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<div class="links"> '''[Vserver] Interesting times ...:'''<br /> <span class="small">vserver development mailing list</span> <br /> [<nowiki/>[[../|Next/Previous Months]]] [<nowiki/>[http://www.solucorp.qc.ca/miscprj/s_context.hc Main vserver Project Homepage]] [<nowiki/>[http://www.solucorp.qc.ca/mlist/index.hc?list=vserver Howto Subscribe/Unsubscribe]] [<nowiki/>[http://www.paul.sladen.org/vserver/ Paul Sladen's vserver stuff]] </div> <div class="head"> <span id="vserver-interesting-times-..."></span> = [Vserver] Interesting times ... = * <span class="dfn">This message</span>: [ [[#start|Message body]] ] [ [[#options2|More options]] ] * <span class="dfn">Related messages</span>: [ [[0262.html|Next message]] ] [ [[0260.html|Previous message]] ] [ [[0262.html|Next in thread]] ] [ [[#replies|Replies]] ] </div> <div class="mail"> <span id="from"> <span class="dfn">From</span>: Herbert Poetzl <[mailto:herbert_at_13thfloor.at?Subject=Re:%20%5BVserver%5D%20Interesting%20times%20... herbert_at_13thfloor.at]> </span><br /> <span id="date"><span class="dfn">Date</span>: Wed 21 Dec 2005 - 15:24:57 GMT</span><br /> <span id="message-id"><span class="dfn">Message-ID</span>: <20051221152457.GC28006@MAIL.13thfloor.at> </span><br /> Hi Community!<br /> for those who do not know yet, I recently was invited<br /> from the PlanetLab folks to pay a visit to Princeton,<br /> which I did, and besides the fact that it was a lot of<br /> fun, we managed to have a bunch of very productive<br /> discussions ...<br /> I'm going to mention some of the ideas (or solutions)<br /> which will make it into Linux-VServer (or already made<br /> it into the devel branch) sooner or later.<br /> (not all of them are the direct result of my visit,<br /> but I guess it doesn't really matter)<br /> - I/O schedulers come in 4 flavours (noop, deadline,<br /> antcipatory and complete fair queuing (CFQ)), we<br /> decided to focus on the CFQ (which now also supports<br /> priorities) and made that per context (in devel)<br /> - the CPU scheduler will get an overhaul and will<br /> become a hybrid Fair Scheduling partially Work<br /> Preserving multi CPU scheduler :)<br /> this will allow you to do things like:<br /> - hand out CPU 'guarantees' (per unit)<br /> - define a fair share independantly<br /> - restrict a context to a certain maximum<br /> - we will continue to develop ngnet and try to make<br /> it work side by side with the current legacy net<br /> (well, an updated version of that, at least)<br /> this will give you:<br /> - a virtual switch/router like setup, similar to<br /> UML or real machines, on the host (which then<br /> basically becomes the router)<br /> - completely isolated loopback and userspace device<br /> support for tunneling and similar<br /> - ipv6 support inside a guest<br /> - guest per interface accounting (also on the host)<br /> <br /> - pid and other types of 'isolation' will be extended<br /> to do full virtualization without increasing the<br /> overhead (in cooperation with folks from columbia)<br /> this is a prerequisite to context migration and<br /> snapshoting in a cooperation with folks from the<br /> Columbia university<br /> - Private Namespaces become hierarchical, i.e. they<br /> start to propagate certain events, like mount or<br /> unmount (if desired) down the hierarchy ...<br /> this is a mainline 'feature', but it will become<br /> very interesting for Linux-VServer I guess ...<br /> - We will look into creating a high speed kernel<br /> userspace interface to query/poll/report status<br /> information for graphing all kinds of stats easily<br /> - Dynamic Context support will be removed from the<br /> kernel, and moved into userspace.<br /> - Persistent Contexts (even without processes inside)<br /> are now possible<br /> - Context Setup can be done from inside (SETUP state)<br /> or from the outside<br /> all folks interested in helping with one or the<br /> other sub-project please contact me and give me<br /> some details about your plans ...<br /> all folks interested in testing one or the other<br /> feature, or willing to provide some infrastructure<br /> for the folks going to test/develop that, please<br /> send an email and let us know ...<br /> everybody interested in the features and/or similar<br /> features please follow up to this thread so that<br /> we can prioritize them properly ...<br /> ah, and I almost forgot, if you want to sponsor any<br /> of those developments (which would probably set<br /> some priority and allow us to get more work done),<br /> please let us know ...<br /> thanks a lot,<br /> Herbert<br /> _______________________________________________<br /> Vserver mailing list<br /> Vserver@list.linux-vserver.org<br /> http://list.linux-vserver.org/mailman/listinfo/vserver<br /> <span id="received"><span class="dfn">Received on</span> Wed Dec 21 15:25:22 2005</span> </div> <div class="foot"> * <span class="dfn">This message</span>: [ [[#start|Message body]] ] * <span class="dfn">Next message</span>: [[0262.html|Serge E. Hallyn: "Re: [Vserver] Interesting times ..."]] * <span class="dfn">Previous message</span>: [[0260.html|Rik Bobbaers: "[Vserver] vserver and grsec"]] * <span class="dfn">Next in thread</span>: [[0262.html|Serge E. Hallyn: "Re: [Vserver] Interesting times ..."]] * <span id="replies"></span><span class="dfn">Reply</span>: [[0262.html|Serge E. Hallyn: "Re: [Vserver] Interesting times ..."]] * <span id="options2"></span><span class="dfn">Contemporary messages sorted</span>: [ [[date.html#261|By Date]] ] [ [[index.html#261|By Thread]] ] [ [[subject.html#261|By Subject]] ] [ [[author.html#261|By Author]] ] [ [[attachment.html|By messages with attachments]] ] </div> <div align="center"> [<nowiki/>[[../|Next/Previous Months]]] [<nowiki/>[http://www.solucorp.qc.ca/miscprj/s_context.hc Main vserver Project Homepage]] [<nowiki/>[http://www.solucorp.qc.ca/mlist/index.hc?list=vserver Howto Subscribe/Unsubscribe]] [<nowiki/>[http://www.paul.sladen.org/vserver/ Paul Sladen's vserver stuff]]<br /> <span class="small">Generated on Wed 21 Dec 2005 - 15:25:28 GMT by [http://www.hypermail.org/ hypermail 2.1.8]</span> </div>
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