to
> believe may be an idle event and that it is the second event 'PX Deq
Credit:
> send blkd' that may be the more troublesome one. However I am still
> confused about both. Can someone help set me straight or tell me where
> there might be some more information about these 2 events?
>
> Thanks,
> Nancy
>
> Top 5 Wait Events
> ~~~~~~~~~~~~~~~~~ Wait %
> Total
> Event Waits Time (cs) Wt
> Time
> -------------------------------------------- ------------ ------------ ---
--Received on Fri May 17 2002 - 09:13:23 CDT
> --
> PX Deq: Execution Msg 42,144 8,639,803
> 74.48
> PX Deq Credit: send blkd 15,339 2,878,443
> 24.81
> log file parallel write 41,934 30,787
> .27
> db file parallel write 8,776 25,046
> .22
> db file sequential read 24,767 18,255
> .16
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Nancy McCormick
> INET: nmccormick_at_sbti.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Nancy McCormick
> INET: nmccormick_at_sbti.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
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> (or the name of mailing list you want to be removed from). You may
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-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: K Gopalakrishnan INET: kaygopal_at_yahoo.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
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