according to the docs and a friend in COE, slave wait is an "idle
event" -- it means that the dbwr slave is waiting for something to do

in other words, it ain't busy... not a "real" wait


--- Tom Schruefer <[EMAIL PROTECTED]> wrote:
> 
> 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]
> 
> 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: [EMAIL PROTECTED] (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).


__________________________________________________
Do You Yahoo!?
LAUNCH - Your Yahoo! Music Experience
http://launch.yahoo.com
-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Rachel Carmichael
  INET: [EMAIL PROTECTED]

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: [EMAIL PROTECTED] (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).

Reply via email to