kicad-developers team mailing list archive

[Benoît Roehr <benoit.roehr.ec@xxxxxxxxx>]

On 22/10/2014 15:16, Lorenzo Marcantonio wrote:
> On Wed, Oct 22, 2014 at 02:01:44PM +0100, Tim Hutt wrote:
> > Hi,
> >
> > I'm trying to do some kicad development on windows. I initially downloaded
> > & built it with kicad-winbuilder which went without a hitch. Kicad runs
> > fine.
> >
> > However, if I perform a null-rebuild (i.e. I don't change anything and just
> > run `make` again), it takes about 70 seconds to run. That's quite a while
> > isn't it? My PC is pretty fast (quad core 3.3 GHz i5, 16GB RAM), so I
> > wouldn't have expected it to take so long. Is this just a feature of cmake?
> It needs to check *a lot* of dependencies and timestamps; also each
> submakefile has its own overhead.
>
> Probably cmake is slightly slower than automake, but IMHO not really
> significant on a typical build. In fact even with distcc, I find linking
> the heaviest step... consider this output for a full debug build:
>
> -rwxr-xr-x 1 lomarcan lomarcan 268684355 ott  4 15:51 _pcbnew.kiface
>
> Yes, it's more than 256MB of stuff :D it takes a while to do that (if
> only to read and write from disk).
Yes, and also, some antiviruses are filtering access to disk, which 
takes a bit of time each time a file is accessed. I remember very slow 
build for Arduino (30-40 seconds) in Win7 when using Commodo Firewall.
>