Re: "Performance Counters"

  • From: "Sandra Becker" <sbecker6925@xxxxxxxxx>
  • To: "Oracle-L Freelists" <Oracle-L@xxxxxxxxxxxxx>
  • Date: Fri, 27 Apr 2007 12:00:55 -0600

Apparently, the replies were sent only to you.  I would be interested in
what was said.  I have a developer constantly asking me about such things.
I tell him you're comparing cheese and Wednesday, but it isn't soaking in.
Perhaps I'm not explaining it well, or it could be a deliberate blind spot
about Oracle.
Sandy


On 4/27/07, Jeffery Thomas <jeffthomas24@xxxxxxxxx> wrote:

Thanks for the replies.     I like Mark's analogy -- measuring for engine
RPM without knowing if we are even going in the right direction.    Totally
apt.


On 4/27/07, Ted Coyle <Ted.Coyle@xxxxxxxxxxxxxx> wrote:
>
>  I have one answer…. Response time.
>
>
>
> It sounds like you are getting yourself into a mess.
>  ------------------------------
>
> *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
> *On Behalf Of *Jeffery Thomas
> *Sent:* Friday, April 27, 2007 11:02 AM
> *To:* Oracle-L Freelists
> *Subject:* "Performance Counters"
>
>
>
> We have a SQL Server team going to manage a new vendor-built application
> on 10g RAC (Solaris).
> They have zero  experience with Oracle.    They are asking the Oracle
> team for 'performance counters'
> similar to what they use with SQL Server so that they can identify
> "satisfactory performance criteria" to be
> used as non-functional requirements for the vendor building the
> application.
>
> The ones identified for SQL Server were:
>
> SQL Server: SQL Statistics: SQL Compilations/Sec counter must not exceed
> 100 per second over a 2 minute period.
> Average Disk Queue Length, averaged over a 2 minute period must not
> exceed 2.5
> SQL Server: Buffer Cache Hit Ratio should exceed 90% measured over a 2
> minute period.
> The CPU usage must not exceed 35% averaged over a 2 minute period.
> The SQLServer:LockWaitTime must not exceed 2ms measured over a 2 minute
> period
>
> If you've got a vendor building an application for you -- what kind of
> benchmarks -- if any -- actually make sense with
> respect to performance criteria that the vendor must meet?
>
> Thanks,
> Jeff
>
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