From owner-freebsd-arch Wed Nov 15 22:31:35 2000 Delivered-To: freebsd-arch@freebsd.org Received: from grimreaper.grondar.za (grimreaper.grondar.za [196.7.18.18]) by hub.freebsd.org (Postfix) with ESMTP id 1267137B4CF for ; Wed, 15 Nov 2000 22:31:31 -0800 (PST) Received: from grondar.za (localhost [127.0.0.1]) by grimreaper.grondar.za (8.11.1/8.11.1) with ESMTP id eAG6VLD68299; Thu, 16 Nov 2000 08:31:21 +0200 (SAST) (envelope-from mark@grondar.za) Message-Id: <200011160631.eAG6VLD68299@grimreaper.grondar.za> To: Sheldon Hearn Cc: arch@FreeBSD.ORG Subject: Re: RANDOMDEV inspired realitycheck regarding i386/i486... References: <2533.974316644@axl.fw.uunet.co.za> In-Reply-To: <2533.974316644@axl.fw.uunet.co.za> ; from Sheldon Hearn "Wed, 15 Nov 2000 21:30:44 +0200." Date: Thu, 16 Nov 2000 08:31:21 +0200 From: Mark Murray Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Unless there are other undisclosed issues, I think we may be putting > the cart before the horse here. Mark Murray has at least two different > avenues down which performance improvements for the random device lie: "three". > * counter jitter instead of getnanotime(2) > * rijndael instead of blowfish * Use a circular buffer instad if a TAILQ-fifo to store the entropy harvesting; this removes expensive malloc(9)s from the harvesting procedure. > Perhaps it would be wise to hold off on reminiscing about the good old > days, when FreeBSD's ancestors would operate with less memory than > FreeBSD uses to wipe its bottom, until we're actually sure that the only > issue raised is a real issue. :-) M -- Mark Murray Join the anti-SPAM movement: http://www.cauce.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message