[Scons-users] Improve speed of windows environment

[Bill Deegan]

Yes.
This has long been the case.
Launching processes in Windows is MUCH slower than linux.
When SCons starts up it tries to load all the default tools.
This involves launching numerous processes to see what tools are available
and also which version(s)
You can speed this up by only loading the tools you're using on windows.

Do you only use env.Program() or do you also use Program() (which uses the
DefaultEnvironment())
So:
DefaultEnvironment(tools=[])
env=Environment(tools=[only the tools you're using],...)

Should help.

-Bill



On Tue, Apr 23, 2019 at 10:07 AM Pierre-Luc Boily <pierreluc.boily at gmail.com>
wrote:

> Hello!
>
> I just realized that the creation of an environment is faster under centos
> compared to windows 10.  See below Dump trace with --deubg=time arguments :
>
> Centos : https://pastebin.com/UPggyDcj
> Windows : https://pastebin.com/11YzKNDH
>
> I already read somewhere that tool creation is time consuming, but both
> centos\windows environments looks similar to be regarding tools..  So, I
> don't know why windows takes 1500 ms compare to 300ms for centos.
>
> Any idea?
>
> thx!
>
>
>
> --
> Sent from: http://scons.1086193.n5.nabble.com/Users-f16930.html
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