Messages in this thread |  | | Date | Mon, 17 Feb 2003 15:15:45 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: [PATCH][2.5] Don't schedule tasks on offline cpus |
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On Mon, 17 Feb 2003, Zwane Mwaikambo wrote:
> We don't want to allow a cpu going offline to keep doing scheduler work > so let it exit early, otherwise we'd keep pulling in tasks every timer > tick.
i'd rather have all the hotplug CPU code to do this kind of stuff completely out of line. Start up a max-RT-priority housekeeping task and just clean the runqueue and deregister the CPU in one atomic pass - look at how the migration threads do similar stuff. No need to contaminate various codepaths with 'is this CPU online' checks.
Ingo
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