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Re: [bongo-devel] 'Random' function failing to be random
From: |
Daniel Brockman |
Subject: |
Re: [bongo-devel] 'Random' function failing to be random |
Date: |
Mon, 02 Apr 2007 01:16:25 +0200 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.92 (gnu/linux) |
Hi Anthony,
> I ran Emacs three times in "full random" mode today and noticed the
> selection of tracks was exactly the same in all cases (for more than
> 20 tracks over a playlist of 500 tracks). I normally direct
> random-playback-mode, where the lack of randomness is less obvious.
>
> The first test was done under Emacs 22.0.93 on FreeBSD, and the second
> one under Emacs 22.0.95 on Debian; they were separated by a few hours.
> In addition, Emacs had already run for quite a while before I started
> Bongo. A third test produced the same results.
Thank you for testing this so thoroughly.
> I'm not sure if the pseudo-random generator is supposed to
> be so predictable.
If it isn't randomly seeded when Emacs is started,
that seems pretty strange.
> (random t) gives more random numbers, though it seems to
> be updated only every second or so (this should be good
> enough for Bongo, though).
Probably we shold call `(random t)' only once. I'm not sure
where, though. Maybe we should just put it at the top level?
Would that not work?
> Early testing has displayed a non-predictable behaviour in
> full random mode
What is full random mode?
--
Daniel Brockman <address@hidden>
- [bongo-devel] 'Random' function failing to be random, Anthony Chaumas-Pellet, 2007/04/01
- Re: [bongo-devel] 'Random' function failing to be random,
Daniel Brockman <=
- Re: [bongo-devel] 'Random' function failing to be random, Daniel Brockman, 2007/04/01
- [bongo-devel] Re: 'Random' function failing to be random, Daniel Jensen, 2007/04/02
- Re: [bongo-devel] Re: 'Random' function failing to be random, Daniel Brockman, 2007/04/02
- [bongo-devel] Re: 'Random' function failing to be random, Daniel Jensen, 2007/04/02
- [bongo-devel] Re: 'Random' function failing to be random, Daniel Jensen, 2007/04/02
- Re: [bongo-devel] Re: 'Random' function failing to be random, Daniel Brockman, 2007/04/02
- [bongo-devel] Re: 'Random' function failing to be random, Daniel Jensen, 2007/04/03
- Re: [bongo-devel] Re: 'Random' function failing to be random, Daniel Brockman, 2007/04/03
- [bongo-devel] Re: 'Random' function failing to be random, Daniel Jensen, 2007/04/04