Some questions about L4 operating system

Yuxin Ren ryx at gwmail.gwu.edu
Thu Jul 16 17:33:24 CEST 2015


On Thu, Jul 16, 2015 at 7:31 AM, Qing Wei <wq_idol at 163.com> wrote:
> Hi,
>   I am a beginner to L4, and very interested in it. I think it is great in
> terms of its minimality and security. However, I have some questions
> about it,
> (1) How is its performance compared to other monolithic kernel,
> say, Linux. Could it make use of multicore, multiprocessor to
> enjoy the performance scalability?
   The performance of Fiasco kernel is not bad, and it should be
better than Linux.
   Fiasco kernel can support multicore very well, while it has deadlock issue.

> (2) How is its ecosystem, fox example, how to support new hardware,
> does it need write the driver from scratch or could it make use of
> Linux driver? And how to write application on it, or, could it run
> Linux application without modification?
> (3) How is its virtualization support, could it run Linux vm, and
> does it need any modification to the guest os?
  The L4Linux is an example of virtualization, and this is a great work.
   I think it needs to modify the guest Linux.
>
> Cheers,
> Qing Wei
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