topic Re: Average CPU utilization using MONITOR recorded data? in Operating System - OpenVMS

Average CPU utilization using MONITOR recorded data?

roose — Fri, 17 Nov 2006 03:38:50 GMT

Hi Folks,

I've been using mostly PSPA for my system performance monitoring and it seems I am no longer able to use the "always there" and reliable MONITOR utility :)

We are recording monitor data on a 15 minute interval per day on our nodes. Now, what I want to do is to extract the average daily CPU utilization of each node on a cluster using this recorded data. Will this be possible using monitor? What I know is that you can playback the collected data, but what I would like to have is to average these data and basically summarize it on a daily basis.

Any input will be highly appreciated. Thanks!

Re: Average CPU utilization using MONITOR recorded data?

Karl Rohwedder — Fri, 17 Nov 2006 03:45:00 GMT

You may do a
$ MONITOR/Input='datafile' /Nodisplay/Summary='reportfile' class [/Begin... /End=...]

regards Kalle

Re: Average CPU utilization using MONITOR recorded data?

roose — Fri, 17 Nov 2006 03:49:10 GMT

Hi Kalle,

Thanks for the quick reply here. Which class would you use then to get the CPU utilization? I believe if you are using the CLUSTER class, you should be able to see this. What if we are only recording each node's data, will this be possible?

Re: Average CPU utilization using MONITOR recorded data?

Karl Rohwedder — Fri, 17 Nov 2006 04:14:35 GMT

MONI MODE or MONI SYSTEM display the IDLE time of a node.

regards Kalle

Re: Average CPU utilization using MONITOR recorded data?

EdgarZamora_1 — Fri, 17 Nov 2006 08:36:55 GMT

Roose,

Assuming your nodes are in a cluster, if you use MON CLUS /SUM= ... you would just run it on one node of your cluster. Then you'd only need to process one summary file to get the averages for each node.

I would use CLUS over SYS as CLUS gives you the CPU utilization number you are looking for. If you use SYS you would get idle time instead and would have to compute the utilization number from there.

Re: Average CPU utilization using MONITOR recorded data?

Andy Bustamante — Fri, 17 Nov 2006 12:38:23 GMT

Please look at T4, http://h71000.www7.hp.com/OpenVMS/products/t4/index.html. This utility builds on the data monitor makes available and can take your monitor files as input.

I used to record monitor and report on 30 minute periods during the day. T4 can provide this information in an easy to read format. The VMS Technical journal has an article, see http://h71000.www7.hp.com/openvms/journal/v3/t4.html.

Andy

Re: Average CPU utilization using MONITOR recorded data?

Peter Zeiszler — Fri, 17 Nov 2006 12:41:47 GMT

Also whenever someone mentions monitoring I always have to bring up - Check out T4. Very good collection tool.

http://h71000.www7.hp.com/openvms/products/t4/