Re: [5/8,v3] NUMA Hotplug Emulator: support cpu probe/release in x86

Américo Wang
2010-11-21T14:42:04Z

On Wed, Nov 17, 2010 at 10:08:04AM +0800, shaohui.zheng@intel.com wrote:
>From: Shaohui Zheng <shaohui.zheng@intel.com>
>
>Add cpu interface probe/release under sysfs for x86. User can use this
>interface to emulate the cpu hot-add process, it is for cpu hotplug
>test purpose. Add a kernel option CONFIG_ARCH_CPU_PROBE_RELEASE for this
>feature.
>
>This interface provides a mechanism to emulate cpu hotplug with software
> methods, it becomes possible to do cpu hotplug automation and stress
>testing.
>

Huh? We already have CPU online/offline...

Can you describe more about the difference?

Thanks.