RE: Newbie DBA question
- From: "Powell, Mark D" <mark.powell@xxxxxxx>
- To: <Cary.Millsap@xxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 29 Jul 2005 16:22:43 -0400
>> 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@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Cary Millsap
Sent: Friday, July 29, 2005 3:42 PM
To: oracle-l@xxxxxxxxxxxxx
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@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Allen, Brandon
Sent: Friday, July 29, 2005 1:37 PM
To: bunjibry@xxxxxxxxx; 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@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]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@xxxxxxxxx
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