Different CPU utilization on ESX VMware servers of Netweaver Portal

Hello,
we are running an Enterprise Portal NW 7.0, SPS20. The application servers are running on 6 ESX VMware servers.
Although all application servers have almost the same amount of user sessions and the same processes on all servers,
always one of the servers have more than the double amount of CPU utilization than all other servers !
We found out, that this phänomen appears, as soon as one of the VM servers is running on a different physical hardware.
As soon as all servers are running on the same physical hardware, the problem does not exist.
Does anyone have experiences with the topic (Portal-)application servers on ESX VMware and different CPU utilization ?
Best regards,
Matthias

Hi Matthias,
Here is some information that may help you analyze the situation further:
1158363 - vm-support - Exporting Diagnostic Data from VMware
Use 'esxtop'. Helpful information to evaluate the data shown in 'esxtop' can be found in "Performance Analysis Methods" available at:
http://www.vmware.com/files/pdf/perf_analysis_methods_tn.pdf
Furthermore please take note of the following SAP notes and ensure you have set up the extended SAP System Monitoring.
674851 - Virtualization on Windows
1159490 - Virtualization on Windows: Monitoring on VMware ESX
1056052 - Windows: VMware ESX Server 3 configuration guideline
1104578 - Virtualization on Windows: Enhanced monitoring
Hope this helps.
Best Regards,
Matt

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from
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v$process a
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Message was edited by:
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"I have tested the same scenario on the same computer running Windows 8/8.1 and got the same result. However, when doing the same thing under Windows 7, CPU utilization went up to 100%.
Anybody has any idea why this happens? Is it a different default setting somewhere (probably in registry)?"
I am a little confused here .According to my understanding ,the number is smaller the performance of the machine is higher when the other conditions are the same .
Here is a link may be useful for us to understand the CPU Utilization for Performance Analysis
Interpreting CPU Utilization for Performance Analysis
http://blogs.technet.com/b/winserverperformance/archive/2009/08/06/interpreting-cpu-utilization-for-performance-analysis.aspx
Best regards
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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Adios!

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Different CPU utilization on ESX VMware servers of Netweaver Portal

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