Messages in this thread | | | From | (Larry McVoy) | Subject | Re: Interesting scheduling times | Date | Thu, 17 Sep 1998 23:57:23 -0600 |
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Richard Gooch <rgooch@atnf.csiro.au>: : A good RT system would allow you to put it all on one computer and : data would not need to be shipped around (you'd use threads or : SHM). However, on such a system you will have a considerable number of : (low priority) user processes sitting on the run queue (the latest : generation of data reduction software is very modular and has lots of : processes doing different parts of the work). A dozen processes is not : unreasonable.
A dozen CPU bound processes? You've seen this? Or you think it would happen? In every system like this that I've seen (and I've seen a bunch), people eventually weed it down to a CPU bound process/CPU, maybe two. The throughput of the system slows down otherwise. This is /especially/ true on RT applications - any inefficiency can't be tolerated.
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