From: John McCormick <mccormick@cs.uni.edu>
Subject: Re: Real Time IO routines
Date: Sat, 27 Oct 2007 05:40:31 -0700
Date: 2007-10-27T05:40:31-07:00 [thread overview]
Message-ID: <1193488831.655432.315370@19g2000hsx.googlegroups.com> (raw)
In-Reply-To: <1193433267.671789.134690@50g2000hsm.googlegroups.com>
On Oct 26, 4:14 pm, andrew <andrew.carr...@okstate.edu> wrote:
>
>
> start := clock;
> --I run my algorithm here
> finish := clock;
> ada.Text_IO.put_line("time = " & duration'image(to_duration(finish -
> start)));
>
> the output is always time = 0.000000000. I know it had to take some
> time because it takes about 10 seconds for the program to reach that
> point in the code. Overflow maybe?
For years I used the identical logic in an exercise in plotting
running times for various sorting algortihms in a unit on Big-O. It
worked fine for the old GNAT (Ada 95). Last year when I recompiled it
with GNAT GPL, I got the same results as you - all times gave zero.
When I added a delay 10.0, it worked as Adam reported. I meant to
submit a bug report, but never got around to writing it up. I haven't
tried it with the latest GPL version.
John
next prev parent reply other threads:[~2007-10-27 12:40 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-26 14:58 Real Time IO routines andrew
2007-10-26 16:43 ` Anh Vo
2007-10-26 16:53 ` andrew
2007-10-26 17:04 ` Anh Vo
2007-10-26 17:21 ` andrew
2007-10-26 18:31 ` Anh Vo
2007-10-26 18:36 ` Ludovic Brenta
2007-10-26 20:00 ` andrew
2007-10-26 20:29 ` Ludovic Brenta
2007-10-26 20:46 ` Dmitry A. Kazakov
2007-10-26 20:33 ` Dmitry A. Kazakov
2007-10-26 21:14 ` andrew
2007-10-26 21:54 ` Anh Vo
2007-10-26 22:34 ` Adam Beneschan
2007-10-27 1:58 ` tmoran
2007-10-27 12:40 ` John McCormick [this message]
2007-10-27 20:12 ` andrew
2007-10-26 17:12 ` Ed Falis
2007-10-27 8:56 ` anon
2007-10-27 10:18 ` Dmitry A. Kazakov
2007-10-27 20:15 ` anon
2007-10-27 20:49 ` Dmitry A. Kazakov
2007-10-27 21:51 ` Simon Wright
2007-10-28 11:35 ` Ludovic Brenta
2007-10-30 14:37 ` Simon Clubley
2007-10-30 13:47 ` Ludovic Brenta
2007-10-30 14:46 ` Jean-Pierre Rosen
2007-10-31 14:38 ` Ada coding standards, was: " Simon Clubley
2007-10-31 18:02 ` anon
2007-10-31 19:23 ` Georg Bauhaus
2007-10-31 20:40 ` John W. Kennedy
2007-11-01 11:27 ` Stephen Leake
2007-11-01 20:38 ` anon
2007-10-29 19:28 ` Real Time IO routines -- answering Simon Wright part 1 anon
2007-10-29 21:24 ` Georg Bauhaus
2007-10-29 21:31 ` Georg Bauhaus
2007-10-29 22:01 ` Dmitry A. Kazakov
2007-10-29 22:38 ` Keith Thompson
2007-10-30 0:58 ` tmoran
2007-10-30 16:35 ` Real Time IO routines answering Simon Wright part 2 anon
2007-10-30 21:50 ` Simon Wright
2007-10-31 15:35 ` Adam Beneschan
2007-10-31 20:08 ` anon
2007-10-31 21:08 ` Georg Bauhaus
2007-10-31 21:42 ` Markus E L
2007-11-01 1:00 ` Adam Beneschan
2007-10-28 1:15 ` Real Time IO routines Jeffrey Creem
2007-10-29 16:18 ` Adam Beneschan
2007-10-29 16:40 ` Robert A Duff
2007-10-29 17:26 ` Adam Beneschan
2007-10-29 22:34 ` Keith Thompson
2007-10-29 17:25 ` Jean-Pierre Rosen
2007-11-15 4:27 ` Randy Brukardt
2007-11-15 4:27 ` Randy Brukardt
2007-10-29 18:53 ` andrew
2007-10-29 22:35 ` Keith Thompson
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