Messages in this thread | | | Date | Sat, 15 Apr 2006 15:32:10 +1000 | From | Nick Piggin <> | Subject | Re: [PATCH 00/05] robust per_cpu allocation for modules |
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Steven Rostedt wrote:
> would now create a variable called per_cpu_offset__myint in > the .data.percpu_offset section. This variable will point to the (if > defined in the kernel) __per_cpu_offset[] array. If this was a module > variable, it would point to the module per_cpu_offset[] array which is > created when the modules is loaded.
If I'm following you correctly, this adds another dependent load to a per-CPU data access, and from memory that isn't node-affine.
If so, I think people with SMP and NUMA kernels would care more about performance and scalability than the few k of memory this saves.
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