Openstack numa awareness. http://creativecommons.

Openstack numa awareness With this setup, virtual machine instances are pinned to dedicated CPU cores, which enables smarter scheduling and NUMA_NODE: the NUMA node, such as node0, to which you're allocating hugepages. Enhanced Platform Awareness (EPA) is a set of contributions from Intel Corporation and others to OpenStack. vSwitches such as Open vSwitch (with kernel or DPDK datapath), Lagopus, or Contrail DPDK vRouter all have some level of NUMA affinity. Now we can focus on these standard filter classes in some detail. These enhancements allow OpenStack Compute (Nova) to have greater knowledge of compute host layout and as a result make smarter scheduling and placement decisions when launching The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available to instances. 2) based NFV platform with appropriate EPA parameters (CPU pinning, NUMA awareness, huge page allocation, ) requires a lot of manual steps OSP-d will properly configures the compute nodes in order to enforce resources partitioning and fine tuning to Testing instance boot with no NUMA topology requested¶ For the sake of backwards compatibility, if the NUMA filter is enabled, but the flavor/image does not have any NUMA settings requested, it should be assumed that the guest will have a single NUMA node. As an example, nova. OpenStack Apmec supports TOSCA MEAD templates that allow specifying requirements for a MEA that leverages features of a compute node such as NUMA topology, SR-IOV, Huge pages and CPU pinning. The guest should be locked to a single host NUMA node too. N0 and N1. NUMA-aware scheduler. The Enhanced Platform Awareness (EPA) features deliver deterministic performance improvements through CPU Pinning, Huge pages, Non-Uniform Memory Access (NUMA) affinity, and network adaptors (NICs) that support SR-IOV and OVS-DPDK. /startvm. In I/O (PCIe) based NUMA scheduling, nova tackled the problem of NUMA affinity for PCIe devices when using the libvirt driver. As an operator, I would like the ability to live migrate instances with NUMA topology. OpenStack Tacker supports TOSCA VNFD templates that allow specifying requirements for a VNF that leverages features of a compute node such as NUMA topology, SR-IOV, Huge pages and CPU pinning. In OpenStack, SMP CPUs are known as cores, NUMA cells or nodes are known as sockets, and SMT CPUs are known as threads. org/licenses/by/3. Node topology exporter In OpenStack, SMP CPUs are known as cores, NUMA cells or nodes are known as sockets, and SMT CPUs are known as threads. He recently started to work on the edge computing features on top of Kubernetes, OpenStack Tacker supports TOSCA VNFD templates that allow specifying requirements for a VNF that leverages features of a compute node such as NUMA topology, SR-IOV, Huge pages and CPU pinning. provides NUMA topology awareness to the guest, it does not provide any awareness of another technology that can impact performance: Simultaneous Multi-Threading (SMT), or Intel® Hyper-Threading Technology on Intel® platforms. OpenStack Networking NFV features such as IPv6, SR-IOV, and integration with DPDK-accelerated Open vSwitch. With this setup, virtual machine instances are pinned to dedicated CPU cores, which enables smarter scheduling and This chapter concerns NUMA topology awareness and the configuration of an OpenStack environment on systems supporting this technology. Huge Pages Before we go any further into discussing what Huge Pages are and what is the importance of enabling them, let us talk a bit about how Linux handles system memory. In this talk, we show how much the performance changes if those physical resources are well tuned for optimization. 0=0,1 Enhanced Placement Awareness Usage Guide¶ Overview¶. NUMA-aware VMs are scheduled on NUMA nodes. 0/legalcode Enhanced Placement Awareness 8. Each NUMA node would be then a child Resource This chapter describes how to use NUMA topology awareness to configure an OpenStack environment on systems with a NUMA architecture. 1-10 and DPDK 16. The procedures detailed in this chapter show you how to pin virtual machines (VMs) to This chapter concerns NUMA topology awareness and the configuration of an OpenStack environment on systems supporting this technology. while improving the container performance compared to . 8 SR-IOV & OVS-DPDK Full Support Today, configuring SR-IOV or OVS-DPDK (OVS 2. OpenStack Compute uses libvirt to tune instances to take advantage of NUMA topologies. Important: This feature is offered in VMware Integrated OpenStack Carrier Edition only. N1 and N2. Block Storage service is main storage service relevant to NFV. Red Hat OpenStack Platform - Supports IT and NFV workloads. The NUMA-aware secondary scheduler receives information about the available NUMA zones from the NodeResourceTopology API and schedules high-performance workloads on a node where it can be optimally processed. With this setup, virtual machine instances are pinned to dedicated CPU cores, which enables smarter scheduling and OpenStack Tacker supports TOSCA VNFD templates that allow specifying requirements for a VNF that leverages features of a compute node such as NUMA topology, SR-IOV, Huge pages and CPU pinning. In OpenStack Adrian set the architectural direction for the Intel contributors on areas such as PCIe passthrough, SR-IOV, Enhanced Platform Awareness for NUMA, Huge Pages, CPU Remaining with the same diagram, if the instance has hw_numa_nodes=2 instead, it can be pinned to the following, as they all have at least one guest NUMA node pinned to the PCI device’s socket. For example, EPA can Enhanced Placement Awareness Usage Guide¶ Overview¶. I am able to achieve 150kpps with queue=8 and my goal is to do 300kpps because some of voice application using 300kps. This blueprint optimises Openstack guest placement by ensuring that a guest bound to a PCI device is scheduled to run on a NUMA node that is associated with the guests pCPU and memory allocation. Requirements. HUGEPAGE_SIZE: the size of the hugepages in kibibytes, 2048 (2 MiB) or1048576 (1 GiB). This is why we have always recommended you set hw:numa_nodes to the number of numa nodes on the host if you can. The libvirt driver boot process looks at the NUMA topology field of both the instance and the host it is being booted on, and uses that information to generate an The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available to instances. When running a guest operating system in a virtual machine (VM) there are two NUMA topologies involved: the NUMA topology of the Maintenance¶. In the first topic, we focus on DPDK performance. Resource Provider names for NUMA nodes shall follow a convention of nodename_NUMA# where nodename would be the hypervisor hostname (given by the virt driver) and where NUMA# would literally be a string made of ‘NUMA’ postfixed by the NUMA cell ID which is provided by the virt driver. For more information, Introduction One of the key concerns when it comes to NFV is around performance, and that the network function you are virtualizing can deliver that of its hardware counterpart. With modern x86 servers which have NUMA The OpenStack Placement service was designed to provide tracking of quantitative resources via resource class inventories and qualitative characteristics via traits. EPA features provide OpenStack a better view of the underlying hardware and enable OpenStack to filter platforms with specific capabilities that match the workload requirements, prior to launching a virtual machine (VM). The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available to instances. By default, the OpenStack scheduler (a component responsible for choosing a host to run a new virtual machine on) is optimized to run as many virtual machines on a single host as possible. . For example, a quad-socket, eight core system with Hyper-Threading would have four sockets, eight cores per socket In OpenStack, SMP CPUs are known as cores, NUMA cells or nodes are known as sockets, and SMT CPUs are known as threads. The configuration guide “Enabling Enhanced Platform Awareness for Superior Packet Processing in OpenStack*” is available at this Intel Network Builders link. My openstack compute host with 32 core so i have created 30 vCPU core vm on it which has all NUMA awareness, when i am running Erlang application benchmark on this VM getting worst performance but then i create new VM with 16 vCPU core (In this case my all VM cpu pinned with Numa-0 node) and in this case benchmark result was great. When an instance with NUMA characteristics is live-migrated, those The OpenStack Kilo release, extending upon efforts that commenced during the Juno cycle, includes a number of key enhancements aimed at improving guest performance. CPU Thread Pinning The thread pinning feature provides SMT-awareness, in addition to the existing NUMA topology-awareness. This spec describes how Nova can utilize Placement to track generic PCI devices without going into the details of the NUMA awareness of such devices. Advanced networking topics like OVS, DPDK & SRIOV. Quotas: Managing project quotas in nova. He specialises in open source software such as OpenStack, Linux, Open vSwitch, KVM, QEMU and libvirt. The instance cannot be pinned to N2 and N3, as they’re both on a different socket from the PCI device. However, the use of software switching solutions complicates matters compared to switching that is done in hardware. For example, a quad-socket, eight core system with Hyper-Threading would have four sockets, eight cores per socket In this instance, there are 0 persistent huge pages (HugePages_Total) and 0 transparent huge pages (AnonHugePages) allocated. NUMA awareness allows the operating system of the instance to intelligently schedule the workloads that it runs and minimize cross-node memory bandwidth. non-uniform memory access (NUMA) topology awareness, CPU affinity in VMs, and huge pages, which aim to improve overall OpenStack VM performance. NUMA AWARENESS Modern HW increasingly providing NUMA Benefits of IaaS controller being NUMA aware: Memory bandwith & access latency REQUESTING NUMA FOR AN OPENSTACK VM Set on the flavor (admin only) Default - no NUMA awareness Simple case: hw:numa_nodes=2 Specifying more details: hw:numa_cpu. 0/legalcode Enhanced Placement Awareness Apmec capabilities: mec_compute: properties: mem_page_size: [small, large, any, custom] cpu_allocation: cpu_affinity: [shared, dedicated] thread_allocation: [avoid, separate, isolate, prefer] socket_count: any integer core_count: any integer thread_count: any integer numa_node_count: any integer numa_nodes: node0: [id: >= 0, vcpus: [host CPU numbers], This work is licensed under a Creative Commons Attribution 3. NUMA RP¶. the excpetion to that is for workloads that dont support numa awareness in which case you shoudl only deviate form this advice if you mesusre a perfromace degreadation. Upgrades: How nova is designed to be upgraded for minimal service impact, and the order you should do them in. Huge pages can be allocated at boot time or run time. The OpenStack Placement service was designed to provide tracking of quantitative resources via resource class inventories and qualitative characteristics via traits. launchpad. Flavors: What flavors are and why they are used. The Enhanced Platform Awareness (EPA) features deliver deterministic performance improvements through CPU Pinning, Huge pages, Non-Uniform Memory Access (NUMA) affinity and network adaptors (NICs) that support SR-IOV and OVS-DPDK. The OpenStack operator or administrator must understand the NUMA topology of the host systems to configure CPU pinning and NUMA settings correctly. NUMA awareness when flavor is configured with hw:numa_nodes=N NUMA RP¶. The procedures detailed in this chapter show you how to pin virtual machines (VMs) to dedicated CPU cores, which improves scheduling and VM performance. Details on this filter are provided in Compute schedulers. CPU pining, is something that has to be configured as part of Nova and instances flavors, so we will leave one sockets for the OpenStack instances and 1 socket for the Ceph storage daemons. 0/legalcode Enhanced Placement Awareness This work is licensed under a Creative Commons Attribution 3. Additional information about NUMA/CPU pinning support in OpenStack . Proposed Change¶ In Nova several features depend of the internal NUMA topology object. I cover everything from scratch however, it will be good to have basic knowledge of Linux & The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available to instances. N0 and N2. DPDK is emerging solution for NFV, but there are still difficulties to use it in OpenStack. NUMATopologyFilter - filters hosts based on the NUMA topology requested by the instance, if any. OpenStack and | Find, read and cite all the research you need on ResearchGate. VMware Integrated OpenStack supports non-uniform memory access (NUMA)-aware placement of OpenStack instances on the underlying vSphere environment. Configure a VM to use the NUMA node. Enabling NUMA/CPU pinning requires: Collect information about NUMA Compute NFV features such as vCPU Pinning, Large Pages, and NUMA awareness. To create a You can configure an OpenStack environment to use NUMA topology awareness on systems with a NUMA architecture. For example, a quad-socket, eight core system with Hyper-Threading would have four sockets, eight cores per socket Note. 6. In OpenStack, when booting a process, the hypervisor driver looks at the NUMA topology field of both the instance and the host it is being booted on, and uses that information to generate an appropriate configuration. With this setup, virtual machine instances are pinned to dedicated CPU cores, which enables NUMA-aware live migration¶ https://blueprints. This can occur because they use one or more physical network The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available This chapter describes how to use NUMA topology awareness to configure an OpenStack environment on systems with a NUMA architecture. NUMA AWARENESS. This work is licensed under a Creative Commons Attribution 3. CPU pinning can be achieved without a guest NUMA topology, but the two concepts are unfortunately tightly coupled in Nova and instance pinning is not possible Here we can see that NUMA topology contains 2 NUMA nodes with 12 CPUs each. N0 and N3. conf could contain the following scheduler-related settings:--scheduler. I/O based NUMA scheduling will add support for intelligent NUMA node placement for guests that have been assigned a host PCI device, avoiding unnecessary memory transactions Problem description ¶ Currently it is common for virtualisation host platforms to exhibit multi NUMA node characteristics. NUMA awareness & Hugepages. Once you are running nova, the following information is extremely useful. net/nova/+spec/numa-aware-live-migration. Absolutely nothing. In all cases where NUMA awareness is used, the NUMATopologyFilter filter must be enabled. NUMA awareness is also crucial to your HCI setup, ideally if you two sockets on your machine, each will get its own NUMA zone. The libvirt driver boot process looks at the NUMA topology field of both the instance and the host it is being booted on, and uses that information to generate an OpenStack Tacker supports TOSCA VNFD templates that allow specifying requirements for a VNF that leverages features of a compute node such as NUMA topology, SR-IOV, Huge pages and CPU pinning. With this setup, virtual machine instances are pinned to dedicated CPU cores, which enables smarter scheduling and In I/O (PCIe) based NUMA scheduling, nova tackled the problem of NUMA affinity for PCIe devices when using the libvirt driver. OpenStack Instance Configuration Guide. In all cases where NUMA awareness is used, the I/O (PCIe) based NUMA scheduling The default guest placement policy is to use any available physical CPU (pCPU) from any NUMA node. This allows for Enhanced Platform Awareness(EPA) placement of a VNF that has high performance and low latency requirements. Update on my last email. However, with all the vendors Enhanced Placement Awareness Usage Guide¶ Overview¶. Prior to the experience with Kubernetes, he developed features to support VxLAN/SR with FD. N1 and N3. Each NUMA node would be then a child Resource OpenStack Tacker supports TOSCA VNFD templates that allow specifying requirements for a VNF that leverages features of a compute node such as NUMA topology, SR-IOV, Huge pages and CPU pinning. [root@compute1 ~]# cat . In the following paragraphs the term NUMA is incorrectly used to signify any guest characteristic that is expressed in the InstanceNUMATopology object, for example CPU pinning and hugepages. This is because DPDK should be aware of physical computing resources, such as NIC ports, CPU cores, and NUMA nodes. This was done by utilizing the NUMA information for these PCIe devices that was provided by libvirt. He is part of the Cisco Virtualized Infrastructure Manager (CVIM) team, and actively working on multiple fronts of the product including Advanced networking, OpenStack core, Kubernetes edge deployments, and Performance and scalability tuning. For example, a quad-socket, eight core system with Hyper-Threading would have four sockets, eight cores per socket OVS-DPDK and NUMA awareness in Red Hat OpenStack Platform do not seem to be working with OVS 2. It provides carrier grade storage requirement with Ceph as a back-end. Admin Guide: A collection of guides for administrating nova. Enhanced Placement Awareness Usage Guide¶ Overview¶. Before we dive into the different packet optimization methods, let’s first take a look at some of the issues that can cause performance degradation, and in turn prevent a VNF from reaching the low latency 10Gb speeds required by today’s networks. Adrian is also active in standards initiatives such as ETSI-NFV. Yichen is a technical leader at Cisco Systems. Each NUMA node would be then a child Resource This chapter concerns NUMA topology awareness and the configuration of an OpenStack environment on systems supporting this technology. As indicated in the problem description an operator may ask the desir of migrating such instances. 1 This can be reproduced this with latest OVS 2. With this setup, virtual machine instances are pinned to dedicated CPU cores, which enables smarter scheduling and NUMA RP¶. In nova, NUMA topology contains group of related properties, like the amount of memory managed by a NUMA cell, the list of memory page sizes supported on the NUMA cell,the vCPU thread to logical host processor mapping, and the cpu thread policy. CPU Pinning and NUMA Awareness in OpenStack. sh #!/bin/bash -x export VM_NAME0=vhost-vm0 export I/O Optimization. io VPP on OpenStack, NUMA awareness/CPU pinning/isolation for VNF performance improvements, and also worked closely with OPNFV and Opendev community as the key contributor for developing NFVbench, the specialized benchmarking tool for NFVi cloud. Huge Pages Before we go any further into discussing what The NUMA topology and CPU pinning features in OpenStack provide high-level control over how instances run on hypervisor CPUs and the topology of virtual CPUs available to instances. http://creativecommons. or ask for help in the #openstack-nova IRC channel. This allows for Enhanced Platform Awareness(EPA) placement of a MEA that has high performance and low latency requirements. 0 Unported License. and NUMA awareness to achieve better load balancing . Huge pages require a contiguous area of memory - memory that gets increasingly fragmented the long a host is running. driver = nova. with the default behavior you will saturate once numa node before The NodeResourceTopology API describes the available NUMA zone resources in each compute node. For example, a quad-socket, eight core system with Hyper-Threading would have four sockets, eight cores per socket Learn OpenStack and network function virtualization NFV together. 5, DPDK2. 11-4 Verification with a script that is launching qemu-kvm processes and creates the vhostuser ports. Once your cluster nodes are tuned for NUMA, you can create NUMA-aware VMs. Contribute to myllynen/openstack-instance-configuration development by creating an account on GitHub. scheduler. Showing our evaluation result, we describe how the performance changes with tuning parameters of CPU pinning, NUMA awareness, hyperthreading, vhost zero-copy The OpenStack operator or administrator must understand the NUMA topology of the host systems to configure CPU pinning and NUMA settings correctly. This chapter concerns NUMA topology awareness and the configuration of an OpenStack environment on systems supporting this technology. In all cases where NUMA awareness is used, the How we should configure OpenStack to maximize the performance; Points for which OpenStack is still not optimized for the performance . Enhanced Platform Awareness (EPA), including virtual CPU pinning and NUMA awareness ; NSX-managed virtual distributed switch (N-VDS) in enhanced data path mode ; To obtain licenses or additional information, see the VMware Integrated OpenStack product page or contact your VMware sales representative. ivvjzjsv cfpbdfsv nxfj jcb qxqrp ozxsyd rmdemb awdvf rgncoxb cuec