Messages in this thread | | | Date | Tue, 17 Apr 2007 07:53:55 +0200 | From | Willy Tarreau <> | Subject | Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS] |
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Hi Nick,
On Tue, Apr 17, 2007 at 06:29:54AM +0200, Nick Piggin wrote: (...) > And my scheduler for example cuts down the amount of policy code and > code size significantly. I haven't looked at Con's ones for a while, > but I believe they are also much more straightforward than mainline... > > For example, let's say all else is equal between them, then why would > we go with the O(logN) implementation rather than the O(1)?
Of course, if this is the case, the question will be raised. But as a general rule, I don't see much potential in O(1) to finely tune scheduling according to several criteria. In O(logN), you can adjust scheduling in realtime at a very low cost. Better processing of varying priorities or fork() comes to mind.
Regards, Willy
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