School of Computer Science & Engineering
University of New South Wales
Advanced Operating Systems
COMP9242 2002/S2

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Conclusions

Mach sux $\not\Rightarrow$ microkernels suck
L4 shows that performance might be deliverable
- L $\!^4$ Linux gets close to monolithic kernel performance
- need real multi-server system to evaluate $\mu$ -kernel potential
Jury is still out!
Mach has prejudiced community (see Linus...)
- It'll be an uphill battle!

Gernot Heiser 2002-08-28