Re: slowest tap tests - split or accelerate?

Hi,

On 2022-01-19 18:18:59 -0800, Andres Freund wrote:
> >  robocopy /e /NFL /NDL tmp_install\initdb_template t\
> >  575ms
> > 
> > So I guess we could use robocopy? That's shipped as part of windows starting in
> > windows 10... xcopy has been there for longer, so I might just default to that.
> 
> It's part of of the OS back to at least windows 2016. I've found some random
> links on the webs saying that it's included "This command is available in
> Vista and Windows 7 by default. For Windows XP and Server 2003 this tool can
> be downloaded as part of Server 2003 Windows Resource Kit tools. ".
> 
> Given that our oldest supported msvc version only runs on Windows 7 upwards
> [2], I think we should be good?

One thing I'm not sure about is where to perform the creation of the
"template" for the msvc scripts. The prototype upthread created it
unconditionally in Install.pm, but that's clearly not right.

The buildfarm currently creates the temporary installation using a generic
perl install.pl "$installdir" and then uses NO_TEMP_INSTALL.

I don't really have a better idea than to introduce a dedicated vcregress.pl
command to create the temporary installation? :(

Greetings,

Andres Freund