Messages in this thread | | | Date | Thu, 9 Feb 2006 10:04:29 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] percpu data: only iterate over possible CPUs |
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Ashok Raj <ashok.raj@intel.com> wrote: > > The problem was with ACPI just simply looking at the namespace doesnt > exactly give us an idea of how many processors are possible in this platform.
We need to fix this asap - the performance penalty for HOTPLUG_CPU=y, NR_CPUS=lots will be appreciable.
Do any x86 platforms actually support CPU hotplug?
Does the ACPI problem which you describe occur with present-CPUs, or only with possible-but-not-present ones? - 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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