[Scons-users] Improve speed of windows environment

[Pierre-Luc Boily]

Ok, I tried  your solution but scons complains that Object doesn't exist,
(which is normal I know).  2 Stupids questions:

1- What is the difference between tools and builders in the environment?
By doing this :
DefaultEnvironment(tools=[])
env=Environment(tools=[],...)

both tools and builders are now empty.

2- I need env.Object, env.Library env.Program, but those are gone from the
BUILDERS section.  How to I add them when I create the Environment?  Tried
this, but that doesn't work :
sconsEnv = SCons.Environment.Environment(MSVC_VERSION = '10.0', TARGET_ARCH
= 'x86', tools=['Object'])

Thank you very much!

Pierre-Luc


Le mar. 23 avr. 2019, à 10 h 54, Bill Deegan <bill at baddogconsulting.com> a
écrit :

> 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!
>>
>>
>>
>> --
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