numa affinity question
Manuel Sopena Ballesteros
manuel.sb at garvan.org.au
Wed Sep 25 07:49:16 UTC 2019
Dear openstack user group,
I have a server with 2 numa nodes and I am trying to setup nova numa affinity.
[root at zeus-53 ~]# numactl -H
available: 2 nodes (0-1)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 28 29 30 31 32 33 34 35 36 37 38 39 40 41
node 0 size: 262029 MB
node 0 free: 2536 MB
node 1 cpus: 14 15 16 17 18 19 20 21 22 23 24 25 26 27 42 43 44 45 46 47 48 49 50 51 52 53 54 55
node 1 size: 262144 MB
node 1 free: 250648 MB
node distances:
node 0 1
0: 10 21
1: 21 10
openstack flavor create --public xlarge.numa.perf --ram 250000 --disk 700 --vcpus 25 --property hw:cpu_policy=dedicated --property hw:emulator_threads_policy=isolate --property hw:numa_nodes='1' --property pci_passthrough:alias='nvme:4'
openstack server create --network hpc --flavor xlarge.numa.perf --image centos7.6-kudu-image --availability-zone nova:zeus-53.localdomain --key-name mykey kudu-1
This is the xmldump for the created vm
But for some reason the second VM fails to create with the error
<name>instance-00000108</name>
<uuid>5d278c90-27ab-4ee4-aeea-e1bf36ac246a</uuid>
<metadata>
<nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
<nova:package version="18.2.2-1.el7"/>
<nova:name>kudu-4</nova:name>
<nova:creationTime>2019-09-25 07:20:32</nova:creationTime>
<nova:flavor name="xlarge.numa.perf">
<nova:memory>250000</nova:memory>
<nova:disk>700</nova:disk>
<nova:swap>0</nova:swap>
<nova:ephemeral>0</nova:ephemeral>
<nova:vcpus>25</nova:vcpus>
</nova:flavor>
<nova:owner>
<nova:user uuid="91e83343e9834c8ba0172ff369c8acac">admin</nova:user>
<nova:project uuid="b91520cff5bd45c59a8de07c38641582">admin</nova:project>
</nova:owner>
<nova:root type="image" uuid="ff9e09ac-86d5-4698-9883-cf3e6579caec"/>
</nova:instance>
</metadata>
<memory unit='KiB'>256000000</memory>
<currentMemory unit='KiB'>256000000</currentMemory>
<vcpu placement='static'>25</vcpu>
<cputune>
<shares>25600</shares>
<vcpupin vcpu='0' cpuset='27'/>
<vcpupin vcpu='1' cpuset='55'/>
<vcpupin vcpu='2' cpuset='50'/>
<vcpupin vcpu='3' cpuset='22'/>
<vcpupin vcpu='4' cpuset='49'/>
<vcpupin vcpu='5' cpuset='21'/>
<vcpupin vcpu='6' cpuset='48'/>
<vcpupin vcpu='7' cpuset='20'/>
<vcpupin vcpu='8' cpuset='25'/>
<vcpupin vcpu='9' cpuset='53'/>
<vcpupin vcpu='10' cpuset='18'/>
<vcpupin vcpu='11' cpuset='46'/>
<vcpupin vcpu='12' cpuset='51'/>
<vcpupin vcpu='13' cpuset='23'/>
<vcpupin vcpu='14' cpuset='19'/>
<vcpupin vcpu='15' cpuset='47'/>
<vcpupin vcpu='16' cpuset='26'/>
<vcpupin vcpu='17' cpuset='54'/>
<vcpupin vcpu='18' cpuset='42'/>
<vcpupin vcpu='19' cpuset='14'/>
<vcpupin vcpu='20' cpuset='17'/>
<vcpupin vcpu='21' cpuset='45'/>
<vcpupin vcpu='22' cpuset='43'/>
<vcpupin vcpu='23' cpuset='15'/>
<vcpupin vcpu='24' cpuset='24'/>
<emulatorpin cpuset='14-15,17-27,42-43,45-51,53-55'/>
</cputune>
<numatune>
<memory mode='strict' nodeset='1'/>
<memnode cellid='0' mode='strict' nodeset='1'/>
</numatune>
<sysinfo type='smbios'>
<system>
<entry name='manufacturer'>RDO</entry>
<entry name='product'>OpenStack Compute</entry>
<entry name='version'>18.2.2-1.el7</entry>
<entry name='serial'>00000000-0000-0000-0000-0cc47aa482cc</entry>
<entry name='uuid'>5d278c90-27ab-4ee4-aeea-e1bf36ac246a</entry>
<entry name='family'>Virtual Machine</entry>
</system>
</sysinfo>
<os>
<type arch='x86_64' machine='pc-i440fx-rhel7.6.0'>hvm</type>
<boot dev='hd'/>
<smbios mode='sysinfo'/>
</os>
<features>
<acpi/>
<apic/>
</features>
<cpu mode='host-model' check='partial'>
<model fallback='allow'/>
<topology sockets='25' cores='1' threads='1'/>
<numa>
<cell id='0' cpus='0-24' memory='256000000' unit='KiB'/>
</numa>
</cpu>
<clock offset='utc'>
<timer name='pit' tickpolicy='delay'/>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='hpet' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/var/lib/nova/instances/5d278c90-27ab-4ee4-aeea-e1bf36ac246a/disk'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
<controller type='usb' index='0' model='piix3-uhci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<interface type='bridge'>
<mac address='fa:16:3e:d6:1d:78'/>
<source bridge='qbr16cb6622-01'/>
<target dev='tap16cb6622-01'/>
<model type='virtio'/>
<mtu size='1500'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<log file='/var/lib/nova/instances/5d278c90-27ab-4ee4-aeea-e1bf36ac246a/console.log' append='off'/>
<target type='isa-serial' port='0'>
<model name='isa-serial'/>
</target>
</serial>
<console type='pty'>
<log file='/var/lib/nova/instances/5d278c90-27ab-4ee4-aeea-e1bf36ac246a/console.log' append='off'/>
<target type='serial' port='0'/>
</console>
<input type='tablet' bus='usb'>
<address type='usb' bus='0' port='1'/>
</input>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes' listen='192.168.1.53'>
<listen type='address' address='192.168.1.53'/>
</graphics>
<video>
<model type='cirrus' vram='16384' heads='1' primary='yes'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x87' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x86' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x85' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x84' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</hostdev>
<memballoon model='virtio'>
<stats period='10'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
</memballoon>
</devices>
</domain>
QUESTIONS:
Are my vcpus in the same numa node? if not why?
How can I tell from the xmldump that all vcpus are assigned to the same numa node?
Thank you very much
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