[cmake-developers] CMake is slow for project with hundred target and one command with large number of dependencies

[Nicolas Desprès]

On Mon, Jul 15, 2013 at 11:53 AM, Stephen Kelly <steveire at gmail.com> wrote:

> Nicolas Desprès wrote:
> >>> > I have pushed my work so far on my github clone of CMake.
> >>> > https://github.com/nicolasdespres/CMake/tree/topic/large-deps-perf
> >>>
>
> Thanks. The bottleneck seems to be in
>
>  cmTargetTraceDependencies::FollowName
>
> as it follows each entry in the LARGE_LIST for each of the 100 targets.
>

Yes that one or cmMakefile::GetSourceFileWithOutput(char const*). I can
send you a gzipped of my callgrind data off-list if you want (it
weights 534K).


> >>
> >> I also cleaned that up a bit.
>
> At least ninja_convenience_targets seems to be obsolete too? I didn't check
> the others. Just looking through my 'git branch -a' output :).
>
>
That's right. I have deleted it.
Thanks,
Nico
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