From: Sdrolias Aristotelis (ASdrolias@cosmote.gr)
Date: Wed Jul 28 2004 - 11:15:48 EDT
Hi all,
OS: tru64 5.1
Main question is the following:
Is it possible high %CPU time of [kernel idle] process to slow down the execution of other processes and generally result to poor performance of the system?
Situation:
We are experiensing here poor performance on some processes which are more sleeping than executing on CPUs when the number of CPUs are enough (and 70% idle), and memory is enough. Processes are connecting, retreiving data from oracle, computing and writing back to oracle and filesystem.
So, there is a possibility that oracle or filesystem might be the bottleneck.
But appart from this, is it possible high %CPU time of [kernel idle] process to slow down the execution of processes?
[kernel idle] process has on our system %CPU time 65% on average.
Is there a possibility that this is causing the problem?. If yes, how can I find what is the exact cause of the problem?
I have seen many tru64 system and this is the only one with such a big CPU time on [kernel idle] process.
What might be causing this behaviour? any ideas?
Kind regards,
Aristotle Sdrolias
Software & system Engineer.
Email: asdrolias@cosmote.gr
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