xsharp.eu

The program DBForge Studio Installation makes a "Native image Generation" and recommends it's usage to have performance advantages. The process took at least a minute on a quite fast development machine where many files were procecessed.

I have googled and found for example the article about the Microsoft Tool NGen

https://learn.microsoft.com/en-us/dotne ... -generator

I ask me now if it is worth to do this process and why there is a difference to the automatic compilation process the JIT compiler normally does the first time.

Arne

Hi Arne,
if I remember correctly, this is executed in the installation process on the X# compiler.
Wolfgang

Wolfgang,

wriedmann wrote: ↑Fri Feb 23, 2024 1:46 pm Hi Arne,
if I remember correctly, this is executed in the installation process on the X# compiler.
Wolfgang

That is true. See the "c:\Program Files (x86)\XSharp\Uninst" folder.
There is an instngen.cmd file that does this and an uninstngen.cmd that removes the native images when uninstalling.

Robert

NGen helps to reduce the start time of the application. Here's a blogpost from microsoft and a tutorial from devexpress:

https://devblogs.microsoft.com/dotnet/a ... rformance/
https://docs.devexpress.com/GeneralInfo ... aunch-time

The annoying part of NGen is, that it has to be done on every pc, every time an update of the application is installed.

I tried it nevertheless. I called NGen.exe for every dll
But the application doen't start anymore afterwards (AccessViolationException in XSharp.FixedMemory.Alloc(UInt32, UInt32), XSharp.RT.Functions.String2Mem(System.String), XSharp.Internal.CompilerServices.String2Psz(System.String, System.Collections.Generic.List`1<IntPtr>)
Additionally what would make it problematic for us:
NGen needs administrative windows rights and the process for register our files takes many minutes. So it is not possible to start a batchjob in the background and starting manually such a job on every computer is not interesting for a program that gets updates every week.
Arne