Re: [Automake-NG] [Automake-ng] [PATCH 0/4] Minor refactoring and cleanup for the dist-related targets

[Stefano Lattarini]

Hi Jim, automakers.

On 05/06/2012 08:25 PM, Jim Meyering wrote:
> Stefano Lattarini wrote:
>> These changes don't offer great simplifications nor optimizations, but
>> move some logic from automake execution time and recipe execution
>> time to make runtime, and clean up some old namespace pollution and API
>> leakiness -- which is the general direction Automake-NG should be moving
>> along IMHO.
>>
>> So, ACK for this?  I will push in 72 hours if there is no objection, but
>> I'd like a review before then if possible.
> 
> Hi Stefano,
> 
> I like the ideas and skimmed through the patches (they look fine), but
> did not apply or test.
>
I've now made some simple performance tests on the series.

I have configured a tree with 5000 files in EXTRA_DIST at the top-level,
and 5000 more files in EXTRA_DIST in a $(SUBDIR).  On my slowish Debian
system:

  * "make all" run 100 times in a row
     (before the series): ~ 25 seconds
     (before the series): ~ 26 seconds

  * "make distdir --dry-run" run 100 times in a row
     (before the series): ~ 1 minute
     (before the series): ~ 1 minute and a half

  * "make distdir" run 10 times in a row
     (before the series): ~ 5 minutes and 50 seconds
     (before the series): ~ 6 minutes and 15 seconds

All in all, good enough I think.  I will push by this evening if there is
no further comment.

Regards,
  Stefano