* Ingo Molnar <mi...@kernel.org> wrote:
>
> * Arnaldo Carvalho de Melo <a...@infradead.org> wrote:
>
> > Em Fri, Oct 26, 2012 at 04:54:51PM +0200, Ingo Molnar escreveu:
> > > * Arnaldo Carvalho de Melo <a...@infradead.org> wrote:
> > > > . Makefile improvements from Namhyung Kim.
> > >
> > > These are really useful: there used to be a couple of
> > > seconds of wait time at the beginning of every perf build -
> > > these are now nicely explained with the various CHK entries.
> >
> > The optimal way, I guess, would be to have some cache file
> > with the results of such feature tests, that would be created
> > and then used till the build fails using its findings, which
> > would trigger a new feature check round, followed by an
> > automatic rebuild.
> >
> > That would be tricky because we would have to have an
> > automated way of discovering if the build failed due to
> > missing packages or if it failed due to some ordinary coding
> > mistake.
>
> The feature tests aren't a big problem right now - but making
> it *visible* is really useful. It also tells us which feature
> test fails, etc.
Btw., there's another thing that would be nice in addition to
simplifying the PERF-VERSION-GEN script: to be able to run the
CHK tests in parallel, like the object file runes.
Right now the CHK tests are serialized and they take several
seconds to build and run. A parallel make rule would reduce
that to about a second I think.
Thanks,
Ingo
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