Messages in this thread | | | Date | Thu, 10 Jul 2008 16:05:31 -0500 | From | Christoph Lameter <> | Subject | Re: [RFC 00/15] x86_64: Optimize percpu accesses |
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Jeremy Fitzhardinge wrote:
> Percpu on i386 hasn't been a point of discussion. It works fine, and > has been working fine for a long time. The same mechanism would work > fine on x86-64. Its only "issue" is that it doesn't support the broken > gcc abi for stack-protector.
Well that is one thing and then the scaling issues, and the support of the new cpu allocator, new arch independent cpu operations etc.
> The problem is all zero-based percpu on x86-64.
The zero based stuff will enable a lot of things. Please have a look at the cpu_alloc patchsets.
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