yeah, Daniel and Nikola, you are right.
Before, I find no numa in a host by the numactl --hardware, so I think that
there may be no numa topo.
I made the following test, and find that the libvirt return a numa even if the
value from the numactl is zero.
thanks.
root@tralon-Vostro-1400:~# virsh --version
1.2.2
root@tralon-Vostro-1400:~# numactl --hardware
available: 0 nodes ()
root@tralon-Vostro-1400:~# virsh capabilities
<capabilities>
<host>
<uuid>44454c4c-3500-1039-8038-b4c04f433258</uuid>
<cpu>
<arch>i686</arch>
<model>n270</model>
<vendor>Intel</vendor>
<topology sockets='1' cores='2' threads='1'/>
<feature name='lahf_lm'/>
<feature name='lm'/>
<feature name='pdcm'/>
<feature name='xtpr'/>
<feature name='cx16'/>
<feature name='tm2'/>
<feature name='est'/>
<feature name='vmx'/>
<feature name='ds_cpl'/>
<feature name='dtes64'/>
<feature name='pbe'/>
<feature name='tm'/>
<feature name='ht'/>
<feature name='ss'/>
<feature name='acpi'/>
<feature name='ds'/>
<feature name='pse36'/>
</cpu>
<power_management>
<suspend_mem/>
<suspend_disk/>
<suspend_hybrid/>
</power_management>
<migration_features>
<live/>
<uri_transports>
<uri_transport>tcp</uri_transport>
</uri_transports>
</migration_features>
<topology>
<cells num='1'>
<cell id='0'>
<memory unit='KiB'>3106852</memory>
<cpus num='2'>
<cpu id='0' socket_id='0' core_id='0' siblings='0'/>
<cpu id='1' socket_id='0' core_id='1' siblings='1'/>
</cpus>
</cell>
</cells>
</topology>
<secmodel>
<model>apparmor</model>
<doi>0</doi>
</secmodel>
<secmodel>
<model>dac</model>
<doi>0</doi>
<baselabel type='kvm'>+117:+126</baselabel>
<baselabel type='qemu'>+117:+126</baselabel>
</secmodel>
</host>
</capabilities>
** Changed in: nova
Status: Incomplete => Invalid
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You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1444232
Title:
Only using huge page may filter the usable host
Status in OpenStack Compute (Nova):
Invalid
Bug description:
when only using huge page parameter without numa to create vms, the
current code can generate an instance numatopology with a numa cell.
the solution will filter some hosts which meet the
need of huge page but no numa.
I think that binding the huge page with numa so closely is
unreasonable.
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https://bugs.launchpad.net/nova/+bug/1444232/+subscriptions
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