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Hi > Things are changing, with memory hot-add remove, CPU hotplug , the topology can > change and is no longer static. One can create fake NUMA nodes on the fly using > a boot option as well. agreed. > Since we're talking of parallel reclaims, I think it's a function of CPUs and > Nodes. I'd rather keep it as a sysctl with a good default value based on the > topology. If we end up getting it wrong, the system administrator has a choice. > That is better than expecting him/her to recompile the kernel and boot that. A > sysctl does not create problems either w.r.t changing the number of threads, no > hard to solve race-conditions - it is fairly straight forward sorry, I don't understand yet. I think my patch is already function of CPUs and Nodes. per zone limit indicate propotional #cpus and #nodes. please tell me the topology that per zone limit doesn't works so good. I think boot option and sysctl should be used only while -mm for get various feedback. end up, we should select more better default, and remove sysctl. - kosaki -- 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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