RE: Newbie DBA question

From: Powell, Mark D <mark.powell_at_eds.com>
Date: Fri, 29 Jul 2005 16:22:43 -0400
Message-ID: <5A14AF34CFF8AD44A44891F7C9FF41050395B9F4@usahm236.amer.corp.eds.com>

>> from the business perspective, what is a transaction? <<

Oh, so true, but just because we haven't defined what it is doesn't mean we will not be asked to measure it. The request will usually come from the very people who haven't defined what exactly they want measured. If they have defined the measure they will not provide the proper tools to measure the requirement correctly. Yes, the real world is messy.

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Cary Millsap Sent: Friday, July 29, 2005 3:42 PM
To: oracle-l_at_freelists.org
Subject: RE: Newbie DBA question

Funny thing about questions like this is that there's no real way to map the answer to such a question back into something that you can actually use in the real world. The problem: what exactly is a transaction? The number you'll get by using statspack is derived this way: number(transactions) = number(commits). But, from the business perspective, what is a transaction? For a given business, it may range from a .2-second form validation to a 3-hour report! It makes no sense to talk about the characteristics of an "average transaction" on a system unless it has homogeneous workload-which is a situation that arises almost never in nature.

Cary Millsap
Hotsos Enterprises, Ltd.
http://www.hotsos.com
Nullius in verba

Visit www.hotsos.com for curriculum and schedule details...

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Allen, Brandon Sent: Friday, July 29, 2005 1:37 PM
To: bunjibry_at_gmail.com; Oracle-L
Subject: RE: Newbie DBA question

Bryan,

You can run statspack snapshots every hour, then run reports comparing each hourly snapshot and it will show you the transactions/sec in the top "Load" section. No init setting required for this, but you'll want timed_statistics=true in order to gather other useful stats.

Regards,

Brandon

	-----Original Message-----
	From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org]On Behalf Of Bryan Wells
	Sent: Friday, July 29, 2005 11:32 AM
	To: Oracle-L
	Subject: Newbie DBA question

	All:

	 

	I need to find Peak transactions/queries per hour .  is there an

init setting that needs to be modified before i can gather this information?

	-- 
	Bryan S Wells 
	bunjibry_at_gmail.com

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Received on Fri Jul 29 2005 - 15:26:37 CDT