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Date: Sun, 09 Aug 2009 21:17:40 +0200
From: Georg Bauhaus <rm.tsoh.plus-bug.bauhaus@maps.futureapps.de>
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Subject: Re: Ada Shootout program for K-Nucleotide (patches)
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Date: 2009-08-09T21:17:40+02:00
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Jacob Sparre Andersen wrote:

[printing via Stream_IO]

> I tried on my Debian/stable workstation (made the program repeat the
> test twice in case of initialisation effects):
> 
> Print_Old, SHORT_STRINGS:  12.368589000
> Print_Old, MEDIUM_STRINGS:  1.143411000
> Print_Old, LONG_STRINGS:  0.553761000
> Print, SHORT_STRINGS:  13.874468000
> Print, MEDIUM_STRINGS:  3.012395000
> Print, LONG_STRINGS:  2.274855000
> Print_Old, SHORT_STRINGS:  12.254596000
> Print_Old, MEDIUM_STRINGS:  1.140442000
> Print_Old, LONG_STRINGS:  0.573983000
> Print, SHORT_STRINGS:  13.666659000
> Print, MEDIUM_STRINGS:  3.014188000
> Print, LONG_STRINGS:  2.286064000


Thanks.  (I have in the meantime found similar results
on Mac OS X, BTW.)
Possible conclusion: for long strings, copying dominates
and should be avoided, call Stream_IO.Write for the text
to be appended ...?