ngen executes extremely long

[maettle]

after upgrading to 7.1912.5 OR installing KB4580979 I experience multiple runs of ngen per version, which delays the skript runtime extremely:

[...]
> Configure Set Power Saving Scheme to High Performance
> Configure Executing all queued .NET compilation jobs - C:\Windows\Microsoft.NET\Framework\v2.0.50727\ngen.exe
> Configure Update native images that have become invalid - C:\Windows\Microsoft.NET\Framework\v2.0.50727\ngen.exe
> Configure Executing all queued .NET compilation jobs - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
> Configure Update native images that have become invalid - C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe
> Configure Executing all queued .NET compilation jobs - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\ngen.exe
> Configure Update native images that have become invalid - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\ngen.exe
> Configure Executing all queued .NET compilation jobs - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe
> Configure Update native images that have become invalid - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe
[...]

[kyriansaxum]

I've seen this issue as well at one of my customers. The issue was a lack of internet access due to a proxy server which required domain user authentication to be able to access the internet. It looks like ngen requires internet access to be able to compile the .Net assemblies.

[matthias-schlimm]

7.1912.6 will become an ADMX Update to specify these settings

[matthias-schlimm]

update in developer branch done, testing this in the upcoming week
Files updated:

• 97_PrepBISF_PRE_BaseImage.ps1
• BaseImageScriptFramework.admx
• BaseImageScriptFramework.adml
• ReleaseNotes.txt

[maettle]

@matthias-schlimm thanks! Which setting should I use to mitigate my problem? Both optimizations?

[matthias-schlimm]

Enable the first one only, the second optimization coming new with 7.1912.5

[matthias-schlimm]

updating adml, per default Option 2 will be disabled

[maettle]

Hi Matthias,
I've tested it now with updated 97 and amdx; its now very fast, but it still executes 3-4x times per .net (v2 and v4), any ideas why that would be? The server has internet access at time of execution and I don't see any blcoked connections on the firewall.

But just to confirm, it's fast again now but I wonder what causes my problem in the first place.
FYI, I've waited for a full release of .6 thats why my feedback took so long.

[EUCweb]

that's normal, it's processes every .net directory