Messages in this thread | | | Date | Mon, 11 Jun 2007 10:58:35 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] move the kernel to 16MB for NUMA-Q |
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Rene Herman wrote: > > Aligning the kernel image on 4M could gain an additional TLB entry if > the kernel image would fit in one (4M aligned) hugepage, but not in the > 3M that's left after loading the kernel at 1M physical. And that stuff > about the MTRRs... >
Yup. Most CPUs won't actually use a largepage for the kernel if it's below 4 MB (2 MB with PAE, so that's what x86-64 uses.)
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