Messages in this thread | | | Date | Tue, 1 Mar 2011 14:41:55 -0800 | Subject | Re: [RFC] Reverting NUMA-affine page table allocation | From | Yinghai Lu <> |
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On Sat, Feb 26, 2011 at 6:37 AM, Tejun Heo <tj@kernel.org> wrote: > Hello, > > I've been looking through NUMA-affine page table allocation code and > the proposed changes, and there currently are the a couple of > problems. > > 1. Holes or misaligned nodes will force use of smaller sized mappings. > Patches to fix the problem have been posted by Yinghai[1].
git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-2.6-yinghai.git memblock
> > 2. find_early_table_space() always calculates the amount of the needed > space from 0 to the specified @end. As nodes are registered, each > node would try to allocate accumulative amount of space for page > table. This probably wouldn't cause any actual problem (may affect > emulated configurations a bit tho).
interesting.
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