Linked by Michael on Thu 21st Jul 2011 14:08 UTC
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Member since:
2009-03-06
I don't think that must be a given. QNX for instance uses a message-passing, small-privileged-kernel model, and it is known for its real-time performance -- even on 8086 CPUs.
That's probably not the same kind or performance as raw throughput in MPEG encoding, say, and maybe that's why little effort has been put into OSes in this vein outside of research. Or maybe it is that doing this type of OS model is hard, and nonportable (much assembly required). But in today's heightened interest in security and reliability, on hardware so fast that a few % difference in raw throughput makes little difference to most people, maybe more effort ought to be put into this and similar approaches (witness the Genode/L4/Fiasco efforts on ARMish _cell phones_).