Re: Gridcontrol showing future
- From: Ozgur Ozdemircili <ozgur.ozdemircili@xxxxxxxxx>
- To: Karl Arao <karlarao@xxxxxxxxx>
- Date: Mon, 10 May 2010 16:48:28 +0200
Hi Karl,
It is from the performance page. I have restarted the Gridcontrol and now
observing , it has waited until 14.40 and now started to report normal,
along with the jokes of my work mates that "Oracle has the ability to show
the future !"
I will be checking the top activity page. Like you mentioned it seems more
real to me.
Thank you.
Özgür Özdemircili
http://www.acikkod.org
Code so clean you could eat off it
On Mon, May 10, 2010 at 4:42 PM, Karl Arao <karlarao@xxxxxxxxx> wrote:
> Hi Özgür,
>
> Is this the "performance page" or "top activity page" ?
> Have you also compared the graph from the "performance page" and "top
> activity page" ?
>
> I remember Kyle telling me this, because I have asked him about his
> presentation http://www.perfvision.com/ftp/emea2008/02_ASH.ppt (slide
> #54,55,56): "AAS on the "performance page" in OEM 10g is actually from
> v$system_event + CPU from time model
> while the "top activity page" comes from ASH.."
>
>
>
> ... and from my observations/tests there's really a slight lag time on
> the "performance page" after running the TPC-H from hammerora
> and also when database gets a lot of activity and started to queue...
> the AAS from the "top activity page" tends to be more accurate.. (And
> the "top activity page" will update faster because it's getting from
> ASH..)
>
>
> --
> Karl Arao
> karlarao.wordpress.com
> karlarao.tiddlyspot.com
>
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