Chapter 11. Tuning a Red Hat OpenStack Platform environment 11.1. Pinning emulator threads Emulator threads handle interrupt requests and non-blocking processes for virtual machine hardware emulation. These threads float across the CPUs that the guest uses for processing. If threads used for the poll mode driver (PMD) or real-time processing run on these guest CPUs, you can experience packet loss or missed deadlines. You can separate emulator threads from VM processing tasks by pinning the threads to their own guest CPUs, increasing performance as a result. To improve performance, reserve a subset of host CPUs for hosting emulator threads. Procedure Deploy an overcloud with NovaComputeCpuSharedSet defined for a given role. The value of NovaComputeCpuSharedSet applies to the cpu_shared_set parameter in the nova.conf file for hosts within that role. Create a flavor to build instances with emulator threads separated into a shared pool. Add the hw:emulator_threads_policy extra specification, and set the value to share . Instances created with this flavor will use the instance CPUs defined in the cpu_share_set parameter in the nova.conf file. Note You must set the cpu_share_set parameter in the nova.conf file to enable the share policy for this extra specification. You should use heat for this preferably, as editing nova.conf manually might not persist across redeployments. Verification Identify the host and name for a given instance. Use SSH to log on to the identified host as tripleo-admin. 11.2. Configuring trust between virtual and physical functions You can configure trust between physical functions (PFs) and virtual functions (VFs), so that VFs can perform privileged actions, such as enabling promiscuous mode, or modifying a hardware address. Prerequisites An operational installation of Red Hat OpenStack Platform including director Procedure Complete the following steps to configure and deploy the overcloud with trust between physical and virtual functions: Add the NeutronPhysicalDevMappings parameter in the parameter_defaults section to link between the logical network name and the physical interface. Add the new property, trusted , to the SR-IOV parameters. Note You must include double quotation marks around the value "true". 11.3. Utilizing trusted VF networks Create a network of type vlan . Create a subnet. Create a port. Set the vnic-type option to direct , and the binding-profile option to true . Create an instance, and bind it to the previously-created trusted port. Verification Confirm the trusted VF configuration on the hypervisor: On the compute node that you created the instance, enter the following command: Verify that the trust status of the VF is trust on . The example output contains details of an environment that contains two ports. Note that vf 6 contains the text trust on . You can disable spoof checking if you set port_security_enabled: false in the Networking service (neutron) network, or if you include the argument --disable-port-security when you run the openstack port create command. 11.4. Preventing packet loss by managing RX-TX queue size You can experience packet loss at high packet rates above 3.5 million packets per second (mpps) for many reasons, such as: a network interrupt a SMI packet processing latency in the Virtual Network Function To prevent packet loss, increase the queue size from the default of 512 to a maximum of 1024. Prerequisites Access to the undercloud host and credentials for the stack user. Procedure Log in to the undercloud host as the stack user. Source the stackrc undercloud credentials file: Create a custom environment YAML file and under parameter_defaults add the following definitions to increase the RX and TX queue size: Run the deployment command and include the core heat templates, other environment files, the environment file that contains your RX and TX queue size changes: Example Verification Observe the values for RX queue size and TX queue size in the nova.conf file. You should see the following: Check the values for RX queue size and TX queue size in the VM instance XML file generated by libvirt on the Compute host: Create a new instance. Obtain the Compute host and and instance name: Sample output You should see output similar to the following: Log into the Compute host and dump the instance definition. Example Sample output You should see output similar to the following: 11.5. Configuring a NUMA-aware vSwitch Important This feature is available in this release as a Technology Preview , and therefore is not fully supported by Red Hat. It should only be used for testing, and should not be deployed in a production environment. For more information about Technology Preview features, see Scope of Coverage Details . Before you implement a NUMA-aware vSwitch, examine the following components of your hardware configuration: The number of physical networks. The placement of PCI cards. The physical architecture of the servers. Memory-mapped I/O (MMIO) devices, such as PCIe NICs, are associated with specific NUMA nodes. When a VM and the NIC are on different NUMA nodes, there is a significant decrease in performance. To increase performance, align PCIe NIC placement and instance processing on the same NUMA node. Use this feature to ensure that instances that share a physical network are located on the same NUMA node. To optimize utilization of datacenter hardware, you must use multiple physnets. Warning To configure NUMA-aware networks for optimal server utilization, you must understand the mapping of the PCIe slot and the NUMA node. For detailed information on your specific hardware, refer to your vendor's documentation. If you fail to plan or implement your NUMA-aware vSwitch correctly, you can cause the servers to use only a single NUMA node. To prevent a cross-NUMA configuration, place the VM on the correct NUMA node, by providing the location of the NIC to Nova. Prerequisites You have enabled the filter NUMATopologyFilter . Procedure Set a new NeutronPhysnetNUMANodesMapping parameter to map the physical network to the NUMA node that you associate with the physical network. If you use tunnels, such as VxLAN or GRE, you must also set the NeutronTunnelNUMANodes parameter. Example Here is an example with two physical networks tunneled to NUMA node 0: one project network associated with NUMA node 0 one management network without any affinity In this example, assign the physnet of the device named eno2 to NUMA number 0. Observe the physnet settings in the example heat template: Verification Follow these steps to test your NUMA-aware vSwitch: Observe the configuration in the file /var/lib/config-data/puppet-generated/nova_libvirt/etc/nova/nova.conf : Confirm the new configuration with the lscpu command: Launch a VM with the NIC attached to the appropriate network. Additional resources Discovering your NUMA node topology Section 11.6, "Known limitations for NUMA-aware vSwitches" 11.6. Known limitations for NUMA-aware vSwitches Important This feature is available in this release as a Technology Preview , and therefore is not fully supported by Red Hat. It should only be used for testing, and should not be deployed in a production environment. For more information about Technology Preview features, see Scope of Coverage Details . This section lists the constraints for implementing a NUMA-aware vSwitch in a Red Hat OpenStack Platform (RHOSP) network functions virtualization infrastructure (NFVi). You cannot start a VM that has two NICs connected to physnets on different NUMA nodes, if you did not specify a two-node guest NUMA topology. You cannot start a VM that has one NIC connected to a physnet and another NIC connected to a tunneled network on different NUMA nodes, if you did not specify a two-node guest NUMA topology. You cannot start a VM that has one vhost port and one VF on different NUMA nodes, if you did not specify a two-node guest NUMA topology. NUMA-aware vSwitch parameters are specific to overcloud roles. For example, Compute node 1 and Compute node 2 can have different NUMA topologies. If the interfaces of a VM have NUMA affinity, ensure that the affinity is for a single NUMA node only. You can locate any interface without NUMA affinity on any NUMA node. Configure NUMA affinity for data plane networks, not management networks. NUMA affinity for tunneled networks is a global setting that applies to all VMs. 11.7. Quality of Service (QoS) in NFVi environments You can offer varying service levels for VM instances by using quality of service (QoS) policies to apply rate limits to egress and ingress traffic on Red Hat OpenStack Platform (RHOSP) networks in a network functions virtualization infrastructure (NFVi). In NFVi environments, QoS support is limited to the following rule types: minimum bandwidth on SR-IOV, if supported by vendor. bandwidth limit on SR-IOV and OVS-DPDK egress interfaces. Additional resources Configuring Quality of Service (QoS) policies 11.8. Creating an HCI overcloud that uses DPDK You can deploy your NFV infrastructure with hyperconverged nodes, by co-locating and configuring Compute and Ceph Storage services for optimized resource usage. For more information about hyper-converged infrastructure (HCI), see Deploying a hyperconverged infrastructure . The sections that follow provide examples of various configurations. 11.8.1. Example NUMA node configuration For increased performance, place the tenant network and Ceph object service daemon (OSD)s in one NUMA node, such as NUMA-0, and the VNF and any non-NFV VMs in another NUMA node, such as NUMA-1. CPU allocation: NUMA-0 NUMA-1 Number of Ceph OSDs * 4 HT Guest vCPU for the VNF and non-NFV VMs DPDK lcore - 2 HT DPDK lcore - 2 HT DPDK PMD - 2 HT DPDK PMD - 2 HT Example of CPU allocation: NUMA-0 NUMA-1 Ceph OSD 32,34,36,38,40,42,76,78,80,82,84,86 DPDK-lcore 0,44 1,45 DPDK-pmd 2,46 3,47 nova 5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87 11.8.2. Example Ceph configuration file This section describes a sample Red Hat Ceph Storage configuration file. You can model your configuration file on this one, by substituting values that are appropriate for your Red Hat OpenStack Platform environment. [osd] osd_numa_node = 0 # 1 osd_memory_target_autotune = true # 2 [mgr] mgr/cephadm/autotune_memory_target_ratio = 0.2 # 3 Assign CPU resources for Ceph Object Storage Daemons (OSDs) processes with the following parameters. The values shown here are examples. Adjust the values as appropriate based on your workload and hardware. 1 osd_numa_node : sets the affinity of Ceph processes to a NUMA node, for example, 0 for NUMA-0 , 1 for NUMA-1 , and so on. -1 sets the affinity to no NUMA node. In this example, osd_numa_node is set to NUMA-0 . As shown in Section 11.8.3, "Example DPDK configuration file" , IsolCpusList contains odd numbered CPUs on NUMA-1 , after elements of OvsPmdCoreList are removed. Because the latency-sensitive Compute service (nova) workload is hosted on NUMA-1 , you must isolate the Ceph workload on NUMA-0 . This example assumes that both the disk controllers and network interfaces for the stroage network are on NUMA-0 . 2 osd_memory_target_autotune : when set to true, the OSD daemons adjust their memory consumption based on the osd_memory_target configuration option. 3 autotune_memory_target_ratio : used to allocate memory for OSDs. The default is 0.7 . 70% of the total RAM in the system is the starting point, from which any memory consumed by non-autotuned Ceph daemons are subtracted. When osd_memory_target_autotune is true for all OSDs, the remaining memory is divided by the OSDs. For HCI deployments the mgr/cephadm/autotune_memory_target_ratio can be set to 0.2 so that more memory is available for the Compute service. Adjust as needed to ensure each OSD has at least 5 GB of memory. Additional resources Section 11.8.6, "Deploying the HCI-DPDK overcloud" 11.8.3. Example DPDK configuration file parameter_defaults: ComputeHCIParameters: KernelArgs: "default_hugepagesz=1GB hugepagesz=1G hugepages=240 intel_iommu=on iommu=pt # 1 isolcpus=2,46,3,47,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87" TunedProfileName: "cpu-partitioning" IsolCpusList: # 2 "2,46,3,47,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,49,51, 53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87" VhostuserSocketGroup: hugetlbfs OvsDpdkSocketMemory: "4096,4096" # 3 OvsDpdkMemoryChannels: "4" OvsPmdCoreList: "2,46,3,47" # 4 1 KernelArgs: To calculate hugepages , subtract the value of the NovaReservedHostMemory parameter from total memory. 2 IsolCpusList: Assign a set of CPU cores that you want to isolate from the host processes with this parameter. Add the value of the OvsPmdCoreList parameter to the value of the NovaComputeCpuDedicatedSet parameter to calculate the value for the IsolCpusList parameter. 3 OvsDpdkSocketMemory: Specify the amount of memory in MB to pre-allocate from the hugepage pool per NUMA node with the OvsDpdkSocketMemory parameter. For more information about calculating OVS-DPDK parameters, see OVS-DPDK parameters . 4 OvsPmdCoreList: Specify the CPU cores that are used for the DPDK poll mode drivers (PMD) with this parameter. Choose CPU cores that are associated with the local NUMA nodes of the DPDK interfaces. Allocate 2 HT sibling threads for each NUMA node to calculate the value for the OvsPmdCoreList parameter. 11.8.4. Example nova configuration file parameter_defaults: ComputeHCIExtraConfig: nova::cpu_allocation_ratio: 16 # 2 NovaReservedHugePages: # 1 - node:0,size:1GB,count:4 - node:1,size:1GB,count:4 NovaReservedHostMemory: 123904 # 2 # All left over cpus from NUMA-1 NovaComputeCpuDedicatedSet: # 3 ['5','7','9','11','13','15','17','19','21','23','25','27','29','31','33','35','37','39','41','43','49','51','| 53','55','57','59','61','63','65','67','69','71','73','75','77','79','81','83','85','87 1 NovaReservedHugePages: Pre-allocate memory in MB from the hugepage pool with the NovaReservedHugePages parameter. It is the same memory total as the value for the OvsDpdkSocketMemory parameter. 2 NovaReservedHostMemory: Reserve memory in MB for tasks on the host with the NovaReservedHostMemory parameter. Use the following guidelines to calculate the amount of memory that you must reserve: 5 GB for each OSD. 0.5 GB overhead for each VM. 4GB for general host processing. Ensure that you allocate sufficient memory to prevent potential performance degradation caused by cross-NUMA OSD operation. 3 NovaComputeCpuDedicatedSet: List the CPUs not found in OvsPmdCoreList , or Ceph_osd_docker_cpuset_cpus with the NovaComputeCpuDedicatedSet parameter. The CPUs must be in the same NUMA node as the DPDK NICs. 11.8.5. Recommended configuration for HCI-DPDK deployments Table 11.1. Tunable parameters for HCI deployments Block Device Type OSDs, Memory, vCPUs per device NVMe Memory : 5GB per OSD OSDs per device: 4 vCPUs per device: 3 SSD Memory : 5GB per OSD OSDs per device: 1 vCPUs per device: 4 HDD Memory : 5GB per OSD OSDs per device: 1 vCPUs per device: 1 Use the same NUMA node for the following functions: Disk controller Storage networks Storage CPU and memory Allocate another NUMA node for the following functions of the DPDK provider network: NIC PMD CPUs Socket memory 11.8.6. Deploying the HCI-DPDK overcloud Follow these steps to deploy a hyperconverged overcloud that uses DPDK. Prerequisites Red Hat OpenStack Platform (RHOSP) 17.1 or later. The latest version of Red Hat Ceph Storage 6.1. Procedure Generate the roles_data.yaml file for the Controller and the ComputeHCIOvsDpdk roles. Create and configure a new flavor with the openstack flavor create and openstack flavor set commands. Deploy Ceph by using RHOSP director and the Ceph configuration file. Example Deploy the overcloud with the custom roles_data.yaml file that you generated. Example Important This example deploys Ceph RBD (block storage) without Ceph RGW (object storage). To include RGW in the deployment, use cephadm.yaml instead of cephadm-rbd-only.yaml . Additional resources Composable services and custom roles in Customizing your Red Hat OpenStack Platform deployment Section 11.8.2, "Example Ceph configuration file" Configuring the Red Hat Ceph Storage cluster in Deploying Red Hat Ceph Storage and Red Hat OpenStack Platform together with director . 11.9. Synchronize your compute nodes with Timemaster Important This feature is available in this release as a Technology Preview , and therefore is not fully supported by Red Hat. It should only be used for testing, and should not be deployed in a production environment. For more information about Technology Preview features, see Scope of Coverage Details . Use time protocols to maintain a consistent timestamp between systems. Red Hat OpenStack Platform (RHOSP) includes support for Precision Time Protocol (PTP) and Network Time Protocol (NTP). You can use NTP to synchronize clocks in your network in the millisecond range, and you can use PTP to synchronize clocks to a higher, sub-microsecond, accuracy. An example use case for PTP is a virtual radio access network (vRAN) that contains multiple antennas which provide higher throughput with more risk of interference. Timemaster is a program that uses ptp4l and phc2sys in combination with chronyd or ntpd to synchronize the system clock to NTP and PTP time sources. The phc2sys and ptp4l programs use Shared Memory Driver (SHM) reference clocks to send PTP time to chronyd or ntpd , which compares the time sources to synchronize the system clock. The implementation of the PTPv2 protocol in the Red Hat Enterprise Linux (RHEL) kernel is linuxptp . The linuxptp package includes the ptp4l program for PTP boundary clock and ordinary clock synchronization, and the phc2sys program for hardware time stamping. For more information about PTP, see: Introduction to PTP in the Red Hat Enterprise Linux System Administrator's Guide . Chrony is an implementation of the NTP protocol. The two main components of Chrony are chronyd , which is the Chrony daemon, and chronyc which is the Chrony command line interface. For more information about Chrony, see Using the Chrony suite to configure NTP in the Red Hat Enterprise Linux System Administrator's Guide . The following image is an overview of a packet journey in a PTP configuration. Figure 11.1. PTP packet journey overview The following image is a overview of a packet journey in the Compute node in a PTP configuration. Figure 11.2. PTP packet journey detail 11.9.1. Timemaster hardware requirements Ensure that you have the following hardware functionality: You have configured the NICs with hardware timestamping capability. You have configured the switch to allow multicast packets. You have configured the switch to also function as a boundary or transparent clock. You can verify the hardware timestamping with the command ethtool -T <device> . You can use either a transparent or boundary clock switch for better accuracy and less latency. You can use an uplink switch for the boundary clock. The boundary clock switch uses an 8-bit correctionField on the PTPv2 header to correct delay variations, and ensure greater accuracy on the end clock. In a transparent clock switch, the end clock calculates the delay variation, not the correctionField . 11.9.2. Configuring Timemaster The default Red Hat OpenStack Platform (RHOSP) service for time synchronization in overcloud nodes is OS::TripleO::Services::Timesync . Known limitations Enable NTP for virtualized controllers, and enable PTP for bare metal nodes. Virtio interfaces are incompatible, because ptp4l requires a compatible PTP device. Use a physical function (PF) for a VM with SR-IOV. A virtual function (VF) does not expose the registers necessary for PTP, and a VM uses kvm_ptp to calculate time. High Availability (HA) interfaces with multiple sources and multiple network paths are incompatible. Procedure To enable the Timemaster service on the nodes that belong to a role that you choose, replace the line that contains OS::TripleO::Services::Timesync with the line OS::TripleO::Services::TimeMaster in the roles_data.yaml file section for that role. #- OS::TripleO::Services::Timesync - OS::TripleO::Services::TimeMaster Configure the heat parameters for the compute role that you use. #Example ComputeSriovParameters: PTPInterfaces: '0:eno1,1:eno2' PTPMessageTransport: 'UDPv4' Include the new environment file in the openstack overcloud deploy command with any other environment files that are relevant to your environment: Replace <existing_overcloud_environment_files> with the list of environment files that are part of your existing deployment. Replace <new_environment_file> with the new environment file or files that you want to include in the overcloud deployment process. Verification Use the command phc_ctl , installed with ptp4linux , to query the NIC hardware clock. 11.9.3. Example timemaster configuration 11.9.4. Example timemaster operation

Commands:
parameter_defaults: ComputeOvsDpdkParameters: NovaComputeCpuSharedSet: "0-1,16-17" NovaComputeCpuDedicatedSet: "2-15,18-31"
openstack flavor create --ram <size_mb> --disk <size_gb> --vcpus <vcpus> <flavor>
openstack flavor set <flavor> --property hw:emulator_threads_policy=share
openstack server show <instance_id>
ssh tripleo-admin@compute-1 [compute-1]USD sudo virsh dumpxml instance-00001 | grep `'emulatorpin cpuset'`
parameter_defaults: NeutronPhysicalDevMappings: - sriov2:p5p2
parameter_defaults: NeutronPhysicalDevMappings: - sriov2:p5p2 NovaPCIPassthrough: - vendor_id: "8086" product_id: "1572" physical_network: "sriov2" trusted: "true"
openstack network create trusted_vf_network --provider-network-type vlan --provider-segment 111 --provider-physical-network sriov2 --external --disable-port-security
openstack subnet create --network trusted_vf_network --ip-version 4 --subnet-range 192.168.111.0/24 --no-dhcp subnet-trusted_vf_network
openstack port create --network sriov111 --vnic-type direct --binding-profile trusted=true sriov111_port_trusted
openstack server create --image rhel --flavor dpdk --network internal --port trusted_vf_network_port_trusted --config-drive True --wait rhel-dpdk-sriov_trusted
ip link 7: p5p2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether b4:96:91:1c:40:fa brd ff:ff:ff:ff:ff:ff vf 6 MAC fa:16:3e:b8:91:c2, vlan 111, spoof checking off, link-state auto, trust on, query_rss off vf 7 MAC fa:16:3e:84:cf:c8, vlan 111, spoof checking off, link-state auto, trust off, query_rss off
source ~/stackrc
parameter_defaults: NovaLibvirtRxQueueSize: 1024 NovaLibvirtTxQueueSize: 1024
openstack overcloud deploy --templates -e <other_environment_files> -e /home/stack/my_tx-rx_queue_sizes.yaml
egrep "^[rt]x_queue_size" /var/lib/config-data/puppet-generated/ nova_libvirt/etc/nova/nova.conf
rx_queue_size=1024 tx_queue_size=1024
openstack server show testvm-queue-sizes -c OS-EXT-SRV-ATTR: hypervisor_hostname -c OS-EXT-SRV-ATTR:instance_name
+-------------------------------------+------------------------------------+ | Field | Value | +-------------------------------------+------------------------------------+ | OS-EXT-SRV-ATTR:hypervisor_hostname | overcloud-novacompute-1.sales | | OS-EXT-SRV-ATTR:instance_name | instance-00000059 | +-------------------------------------+------------------------------------+
podman exec nova_libvirt virsh dumpxml instance-00000059
<interface type='vhostuser'> <mac address='56:48:4f:4d:5e:6f'/> <source type='unix' path='/tmp/vhost-user1' mode='server'/> <model type='virtio'/> <driver name='vhost' rx_queue_size='1024' tx_queue_size='1024' /> <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/> </interface>
parameter_defaults: NeutronPhysnetNUMANodesMapping: {<physnet_name>: [<NUMA_NODE>]} NeutronTunnelNUMANodes: <NUMA_NODE>,<NUMA_NODE>
parameter_defaults: NeutronBridgeMappings: - tenant:br-link0 NeutronPhysnetNUMANodesMapping: {tenant: [1], mgmt: [0,1]} NeutronTunnelNUMANodes: 0
ethtool -i eno2 bus-info: 0000:18:00.1 cat /sys/devices/pci0000:16/0000:16:02.0/0000:18:00.1/numa_node 0
NeutronBridgeMappings: 'physnet1:br-physnet1' NeutronPhysnetNUMANodesMapping: {physnet1: [0] } - type: ovs_user_bridge name: br-physnet1 mtu: 9000 members: - type: ovs_dpdk_port name: dpdk2 members: - type: interface name: eno2
[neutron_physnet_tenant] numa_nodes=1 [neutron_tunnel] numa_nodes=1
lscpu
[osd] osd_numa_node = 0 # 1 osd_memory_target_autotune = true # 2 [mgr] mgr/cephadm/autotune_memory_target_ratio = 0.2 # 3
parameter_defaults: ComputeHCIParameters: KernelArgs: "default_hugepagesz=1GB hugepagesz=1G hugepages=240 intel_iommu=on iommu=pt # 1 isolcpus=2,46,3,47,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87" TunedProfileName: "cpu-partitioning" IsolCpusList: # 2 "2,46,3,47,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,49,51, 53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87" VhostuserSocketGroup: hugetlbfs OvsDpdkSocketMemory: "4096,4096" # 3 OvsDpdkMemoryChannels: "4" OvsPmdCoreList: "2,46,3,47" # 4
parameter_defaults: ComputeHCIExtraConfig: nova::cpu_allocation_ratio: 16 # 2 NovaReservedHugePages: # 1 - node:0,size:1GB,count:4 - node:1,size:1GB,count:4 NovaReservedHostMemory: 123904 # 2 # All left over cpus from NUMA-1 NovaComputeCpuDedicatedSet: # 3 ['5','7','9','11','13','15','17','19','21','23','25','27','29','31','33','35','37','39','41','43','49','51','| 53','55','57','59','61','63','65','67','69','71','73','75','77','79','81','83','85','87
openstack overcloud roles generate -o ~/<templates>/roles_data.yaml Controller ComputeHCIOvsDpdk
openstack overcloud ceph deploy --config initial-ceph.conf
openstack overcloud deploy --templates --timeout 360 -r ~/<templates>/roles_data.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/ cephadm/cephadm-rbd-only.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/services-docker/neutron-ovs-dpdk.yaml -e ~/<templates>/<custom environment file>
ethtool -T p5p1 Time stamping parameters for p5p1: Capabilities: hardware-transmit (SOF_TIMESTAMPING_TX_HARDWARE) software-transmit (SOF_TIMESTAMPING_TX_SOFTWARE) hardware-receive (SOF_TIMESTAMPING_RX_HARDWARE) software-receive (SOF_TIMESTAMPING_RX_SOFTWARE) software-system-clock (SOF_TIMESTAMPING_SOFTWARE) hardware-raw-clock (SOF_TIMESTAMPING_RAW_HARDWARE) PTP Hardware Clock: 6 Hardware Transmit Timestamp Modes: off (HWTSTAMP_TX_OFF) on (HWTSTAMP_TX_ON) Hardware Receive Filter Modes: none (HWTSTAMP_FILTER_NONE) ptpv1-l4-sync (HWTSTAMP_FILTER_PTP_V1_L4_SYNC) ptpv1-l4-delay-req (HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) ptpv2-event (HWTSTAMP_FILTER_PTP_V2_EVENT)
#- OS::TripleO::Services::Timesync - OS::TripleO::Services::TimeMaster
#Example ComputeSriovParameters: PTPInterfaces: '0:eno1,1:eno2' PTPMessageTransport: 'UDPv4'
openstack overcloud deploy --templates ... -e <existing_overcloud_environment_files> -e <new_environment_file1> -e <new_environment_file2> ...
phc_ctl <clock_name> get phc_ctl <clock_name> cmp
cat /etc/timemaster.conf Configuration file for timemaster #[ntp_server ntp-server.local] #minpoll 4 #maxpoll 4 [ptp_domain 0] interfaces eno1 #ptp4l_setting network_transport l2 #delay 10e-6 [timemaster] ntp_program chronyd include /etc/chrony.conf server clock.redhat.com iburst minpoll 6 maxpoll 10 [ntp.conf] includefile /etc/ntp.conf includefile /etc/ptp4l.conf network_transport L2 [chronyd] path /usr/sbin/chronyd [ntpd] path /usr/sbin/ntpd options -u ntp:ntp -g [phc2sys] path /usr/sbin/phc2sys #options -w [ptp4l] path /usr/sbin/ptp4l #options -2 -i eno1
systemctl status timemaster ● timemaster.service - Synchronize system clock to NTP and PTP time sources Loaded: loaded (/usr/lib/systemd/system/timemaster.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2020-08-25 19:10:18 UTC; 2min 6s ago Main PID: 2573 (timemaster) Tasks: 6 (limit: 357097) Memory: 5.1M CGroup: /system.slice/timemaster.service ├─2573 /usr/sbin/timemaster -f /etc/timemaster.conf ├─2577 /usr/sbin/chronyd -n -f /var/run/timemaster/chrony.conf ├─2582 /usr/sbin/ptp4l -l 5 -f /var/run/timemaster/ptp4l.0.conf -H -i eno1 ├─2583 /usr/sbin/phc2sys -l 5 -a -r -R 1.00 -z /var/run/timemaster/ptp4l.0.socket -t [0:eno1] -n 0 -E ntpshm -M 0 ├─2587 /usr/sbin/ptp4l -l 5 -f /var/run/timemaster/ptp4l.1.conf -H -i eno2 └─2588 /usr/sbin/phc2sys -l 5 -a -r -R 1.00 -z /var/run/timemaster/ptp4l.1.socket -t [0:eno2] -n 0 -E ntpshm -M 1 Aug 25 19:11:53 computesriov-0 ptp4l[2587]: [152.562] [0:eno2] selected local clock e4434b.fffe.4a0c24 as best master