Interesting look at Win cpu usage vs Vmware CPU usage

I came across this scenario:

The windows task manager shows the cpu of the vm pegged at 100%.

The vmware performance monitor says that the vm is only using 5-60% of the CPU.

Given the vm's pegged performance, I am definitely seeing that there is a disparity among the two graphs.

"suffice it to say that if you are looking for an absolute view of how CPUs are being used, you cannot trust the guest’s view of itself"

From <http://blog.logicmonitor.com/2013/02/25/a-tale-of-two-metrics-windows-cpu-or-vcenter-vm-cpu/>

Meaning, that while the guest may think all of the cpu is in use, for itself, there are tiems when the cpu is not accessible to the vm due to cpu sharing. So at load even if the vm thinks that the cpu has been loaded up to 100%, the physcial cpu isnt at 100% which is what the vcenter graph shows.  Vcenter shows the vm only using 50% of the cpu.

In windows Is the vm's cpu meter correct then?

According to the VM, its using 100% of the resources available to it, so yes it is correct.

While it may not be using 100% of the pshycal cpu, it is using 100% of the allocated cpu so that is what windows reports.

***of course make sure you don’t have any storage latency issues either. You don’t want the vm to be in a high ready state. Ready states should be under 5%'

http://kb.vmware.com/kb/2001003

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Windows 7 - Adding drivers to the INF folder

Add drivers to driver store in windows

Creating a win 7 image.
Have some drivers I wanted to add to the driver store.
Can not just paste them into %SystemRoot%\INF because Windows deletes it.

How can you add it?

use PNPUTIL.exe which is included as part of win7.
example : pnputil /a c:lenovo\NICDriver.inf  would add a nic driver.

What if you have many drivers??

That is kind of not fun if you need to add the drivers for 5 different models.
You can place them in one directory, and then use this script  that Alexander Stein placed on github.
Thanks Alexander!
https://gist.github.com/ajstein/1021553
note: you are going to get unsigned driver warnings and will have to OK them.
There is a way to sign the drivers if you would like, but I didn't really look into that since I only had a few to do.

@ECHO OFF

 

IF "%1" == "" GOTO ERROR

 

ECHO.

ECHO Checking dir %1 recursively for drivers. 

ECHO.

 

FOR /F "tokens=*" %%D IN ('DIR /B /AD /S %1') DO PNPUTIL -a "%%D\*.inf" 2>&1 >> %WinDir%\system32\driverimport.log

 

GOTO EOF

 

:ERROR

ECHO Missing argument! Must include QUOTED directory path!

ECHO %0 "C:\path\to\driver\folder\"

 

:EOF

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