That is a wait for parallel query slave to finish processing.

> -----Original Message-----
> From: Tom Schruefer [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, May 21, 2002 4:32 PM
> To: Multiple recipients of list ORACLE-L
> Subject: ID This Wait stat
> 
> 
> 
> You know I could have all the documentation for Oracle 
> printed on my brain,
> buy all the books ever written about the subject, but the primary wait
> problem that comes up will never be directly addressed.
> 
> So, what exactly does 'Slave Wait' mean and what can I do about it?
> 
> 
> I am using DBWR Slaves, since it did not seem as though 
> starting additional
> DBWR's was appropriate on a Win2000 system.
> 
> Here are the Top 5 wait events as per Statpack and my shinny 
> new 'Oracle
> Performance Tuning 101' book:
> 
> Top 5 Wait Events
> ~~~~~~~~~~~~~~~~~                                             
> Wait     %
> Total
> Event                                               Waits  
> Time (cs)   Wt
> Time
> -------------------------------------------- ------------ 
> ------------ -----
> --
> slave wait                                         66,593    6,793,939
> 88.85
> PX Deq: Execution Msg                              28,960      407,167
> 5.33
> PX Deq: Table Q Normal                             19,864      302,480
> 3.96
> PX Deq Credit: send blkd                            3,685      123,671
> 1.62
> PX Deq: Signal ACK                                  3,214        5,294
> .07
> 
> 
> I have a pretty good idea that 2-5 are for parallel query 
> option, although I
> still have to figure out just what they mean.
> 
> 
> Any help would be greatly appreciated.
> 
> _____________________________________________________________
> Tom Schruefer - [EMAIL PROTECTED]
> 410-313-6825
> 
> -- 
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> -- 
> Author: Tom Schruefer
>   INET: [EMAIL PROTECTED]
> 
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