Andi Kleen wrote:
On Wed, Feb 22, 2012 at 09:11:32AM +0400, Konstantin Khlebnikov wrote:
Andi Kleen wrote:
Konstantin Khlebnikov<khlebnikov@xxxxxxxxxx> writes:
Konstantin,
There complete patch-set with my lru_lock splitting
plus all related preparations and cleanups rebased to next-20120210
On large systems we're also seeing lock contention on the lru_lock
without using memcgs. Any thoughts how this could be extended for this
situation too?
We can split lru_lock by pfn-based interleaving.
After all these cleanups it is very easy. I already have patch for this.
Cool. If you send it can try it out on a large system.
See last patch in v3 patchset in lkml or in
git: https://github.com/koct9i/linux/commits/lruvec-v3
This would split the LRU by pfn too, correct?
Of course, I don't see any problems with splitting large zone into some
independent pages subsets. But all sub-pages in huge-page should be in one lru,
that's why I use pfn-based interleaving.
-Andi
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