we now have a problem in production where at some times during the day, the response times of transactions on a particular application server get much higher than the normal.
We have looked at stad (workload) at these times and noticed an increase in processing time but not in cpu time.
We looked at the machine statistics and nothing was out of order at those times. (cpu, network, etc).
What is also strange is that we have other application servers running on the same machine which do not have the problem.
The question is how can we find out in which component is this processing time taking place ?
In what components can processing time happen ?