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On Wed, Nov 30, 2011 at 3:45 PM, Francois Tigeot <ftigeot@wolfpond.org> wrote:
On Wed, Nov 30, 2011 at 05:21:39PM +0100, Bjoern Michaelsen wrote:
On Wed, Nov 30, 2011 at 04:34:23PM +0100, Lubos Lunak wrote:
On Wednesday 30 of November 2011, Bjoern Michaelsen wrote:

New commits:
commit 1f538764acdd67c3f294cd03da006ace27f736ef
Author: Bjoern Michaelsen <bjoern.michaelsen@canonical.com>
Date:   Wed Nov 30 14:02:08 2011 +0100

    make build.pl verbose on non-silent builds

Moreover I question the usefullness of having verbose build by default.

Please do not go down that road. The default behaviour is the one of GNU make.
Its well documented and if you want make to default to make -s you are free to
make yourself an alias in bash for it. In addition verbose builds are a good
default esp. for builders/bots and newcomers.

My builds kept failing today; without this commit I wouldn't have been able
to find the exact sequence of commands leading to the crashs and the root bug
would not have been fixed.


But that also mean 5 time bigger compressed log file to upload in case
of tinderbox failure...
for me, with 2 box doing 30-40 build a piece, each a day, that means
close to an extra 100 MB of upload on a bad day...

anyway... I fixed tinbuild2 to do make -s by default...
will push that soon

None of the verbose build options documented in the wiki were working. Having
a clean non-verbose terminal output may be a pretty thing but if it leads to
lost hours of work, it's definitively _not_ an improvement.

It is not just a 'pretty' thing. it is also a chance to see warnings...
with a clean output they stick out clearly... otherwise you'd be hard
press to see them in that soup of 'command lines' echo.
It is also a performance issue. first all that scrolling in a terminal
consume quite a bit of CPU... when you have a nicely tune build that
is CPU-bound, any cpu overhead translate in elapse.

Linux full 'verbose build' (all tests after a make clean and a 100% ccache hot)

real    15m40.877s
user    37m0.570s
sys     10m9.090s

Linux full make -s

real    14m48.117
user    37m8.437
sys     9m52.095

norbert

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