kicad-developers team mailing list archive

[Seth Hillbrand <seth@xxxxxxxxxxxxx>]

On 11/5/19 9:59 AM, Simon Richter wrote:
> Hi,
>
> I've made another quick run for Release builds:
>
>                  Make    Ninja
> Scripting ON    5:19.66 5:03.91
>                  3336%   3565%
> Scripting OFF   3:33.84 3:08.50
>                  4947%   5684%
>
> That is with -j64 on 2 socket T2P9D01.
>
> You can see that dependency generation makes about 15 seconds difference
> (the CMake generator for Makefiles has that as a separate step, while the
> generator for Ninja knows how to output dependency information during the
> first build).
Wow.  I have nowhere near your horsepower but still run a 12-core system 
and don't see anywhere near this discrepancy.Must be in the extended 
parallelism.

For me,
                Make    Ninja
Scripting ON    8:04.92 7:25.43
                1043%   1127%
Scripting OFF   7:33.23 7:15.09
                1090%   1129%

That is to say, scripting adds about 10-30 seconds on a full build.  Do 
you see a difference between running '-j64' and '-j <n cores + 1>' on 
the POWER9?

-S
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Seth Hillbrand
*Lead Developer*
+1-530-302-5483‬ <tel:+12126039372>
Davis, CA
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