Message-Id: <3.0.1.32.19980828095136.00942370@exchange.telindus.be>
Date: Fri, 28 Aug 1998 09:51:36 +0200
To: linux-kernel@vger.rutgers.edu
From: Marnix Coppens <maco@telindus.be>
Subject: Re: 2.1.xxx makes Electric Fence 22x slower
In-Reply-To: <199808261517.JAA24949@nyx10.nyx.net>
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>
>A simple lagged-fibonacci generator like x[i] = x[i-24] + x[i-55] would
>do fine.  Moving to a twisted generator (TGFSR) improves things even more.
>What is arguably the best PRNG currently existing, the Mersenne Twister
>(Can you say "perfect score on the spectral test with up to 600 dimensions",
>boys and girls?), is quite fast.
>

MT19937 has a period of 2^19937 - 1, with a "623-dimensional equidistribution
property". It's available from http://www.math.keio.ac.jp/matumoto/emt.html .
Don't kill their machine though.


Marnix Coppens

---
Reality is that which                   | Artificial Intelligence
when you stop believing                 | stands no chance against
in it doesn't go away. (Philip K. Dick) | Natural Stupidity.


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