How much of microkernel?

[Thomas E. Spanjaard]

Matthew Dillon wrote:
:I've always been a fan of microkernel design and I would like to know 
:how much towards microkernel design do you have plans to go with 
:DragonFly? I know you will be incorporating VFS into userland which is 
:normally a feature of a microkernel, but where do you wanna go after 
:that, in regards to microkernelizing DragonFly? Drivers? TCP/IP? other 
:subsystems?
:Petr
    Well, DragonFly is definitely not a microkernel.  We forked off of
    FreeBSD, after all, and that is a fairly monolithic kernel.  I like
    the microkernel concept but putting core elements of an operating
    system into their own protection boxes result in fairly significant
    performance issues.
I think L4 and Mungi have proven that doesn't have to be the case these 
days.

Cheers,
--
        Thomas E. Spanjaard
        tgen at xxxxxxxxxxxxx
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