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Re: Size of test output binaries has doubled

From: Carl Sorensen
Subject: Re: Size of test output binaries has doubled
Date: Tue, 21 Jul 2009 12:46:50 -0600

On 7/19/09 3:07 AM, "Graham Percival" <address@hidden> wrote:

> On Sat, Jul 18, 2009 at 09:14:40PM -0600, Carl Sorensen wrote:
>> In preparing information on regression testing for the Contributors' Guide,
>> I happened to check the downloadable regression test results at
>> I noticed that prior to 2.13.2 the test results were approximately 70-80 MB.
>> For 2.13.2 and 2.13.3, the results are approximately 136 MB.
>> Is this an intended (or understood) behavior, or is it a bug of some sort?
> Well, it happened when I started making releases.  We /have/ been
> adding a lot of regtests recently, but I don't imagine that there
> were _that_ many between .1 and .2.
> My initial guesses:
> - GUB uses the system's convert (imagemagick) or pnmtopng or
>   something like that, and kainhofer has a different version of
>   those files than Han-Wen's system.  (and the other version has
>   poorer compresson)
> - 64-bit CPUs naturally produce larger png files.  (hey, I didn't
>   say these were all *good* guess.  ;)
> - Seriously: GUB might be adding extra files to the tarball...
>   maybe a "make clean" somewhere is failing, resulting in a bunch
>   of intermediate files being included?
> I'd encourage any interested parties to compare the files in the
> .1 and later tarballs, and to compare the filesizes.  Remote
> debugging from Vancouver to Germany is a pain, and in any case I'm
> at a music camp starting in 12 hours, so I won't be looking at
> this soon.  (if it's still a problem in Sep, I should have a
> desktop computer available, so debugging GUB will be *much*
> easier)

I've compared the difference in the output for .1 and .2.  The diff file is
available at

The file names are the same, but some .eps files are more than 10x bigger in
.2 than in .1.  And I didn't see *any* .png files in the directories -- the
only occurrence of png in the directory tree was ps-to-png.scm.



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