From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jacob Gorm Hansen Subject: Re: uClibc Date: Wed, 22 Dec 2004 00:36:29 +0100 Message-ID: <41C8B37D.9060405@diku.dk> References: <41C88416.4070800@concepts.net.nz> <41C8894D.8060201@diku.dk> <41C88D03.2090409@concepts.net.nz> <41C8917A.5070106@diku.dk> <20041221143457.P10500@demos.bsdclusters.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20041221143457.P10500@demos.bsdclusters.com> Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Kip Macy Cc: Jerome Brown , xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Kip Macy wrote: > At the risk of starting the construction of a bikeshed, what kind of > hardware are you running on? The reason for the increased appeal of > virtual machines over the past few years is that hw performance and > memory availability has increased faster than applications' needs. I am running on 2.4GHz Dell Optiplexes with 512MB of memory and no swap configured for dom0. Currently I have 16 of them, but in the long run I am hoping to run this on 1000+ nodes with similar config. That means any memory I waste I can multiply with an arbitrarily large number to make it sound scary. My approach has (to me) many other nice properties, apart from the memory footprint, some of the more important ones being security (much reduced trusted computing base) and performance+isolation (not using shadow page tables, not relying on an external checkpointing service in dom0, being able to delay scheduling badly behaving processes during migration, knowing who is in my ARP cache, etc.), as well as overall better alignment with Saltzer's end-to-end argument. I would like to create a platform where anyone can purchase resources, without any kind of trust that customer are playing nice, and I think that I am on the right path. Before Xen came along, I created a similar platform (called NomadBIOS), based on L4, sporting what I now call hosted or managed migration. The system I am building now is my 'second system', for better or worse ;-) I probably spent more time thinking about these issues than most people (though that is no guarantee that my conclusions are correct). > -Kip Jacob ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/