Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965152AbWIRMf0 (ORCPT ); Mon, 18 Sep 2006 08:35:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965155AbWIRMf0 (ORCPT ); Mon, 18 Sep 2006 08:35:26 -0400 Received: from emailer.gwdg.de ([134.76.10.24]:35531 "EHLO emailer.gwdg.de") by vger.kernel.org with ESMTP id S965152AbWIRMfZ (ORCPT ); Mon, 18 Sep 2006 08:35:25 -0400 Date: Mon, 18 Sep 2006 14:34:25 +0200 (MEST) From: Jan Engelhardt To: Rik van Riel cc: yogeshwar sonawane , linux-kernel Subject: Re: How much kernel memory is in 64-bit OS ? In-Reply-To: <450E914C.90203@redhat.com> Message-ID: References: <450DE3DE.50301@redhat.com> <450E914C.90203@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Report: Content analysis: 0.0 points, 6.0 required _SUMMARY_ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 788 Lines: 28 >> > Sure, people said that too when going from 16 bits to 32 bits, >> > but that was only a factor 2^16 difference. This time it's the >> > square of the previous difference. >> >> Not quite the square :) > > 2^32 is the square of 2^16 :) Going from 32 to 64: (2^64 - 2^32) Going from 16 to 32: (2^32 - 2^16) As mentioned above, "the square of the previos" [16 to 32] "difference". Call me nitpicky, but: (2^32 - 2^16)^2 != (2^64 - 2^32) >-- > What is important? What you want to be true, or what is true? Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/