On Jan 18, 2014, at 12:03 AM, Wangshen (Peter) <pete...@huawei.com> wrote:
>> -----Original Message----- >> From: Vishvananda Ishaya [mailto:vishvana...@gmail.com] >> Sent: Friday, January 17, 2014 1:01 AM >> To: OpenStack Development Mailing List (not for usage questions) >> Cc: Jinbo (Justin) >> Subject: Re: [openstack-dev] question of vcpu-memory-hotplug progress > >> Can you provide more information on how this is implemented? Support in >> kvm seems spotty and there are likely guests that don't support it all. The >> memory hotplug idea doesn't even seem to exist. > > Cpu hotplug feature has been implemented in since qemu(version 1.6.2) and > libvirt(version 1.2). Based on them we did a preliminary implementation > (using libvirt's setvpusflags interfaces), and successfully tested on the > guest (both fedora 18 and windows 2008 datacenter edition). > Although some older operating system does not support cpu hotplug, we still > think it is useful for someone who use the operating system which support. > >> Note that you need to set a milestone before it will be put in the queue to >> be reviewed. >> >> https://wiki.openstack.org/wiki/Blueprints#Blueprint_Review_Criteria >> >> In this particular case I think there needs to be a lot more information >> about the plan for implementation before I would think it is valuable to >> spend time on this feature. >> > > The current bluprint contains cpu hotplug and memory hotplug features. But > the two features are independent with each other. So whether it's better to > split it into two blueprints, cpu hotplug and memory hotplug, for > accelerating the progress of the blueprints and easy to follow the progress? > If you agree with our suggestion, we will submit a new blueprint of cpu > hotplug, as Blueprint_Review_Criteria. Yes split it into multiple blueprints, one for each feature. Vish > > Thanks. > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
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