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From: witt@mppmu.mpg.de (Myriam Witt)
Subject: Q: Gnat perf, clobber, compile time
Date: 1998/01/19
Message-ID: <69vldh$1hhg$1@cdserv.rzg.mpg.de>#1/1
X-Deja-AN: 317339528
Organization: Rechenzentrum der Max-Planck-Gesellschaft in Garching
Newsgroups: comp.lang.ada
Date: 1998-01-19T00:00:00+00:00
List-Id: <comp.lang.ada>


Hi there, I've got 3 questions:

Platform: Sun Sparc, Solaris 2.5, gnat 3.10p from binary distribution

1) Compilation time for one (of 200) units increases from 5 sec (gnat3.09) to
   1800 sec (!!) (gnat3.10) on Solaris as well as on Dec Unix 4.0. All other
   units are unaffected. Any ideas?

2) In some units during compilation I get messages:
   /home/kroemer/0gnat/basin.ss/al.wrk/table_sort.adb:104: warning: variable
   `anz_i' might be clobbered by `longjmp' or `vfork'
   for the declaration lines even of integer variables:
	Anz_I, Anz_F, Anz_W : Integer := 0;
   What's this?

3) The same application made with Rational Vads or Apex Ada Compilers is
   5 (without -g) to 6.5 (with -g) times faster. Any tips where there might be
   bottlenecks?

Thanks for comments....

-- 
Eike Kr"omer                                 IABG - Ottobrunn
kroemer@iabg.de                              PGP public key available
08106/20626                                  089/6088-3313 
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                       (Tom Lehrer: Lobachevsky)