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VMWare, esxtop Host group

Posted on 2012-03-15
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Last Modified: 2012-03-15
I read the doc, but am having problems identifying the host group

The below shows my VM as RHEL2, and I am guessing that my host is 'system'.  Is that correct?

Thanks
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Question by:Los Angeles1
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LVL 121
ID: 37726996
A group contains multiple worlds.

You've not provided any screenshot?

A powered-on VM has a corresponding group, which contains multiple worlds.

There are other groups besides VM groups.

* The “idle” group is the container for the idle worlds, each of which corresponds to one PCPU.

* The “system” group contains the VMKernel system worlds.

* The “helper” group contains the helper worlds that assist VMKernel operations.

* In classic ESX, the “console” group is for the console OS, which runs ESX management processes.

In ESXi, these ESX management processes are running as user worlds directly on VMKernel.

So, on an ESXi box you can see much more groups than on a classic ESX, but not the “console” group.
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by:Los Angeles1
ID: 37727016
So is the host utilization basical 100 - %idle for the aggregate of 'system' and 'helper' ?
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LVL 121
ID: 37727056
host utilization - which esxtop metric are you referring to here?
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LVL 121
ID: 37727059
* “%IDLE”

The percentage of time the VCPU world is in idle loop. Note that %IDLE is included in %WAIT. Also note that %IDLE only makes sense to VCPU world. The other worlds do not have idle loops, so, %IDLE is zero for them.
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LVL 121

Accepted Solution

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Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 37727087
In answer to your question:-

I read the doc, but am having problems identifying the host group

The below shows my VM as RHEL2, and I am guessing that my host is 'system'.  Is that correct?

Thanks


Sorry, misread your question, and just looked back....


* The “system” group contains the VMKernel system worlds.
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LVL 121
ID: 37727100
Simons article, may be better reading and understanding of esxtop

http://simongreaves.co.uk/blog/esxtop-guide

I've found the document I've been looking for, which breaks the ESXi server into block components, which I think you will find interesting, and help you visualise these components.


ESX Arch
Source
http://www.vmware.com/files/pdf/vmware_esxi_architecture_wp.pdf
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