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December 2014

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schedule
by Vasily A. Sartakov 09 Dec '14

09 Dec '14

Hello. This is a schedule of microkernel devroom @FOSDEM’15 9:00 10 Openning 9:10 50 seL4: Present and Future 10:00 60 A dedicated kernel named TORO 11:00 30 The FLK project 11:30 60 Along the GNU Hurd RPC way 12:30 30 Networking (dinner) 13:00 45 Autopsy of a multiserver deadlock in the HelenOS filesystem layer 13:45 45 Facing the Reality: What's new in the L4Re Operating System 14:30 50 Helenos 15:20 45 Introducing a radically componentized GUI architecture 16:05 20 Network Appliance on top of microkernels -- Vasily A. Sartakov sartakov(a)ksyslabs.org

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Fwd: request for stand (Toro Project)
by Matias Vara larsen 02 Dec '14

02 Dec '14

Dears, I am Matias Vara and Tias Guns has just suggested me that my proposal for a stand fits better as lightningtalk at the microkernel devroom. However, the deadline for such talks already past. There is any possibility to consider my proposal for stand as a proposal for a lighningtalk ? Thanks in advance, Matias. ----- Mensaje reenviado ----- > De: "Tias Guns" <tias(a)fosdem.org> > Para: "Matias Vara larsen" <matias.vara_larsen(a)inria.fr>, stands(a)fosdem.org > Enviados: Martes, 2 de Diciembre 2014 22:09:04 > Asunto: Re: request for stand (Toro Project) > > Hi Matias, > > Thank you for your stand proposal. It has been added to the list of > candidates. > > I must add that a topic like the one you propose makes much more chance > as a lightningtalk (see website), then as a stand. > > Actually, perhaps the best place would be the devroom about microkernels: > https://lists.fosdem.org/pipermail/fosdem/2014-November/002061.html > > Please contact them ASAP as the deadline may be near or have already > past. Feel free to include this communication in it. > > > Kind regards, > Tias > > On 11/19/2014 03:25 PM, Matias Vara larsen wrote: > > Dears, > > > > I am Matias Vara (http://www-sop.inria.fr/members/Matias.Vara_Larsen/) > > founder and main developer of TORO since 2006. Currently, I am doing a > > PhD in Computer Science at INRIA, Nice, France. In this email, I am > > proposing a stand about Toro Kernel project > > (http://sourceforge.net/projects/toro/, > > http://torokerneleng.blogspot.com/) > > In systems with high-grade multiprocessing, we have identified two > > bottlenecks: in the accessing of the memory bus and in the shared > > resources. To deal with these issues, we propose a dedicated kernel > > named TORO that is optimized to run a single multi-threading > > application. TORO is demonstrating an innovative operating system by > > integrating at the same ring level both kernel and the user application > > server. In addition, the accessing to resources (e.g., Filesystem, > > Networking, Memory) is dedicated to specific processor. Then, only the > > CPU where is dedicated the resource is allowed to access to the instance > > of the resource. As a result of this design, the kernel provides direct > > access to all resources without any overhead, and therefore maximizes > > performance for the overall system. > > To sum-up the approach, in TORO, the threads of the user application > > server are distributed evenly on all CPUs and running independently in > > parallel. The memory model chosen is NUMA without pagination. During the > > initialization, the memory is divided proportionally for each processor > > installed on the system. When a thread needs memory, the memory > > allocator returns a free block of memory depending on which CPU the > > thread is running. In the same way, TORO can dedicate resources to > > specific processor, i.e., a FileSystem. This only CPU then can access to > > this instance of FileSystem. The scheduler is based on the cooperative > > threading model, therefore due to this design, TORO can migrate threads > > between CPUs and send messages between threads without using any lock > > instruction. > > FOSDEM is a very good place to discuss general purpose operating systems > > vs. dedicated operative systems. This discussion can be motivated by > > showing the characteristics of TORO. To do so, I am proposing a stand > > with a poster and examples of applications ported to TORO. The aim of > > the poster is to show the goals of the kernel, thus highlighting the > > main differences with a general purpose OS. The examples aim to show how > > the main goals of the kernel have been implemented. These examples are > > currently in the git repository of TORO, and can be easily tested in a > > virtual machine like QEMU or Bochs. > > > > Kinds Regards, Matias. > > > > > > _______________________________________________ > > stands mailing list > > stands(a)lists.fosdem.org > > https://lists.fosdem.org/listinfo/stands > > > >

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