From owner-cvs-src@FreeBSD.ORG Sat Apr 10 12:40:34 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5B02C16A4CE for ; Sat, 10 Apr 2004 12:40:34 -0700 (PDT) Received: from hanoi.cronyx.ru (hanoi.cronyx.ru [144.206.181.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 846C143D48 for ; Sat, 10 Apr 2004 12:40:33 -0700 (PDT) (envelope-from rik@cronyx.ru) Received: (from root@localhost) by hanoi.cronyx.ru id i3AJc6mx050077 for cvs-src@FreeBSD.org.checked; (8.12.8/vak/2.1) Sat, 10 Apr 2004 23:38:06 +0400 (MSD) (envelope-from rik@cronyx.ru) Received: from cronyx.ru (rik.cronyx.ru [172.22.4.1]) by hanoi.cronyx.ru with ESMTP id i3AJZfg5049905; (8.12.8/vak/2.1) Sat, 10 Apr 2004 23:35:42 +0400 (MSD) (envelope-from rik@cronyx.ru) Message-ID: <40784EA4.2020604@cronyx.ru> Date: Sat, 10 Apr 2004 23:44:36 +0400 From: Roman Kurakin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020610 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Luigi Rizzo References: <4077FE63.4010602@cronyx.ru> <9455.1081606743@critter.freebsd.dk> <20040410083856.A30378@xorpc.icir.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: Bruce M Simpson cc: src-committers@FreeBSD.org cc: cvs-src@FreeBSD.org cc: cvs-all@FreeBSD.org cc: Poul-Henning Kamp cc: Mark Murray cc: Nate Lawson Subject: Re: cvs commit: src/sys/modules/random Makefile src/sys/dev/random randomdev.h randomdev_soft.c randomdev_soft.h yar X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Apr 2004 19:40:34 -0000 Luigi Rizzo wrote: >On Sat, Apr 10, 2004 at 04:19:03PM +0200, Poul-Henning Kamp wrote: >... > > >>>How about computations? >>> >>> >>Well, depends what kind of computations you are talking about obviously. >> >>I specifically didn't list that because I have seen so many examples >>of monte carlo analysis done with rand() that I could cry. People >> >> > >maybe just as many as those that [unvoluntarily] rely >on uninitialized variables :) > My knowledge in that area may be near those one. (I am about who may use insystem random, not about variables :-) But as far as I know there is some methods of estimation that this generator is random enougth for that kind of computation. So we may have a set of such tests which would show how random we are. And I am sure, most of task didn't require supper-random-generator, but having some fast-good-enougth without special hardware would be very nice. Probably if we would have some gradation here we might have a few computation levels. Again, this was just some thoughts. This is not my area. Best regards, rik