Messages in this thread | | | Date | Tue, 21 Jul 2009 20:54:19 -0700 (PDT) | Subject | Re: [PATCH 19/20] sparc64: use embedding percpu first chunk allocator | From | David Miller <> |
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From: Tejun Heo <tj@kernel.org> Date: Tue, 21 Jul 2009 19:26:18 +0900
> sparc64 currently allocates a large page for each cpu and partially > remap them into vmalloc area much like what lpage first chunk > allocator did. As a 4M page is used for each cpu, this results in > very large unit size and also adds TLB pressure due to the double > mapping of pages in the first chunk. > > This patch converts sparc64 to use the embedding percpu first chunk > allocator which now knows how to handle NUMA configurations. This > simplifies the code a lot, doesn't incur any extra TLB pressure and > results in better utilization of address space. > > Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: David S. Miller <davem@davemloft.net>
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