Lpc2000

Yes, I hope that Keil responds as well.  If for no other reason than
to admit to failing to turn on the MAM or to provide other reasons for
these discrepancies.

--- In lpc2000@yahoogroups.com, Rod Moffitt <rodlist@r...> wrote:
> Great work Thiadmer!
> 
> I personally ignore benchmarks because most of the time the results are 
> skewed one way or another, and rarely are the test parameters and raw 
> results publicized.
> 
> If anyone from Keil is lurking on this list I would highly recommend 
> responding. It either appears that your techs borked the tests or used 
> some sort of 'invalid' test setup. In either case I recommend
re-running 
> the tests, and this time providing the raw tests results. In case
you made 
> a mistake I would suggest an apology on your web site.
> 
> On a side note, I use GNU tools not because of the speed/power
(either for
> or against) however because of the openness of the source. I have used
> many closed-source tools and each vendor has let me down at least once
> with support (no matter what large or small company I worked for). With 
> GNU I can always take a look at the source in case of a problem. And
(more 
> importantly!) I can choose WHATEVER OS I want for development thanks to 
> having source for all the tools.
> 
> On another side note: at work I work with QNX, and guess what their 
> compiler is? It's referred to as 'qcc' yet in fact it is GCC (2.95.3
and 
> 3.3 at the moment). Many other closed source vendors in fact use
GCC, yet 
> don't necessarily publicize the fact. So if anyone ever thinks GCC
is not 
> 'good enough' for real embedded development, think again!
> 
> - Rod
> 
> --
>                           ___  ____  ___    _      ___
>   Rod Moffitt            / _ \/ __ \/ _ \  (_)__  / _/__
>   http://rod.info       / , _/ /_/ / // / / / _ \/ _/ _ \
>   rodANTISPAM@r... /_/|_|\____/____(*)_/_//_/_/ \___/
>   =======================================================
>   ~ Where loved ones are remembered http://memoriam.org ~
> 
> On Wed, 4 May 2005, ukkie9a wrote:
> 
> > Hello everyone,
> >
> > To satisfy my curiosity (and verify the code generation of the GNU
> > compiler), I repeated the Dhrystone benchmark with GNU GCC after
> > reading the tables in the (otherwise nice book) "The Insider's Guide
> > to the Philips ARM7-Based Microcontrollers" by Trevor Martin (see
> > http://www.hitex.co.uk/arm/lpc2000book/index.html) and finding the
> > same table on KEILs web site.
> >
> > My results, which you can read about on
> > http://compuphase.com/dhrystone.htm, differ from the published results
> > by a factor of 5!
> >
> > Kind regards,
> > Thiadmer Riemersma
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >