Linked by Thom Holwerda on Tue 9th May 2006 21:25 UTC, submitted by luzr
OSNews, Generic OSes Torvalds has indeed chimed in on the micro vs. monolithic kernel debate. Going all 1992, he says: "The whole 'microkernels are simpler' argument is just bull, and it is clearly shown to be bull by the fact that whenever you compare the speed of development of a microkernel and a traditional kernel, the traditional kernel wins. The whole argument that microkernels are somehow 'more secure' or 'more stable' is also total crap. The fact that each individual piece is simple and secure does not make the aggregate either simple or secure. And the argument that you can 'just reload' a failed service and not take the whole system down is equally flawed." My take: While I am not qualified to reply to Linus, there is one thing I want to say: just because it is difficult to program, does not make it the worse design.
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RE: Abstraction
by renox on Tue 9th May 2006 22:08 UTC in reply to "Abstraction"
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>it yields better results in the long run.

Perhaps, but when?
Not yet: MacOS X show that a micro-kernel can give poor performance (normal it has Mach underneath) if usable, can it provide fault tolerance to faulty drivers? Is-it more stable than say Solaris?
Mmm, I don't think so. So while advantage of micro-kernels are not so easy to get, the inconvenients are real.
Having to do lots of research to get 'not too ugly' performances is good for academics but for the other..

Some other micro-kernels have better performances than Mach (if still slower than monolithic kernels), but apparently their theoretical supeority isn't a good enough argument for FOSS developpers to dump existing monolithic kernels to work on them..

Sure there are some commercial niche player with very good muk, but as evidenced by their niche status, having a muk is not in itself a killer feature in general.

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