Messages in this thread | | | Date | Mon, 8 May 2006 01:29:05 -0500 | From | Nathan Lynch <> | Subject | Re: [PATCH 0/10] bulk cpu removal support |
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Shaohua Li wrote: > CPU hotremove will migrate tasks and redirect interrupts off dead cpu. > To remove multiple CPUs, we should iteratively do single cpu removal. > If tasks and interrupts are migrated to a cpu which will be soon > removed, then we will trash tasks and interrupts again. The following > patches allow remove several cpus one time. It's fast and avoids > unnecessary repeated trash tasks and interrupts. This will help NUMA > style hardware removal and SMP suspend/resume. Comments and suggestions > are appreciated.
Some quantification of the benefits of adding this complexity would be appreciated. Like, how long does it take to offline all the cpus in a node serially, and how much faster is the bulk method? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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