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On Thursday 14 June 2007 18:57:13 Hemmann, Volker Armin wrote: |
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> read /usr/src/linux/Documentation/sched-desing.txt |
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"design", not "desing" :-) |
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> quote: |
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> - batch scheduling. A significant proportion of computing-intensive tasks |
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> benefit from batch-scheduling, where timeslices are long and processes |
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> are roundrobin scheduled. The new scheduler does such batch-scheduling |
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> of the lowest priority tasks - so nice +19 jobs will get |
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> 'batch-scheduled' automatically. With this scheduler, nice +19 jobs |
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> are in essence SCHED_IDLE, from an interactiveness point of view. |
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That's an interesting description - thanks for the pointer. |
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The kernel includes three schedulers: anticipatory, deadline and (the |
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default) CFQ, whereas the author refers only to "old" and "new" schedulers. |
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I wonder which of the features he describes are common to all three. I also |
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wonder which kernel version introduced the "new" scheduler. I have a reason |
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for this interest, which I intend to describe in a separate thread. |
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-- |
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Rgds |
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Peter Humphrey |
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Linux Counter 5290, Aug 93 |
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-- |
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gentoo-amd64@g.o mailing list |
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