win_dotnet_ngen - Runs ngen to recompile DLLs after .NET updates¶

New in version 2.0.

Synopsis ¶

After .NET framework is installed/updated, Windows will probably want to recompile things to optimise for the host.
This happens via scheduled task, usually at some inopportune time.
This module allows you to run this task on your own schedule, so you incur the CPU hit at some more convenient and controlled time.
http://blogs.msdn.com/b/dotnet/archive/2013/08/06/wondering-why-mscorsvw-exe-has-high-cpu-usage-you-can-speed-it-up.aspx

Note

There are in fact two scheduled tasks for ngen but they have no triggers so aren’t a problem.
There’s no way to test if they’ve been completed.
The stdout is quite likely to be several megabytes.

- name: run ngen tasks
  win_dotnet_ngen:

Common return values are documented here, the following are the fields unique to this module:

Key	Returned	Description
dotnet_ngen64_eqi_exit_code int	64-bit ngen executable exists	The exit code after running the 64-bit ngen.exe executeQueuedItems command.
dotnet_ngen64_eqi_output str	64-bit ngen executable exists	The stdout after running the 64-bit ngen.exe executeQueuedItems command. Sample: sample output
dotnet_ngen64_update_exit_code int	64-bit ngen executable exists	The exit code after running the 64-bit ngen.exe update /force command.
dotnet_ngen64_update_output str	64-bit ngen executable exists	The stdout after running the 64-bit ngen.exe update /force command. Sample: sample output
dotnet_ngen_eqi_exit_code int	32-bit ngen executable exists	The exit code after running the 32-bit ngen.exe executeQueuedItems command.
dotnet_ngen_eqi_output str	32-bit ngen executable exists	The stdout after running the 32-bit ngen.exe executeQueuedItems command. Sample: sample output
dotnet_ngen_update_exit_code int	32-bit ngen executable exists	The exit code after running the 32-bit ngen.exe update /force command.
dotnet_ngen_update_output str	32-bit ngen executable exists	The stdout after running the 32-bit ngen.exe update /force command. Sample: sample output

This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.

Hint

If you notice any issues in this documentation you can edit this document to improve it.