Re: [Patch v3] x86, irq: Allocate CPU vectors from device local CPUs if possible

2015-05-08 Thread Daniel J Blueman
On Thu, May 7, 2015 at 10:53 AM, Jiang Liu wrote: On NUMA systems, an IO device may be associated with a NUMA node. It may improve IO performance to allocate resources, such as memory and interrupts, from device local node. This patch introduces a mechanism to support CPU vector allocation poli

[Patch v3] x86, irq: Allocate CPU vectors from device local CPUs if possible

2015-05-06 Thread Jiang Liu
On NUMA systems, an IO device may be associated with a NUMA node. It may improve IO performance to allocate resources, such as memory and interrupts, from device local node. This patch introduces a mechanism to support CPU vector allocation policies. It tries to allocate CPU vectors from CPUs on d