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Re: Darwin on L4
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Re: Darwin on L4


  • Subject: Re: Darwin on L4
  • From: Tom Birch <email@hidden>
  • Date: Sun, 2 Apr 2006 12:04:48 +1000

L4 is a 2nd generation Microkernel, whereas Mach is one of the first attempts. It has better IPC performance (although this is synchronous and thread-id based, with Mach IPC being asynchronous and capability based) , a much smaller code base, and less policy enforced in the kernel. For performance figures, this is a good read: http:// os.inf.tu-dresden.de/~jork/papers/sosp97.pdf otherwise you can read all about L4 here: http://ertos.nicta.com.au/research/l4/

Tom

On 01/04/2006, at 00:26:54, André-John Mas wrote:

Out of curosity, what advantages does the L4 Microkernel provide over the current one?

Andre

On 31-Mar-06, at 02:03 , Tom Birch wrote:

We've been working on porting Darwin (currently working with the 8.2 source base) to the L4 Microkernel for a while, and now we've just made a release. The complete source is available, as well as a QEMU boot image, and instructions for booting on real hardware. See http://www.ertos.nicta.com.au/software/darbat/ for more details.

Any feedback or questions are welcome.

Tom
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