Just a quick note before the weekend starts to let folks know I updated the GPOGUY.COM WMI Filter Test Utility to include timing information (see below).
Specifically, this lets you see how long a given WMI filter took to evaluate on the target system, so you can see roughly how long it will take to evaluate during GP Processing. This means that now you can not only test your WMI filters against real target systems to see if they evaluate to true, but you can also see how “expensive” they are in terms of GP processing.
Specifically, this lets you see how long a given WMI filter took to evaluate on the target system, so you can see roughly how long it will take to evaluate during GP Processing. This means that now you can not only test your WMI filters against real target systems to see if they evaluate to true, but you can also see how “expensive” they are in terms of GP processing.
Enjoy!
Darren
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. You can find the tool here: 
About the Author:
Darren Mar-Elia is CTO & Founder of SDM Software, Inc. Darren has over 25 years of IT and Software experience in the Microsoft technology area, including serving as a Director in Infrastructure at Charles Schwab, CTO of Windows Management Solutions at Quest Software, and Sr. Director of Product Engineering at DesktopStandard. He has been a Microsoft MVP in Group Policy technology for the last 6 years and has written and spoken on Active Directory, Group Policy and PowerShell topics frequently over the years. He maintains the popular Group Policy resource web site at www.gpoguy.com and has been a contributing editor for Windows IT Pro Magazine since 1997. He has written and contributed to twelve books on Windows. Darren also speaks frequently at conferences on Windows infrastructure topics.