enumerate memory overhead

[thb_]

is there a way to enumerate the memory overhead of a vm without using the GUI?

I would like to get the information over VI Toolkit.

any ideas?

[Dave_Mishchenko]

our discussion has been moved to the VI Toolkit (for Windows) forum

Dave Mishchenko

VMware Communities User Moderator

[LucD · Accepted solution]

Yes, you could, for example, do it like this:

Get-VM <VM-name> | Get-Stat -Stat mem.overhead.average -Start (Get-Date).adddays(-1) -Finish (Get-Date) -MaxSamples 48 -IntervalMins 30

[thb_]

So when i look at the output it's not the same what i see in the GUI.

Why is that?

I also thought the Memory Overhead is fix.

In the ressource management it a table that shows the overhead for VMs with X vCPUs and X Memory and 32Bit or 64 Bit GuestOS.

[LucD]

Depends what type of statistics you are looking at in the GUI.

If you select "realtime" in the GUI the cmdlet should be

Get-VM <VM-name> | Get-Stat -Stat mem.overhead.average -Start (Get-Date).adddays(-1) -Finish (Get-Date) -MaxSamples 100 -Realtime

Also take into account that the date/time the Get-Stat returns is in UTC while the VI Client shows local time.

Memory overhead for guest is not fixed afaik, it can change during the life of the guest.

I'm not sure to which Resource Mgmt table you are referring, could you give a pointer ?

[thb_]

Page 142,

but you're right. I thought it's fixed. But after reading it again i understand it's not

And one more thing. Is there a list of all "MetricId"

with:

get-vm <vmname> | Get-Stat -memory i only get those Ids:

MetricId

-

---

mem.usage.average

mem.granted.average

mem.active.average

mem.vmmemctl.average

thanks!

[LucD]

You can find a list of the metrics in the SDK Programming Guide appendix A.