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    SubjectRe: [PATCH 1/1] SGI X86 UV: Provide a System Activity Indicator driver
    Ingo Molnar wrote:
    > * Mike Travis <> wrote:
    >> arch/x86/kernel/genx2apic_uv_x.c | 138 +++++++++++++++++++++++++++++++++++++++
    >> include/asm-x86/uv/uv_hub.h | 62 +++++++++++++++++
    > hm, why is this in genx2apic_uv_x.c, not a separate file?

    This keeps it in the uv_hub percpu area, a chunk of memory that is accessed
    quite often for many of the basic UV operations. This should increase the
    probability that the data is already located in the cpu's cache.


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