[Buildroot] [PATCH 1/2] package: instrument to gather timing data

Arnout Vandecappelle arnout at mind.be
Tue Oct 11 16:12:06 UTC 2011

On Tuesday 11 October 2011 10:29:13, Thomas De Schampheleire wrote:
> >> and the build-time.data is
> >> never removed, so results will accumulate if several partial builds
> >> are done.
> > 
> > I would call that a feature :-) Partial builds typically mean that you're
> > hacking away at some package, and then it's very relevant to see the
> > impact on build time.
> How would you see the impact? Wouldn't it be more useful to save the
> timing data for subsequent runs in different files (e.g. timestamped
> files) so that you can compare such runs?
> If you let the data accumulate, you'd get one big number for each
> step/package combination, unless you're going to update the parser
> script to display the different data lines as separate entities, one
> for each run).

 I hadn't read the parser script, I assumed it would just generate a different 
bar for each run.  Now I see it would only work in pie-steps mode.

 BTW, histogram is a wrong name.  A histogram would for instance indicate how 
many packages have a build time between 1 and 2 seconds.


Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
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