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Re: Benchmarking kicad compilation on CPUsreleased 6 years apart

 

Hello Brian

You would still need to obtain the dependencies in some way. vcpkg
seems popular, but I still think there are issues with wxwidgets and
vcpkg and some other dependencies kicad require to enable all features
are not easily available.

On Tue, 29 Oct 2019 at 22:28, Brian Piccioni
<brian@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
> Tomasz
>
>
>
> Do you use Visual Studio to compile Kicad? If so, how? I’m not very good with things like cmake and I’ve tried and tried to get KiCad (or even just PCBNew) to compile with Visual Studio and end up with various problems I can’t solve like missing packages, etc..
>
>
>
> Besides the debugger, one thing with Visual Studio is that you only need Visual Studio, not MSYS2, Mingw, etc., etc..
>
>
>
> From: Tomasz Wlostowski
> Sent: October 29, 2019 2:01 PM
> To: Simon Richter; kicad-developers@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Kicad-developers] Benchmarking kicad compilation on CPUsreleased 6 years apart
>
>
>
> On 29/10/2019 15:40, Simon Richter wrote:
>
> > We could probably shave off another two or three minutes of build time if
>
> > we could make sure that we always make progress on the critical path. The
>
> > dependency generation as a side effect pulls all the sources and headers
>
> > into cache, which reduces the effects of I/O latency a bit during
>
> > compilation, so parallelizing with more than the number of threads you
>
> > actually have is probably counterproductive.
>
>
>
> Hi,
>
>
>
> Another idea: use precompiled headers. I experimented some years ago
>
> with cotire for CMake on KiCad sources and it gave quite promising
>
> results. Since I didn't maintain this code it's probably useless by now
>
> given how new stuff has been added to KiCad tree but the savings in
>
> build time by header precompilation will be still IMHO quite significant.
>
>
>
> As for MSYS's GCC speed - personally I use Visual Studio under Windows,
>
> not only because of faster build time but also because of a debugger
>
> that actually works...
>
>
>
> As a side comment:
>
>
>
> $ make -j12 (latest KiCad master, i7-9750H, 32 GB DDR4 @ 2666 MHz,
>
> Ubuntu 19.04)
>
>
>
> real    7m59.758s
>
> user   86m44.231s
>
> sys     5m9.724s
>
>
>
> Citing the classic: "not great, not terrible" ;-)
>
>
>
> Cheers,
>
> Tom
>
>
>
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