On Mon, Nov 22, 2010 at 11:51:52PM +0800, Américo Wang wrote: > On Mon, Nov 22, 2010 at 08:01:04AM +0800, Shaohui Zheng wrote: > >On Sun, Nov 21, 2010 at 10:45:11PM +0800, Américo Wang wrote: > >> On Wed, Nov 17, 2010 at 10:08:04AM +0800, shaohui.zheng@xxxxxxxxx wrote: > >> >From: Shaohui Zheng <shaohui.zheng@xxxxxxxxx> > >> > > >> >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. > > > >Again, we already try to discribe the difference between logcial cpu > >online/offline and physical cpu online/offline many times. > > > > I see, with "maxcpus=" we will only have the specified number > of CPU's which can be online/offline, you are trying to bring > the rest of CPU's hidden by "maxcpus=". :) Correct? Yes, when we online the rest CPUs, it test our cpu hot-add code logical. > > I think the idea is cool, but I think you need to improve > the documetion, for people who don't follow the hardware > concepts like me. ;) CPU hot-add is supported by only a few hardwares, so many users might never see such hardware, we should document it better. thanks for the remind. > > Thanks. > > -- > Live like a child, think like the god. > -- Thanks & Regards, Shaohui -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>