9.3. デプロイメントの例およびテストシナリオ

parameter_defaults:
  ComputeRealTimeParameters:
    IsolCpusList: "1"
    NovaVcpuPinSet: "1"
    KernelArgs: "default_hugepagesz=1G hugepagesz=1G hugepages=16"

parameter_defaults:
  ComputeRealTimeParameters:
    IsolCpusList: "1"
    NovaVcpuPinSet: "1"
    KernelArgs: "default_hugepagesz=1G hugepagesz=1G hugepages=16"

openstack overcloud roles generate -o ~/rt_roles_data.yaml Controller ComputeRealTime

$ openstack overcloud roles generate -o ~/rt_roles_data.yaml Controller ComputeRealTime

uname -a
cat /proc/cmdline
tuned-adm active
grep ^isolated_cores /etc/tuned/realtime-virtual-host-variables.conf
cat /usr/lib/tuned/realtime-virtual-host/lapic_timer_adv_ns
cat /sys/module/kvm/parameters/lapic_timer_advance_ns
cat /sys/devices/system/node/node0/hugepages/hugepages-1048576kB/nr_hugepages
grep ^vcpu_pin_set /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf

[root@overcloud-computerealtime-0 ~]# uname -a
Linux overcloud-computerealtime-0 4.18.0-80.7.1.rt9.153.el8_0.x86_64 #1 SMP PREEMPT RT Wed Dec 13 13:37:53 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
[root@overcloud-computerealtime-0 ~]# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.18.0-80.7.1.rt9.153.el8_0.x86_64 root=UUID=45ae42d0-58e7-44fe-b5b1-993fe97b760f ro console=tty0 crashkernel=auto console=ttyS0,115200 default_hugepagesz=1G hugepagesz=1G hugepages=16
[root@overcloud-computerealtime-0 ~]# tuned-adm active
Current active profile: realtime-virtual-host
[root@overcloud-computerealtime-0 ~]# grep ^isolated_cores /etc/tuned/realtime-virtual-host-variables.conf
isolated_cores=<IsolCpusList>
[root@overcloud-computerealtime-0 ~]# cat /usr/lib/tuned/realtime-virtual-host/lapic_timer_adv_ns
X (X != 0)
[root@overcloud-computerealtime-0 ~]# cat /sys/module/kvm/parameters/lapic_timer_advance_ns
X (X != 0)
[root@overcloud-computerealtime-0 ~]# cat /sys/devices/system/node/node0/hugepages/hugepages-1048576kB/nr_hugepages
X (X != 0)
[root@overcloud-computerealtime-0 ~]# grep ^vcpu_pin_set /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf
vcpu_pin_set=<NovaVcpuPinSet>