Ralf Hemmecke wrote:
>
> > On the test machine I am doing build as follows:
> >
> > time make -j 10 > mlogg 2>&1 && time make all-input > tst_logg 2>&1
> >
> > Two times are reported: time for build and time for 'make all-input'.
> > I see only increase in _real_ time for 'make all-input'.
>
> Let me first understand what your reason is for doing "make all-input"
> after a full build?
Build in parallel, test serialy.
> We have
>
> all: all-ax all-contrib
> all-contrib: all-src
> all-input: all-src
>
> so ideally "make all-input" shouldn't remake anything.
>
Yes ideally "make all-input" shouldn't remake anything, but
there is some possibility for bugs. "make all-input" needs
to recompute dependencies, if that got more complicated,
then it may take more time. There may be queued disk
I/O in system buffers... Speculation is of little use,
one needs to meausre and experiment to find what (if any)
is going on.
--
Waldek Hebisch
[email protected]
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