Messages in this thread | | | From | "Lieven Marchand" <> | Date | Mon, 2 Aug 1999 19:55:32 +0200 (CEST) | Subject | Re: Preemptable kernel (was Scheduling latencies news: less RAM = less latency) |
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yodaiken@chelm.cs.nmt.edu writes: > On Mon, Aug 02, 1999 at 08:49:01AM +1000, Keith Owens wrote: > > So it is possible to have a real and complex OS that is preemptable and > > pageable. Although I have to say that the MVS internals to support > > kernel preemption and paging are a lot more complex than the current > > Linux internals. > > MVS spends a lot of time running OS algorithms to allow full > preemption that Linux wastes on running user applications. >
Last time I looked at it, it got to the point they had moved some ASSISTs into microcode. IIRC, some manipulations of the process block. I doubt Intel/Sun/MIPS/IBM is going to accomodate Linux quite that much ;-)
-- Lieven Marchand <mal@bewoner.dma.be> If there are aliens, they play Go. -- Lasker
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