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Re: Speed Test for Comparison

From "BartC" <bc@freeuk.com>
Newsgroups comp.lang.c
Subject Re: Speed Test for Comparison
Date 2011-12-08 21:43 +0000
Organization A noiseless patient Spider
Message-ID <jbrb2o$nn$1@dont-email.me> (permalink)
References <9kc99pFurU1@mid.individual.net>

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"Mel Smith" <med_cutout_syntel@aol.com> wrote in message
news:9kc99pFurU1@mid.individual.net...

>    I have included below 56 speed test results when using the C-based
> Harbour language along with the MinGw 4.6.1 C compiler

> 12/08/11 09:38:05 Windows XP 5.1.2600 Service Pack 3
> Harbour 3.1.0dev (Rev. 17129) MinGW GNU C 4.6.1 (32-bit) x86
> THREADS: 0
> N_LOOPS: 1000000
> [ T000: empty loop overhead ]...................................0.08

> ====================================================================
> [ T001: x := L_C ]..............................................0.06

Your tests consist of individual assignment statements? Then they are
probably too trivial to be meaningful.

The timings are also a little suspect: an empty loop executed a million
times would be expected to give a timing of zero, even when the compiler
doesn't eliminate the loop completely anyway, as it is likely to do on these
simple tests.

There are loads of well-known benchmarks around, perhaps you should try
testing some of those. Some of the assignments are difficult to reproduce in
C anyway, unless you explain exactly what str(i) means for example.

-- 
Bartc 

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Thread

Speed Test for Comparison "Mel Smith" <med_cutout_syntel@aol.com> - 2011-12-08 10:09 -0700
  Re: Speed Test for Comparison Richard Sanders <lnr729@gmail.com> - 2011-12-08 11:19 -0800
    Re: Speed Test for Comparison "Mel Smith" <med_cutout_syntel@aol.com> - 2011-12-08 13:13 -0700
      Re: Speed Test for Comparison "Mel Smith" <med_cutout_syntel@aol.com> - 2011-12-08 13:18 -0700
        Re: Speed Test for Comparison Seebs <usenet-nospam@seebs.net> - 2011-12-08 20:41 +0000
          Re: Speed Test for Comparison Ben Pfaff <blp@cs.stanford.edu> - 2011-12-08 12:49 -0800
            Re: Speed Test for Comparison Seebs <usenet-nospam@seebs.net> - 2011-12-08 21:53 +0000
      Re: Speed Test for Comparison Seebs <usenet-nospam@seebs.net> - 2011-12-08 20:41 +0000
  Re: Speed Test for Comparison "BartC" <bc@freeuk.com> - 2011-12-08 21:43 +0000
  Re: Speed Test for Comparison ImpalerCore <jadill33@gmail.com> - 2011-12-08 13:58 -0800
  Re: Speed Test for Comparison Keith Thompson <kst-u@mib.org> - 2011-12-08 14:58 -0800
    Re: Speed Test for Comparison "Mel Smith" <med_cutout_syntel@aol.com> - 2011-12-10 11:28 -0700
      Re: Speed Test for Comparison "BartC" <bc@freeuk.com> - 2011-12-10 21:40 +0000
        Re: Speed Test for Comparison "Mel Smith" <med_cutout_syntel@aol.com> - 2011-12-10 19:26 -0700
      Re: Speed Test for Comparison Keith Thompson <kst-u@mib.org> - 2011-12-10 13:49 -0800

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