[PATCH 00/05] robust per_cpu allocation for modules
nickpiggin at yahoo.com.au
Sat Apr 15 15:32:10 EST 2006
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
SUSE Labs, Novell Inc.
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