[Scons-users] SCons very slow on GitHub actions

[Bill Deegan]

Mats - That looks like the culprit.

On Wed, Apr 30, 2025 at 1:13 PM Mats Wichmann <mats at wichmann.us> wrote:

> On 4/30/25 14:09, Bill Deegan wrote:
> > It could be chalked up to Microsoft making server 2025 "better".... ;)
> >
> > I wonder if it's doing more anti-virus'y checking on each launched
> process?
> >
> >
> > On Wed, Apr 30, 2025 at 12:17 PM Leonard de Ruijter
> > <alderuijter at gmail.com <mailto:alderuijter at gmail.com>> wrote:
> >
> >     Yes, I tried that option but it doesn't give extra insight
> >     unfortunately.
> >
> >     I just tried the windows-2019 image and it is way faster. 10 seconds
> >     total script reading time, compared to 70 seconds on 2022 and 2025.
> The
> >     2019 image only has Visual Studio 2019 installed.
> >
> >     Python version (e.g. 3.13) is still slow on 2022/2025 images.
>
> At this point just flailing around, but could this be a factor?
>
> https://news.ycombinator.com/item?id=42782553
>
>
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