On 07/12/2016 02:57 PM, Tejun Heo wrote:
Hello,
On Tue, Jul 12, 2016 at 02:51:31PM -0400, Waiman Long wrote:
The last 2 RFC patches were created in response to Andi's comment to have
coarser granularity than per-cpu. In this particular use case, I don't think
global list traversals are frequent
Hello,
On Tue, Jul 12, 2016 at 02:51:31PM -0400, Waiman Long wrote:
> The last 2 RFC patches were created in response to Andi's comment to have
> coarser granularity than per-cpu. In this particular use case, I don't think
> global list traversals are frequent enough to really have any noticeable
On 07/12/2016 10:27 AM, Tejun Heo wrote:
Hello,
On Mon, Jul 11, 2016 at 01:32:11PM -0400, Waiman Long wrote:
The percpu APIs are extensively used in the Linux kernel to reduce
cacheline contention and improve performance. For some use cases, the
percpu APIs may be too fine-grain for distributed
On 07/11/2016 11:14 PM, Boqun Feng wrote:
On Mon, Jul 11, 2016 at 01:32:11PM -0400, Waiman Long wrote:
+/*
+ * Initialize the subnodes
+ *
+ * All the sibling CPUs will be in the same subnode. On top of that, we will
+ * put at most 2 sibling groups into the same subnode. The percpu
+ * topology
Hello,
On Mon, Jul 11, 2016 at 01:32:11PM -0400, Waiman Long wrote:
> The percpu APIs are extensively used in the Linux kernel to reduce
> cacheline contention and improve performance. For some use cases, the
> percpu APIs may be too fine-grain for distributed resources whereas
> a per-node based
On Mon, Jul 11, 2016 at 01:32:11PM -0400, Waiman Long wrote:
> The percpu APIs are extensively used in the Linux kernel to reduce
> cacheline contention and improve performance. For some use cases, the
> percpu APIs may be too fine-grain for distributed resources whereas
> a per-node based allocati
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