Running version 3.1 (v2.2.1pre0 23jan2001). One system
in our environment (running AIX 4.3.3_07) runs monitor
with very high %CPU (usually around 50% or more).
Other systems running same and older versions are fine.
With one of the AIX 4.3.3 patch levels the behaviour of one of the performance API's changed. The change can lead to excessive CPU consumption with short intervals. The method used to calculate average values was improved to improve accuracy, but this is much heavier than before.
As a workaround just refrain from using short intervals in the second range.
Marcel Mol has changed the original monitor program at mesa.nl. I have not modified my 3.1 branch. These are licensing problems for me to perform further work on monitor 3.1. Just read the License file coming with recent versions of Marcel's code and you'll understand.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Logged In: YES
user_id=156828
With one of the AIX 4.3.3 patch levels the behaviour of one of the performance API's changed. The change can lead to excessive CPU consumption with short intervals. The method used to calculate average values was improved to improve accuracy, but this is much heavier than before.
As a workaround just refrain from using short intervals in the second range.
Marcel Mol has changed the original monitor program at mesa.nl. I have not modified my 3.1 branch. These are licensing problems for me to perform further work on monitor 3.1. Just read the License file coming with recent versions of Marcel's code and you'll understand.