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From: Toon Moene <toon@moene.indiv.nluug.nl>
To: Marc Lehmann <pcg@goof.com>
Cc: egcs@cygnus.com
Subject: Re: Performance measurements
Date: Fri, 03 Jul 1998 07:20:00 -0000	[thread overview]
Message-ID: <9807031404.AA00696@moene.indiv.nluug.nl> (raw)
In-Reply-To: <19980702195628.31642@cerebro.laendle>

>  I got a testcase written in C in early 1996! (three
>  different matrix multiply algorithms). This testcase
>  resulted in the -mstack-align-double switch of pgcc, and
>  support for this in glibc and djgpp (not yet distributed,
>  though)

We got one end May / beginning of June '96.  Fortunately, we were  
able to help the guy with telling him to "SAVE", i.e. "make static"  
in C-speak, a handful of variables.

However, the general problem had already been brought to the  
attention of the gcc2 mailing list on the 24th of February '96 by  
Robert Dewar (dewar@gnat.com)

>  For P5 and P6 machines, it is important to 8-byte align
>  double floats, I have to check the alignment requirement
>  for 80-bit reals, I would guess it is also 64-bits but
>  I am not sure about that.

Cheers,
Toon.

  reply	other threads:[~1998-07-03  7:20 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1998-06-24  2:28 Martin Kahlert
1998-06-24  8:51 ` David S. Miller
1998-06-24 10:08 ` Gerald Pfeifer
1998-06-25  3:09 ` Jeffrey A Law
     [not found] ` <3590D5AE.167EB0E7@iis.fhg.de>
     [not found]   ` <19980624124843.A15248@keksy.mchp.siemens.de>
     [not found]     ` <3591031A.2781E494@iis.fhg.de>
     [not found]       ` <19980624170051.21290@haegar.physiol.med.tu-muenchen.de>
1998-06-25  3:09         ` Performance measurements (thanks and conclusion) Martin Kahlert
1998-06-26  1:05 ` Performance measurements Aubert Pierre
1998-06-27  2:25   ` Jeffrey A Law
1998-06-29 22:34 ` Rask Ingemann Lambertsen
1998-07-01  3:42   ` Nicholas Lee
1998-07-01 21:20 ` Marc Lehmann
1998-07-02  7:14   ` Craig Burley
1998-07-02 22:44     ` Marc Lehmann
1998-07-03  7:20       ` Toon Moene [this message]
1998-07-02 15:15   ` Joern Rennecke
1998-06-24 21:23 N8TM
1998-06-25  3:09 Christian Iseli
1998-06-25  6:50 Brad M. Garcia
1998-06-27 15:52 John Wehle

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