From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ram Gupta Subject: Re: [RFC] VM: I have a dream... Date: Tue, 24 Jan 2006 08:36:50 -0600 Message-ID: <728201270601240636p58fead78m781fb104c3d73da9@mail.gmail.com> References: <200601212108.41269.a1426z@gawab.com> <986ed62e0601221155x6a57e353vf14db02cc219c09@mail.gmail.com> <728201270601230705k25e6890ejd716dbfc393208b8@mail.gmail.com> <280A351A008C409CEF43A734@dhcp-2-206.wgops.com> <17365.23510.525066.57628@gargle.gargle.HOWL> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: Michael Loftis , "Barry K. Nathan" , Al Boldi , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Return-path: Received: from uproxy.gmail.com ([66.249.92.207]:13049 "EHLO uproxy.gmail.com") by vger.kernel.org with ESMTP id S932318AbWAXOgw convert rfc822-to-8bit (ORCPT ); Tue, 24 Jan 2006 09:36:52 -0500 Received: by uproxy.gmail.com with SMTP id s2so132374uge for ; Tue, 24 Jan 2006 06:36:50 -0800 (PST) To: Nikita Danilov In-Reply-To: <17365.23510.525066.57628@gargle.gargle.HOWL> Content-Disposition: inline Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On 1/23/06, Nikita Danilov wrote: > > The unique feature that Mac OS X VM does have, on the other hand, is > that it keeps profiles of access patterns of applications, and stores > then in files, associated with executables. This allows to quickly > pre-fault necessary pages during application startup (and this makes OSX > boot so fast). This feature is interesting though I am not sure about the fast boot part of OSX. as at boot time these applications are all started first time. So there were no access pattern as yet. They still have to be demand paged. But yes later accesses may be faster. Thanks Ram gupta