FW: number of transactions per minute/hour

To: <oracle-l@xxxxxxxxxxxxx>
Date: Fri, 15 Sep 2006 10:07:31 -0400
 
Here is a TPS calculation query that I have posted on metalink a couple
of times.  For those who wonder what the comment says the translation
is, "create as response to metalink request from version 7 query."

set echo off
--
-- SQL*Plus script to calculate Transactions Per Second for version 8+
--
-- 20020513  Mark D Powell   New, cre as resp 2 metalink req fr ver 7
Query
--
--  Version 7 Query:
--  SELECT SUM(s.value/
--  (86400*(SYSDATE - TO_DATE(i.VALUE,'J')))) "tps"
--  FROM V$SYSSTAT s, V$INSTANCE i
--  WHERE s.NAME in ('user commits','transaction rollbacks')
--  AND i.KEY = 'STARTUP TIME - JULIAN'
--
select
  round(sum(s.value / (86400 * (SYSDATE - startup_time))),3) "TPS"
from
  v$sysstat  s
 ,v$instance i
where s.NAME in ('user commits','transaction rollbacks') /

Being that the OP wanted to count selects I do not see a solution to the
original request.
-- Mark D Powell --


-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jesse, Rich
Sent: Friday, September 15, 2006 9:41 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: number of transactions per minute/hour

Admittedly without much homework (that I can remember), I've defined a
transaction as:

 SELECT SUM(VALUE)
 FROM sys.v_$sysstat
 WHERE NAME IN ('user commits','user rollbacks');

...which of course is only valuable when the delta of two results is
measured over time.  But I would presume that this would have to take
into account all transactions, including those containing "recursive
SQL".

What is the purpose of the data collection where recursive SQL bothers
you?  If it's to compare the results of business processes, the overhead
of DD calls is valid, isn't it?  Just curious...

Rich 

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Christian Antognini
Sent: Friday, September 15, 2006 2:31 AM
To: exriscer@xxxxxxxxx
Cc: oracle-l@xxxxxxxxxxxxx; ax.mount@xxxxxxxxx
Subject: RE: number of transactions per minute/hour

Hi

> Not sure but I think it is very tedious to get those figures.... I 
> always wondered how benchmark tools gives you informations such as 
> transaction per minute, I think those tools dont use v$sysstat for 
> these purposes

The reason is quite simple. DML statements or queries are *not*
transactions! For that reason Anjo asked the OP to give *his* definition
of "USER transaction"... For a regular definition have a look here:
http://en.wikipedia.org/wiki/Database_transaction.


Regards,
Chris
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FW: number of transactions per minute/hour

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