Re: Beginning tuning

Phillip Mills wrote:
>> I'd like to add to this that you should only start tuning if
>> you experience a performance problem.
>
> I agree and in this case the top-level problem statement was
> that the application was not making use of available
> processing resources regardless of the load applied.

Available processing resources where?
On the application server?

The problem statement is bad, because why is it a
problem if the resources are not consumed?
The question is: is the response time and the throughput ok?
If not, that would be a real problem.

Are your top-level problem staters just pissed off
because they cannot get the machine in trouble no matter
how much test load they apply?

If you have a performance problem, the first thing you must find
out is where the performance bottleneck is: network,
CPU, I/O, or memory? And on which machine, if there
are more than one. You can continue once you know that.

Yours,
Laurenz Albe