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  #1  
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jpp
 
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Default IDS Performance problem - 10-02-2003 , 04:27 PM






Hi,

I have performance problems with on IDS 9.30 on hpux. When i look
current sessions with onstat -g sql somme are always with status cond
wait(netnorm) and wait more than 1000 times. What is meaning for this
status ?

When i look all waiting sessions on threads with onstat -g con, i have
always more than 100 waiting sessions with cond wait netnorm. Does it
means my instance has not good parameters to get very acceptable
performances. And is it possible to see sql orders relating to these
threads.

Thanks for your experience


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  #2  
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Obnoxio The Clown
 
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Default Re: IDS Performance problem - 10-02-2003 , 04:46 PM






jpp wrote:

Quote:
I have performance problems with on IDS 9.30 on hpux. When i look
current sessions with onstat -g sql somme are always with status cond
wait(netnorm) and wait more than 1000 times. What is meaning for this
status ?
It means it's waiting for something from the client.

Quote:
When i look all waiting sessions on threads with onstat -g con, i have
always more than 100 waiting sessions with cond wait netnorm. Does it
means my instance has not good parameters to get very acceptable
performances. And is it possible to see sql orders relating to these
threads.
It think this is very unlikely to be the root of your problem. When you say
"performance problems", what, exactly, do you mean.

Quote:
Thanks for your experience
As the actress, etc.

--
Ciao,
The Obnoxious One

"Ogni uomo mi guarda come se fossi una testa di cazzo"


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  #3  
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hiten.bhawsar
 
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Default RE: IDS Performance problem - 10-02-2003 , 10:34 PM




Hi

I agree with Obnoxio

Jpp :-

when u do update statistics in your system ?

HITEN

-----Original Message-----
From: Obnoxio The Clown [mailtobnoxio (AT) hotmail (DOT) com]
Sent: Friday, October 03, 2003 3:16 AM
To: informix-list (AT) iiug (DOT) org
Subject: Re: IDS Performance problem


jpp wrote:

Quote:
I have performance problems with on IDS 9.30 on hpux. When i look
current sessions with onstat -g sql somme are always with status cond
wait(netnorm) and wait more than 1000 times. What is meaning for this
status ?
It means it's waiting for something from the client.

Quote:
When i look all waiting sessions on threads with onstat -g con, i have
always more than 100 waiting sessions with cond wait netnorm. Does it
means my instance has not good parameters to get very acceptable
performances. And is it possible to see sql orders relating to these
threads.
It think this is very unlikely to be the root of your problem. When you say
"performance problems", what, exactly, do you mean.

Quote:
Thanks for your experience
As the actress, etc.

--
Ciao,
The Obnoxious One

"Ogni uomo mi guarda come se fossi una testa di cazzo"
sending to informix-list


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  #4  
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Mark Denham
 
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Default Re: IDS Performance problem - 10-03-2003 , 08:00 AM




Nothing you mention here specifically indicates a problem.

If you know how to use dbaccess, run it and select a database. Use another
session to take a look at what your backend process is doing. You will find
that it is in exactly the state you describe below. This status will only
change when you issue an sql command - in order to monitor it, make sure
that the sql you issue takes a while to complete. You will see the thread
status change to indicate that it is doing some work. Once the first set of
records is returned to dbaccess you will be presented with a menu allowing
you to step through the selected record set [assuming that there are enough
records returned to require more than one screen]. Again if you check the
status of the thread you will see that it is in 'cond wait' and will remain
that way until you do something with the dbaccess session.

Potentially you have a lot of client sessions that are connecting to the
dbserver and spending a lot of time 'doing nothing'. About the only thing
wrong with that is you are paying for user licenses that you may not
require.

Mark

----- Original Message -----
From: "jpp" <jean-philippe.planquart (AT) wanadoo (DOT) fr>
To: <informix-list (AT) iiug (DOT) org>
Sent: Thursday, October 02, 2003 17:27
Subject: IDS Performance problem


Quote:
Hi,

I have performance problems with on IDS 9.30 on hpux. When i look
current sessions with onstat -g sql somme are always with status cond
wait(netnorm) and wait more than 1000 times. What is meaning for this
status ?

When i look all waiting sessions on threads with onstat -g con, i have
always more than 100 waiting sessions with cond wait netnorm. Does it
means my instance has not good parameters to get very acceptable
performances. And is it possible to see sql orders relating to these
threads.

Thanks for your experience

sending to informix-list


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