Messages in this thread | | | Date | Wed, 16 Jan 2002 10:27:33 -0500 (EST) | From | Bill Davidsen <> | Subject | Re: [2.4.17/18pre] VM and swap - it's really unusable |
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On Tue, 15 Jan 2002, Daniel Phillips wrote:
> On January 15, 2002 06:26 am, Mark Hahn wrote: > > > than the task's float, the completion time of the schedule as a whole will be > > > delayed. This is no different for a computer than it is for a group of > > > people, it is still a scheduling problem. Delaying any random task risks > > > > it is quite different. with computers, there are often STRONG benefits > > to clustering, batching, chunking, piggybacking, whatever you want to call it. > > It's no different.
Sorry, there are strong benefits from all of the things mentioned. I lack time and inclination to explain how caching works, but there are costs of changing from one thing to another.
The other issue is that processes doing i/o (blocking before a whole timeslice) will run better if they get priority when they can use the CPU. Therefore a system needs to recognize (and be tuned) for both of these.
Computers are very different than people in lines.
-- bill davidsen <davidsen@tmr.com> CTO, TMR Associates, Inc Doing interesting things with little computers since 1979.
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