diff options
| author |   swatisharma <swatix.sharma@intel.com> | 2016-08-18 21:06:56 +0530 |
|---|---|---|
| committer | swatisharma <swatix.sharma@intel.com> | 2016-08-19 17:16:30 +0530 |
| commit | 5a56bf69988b7c72e88546eb4659576fb51bfb77 (patch) | |
| tree | f2484c75795c41b596e4671aab33d7edcdb88e42 | |
| parent | 2aa991a490387f3910a7e1bf02de83a7efb28014 (diff) | |
OPNFV KVM4NFV: Documentation
This patch contains the full documentation required for KVM4NFV
project. The documents are organized into the following
sections- user guide, configuration guide, installation guide.
requirement document, design document, release notes and glossary.
Co-Authored-By: Gundarapu Reddy <reddyx.gundarapu@intel.com>
Signed-off-by: Swati Sharma <swatix.sharma@intel.com>
43 files changed, 1768 insertions, 236 deletions
diff --git a/docs/all/environment-setup.rst b/docs/all/environment-setup.rst deleted file mode 100644 index e3814310a..000000000 --- a/docs/all/environment-setup.rst +++ /dev/null @@ -1,151 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 -.. (c) <optionally add copywriters name> - -Low Latency Environment -======================= - -Achieving low latency with the KVM4NFV project requires setting up a special -test environment. This environment includes the BIOS settings, kernel -configuration, kernel parameters and the run-time environment. - -Hardware Environment Description --------------------------------- - -BIOS setup plays an important role in achieving real-time latency. A collection -of relevant settings, used on the platform where the baseline performance data -was collected, is detailed below: - -CPU Features -~~~~~~~~~~~~ - -Some special CPU features like TSC-deadline timer, invariant TSC and Process posted -interrupts, etc, are helpful for latency reduction. - -Below is the CPU information on the baseline test platform. -:: - processor : 35 - vendor_id : GenuineIntel - cpu family : 6 - model : 63 - model name : Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz - stepping : 2 - microcode : 0x2d - cpu MHz : 2294.795 - cache size : 46080 KB - physical id : 1 - siblings : 18 - core id : 27 - cpu cores : 18 - apicid : 118 - initial apicid : 118 - fpu : yes - fpu_exception : yes - cpuid level : 15 - wp : yes - flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge - mca cmov pat pse36 clflush dts acpi mmx fxsr sse - sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm - constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc - aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 - ssse3 fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt - tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm arat epb - pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase - tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc - cqm_occup_llcbugs - bogomips : 4595.54 - clflush size : 64 - cache_alignment : 64 - address sizes : 46 bits physical, 48 bits virtual - power management: - -CPU Topology -~~~~~~~~~~~~ - -NUMA topology is also important for latency reduction. - -Below is the CPU topology on the baseline test platform. -:: - [nfv@otcnfv02 ~]$ lscpu - Architecture: x86_64 - CPU op-mode(s): 32-bit, 64-bit - Byte Order: Little Endian - CPU(s): 36 - On-line CPU(s) list: 0-35 - Thread(s) per core: 1 - Core(s) per socket: 18 - Socket(s): 2 - NUMA node(s): 2 - Vendor ID: GenuineIntel - CPU family: 6 - Model: 63 - Model name: Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz - Stepping: 2 - CPU MHz: 2294.795 - BogoMIPS: 4595.54 - Virtualization: VT-x - L1d cache: 32K - L1i cache: 32K - L2 cache: 256K - L3 cache: 46080K - NUMA node0 CPU(s): 0-17 - NUMA node1 CPU(s): 18-35 - -BIOS Setup -~~~~~~~~~~ - -Careful BIOS setup is important in achieving real time latency. Different -platforms have different BIOS setups, below are the important BIOS settings on -the platform used to collect the baseline performance data. -:: - CPU Power and Performance <Performance> - CPU C-State <Disabled> - C1E Autopromote <Disabled> - Processor C3 <Disabled> - Processor C6 <Disabled> - Select Memory RAS <Maximum Performance> - NUMA Optimized <Enabled> - Cluster-on-Die <Disabled> - Patrol Scrub <Disabled> - Demand Scrub <Disabled> - Correctable Error <10> - Intel(R) Hyper-Threading <Disabled> - Active Processor Cores <All> - Execute Disable Bit <Enabled> - Intel(R) Virtualization Technology <Enabled> - Intel(R) TXT <Disabled> - Enhanced Error Containment Mode <Disabled> - USB Controller <Enabled> - USB 3.0 Controller <Auto> - Legacy USB Support <Disabled> - Port 60/64 Emulation <Disabled> - -Software Environment Setup --------------------------- -Both the host and the guest environment need to be configured properly to -reduce latency variations. Below are some suggested kernel configurations. -The ci/envs/ directory gives detailed implementation on how to setup the -environment. - -Kernel Parameter -~~~~~~~~~~~~~~~~ - -Please check the default kernel configuration in the source code at: -kernel/arch/x86/configs/opnfv.config. - -Below is host kernel boot line example: -:: - isolcpus=11-15,31-35 nohz_full=11-15,31-35 rcu_nocbs=11-15,31-35 iommu=pt intel_iommu=on default_hugepagesz=1G hugepagesz=1G mce=off idle=poll intel_pstate=disable processor.max_cstate=1 pcie_asmp=off tsc=reliable - -Below is guest kernel boot line example -:: - isolcpus=1 nohz_full=1 rcu_nocbs=1 mce=off idle=poll default_hugepagesz=1G hugepagesz=1G - -Please refer to :doc:`tunning` for more explanation. - -Run-time Environment Setup -~~~~~~~~~~~~~~~~~~~~~~~~~~ - -Not only are special kernel parameters needed but a special run-time -environment is also required. Please refer to :doc:`tunning` for more -explanation. diff --git a/docs/all/index.rst b/docs/all/index.rst deleted file mode 100644 index 7f5f7a694..000000000 --- a/docs/all/index.rst +++ /dev/null @@ -1,48 +0,0 @@ -.. This work is licensed under a Creative Commons Attribution 4.0 International License. -.. http://creativecommons.org/licenses/by/4.0 -.. (c) <optionally add copywriters name> - -=============== -KVM4NFV project -=============== - -Welcome to KVM4NFV_ project! - - - -.. _KVM4NFV: https://wiki.opnfv.org/nfv-kvm - -Contents: - -KVM4NFV Project Description -=========================== - -The NFV hypervisors provide crucial functionality in the NFV Infrastructure -(NFVI). The existing hypervisors, however, are not necessarily designed or -targeted to meet the requirements for the NFVI, and we need to make -collaborative efforts toward enabling the NFV features. - -The KVM4NFV project focuses on the KVM hypervisor to enhance it for NFV, by -looking at the following areas - -+ Minimal Interrupt latency variation for data plane VNFs - * Minimal Timing Variation for Timing correctness of real-time VNFs - * Minimal packet latency variation for data-plane VNFs -+ Fast live migration - -While these items require software development and/or specific hardware features -there are also some adjustments that need to be made to system configuration -information, like hardware, BIOS, OS, etc. - -.. toctree:: - :numbered: - :maxdepth: 1 - -Setup Guides -============ -.. toctree:: - :maxdepth: 2 - - environment-setup - tuning - live_migration diff --git a/docs/configurationguide/abstract.rst b/docs/configurationguide/abstract.rst new file mode 100644 index 000000000..a5066c284 --- /dev/null +++ b/docs/configurationguide/abstract.rst @@ -0,0 +1,16 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +======== +Abstract +======== + +This document provides guidance for the configurations available in the +Colorado release of OPNFV. + +The release includes four installer tools leveraging different technologies; +Apex, Compass4nfv, Fuel and JOID, which deploy components of the platform. + +This document also includes the selection of tools and components including +guidelines for how to deploy and configure the platform to an operational +state. diff --git a/docs/configurationguide/configuration.options.render.rst b/docs/configurationguide/configuration.options.render.rst new file mode 100644 index 000000000..93add7755 --- /dev/null +++ b/docs/configurationguide/configuration.options.render.rst @@ -0,0 +1,23 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +====================== +Configuration Options +====================== + +OPNFV provides a variety of virtual infrastructure deployments called scenarios +designed to host virtualised network functions (VNF's). KVM4NFV scenarios +provide specific capabilities and/or components aimed to solve specific +problems for the deployment of VNF's. KVM4NFV scenario includes components +such as OpenStack,KVM etc. which includes different source components or +configurations. + +KVM4NFV Scenarios +=================== + +Each KVM4NFV scenario provides unique features and capabilities, it is +important to understand your target platform capabilities before installing +and configuring. This configuration guide outlines how to install and +configure components in order to enable the features required. + +.. include:: scenariomatrix.rst diff --git a/docs/configurationguide/images/brahmaputrafeaturematrix.jpg b/docs/configurationguide/images/brahmaputrafeaturematrix.jpg Binary files differnew file mode 100644 index 000000000..0d2a12279 --- /dev/null +++ b/docs/configurationguide/images/brahmaputrafeaturematrix.jpg diff --git a/docs/configurationguide/images/brahmaputrascenariomatrix.jpg b/docs/configurationguide/images/brahmaputrascenariomatrix.jpg Binary files differnew file mode 100644 index 000000000..84fc87a76 --- /dev/null +++ b/docs/configurationguide/images/brahmaputrascenariomatrix.jpg diff --git a/docs/configurationguide/images/weather-clear.jpg b/docs/configurationguide/images/weather-clear.jpg Binary files differnew file mode 100644 index 000000000..011ad52e9 --- /dev/null +++ b/docs/configurationguide/images/weather-clear.jpg diff --git a/docs/configurationguide/images/weather-dash.jpg b/docs/configurationguide/images/weather-dash.jpg Binary files differnew file mode 100644 index 000000000..3bf98dd27 --- /dev/null +++ b/docs/configurationguide/images/weather-dash.jpg diff --git a/docs/configurationguide/images/weather-few-clouds.jpg b/docs/configurationguide/images/weather-few-clouds.jpg Binary files differnew file mode 100644 index 000000000..51994ee84 --- /dev/null +++ b/docs/configurationguide/images/weather-few-clouds.jpg diff --git a/docs/configurationguide/images/weather-overcast.jpg b/docs/configurationguide/images/weather-overcast.jpg Binary files differnew file mode 100644 index 000000000..bdc1e0487 --- /dev/null +++ b/docs/configurationguide/images/weather-overcast.jpg diff --git a/docs/configurationguide/index.rst b/docs/configurationguide/index.rst new file mode 100644 index 000000000..6ad3b282c --- /dev/null +++ b/docs/configurationguide/index.rst @@ -0,0 +1,16 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +************************* +OPNFV Configuration Guide +************************* +Colorado 1.0 +------------ + +.. toctree:: + :maxdepth: 2 + + ./abstract.rst + ./configuration.options.render.rst + ./low-latency.feature.configuration.description.rst + ./os-nosdn-kvm-ha.description.rst diff --git a/docs/configurationguide/low-latency.feature.configuration.description.rst b/docs/configurationguide/low-latency.feature.configuration.description.rst new file mode 100644 index 000000000..bb2bbd1ba --- /dev/null +++ b/docs/configurationguide/low-latency.feature.configuration.description.rst @@ -0,0 +1,93 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +Introduction +============ + +In KVM4NFV project, we focus on the KVM hypervisor to enhance it for NFV, by +looking at the following areas initially + +* Minimal Interrupt latency variation for data plane VNFs: + * Minimal Timing Variation for Timing correctness of real-time VNFs + * Minimal packet latency variation for data-plane VNFs +* Inter-VM communication, +* Fast live migration + +Configuration of Cyclictest +=========================== + +Cyclictest measures Latency of response to a stimulus. Achieving low latency +with the KVM4NFV project requires setting up a special test environment. +This environment includes the BIOS settings, kernel configuration, kernel +parameters and the run-time environment. + +* For more information regarding the test environment, please visit + https://wiki.opnfv.org/display/kvm/KVM4NFV+Test++Environment + https://wiki.opnfv.org/display/kvm/Nfv-kvm-tuning + +Pre-configuration activities +---------------------------- + +Intel POD1 is currently used as OPNFV-KVM4NFV test environment. The latest +build packages are downloaded onto Intel Pod1-jump server from artifact +repository. Yardstick running in a ubuntu docker container on Intel Pod1-jump +server will trigger the cyclictest. + +Running cyclictest through Yardstick will Configure the host(Pod1-node1), the +guest, executes cyclictest on the guest. + +The following scripts are used for configuring host and guest to create a +special test environment and achieve low latency. + +**host-setup0.sh**: On running this script will install latest kernel rpm +on host and will make necessary changes as following to create special test +environment + + * Isolates CPUs from the general scheduler + * Stops timer ticks on isolated CPUs whenever possible + * Stops RCU callbacks on isolated CPUs + * Enables intel iommu driver and disables DMA translation for devices + * Sets HugeTLB pages to 1GB + * Disables machine check + * Disables clocksource verification at runtime + +**host-setup1.sh**: On running this script will make following test +environment changes + + * Disabling watchdogs to reduce overhead + * Disabling RT throttling + * Reroute interrupts bound to isolated CPUs to CPU 0 + * Change the iptable so that we can ssh to the guest remotely + +**host-run-qemu.sh**: On running this script will launch a guest vm on host. + Note: download guest disk image from artifactory + +**guest-setup0.sh**: On running this scrcipt on guest vm will install the +latest build kernel rpm, cyclictest and makes following configuration on +guest vm. + + * Isolates CPUs from the general scheduler + * Stops timer ticks on isolated CPUs whenever possible + * Uses polling idle loop to improve performance + * Disables clocksource verification at runtime + +**guest-setup1.sh**: On running this script on guest vm will make following +configurations + + * Disable watchdogs to reduce overhead + * Routes device interrupts to non-RT CPU + * Disables RT throttling + +Hardware configuration +---------------------- + +Currently Intel POD1 is used as test environment for kvmfornfv to execute +cyclictest. As part of this test environment Intel pod1-jump is configured as +jenkins slave and all the latest build artifacts are downloaded on to it. +Intel pod1-node1 is the host on which a guest vm will be launched as a part of +running cylictest through yardstick. + +* For more information regarding hardware configuration, please visit + https://wiki.opnfv.org/display/pharos/Intel+Pod1 + https://build.opnfv.org/ci/computer/intel-pod1/ + http://artifacts.opnfv.org/octopus/brahmaputra/docs/octopus_docs/opnfv-jenkins-slave-connection.html diff --git a/docs/configurationguide/os-nosdn-kvm-ha.description.rst b/docs/configurationguide/os-nosdn-kvm-ha.description.rst new file mode 100644 index 000000000..d60276e0f --- /dev/null +++ b/docs/configurationguide/os-nosdn-kvm-ha.description.rst @@ -0,0 +1,126 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + + +Introduction +============ + +.. In this section explain the purpose of the scenario and the + types of capabilities provided + +The purpose of os-nosdn-kvm-ha scenario testing is to test the +High Availability deployment and configuration of OPNFV software suite +with OpenStack and without SDN software. This OPNFV software suite +includes OPNFV KVM4NFV latest software packages for Linux Kernel and +QEMU patches for achieving low latency. High Availability feature is achieved +by deploying OpenStack multi-node setup with 3 controllers and 2 computes nodes + +KVM4NFV packages will be installed on compute nodes as part of deployment. +This scenario testcase deployment is happening on multi-node by using +OPNFV Fuel deployer. + +Scenario Components and Composition +=================================== +.. In this section describe the unique components that make up the scenario, +.. what each component provides and why it has been included in order +.. to communicate to the user the capabilities available in this scenario. + +This scenario deploys the High Availability OPNFV Cloud based on the +configurations provided in ha_nfv-kvm_heat_ceilometer_scenario.yaml. +This yaml file contains following configurations and is passed as an +argument to deploy.py script + +* scenario.yaml:This configuration file defines translation between a + short deployment scenario name(os-nosdn-kvm-ha) and an actual deployment + scenario configuration file(ha_nfv-kvm_heat_ceilometer_scenario.yaml) + +* deployment-scenario-metadata:Contains the configuration metadata like + title,version,created,comment. + +* stack-extensions:Stack extentions are opnfv added value features in form + of a fuel-plugin.Plugins listed in stack extensions are enabled and + configured. + +* dea-override-config: Used to configure the HA mode,network segmentation + types and role to node assignments.These configurations overrides + corresponding keys in the dea_base.yaml and dea_pod_override.yaml. + These keys are used to deploy multiple nodes(3 controllers,2 computes) + as mention below. + + * **Node 1**: This node has MongoDB and Controller roles. The controller + node runs the Identity service, Image Service, management portions of + Compute and Networking, Networking plug-in and the dashboard. The + Telemetry service which was designed to support billing systems for + OpenStack cloud resources uses a NoSQL database to store information. + The database typically runs on the controller node. + + * **Node 2**: This node has Controller and Ceph-osd roles. Ceph is a + massively scalable, open source, distributed storage system. It is + comprised of an object store, block store and a POSIX-compliant distributed + file system. Enabling Ceph, configures Nova to store ephemeral volumes in + RBD, configures Glance to use the Ceph RBD backend to store images, + configures Cinder to store volumes in Ceph RBD images and configures the + default number of object replicas in Ceph. + + * **Node 3**: This node has Controller role in order to achieve high + availability. + + * **Node 4**: This node has Compute role. The compute node runs the + hypervisor portion of Compute that operates tenant virtual machines + or instances. By default, Compute uses KVM as the hypervisor. + + * **Node 5**: This node has compute role. + +* dha-override-config:Provides information about the VM definition and + Network config for virtual deployment.These configurations overrides + the pod dha definition and points to the controller,compute and + fuel definition files. + +* os-nosdn-kvm-ha scenario is successful when all the 5 Nodes are accessible, + up and running + +Scenario Usage Overview +======================= +.. Provide a brief overview on how to use the scenario and the features available to the +.. user. This should be an "introduction" to the userguide document, and explicitly link to it, +.. where the specifics of the features are covered including examples and API's + +* The high availability feature can be acheived by executing deploy.py with + ha_nfv-kvm_heat_ceilometer_scenario.yaml as an argument. +* Install Fuel Master and deploy OPNFV Cloud from scratch on Hardware + Environment: + + -Example: + + sudo python deploy.py -iso ~/ISO/opnfv.iso -dea ~/CONF/hardware/dea.yaml -dha ~/CONF/hardware/dha.yaml -s /mnt/images -b pxebr -log ~/Deployment-888.log.tar.gz + +* Install Fuel Master and deploy OPNFV Cloud from scratch on Virtual + Environment: + + -Example: + + sudo python deploy.py -iso ~/ISO/opnfv.iso -dea ~/CONF/virtual/dea.yaml -dha ~/CONF/virtual/dha.yaml -s /mnt/images -log ~/Deployment-888.log.tar.gz + +* os-nosdn-kvm-ha scenario can be executed from the jenkins project + "fuel-os-nosdn-kvm-ha-baremetal-daily-master" +* This scenario provides the High Availability feature by deploying + 3 controller,2 compute nodes and checking if all the 5 nodes + are accessible(IP,up & running). +* Test Scenario is passed if deployment is successful and all 5 nodes have + accessibility (IP , up & running). +* Observed that scenario is not running any testcase on top of deployment. + +Known Limitations, Issues and Workarounds +========================================= +.. Explain any known limitations here. + +* Test scenario os-nosdn-kvm-ha result is not stable. After node reboot + triggered by kvm plugin, sometimes puppet agent (mcollective) is not + responding with in the given time. + +References +========== + +For more information on the OPNFV Colorado release, please visit +http://www.opnfv.org/colorado diff --git a/docs/configurationguide/scenariomatrix.rst b/docs/configurationguide/scenariomatrix.rst new file mode 100644 index 000000000..1e2cef90a --- /dev/null +++ b/docs/configurationguide/scenariomatrix.rst @@ -0,0 +1,100 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +Scenarios are implemented as deployable compositions through integration with an installation tool. +OPNFV supports multiple installation tools and for any given release not all tools will support all +scenarios. While our target is to establish parity across the installation tools to ensure they +can provide all scenarios, the practical challenge of achieving that goal for any given feature and +release results in some disparity. + +Colorado scenario overeview +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The following table provides an overview of the installation tools and available scenario's +in the Colorado release of OPNFV. + +Scenario status is indicated by a weather pattern icon. All scenarios listed with +a weather pattern are possible to deploy and run in your environment or a Pharos lab, +however they may have known limitations or issues as indicated by the icon. + +Weather pattern icon legend: + ++---------------------------------------------+----------------------------------------------------------+ +| Weather Icon | Scenario Status | ++=============================================+==========================================================+ +| .. image:: ../images/weather-clear.jpg | Stable, no known issues | ++---------------------------------------------+----------------------------------------------------------+ +| .. image:: ../images/weather-few-clouds.jpg | Stable, documented limitations | ++---------------------------------------------+----------------------------------------------------------+ +| .. image:: ../images/weather-overcast.jpg | Deployable, stability or feature limitations | ++---------------------------------------------+----------------------------------------------------------+ +| .. image:: ../images/weather-dash.jpg | Not deployed with this installer | ++---------------------------------------------+----------------------------------------------------------+ + +Scenarios that are not yet in a state of "Stable, no known issues" will continue to be stabilised +and updates will be made on the stable/colorado branch. While we intend that all Colorado +scenarios should be stable it is worth checking regularly to see the current status. Due to +our dependency on upstream communities and code some issues may not be resolved prior to the D release. + +Scenario Naming +^^^^^^^^^^^^^^^ + +In OPNFV scenarios are identified by short scenario names, these names follow a scheme that +identifies the key components and behaviours of the scenario. The rules for scenario naming are as follows: + + os-[controller]-[feature]-[mode]-[option] + +Details of the fields are + * os: mandatory + + * Refers to the platform type used + * possible value: os (OpenStack) + +* [controller]: mandatory + + * Refers to the SDN controller integrated in the platform + * example values: nosdn, ocl, odl, onos + + * [feature]: mandatory + + * Refers to the feature projects supported by the scenario + * example values: nofeature, kvm, ovs, sfc + + * [mode]: mandatory + + * Refers to the deployment type, which may include for instance high availability + * possible values: ha, noha + + * [option]: optional + + * Used for the scenarios those do not fit into naming scheme. + * The optional field in the short scenario name should not be included if there is no optional scenario. + +Some examples of supported scenario names are: + + * os-nosdn-kvm-noha + + * This is an OpenStack based deployment using neutron including the OPNFV enhanced KVM hypervisor + + * os-onos-nofeature-ha + + * This is an OpenStack deployment in high availability mode including ONOS as the SDN controller + + * os-odl_l2-sfc + + * This is an OpenStack deployment using OpenDaylight and OVS enabled with SFC features + +Installing your scenario +^^^^^^^^^^^^^^^^^^^^^^^^ + +There are two main methods of deploying your target scenario, one method is to follow this guide which will +walk you through the process of deploying to your hardware using scripts or ISO images, the other method is +to set up a Jenkins slave and connect your infrastructure to the OPNFV Jenkins master. + +For the purposes of evaluation and development a number of Colorado scenarios are able to be deployed +virtually to mitigate the requirements on physical infrastructure. Details and instructions on performing +virtual deployments can be found in the installer specific installation instructions. + +To set up a Jenkins slave for automated deployment to your lab, refer to the `Jenkins slave connect guide. +<http://artifacts.opnfv.org/brahmaputra.1.0/docs/opnfv-jenkins-slave-connection.brahmaputra.1.0.html>`_ diff --git a/docs/design/Bare-metalPacketForwarding.png b/docs/design/Bare-metalPacketForwarding.png Binary files differnew file mode 100644 index 000000000..4b884e257 --- /dev/null +++ b/docs/design/Bare-metalPacketForwarding.png diff --git a/docs/design/DeviceInterruptTest.png b/docs/design/DeviceInterruptTest.png Binary files differnew file mode 100644 index 000000000..497f63fa3 --- /dev/null +++ b/docs/design/DeviceInterruptTest.png diff --git a/docs/design/PacketforwardingDPDK_OVS.png b/docs/design/PacketforwardingDPDK_OVS.png Binary files differnew file mode 100644 index 000000000..c8b689b82 --- /dev/null +++ b/docs/design/PacketforwardingDPDK_OVS.png diff --git a/docs/design/TimerTest.png b/docs/design/TimerTest.png Binary files differnew file mode 100644 index 000000000..52eacc8cf --- /dev/null +++ b/docs/design/TimerTest.png diff --git a/docs/design/index.rst b/docs/design/index.rst new file mode 100755 index 000000000..871f17388 --- /dev/null +++ b/docs/design/index.rst @@ -0,0 +1,12 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +================ +KVMFORNFV Design +================ + +.. toctree:: + :numbered: + :maxdepth: 3 + + kvmfornfv_design.rst diff --git a/docs/design/kvm1.png b/docs/design/kvm1.png Binary files differnew file mode 100644 index 000000000..3de1a6b80 --- /dev/null +++ b/docs/design/kvm1.png diff --git a/docs/design/kvmfornfv_design.rst b/docs/design/kvmfornfv_design.rst new file mode 100644 index 000000000..54dcd120a --- /dev/null +++ b/docs/design/kvmfornfv_design.rst @@ -0,0 +1,155 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +============ +Introduction +============ + +**Purpose**: + + This document provides an overview of the areas that can be addressed to + enhance the KVM Hypervisor for NFV. It is intended to capture and convey the + significant changes which have been made on the KVM Hypervisor. + + +=================== +Project description +=================== + +The NFV hypervisors provide crucial functionality in the NFV +Infrastructure(NFVI).The existing hypervisors, however, are not necessarily +designed or targeted to meet the requirements for the NFVI. + +This design focuses on the enhancement of following area for KVM Hypervisor + +* Minimal Interrupt latency variation for data plane VNFs: + * Minimal Timing Variation for Timing correctness of real-time VNFs + * Minimal packet latency variation for data-plane VNFs +* Fast live migration + +While these items require software development and/or specific hardware features +there are also some adjustments that need to be made to system configuration +information, like hardware, BIOS, OS, etc. + +**Minimal Interrupt latency variation for data plane VNFs** + +Processing performance and latency depend on a number of factors, including +the CPUs (frequency, power management features, etc.), micro-architectural +resources, the cache hierarchy and sizes, memory (and hierarchy, such as NUMA) +and speed, inter-connects, I/O and I/O NUMA, devices, etc. + +There are two separate types of latencies to minimize: + + 1. Minimal Timing Variation for Timing correctness of real-time + VNFs – timing correctness for scheduling operations(such as Radio scheduling) + 2. Minimal packet latency variation for data-plane VNFs – packet delay + variation, which applies to packet processing. + +For a VM, interrupt latency (time between arrival of H/W interrupt and +invocation of the interrupt handler in the VM), for example, can be either of +the above or both, depending on the type of the device. Interrupt latency with +a (virtual) timer can cause timing correctness issues with real-time VNFs even +if they only use polling for packet processing. + +We assume that the VNFs are implemented properly to minimize interrupt latency +variation within the VMs, but we have additional causes of latency variation +on KVM: + + - Asynchronous (e.g. external interrupts) and synchronous(e.g. instructions) + VM exits and handling in KVM (and kernel routines called), which may have + loops and spin locks + - Interrupt handling in the host Linux and KVM, scheduling and virtual + interrupt delivery to VNFs + - Potential VM exit (e.g. EOI) in the interrupt service routines in VNFs + - Exit to the user-level (e.g. QEMU) + +.. Figure:: kvm1.png + +===================== +Design Considerations +===================== + +The latency variation and jitters can be minimized with the below +steps (with some in parallel): + + 1. Statically and exclusively assign hardware resources + (CPUs, memory, caches,) to the VNFs. + + 2. Pre-allocate huge pages (e.g. 1 GB/2MB pages) and guest-to-host mapping, + e.g. EPT (Extended Page Table) page tables, to minimize or mitigate + latency from misses in caches, + + 3. Use the host Linux configured for hard real-time and packet latency, + Check the set of virtual devices used by the VMs to optimize or + eliminate virtualization overhead if applicable + + 4. Use advanced hardware virtualization features that can reduce or + eliminate VM exits, if present, and + + 5. Inspect the code paths in KVM and associated kernel services to + eliminate code that can cause latencies (e.g. loops and spin locks). + + 6. Measure latencies intensively. We leverage the existing testing methods. + OSADL, for example, defines industry tests for timing correctness. + +==================== +Goals and Guidelines +==================== + +The output of this project will provide : + + 1. A list of the performance goals, which will be obtained by the + OPNFV members (as described above) + + 2. A set of comprehensive instructions for the system configurations + (hardware features, BIOS setup, kernel parameters, VM configuration, + options to QEMU/KVM, etc.) + + 3. The above features to the upstream of Linux, the real-time patch + set, KVM, QEMU, libvirt, and + + 4. Performance and interrupt latency measurement tools + +========= +Test plan +========= + +The tests that need to be conducted to make sure that all components from OPNFV +meet the requirement are mentioned below: + +**Timer test**:This test utilize the cyclictest +(https://rt.wiki.kernel.org/index.php/Cyclictest) to test the guest timer +latency (the latency from the time that the guest timer should be triggered +to the time the guest timer is really triggered). + +.. Figure:: TimerTest.png + +**Device Interrupt Test**:A device on the hardware platform trigger interrupt +every one ms and the device interrupt will be delivered to the VNF. This test +cover the latency from the interrupt happened on the hardware to the time the +interrupt handled in the VNF. + +.. Figure:: DeviceInterruptTest.png + +**Packet forwarding (DPDK OVS)**:A packet is sent from TC (Traffic Generator) +to a VNF. The VNF, after processing the packet, forwards the packet to another +NIC and in the end the packet is received by the traffic generator. The test +check the latency from the packet is sent out by the TC to the time the packet +is received by the TC. + +.. Figure:: PacketforwardingDPDK_OVS.png + +**Packet Forwarding (SR-IOV)**:This test is similar to Packet Forwarding +(DPDK OVS). However, instead of using virtio NIC devices on the guest, +a PCI NIC or a PCI VF NIC is assigned to the guest for network acess. + +**Bare-metal Packet Forwarding**:This is used to compare with the above +packet forwarding scenario. + +.. Figure:: Bare-metalPacketForwarding.png + +========= +Reference +========= + +https://wiki.opnfv.org/display/kvm/ diff --git a/docs/glossary/kvmfornfv_glossary.rst b/docs/glossary/kvmfornfv_glossary.rst new file mode 100644 index 000000000..adebc815a --- /dev/null +++ b/docs/glossary/kvmfornfv_glossary.rst @@ -0,0 +1,396 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +************** +OPNFV Glossary +************** +Colorado 1.0 +------------ + +======== +Contents +======== + +This glossary provides a common definition of phrases and words commonly used +in OPNFV. + +-------- + +A +- + +Arno + + A river running through Tuscany and the name of the first OPNFV release. + +API + + Application Programming Interface + +AVX2 + + Advanced Vector Extensions 2 is an instruction set extension for x86. + + +-------- + +B +- + +Brahmaputra + + A river running through Asia and the name of the Second OPNFV release. + +Bios + + Basic Input/Output System + +Builds + + Build in Jenkins is a version of a program. + +Bogomips + + Bogomips is the number of million times per second a processor can do + absolutely nothing. + +-------- + +C +- + +CAT + + Cache Automation Technology + +CentOS + + Community Enterprise Operating System is a Linux distribution + +CICD + + Continuous Integration and Continuous Deployment + +CLI + + Command Line Interface + +Colorado + + A river in Argentina and the name of the Third OPNFV release. + +Compute + + Compute is an OpenStack service which offers many configuration options + which may be deployment specific. + +Console + + Console is display screen. + +CPU + Central Processing Unit + +-------- + +D +- + +Data plane + + The data plane is the part of a network that carries user traffic. + +Debian/deb + + Debian is a Unix-like computer operating system that is composed entirely of + free software. + +Docs + + Documentation/documents + +DPDK + + Data Plane Development Kit + +DPI + + Deep Packet Inspection + +DSCP + + Differentiated Services Code Point + +-------- + +F +- + +Flavors + + Flavors are templates used to define VM configurations. + +Fuel + + Provides an intuitive, GUI-driven experience for deployment and management of OpenStack + +-------- + +H +- + +Horizon + + Horizon is an OpenStack service which serves as an UI. + +Hypervisor + + A hypervisor, also called a virtual machine manager, is a program that allows + multiple operating systems to share a single hardware host. + +-------- + +I +- + +IGMP + + Internet Group Management Protocol + +IOMMU + + Input-Output Memory Management Unit + +IOPS + + Input/Output Operations Per Second + +IRQ + + Interrupt ReQuest is an interrupt request sent from the hardware level to + the CPU. + +IRQ affinity + + IRQ affinity is the set of CPU cores that can service that interrupt. + +-------- + +J +- + +Jenkins + + Jenkins is an open source continuous integration tool written in Java. + +JIRA + + JIRA is a bug tracking software. + +Jitter + + Time difference in packet inter-arrival time to their destination can be called jitter. + +JumpHost + + A jump host or jump server or jumpbox is a computer on a network typically + used to manage devices in a separate security zone. + +-------- + +K +- + +Kernel + + The kernel is a computer program that constitutes the central core of a + computer's operating system. + +-------- + +L +- + +Latency + + The amount of time it takes a packet to travel from source to destination is + Latency. + +libvirt + + libvirt is an open source API, daemon and management tool for managing + platform virtualization. + +-------- + +M +- + +Migration + + Migration is the process of moving from the use of one operating environment + to another operating environment. + +-------- + +N +- + +NFV + + Network Functions Virtualisation, an industry initiative to leverage + virtualisation technologies in carrier networks. + +NFVI + + Network Function Virtualization Infrastructure + +NIC + + Network Interface Controller + +NUMA + + Non-Uniform Memory Access + +-------- + +O +- + +OPNFV + + Open Platform for NFV, an open source project developing an NFV reference + platform and features. + +-------- + +P +- + +Pharos + + Is a lighthouse and is a project deals with developing an OPNFV lab + infrastructure that is geographically and technically diverse. + +Pipeline + + A suite of plugins in Jenkins that lets you orchestrate automation. + +Platform + + OPNFV provides an open source platform for deploying NFV solutions that + leverages investments from a community of developers and solution providers. + +Pools + + A Pool is a set of resources that are kept ready to use, rather than acquired + on use and released afterwards. + +-------- + +Q +- + +Qemu + + QEMU is a free and open-source hosted hypervisor that performs hardware + virtualization. + +-------- + +R +- + +RDMA + + Remote Direct Memory Access (RDMA) + +Rest-Api + + REST (REpresentational State Transfer) is an architectural style, and an + approach to communications that is often used in the development of web + services + +-------- + +S +- + +Scaling + + Refers to altering the size. + +Slave + + Works with/for master.where master has unidirectional control over one or + more other devices. + +SR-IOV + + Single root IO- Virtualization. + +Spin locks + + A spinlock is a lock which causes a thread trying to acquire it to simply + wait in a loop while repeatedly checking if the lock is available. + +Storage + + Refers to computer components which store some data. + +-------- + +T +- + +Tenant + + A Tenant is a group of users who share a common access with specific + privileges to the software instance. + +Tickless + + A tickless kernel is an operating system kernel in which timer interrupts + do not occur at regular intervals, but are only delivered as required. + +TSC + + Technical Steering Committee + +-------- + +V +- + +VLAN + + A virtual local area network, typically an isolated ethernet network. + +VM + + Virtual machine, an emulation in software of a computer system. + +VNF + + Virtual network function, typically a networking application or function + running in a virtual environment. + +-------- + +X +- + +XBZRLE + + Helps to reduce the network traffic by just sending the updated data + +-------- + +Y +- + +Yardstick + + Yardstick is an infrastructure verification. It is an OPNFV testing project. diff --git a/docs/installationprocedure/abstract.rst b/docs/installationprocedure/abstract.rst new file mode 100644 index 000000000..728f0aa1c --- /dev/null +++ b/docs/installationprocedure/abstract.rst @@ -0,0 +1,7 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +This document will give the user instructions on how to deploy available +KVM4NFV CICD build scenario verfied for the Colorado release of the OPNFV +platform. diff --git a/docs/installationprocedure/index.rst b/docs/installationprocedure/index.rst new file mode 100644 index 000000000..00ccaf237 --- /dev/null +++ b/docs/installationprocedure/index.rst @@ -0,0 +1,17 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +********************** +Installation procedure +********************** +Colorado 1.0 +------------ + +.. toctree:: + :numbered: + :maxdepth: 2 + + abstract.rst + kvm4nfv-cicd.installation.instruction.rst + kvm4nfv-cicd.release.notes.rst diff --git a/docs/installationprocedure/kvm4nfv-cicd.installation.instruction.rst b/docs/installationprocedure/kvm4nfv-cicd.installation.instruction.rst new file mode 100644 index 000000000..54886668d --- /dev/null +++ b/docs/installationprocedure/kvm4nfv-cicd.installation.instruction.rst @@ -0,0 +1,74 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +===================================== +KVM4NFV CICD Installation Instruction +===================================== + +Preparing the installation +-------------------------- + +The OPNFV project- KVM4NFV (https://gerrit.opnfv.org/gerrit/kvmfornfv.git) is +cloned first, to make the build scripts for Qemu & Kernel, Rpms and Debians +available. + +HW requirements +--------------- + +These build scripts are triggered on the Jenkins-Slave build server. Currently +Intel POD1 is used as test environment for kvmfornfv to execute cyclictest. As +part of this test environment Intel pod1-jump is configured as jenkins slave +and all the latest build artifacts are downloaded on to it. Intel pod1-node1 +is the host on which a guest vm will be launched as a part of running cylictest +through yardstick. + +Build instructions +------------------ + +Builds are possible for the following packages- + +**kvmfornfv source code**- The ./ci/build.sh is the main script used to trigger +the Rpms (on 'centos') and Debians (on 'ubuntu') builds in this case. + +* How to build Kernel/Qemu Rpms- To build rpm packages, build.sh script is run + with -p and -o option (i.e. if -p package option is passed as "centos" or in + default case). Example: sh ./ci/build.sh -p centos -o build_output + +* How to build Kernel/Qemu Debians- To build debian packages, build.sh script + is run with -p and -o option (i.e. if -p package option is passed as + "ubuntu"). Example: sh ./ci/build.sh -p ubuntu -o build_output + +* How to build all Kernel & Qemu, Rpms & Debians- To build both debian and rpm + packages, build.sh script is run with -p and -o option (i.e. if -p package + option is passed as "both"). Example: sh ./ci/build.sh -p both -o build_output + +Installation instructions +------------------------- + +Installation can be done in the following ways- + +**1. From kvmfornfv source code**- +The build packages that are prepared in the above section, are installed +differently depending on the platform. + +Please visit the links for each- + +* Centos : https://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-rpm-using.html +* Ubuntu : https://help.ubuntu.com/community/InstallingSoftware + +Test the built packages by executing the scripts present in ci/envs for +configuring host and guest respectively. Once the setup is in place, cyclictest +is performed via yardtick, using ./ci/test_kvmfornfv.sh + +**2. Using Fuel installer**- + +* Please refer to the document present at /fuel-plugin/README.md + +Post-installation activities +---------------------------- + +After the rpm and debian builds are deployed successfully on the host-guest and +give the expected cyclictest results, jenkins gives +1 to indicate the +completion of verify process. Thereafter, the releng executes the merge process +to merge this code into parent repository. diff --git a/docs/installationprocedure/kvm4nfv-cicd.release.notes.rst b/docs/installationprocedure/kvm4nfv-cicd.release.notes.rst new file mode 100644 index 000000000..a54fe0b11 --- /dev/null +++ b/docs/installationprocedure/kvm4nfv-cicd.release.notes.rst @@ -0,0 +1,138 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +============================= +Release Note for KVM4NFV CICD +============================= + + +Abstract +======== + +This document contains the release notes for the Colorado release of +OPNFV when using KVM4NFV CICD process. + +Introduction +============ + +Provide a brief introduction of how this configuration is used in OPNFV release +using KVM4VFV CICD as scenario. + +Be sure to reference your scenario installation instruction. + +Release Data +============ + ++--------------------------------------+--------------------------------------+ +| **Project** | NFV Hypervisors-KVM | +| | | ++--------------------------------------+--------------------------------------+ +| **Repo/tag** | kvmfornfv | +| | | ++--------------------------------------+--------------------------------------+ +| **Release designation** | | +| | | ++--------------------------------------+--------------------------------------+ +| **Release date** | | +| | | ++--------------------------------------+--------------------------------------+ +| **Purpose of the delivery** | Automate the KVM4VFV CICD scenario | +| | | ++--------------------------------------+--------------------------------------+ + +Deliverables +------------ + +Software deliverables +~~~~~~~~~~~~~~~~~~~~~ +Kernel and Qemu- RPM and Debian build packages + +Documentation deliverables +~~~~~~~~~~~~~~~~~~~~~~~~~~ +- KVM4NFV CICD process documentation available under <project>/docs/ under + various categories. + +Version change +-------------- +.. This section describes the changes made since the last version of this +.. document. + +Module version change +~~~~~~~~~~~~~~~~~~~~~ +- Build scripts made available for Kernel rpm, Kernel deb, Qemu rpm, Qemu + deb packages. +- Releng scripts made available to trigger these kvm4nfv build scripts for + automating complete CICD process. + +Document version change +~~~~~~~~~~~~~~~~~~~~~~~ +The following documents are added- +- configurationguide +- instalationprocedure +- userguide +- overview +- glossary +- releasenotes + +Reason for new version +---------------------- + +Feature additions +~~~~~~~~~~~~~~~~~ + ++--------------------------------------+--------------------------------------+ +| **JIRA REFERENCE** | **SLOGAN** | +| | | ++--------------------------------------+--------------------------------------+ +| JIRA: | NFV Hypervisors-KVMKVMFORNFV-34 | +| | | ++--------------------------------------+--------------------------------------+ +| JIRA: | NFV Hypervisors-KVMKVMFORNFV-34 | +| | | ++--------------------------------------+--------------------------------------+ + +Bug corrections +~~~~~~~~~~~~~~~ + +**JIRA TICKETS:** + ++--------------------------------------+--------------------------------------+ +| **JIRA REFERENCE** | **SLOGAN** | +| | | ++--------------------------------------+--------------------------------------+ +| JIRA: | | +| | | ++--------------------------------------+--------------------------------------+ + + +Known Limitations, Issues and Workarounds +========================================= + +System Limitations +------------------ + +Known issues +------------ + +**JIRA TICKETS:** + ++--------------------------------------+--------------------------------------+ +| **JIRA REFERENCE** | **SLOGAN** | +| | | ++--------------------------------------+--------------------------------------+ +| JIRA: | | ++--------------------------------------+--------------------------------------+ +| JIRA: | | ++--------------------------------------+--------------------------------------+ + + +Workarounds +----------- +See JIRA: <link> + + +References +========== +For more information on the OPNFV Brahmaputra release, please visit +http://www.opnfv.org/brahmaputra diff --git a/docs/overview/kvmfornfv_overview.rst b/docs/overview/kvmfornfv_overview.rst new file mode 100644 index 000000000..87d401bf0 --- /dev/null +++ b/docs/overview/kvmfornfv_overview.rst @@ -0,0 +1,25 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +============================= +KMV4MFV CICD Project Overview +============================= + +The detailed understanding of this project is organized into different sections- + +* userguide - This provides the required technical assistance to the user, in + using the KVM4NFV CICD process. +* installationprocedure- This will give the user instructions on how to deploy + available KVM4NFV CICD build scenario. +* configurationguide- This provides guidance for configuring KVM4NFV + environment, even with the use of specific installer tools for deploying some + components, available in the Colorado release of OPNFV. +* requirements- This includes the introduction of KVM4NFV CICD project, + specifications of how the project should work, and constraints placed upon + its execution. +* design- This includes the parameters or design considerations taken into + account for achieving minimal interrupt latency for the data VNFs. +* releasenotes- This describes a brief summary of recent changes, enhancements + and bug fixes in the KVM4NFV project. +* glossary- It includes the definition of terms, used in the KVM4NFV project diff --git a/docs/releasenotes/index.rst b/docs/releasenotes/index.rst new file mode 100644 index 000000000..9ae91bf0f --- /dev/null +++ b/docs/releasenotes/index.rst @@ -0,0 +1,11 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +========================= +KVM4NFV CICD Release Note +========================= + +.. toctree:: + :maxdepth: 2 + + release-notes diff --git a/docs/releasenotes/release-notes.rst b/docs/releasenotes/release-notes.rst new file mode 100644 index 000000000..c6013d2ef --- /dev/null +++ b/docs/releasenotes/release-notes.rst @@ -0,0 +1,174 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +===================================================== +OPNFV Release Note for "Colorado release" - KVMFORNFV +===================================================== + +.. _Kvmfornfv: https://wiki.opnfv.org/display/kvm/ + + +Abstract +======== + +This document provides the release notes for Colorado release of KVMFORNFV. + +License +======= + +KVMFORNFV is licensed under a Creative Commons Attribution 4.0 International +License.You should have received a copy of the license along with this. If not, +see <http://creativecommons.org/licenses/by/4.0/>. + + +**Contents** + +1 Version History + +2 Important notes + +3 Summary + +4 Delivery Data + +5 References + +1 Version history +=================== + ++--------------------+--------------------+--------------------+--------------------+ +| **Date** | **Ver.** | **Author** | **Comment** | +| | | | | ++--------------------+--------------------+--------------------+--------------------+ +|2016-08-22 | 0.1.0 | | Colorado release | +| | | | | ++--------------------+--------------------+--------------------+--------------------+ + +2 Important notes +=================== + +The software delivered in the OPNFV KVMFORNFV_ Project, comprises the +*ci*, the *kvmfornfv test cases*. + +The *KVMFORNFV* framework depends on the *Fuel* installer. + + +3 Summary +=========== + +This Colorado release provides *KVMFORNFV* as a framework to enhance the +KVM Hypervisor for NFV and OPNFV scenario testing, automated in the OPNFV +CI pipeline, including: + +* Documentation created + + * User Guide + + * Configuration Guide + + * Installation Procedure + + * Release notes (this document) + +* KVMFORNFV source code + +* Cyclictests for KVMFORNFV + +For Colorado release, the KVMFORNFV uses for the following: + +* Automation of building the Kernel and qemu RPM's or debians + +* Executing the Cyclictests to check the latency + +* os-sdn-kvm-ha Scenario testing for High Availability Configuration using + Fuel Installer + +The *KVMFORNFV framework* is developed in the OPNFV community, by the +KVMFORNFV_ team. + +4 Release Data +================ + ++--------------------------------------+--------------------------------------+ +| **Project** | NFV Hypervisors-KVM | +| | | ++--------------------------------------+--------------------------------------+ +| **Repo/commit-ID** | kvmfornfv | +| | | ++--------------------------------------+--------------------------------------+ +| **Release designation** | Colorado | +| | | ++--------------------------------------+--------------------------------------+ +| **Release date** | 2016-08-22 | +| | | ++--------------------------------------+--------------------------------------+ +| **Purpose of the delivery** | OPNFV Colorado Releases | +| | | ++--------------------------------------+--------------------------------------+ + +4.1 Version change +------------------ + +4.1.1 Module version changes +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +This is the first tracked release of KVMFORNFV + + +4.1.2 Document version changes +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +This is the initial version of the KVMFORNFV framework in OPNFV. + +4.2 Reason for version +---------------------- + +4.2.1 Feature additions +~~~~~~~~~~~~~~~~~~~~~~~ + ++--------------------------------------+--------------------------------------+ +| **JIRA REFERENCE** | **SLOGAN** | +| | | ++--------------------------------------+--------------------------------------+ +| JIRA: | NFV Hypervisors-KVMKVMFORNFV-34 | +| | | ++--------------------------------------+--------------------------------------+ +| JIRA: | NFV Hypervisors-KVMKVMFORNFV-34 | +| | | ++--------------------------------------+--------------------------------------+ + +4.2.2 Bug corrections +~~~~~~~~~~~~~~~~~~~~~ + +Initial Release + +4.3 Deliverables +---------------- + +4.3.1 Software deliverables +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +KVMFORNFV framework source code <Colorado> + +4.3.2 Documentation deliverables +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The below documents are delivered for Colorado KVMFORNFV Release: + + * User Guide + + * Configuration Guide + + * Installation Procedure + + * Overview + + * Release notes (this document) + + * Glossary + + +5 References +============= + +For more information on the KVMFORNFV Colorado release, please see: + +https://wiki.opnfv.org/display/kvm/ diff --git a/docs/requirements/index.rst b/docs/requirements/index.rst new file mode 100755 index 000000000..42dba0422 --- /dev/null +++ b/docs/requirements/index.rst @@ -0,0 +1,12 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +================ +KVMFORNFV Design +================ + +.. toctree:: + :numbered: + :maxdepth: 3 + + kvmfornfv_requirements.rst diff --git a/docs/requirements/kvmfornfv_requirements.rst b/docs/requirements/kvmfornfv_requirements.rst new file mode 100644 index 000000000..048838907 --- /dev/null +++ b/docs/requirements/kvmfornfv_requirements.rst @@ -0,0 +1,89 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 +.. (c) OPNFV, Intel Corporation, AT&T and others. + +============ +Introduction +============ +The NFV hypervisors provide crucial functionality in the NFV +Infrastructure(NFVI).The existing hypervisors, however, are not necessarily +designed or targeted to meet the requirements for the NFVI. + +This document specifies the list of requirements that need to be met as part +of this "NFV Hypervisors-KVM" project in Colorado release. + +As part of this project we need to make collaborative efforts towards enabling +the NFV features. + +================= +Scope and Purpose +================= + +The main purpose of this project is to enhance the KVM hypervisor for NFV, by +looking at the following areas initially: + +* Minimal Interrupt latency variation for data plane VNFs: + * Minimal Timing Variation for Timing correctness of real-time VNFs + * Minimal packet latency variation for data-plane VNFs +* Inter-VM communication +* Fast live migration + +The output of this project would be list of the performance goals,comprehensive +instructions for the system configurations,tools to measure Performance and +interrupt latency. + +=========================== +Methods and Instrumentation +=========================== + +The above areas would require software development and/or specific hardware +features, and some need just configurations information for the system +(hardware, BIOS, OS, etc.). + +A right configuration is critical for improving the NFV performance/latency. +Even working on the same code base, different configurations can make +completely different performance/latency result. +Configurations that can be made as part of this project to tune a specific +scenario are: + + 1. **Platform Configuration** : Some hardware features like Power management, + Hyper-Threading,Legacy USB Support/Port 60/64 Emulation,SMI can be configured. + 2. **Operating System Configuration** : Some configuration features like CPU + isolation,Memory allocation,IRQ affinity,Device assignment for VM,Tickless, + TSC,Idle,_RCU_NOCB_,Disable the RT throttling,NUMA can be configured. + 3. **Performance/Latency Tuning** : Application level configurations like + timers,Making vfio MSI interrupt as non-threaded,Cache Allocation + Technology(CAT) enabling can be tuned to improve the NFV + performance/latency. + +===================== +Features to be tested +===================== + +The tests that need to be conducted to make sure that latency is addressed are: +1. Timer test +2. Device Interrupt Test +3. Packet forwarding (DPDK OVS) +4. Packet Forwarding (SR-IOV) +5. Bare-metal Packet Forwarding + +============ +Dependencies +============ + +1. OPNFV Project: “Characterize vSwitch Performance for Telco NFV Use Cases” + (VSPERF) for performance evaluation of ivshmem vs. vhost-user. +2. OPNFV Project: “Pharos” for Test Bed Infrastructure, and possibly + “Yardstick” for infrastructure verification. +3. There are currently no similar projects underway in OPNFV or in an upstream + project +4. The relevant upstream project to be influenced here is QEMU/KVM and + libvirt. +5. In terms of HW dependencies, the aim is to use standard IA Server hardware + for this project, as provided by OPNFV Pharos. + +========= +Reference +========= + +https://wiki.opnfv.org/display/kvm/ diff --git a/docs/userguide/abstract.rst b/docs/userguide/abstract.rst new file mode 100644 index 000000000..8c36c268f --- /dev/null +++ b/docs/userguide/abstract.rst @@ -0,0 +1,16 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +======== +Abstract +======== + +In KVM4NFV project, we focus on the KVM hypervisor to enhance it for NFV, +by looking at the following areas initially- + +* Minimal Interrupt latency variation for data plane VNFs: + * Minimal Timing Variation for Timing correctness of real-time VNFs + * Minimal packet latency variation for data-plane VNFs +* Inter-VM communication +* Fast live migration diff --git a/docs/userguide/common.platform.render.rst b/docs/userguide/common.platform.render.rst new file mode 100644 index 000000000..486ca469f --- /dev/null +++ b/docs/userguide/common.platform.render.rst @@ -0,0 +1,15 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +================================ +Using common platform components +================================ + +This section outlines basic usage principals and methods for some of the +commonly deployed components of supported OPNFV scenario's in Colorado. +The subsections provide an outline of how these components are commonly +used and how to address them in an OPNFV deployment.The components derive +from autonomous upstream communities and where possible this guide will +provide direction to the relevant documentation made available by those +communities to better help you navigate the OPNFV deployment. diff --git a/docs/userguide/feature.userguide.render.rst b/docs/userguide/feature.userguide.render.rst new file mode 100644 index 000000000..d903f0711 --- /dev/null +++ b/docs/userguide/feature.userguide.render.rst @@ -0,0 +1,14 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +========================== +Using Colorado Features +========================== + +The following sections of the user guide provide feature specific usage +guidelines and references for KVM4NFV CICD project. + +* <project>/docs/userguide/low_latency.userguide.rst +* <project>/docs/userguide/live_migration.userguide.rst +* <project>/docs/userguide/tuning.userguide.rst diff --git a/docs/userguide/index.rst b/docs/userguide/index.rst new file mode 100644 index 000000000..55042ec04 --- /dev/null +++ b/docs/userguide/index.rst @@ -0,0 +1,20 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +**************** +OPNFV User Guide +**************** +Colorado 1.0 +------------ + +.. toctree:: + :maxdepth: 2 + + ./abstract.rst + ./introduction.rst + ./common.platform.render.rst + ./feature.userguide.render.rst + ./low_latency.userguide.rst + ./live_migration.userguide.rst + ./tuning.userguide.rst diff --git a/docs/userguide/introduction.rst b/docs/userguide/introduction.rst new file mode 100644 index 000000000..501d6391b --- /dev/null +++ b/docs/userguide/introduction.rst @@ -0,0 +1,53 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +======== +Overview +======== + +The project "NFV Hypervisors-KVM" makes collaborative efforts to enable NFV +features for existing hypervisors, which are not necessarily designed or +targeted to meet the requirements for the NFVI.The KVM4NFV CICD scenario +consists of Continuous Integration builds, deployments and testing +combinations of virtual infrastructure components. + +KVM4NFV Features +================ + +Using this project, the following areas are targeted- + +* Minimal Interrupt latency variation for data plane VNFs: + * Minimal Timing Variation for Timing correctness of real-time VNFs + * Minimal packet latency variation for data-plane VNFs +* Inter-VM communication +* Fast live migration + +Some of the above items would require software development and/or specific +hardware features, and some need just configurations information for the +system (hardware, BIOS, OS, etc.). + +We include a requirements gathering stage as a formal part of the project. +For each subproject, we will start with an organized requirement stage so +that we can determine specific use cases (e.g. what kind of VMs should be +live migrated) and requirements (e.g. interrupt latency, jitters, Mpps, +migration-time, down-time, etc.) to set out the performance goals. + +Potential future projects would include: + +* Dynamic scaling (via scale-out) using VM instantiation +* Fast live migration for SR-IOV + +The user guide outlines how to work with key components and features in +the platform, each feature description section will indicate the scenarios +that provide the components and configurations required to use it. + +The configuration guide details which scenarios are best for you and how to +install and configure them. + +General usage guidelines +======================== + +The user guide for KVM4NFV CICD features and capabilities provide step by step +instructions for using features that have been configured according to the +installation and configuration instructions. diff --git a/docs/all/live_migration.rst b/docs/userguide/live_migration.userguide.rst index 4af19b6f4..9fa9b82fd 100644 --- a/docs/all/live_migration.rst +++ b/docs/userguide/live_migration.userguide.rst @@ -1,13 +1,13 @@ .. This work is licensed under a Creative Commons Attribution 4.0 International License. + .. http://creativecommons.org/licenses/by/4.0 -.. (c) <optionally add copywriters name> Fast Live Migration =================== -The NFV project requires fast live migration. The specific requirement is total -live migration time < 2Sec, while keeping the VM down time < 10ms when running -DPDK L2 forwarding workload. +The NFV project requires fast live migration. The specific requirement is +total live migration time < 2Sec, while keeping the VM down time < 10ms when +running DPDK L2 forwarding workload. We measured the baseline data of migrating an idle 8GiB guest running a DPDK L2 forwarding work load and observed that the total live migration time was 2271ms @@ -50,9 +50,10 @@ a. Delay non-emergency operations is completed the VM down time is reduced to about 5-7ms. b. Optimize zero page checking Currently QEMU uses the SSE2 instruction to optimize the zero pages - checking. The SSE2 instruction can process 16 bytes per instruction. By using - the AVX2 instruction, we can process 32 bytes per instruction. Testingt shows - that using AVX2 can speed up the zero pages checking process by about 25%. + checking. The SSE2 instruction can process 16 bytes per instruction. + By using the AVX2 instruction, we can process 32 bytes per instruction. + Testing shows that using AVX2 can speed up the zero pages checking process + by about 25%. c. Remove unnecessary context synchronization. The CPU context was being synchronized twice during live migration. Removing this unnecessary synchronization shortened the VM downtime by about 100us. @@ -69,10 +70,18 @@ OS: RHEL 7.1 Kernel: 4.2 QEMU v2.4.0 -Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01) +Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit +X540-AT2 (rev 01) QEMU parameters: :: - /root/qemu.git/x86_64-softmmu/qemu-system-x86_64-enable-kvm -cpu host -smp 4 –device virtio-net-pci,netdev=net1,mac=52:54:00:12:34:56 –netdev type=tap,id=net1,script=/etc/kvm/qemu-ifup,downscript=no,vhost=on–device virtio-net-pci,netdev=net2,mac=54:54:00:12:34:56 –netdevtype=tap,id=net2,script=/etc/kvm/qemu-ifup2,downscript=no,vhost=on -balloon virtio -m 8192-monitor stdio /mnt/liang/ia32e_rhel6u5.qcow +${qemu} -smp ${guest_cpus} -monitor unix:${qmp_sock},server,nowait -daemonize \ +-cpu host,migratable=off,+invtsc,+tsc-deadline,pmu=off \ +-realtime mlock=on -mem-prealloc -enable-kvm -m 1G \ +-mem-path /mnt/hugetlbfs-1g \ +-drive file=/root/minimal-centos1.qcow2,cache=none,aio=threads \ +-netdev user,id=guest0,hostfwd=tcp:5555-:22 \ +-device virtio-net-pci,netdev=guest0 \ +-nographic -serial /dev/null -parallel /dev/null Network connection diff --git a/docs/all/lmdowntime.jpg b/docs/userguide/lmdowntime.jpg Binary files differindex c9faa4c73..c9faa4c73 100644 --- a/docs/all/lmdowntime.jpg +++ b/docs/userguide/lmdowntime.jpg diff --git a/docs/all/lmnetwork.jpg b/docs/userguide/lmnetwork.jpg Binary files differindex 8a9a324c3..8a9a324c3 100644 --- a/docs/all/lmnetwork.jpg +++ b/docs/userguide/lmnetwork.jpg diff --git a/docs/all/lmtotaltime.jpg b/docs/userguide/lmtotaltime.jpg Binary files differindex 2dced3987..2dced3987 100644 --- a/docs/all/lmtotaltime.jpg +++ b/docs/userguide/lmtotaltime.jpg diff --git a/docs/userguide/low_latency.userguide.rst b/docs/userguide/low_latency.userguide.rst new file mode 100644 index 000000000..df4581506 --- /dev/null +++ b/docs/userguide/low_latency.userguide.rst @@ -0,0 +1,68 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +Low Latency Environment +======================= + +Achieving low latency with the KVM4NFV project requires setting up a special +test environment. This environment includes the BIOS settings, kernel +configuration, kernel parameters and the run-time environment. + +Hardware Environment Description +-------------------------------- + +BIOS setup plays an important role in achieving real-time latency. A collection +of relevant settings, used on the platform where the baseline performance data +was collected, is detailed below: + +CPU Features +~~~~~~~~~~~~ + +Some special CPU features like TSC-deadline timer, invariant TSC and Process +posted interrupts, etc, are helpful for latency reduction. + +CPU Topology +~~~~~~~~~~~~ + +NUMA topology is also important for latency reduction. + +BIOS Setup +~~~~~~~~~~ + +Careful BIOS setup is important in achieving real time latency. Different +platforms have different BIOS setups, below are the important BIOS settings on +the platform used to collect the baseline performance data. + +Software Environment Setup +-------------------------- +Both the host and the guest environment need to be configured properly to +reduce latency variations. Below are some suggested kernel configurations. +The ci/envs/ directory gives detailed implementation on how to setup the +environment. + +Kernel Parameter +~~~~~~~~~~~~~~~~ + +Please check the default kernel configuration in the source code at: +kernel/arch/x86/configs/opnfv.config. + +Below is host kernel boot line example: +:: +isolcpus=11-15,31-35 nohz_full=11-15,31-35 rcu_nocbs=11-15,31-35 +iommu=pt intel_iommu=on default_hugepagesz=1G hugepagesz=1G mce=off idle=poll +intel_pstate=disable processor.max_cstate=1 pcie_asmp=off tsc=reliable + +Below is guest kernel boot line example +:: +isolcpus=1 nohz_full=1 rcu_nocbs=1 mce=off idle=poll default_hugepagesz=1G +hugepagesz=1G + +Please refer to `tunning.userguide` for more explanation. + +Run-time Environment Setup +~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Not only are special kernel parameters needed but a special run-time +environment is also required. Please refer to `tunning.userguide` for +more explanation. diff --git a/docs/userguide/openstack.rst b/docs/userguide/openstack.rst new file mode 100644 index 000000000..bd1919991 --- /dev/null +++ b/docs/userguide/openstack.rst @@ -0,0 +1,51 @@ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. + +.. http://creativecommons.org/licenses/by/4.0 + +-------------------------------- +Colorado OpenStack User Guide +-------------------------------- + +OpenStack is a cloud operating system developed and released by the +`OpenStack project <https://www.openstack.org>`_. OpenStack is used in OPNFV +for controlling pools of compute, storage, and networking resources in a Pharos +compliant infrastructure. + +OpenStack is used in Colorado to manage tenants (known in OpenStack as +projects),users, services, images, flavours, and quotas across the Pharos +infrastructure.The OpenStack interface provides the primary interface for an +operational Colorado deployment and it is from the "horizon console" that an +OPNFV user will perform the majority of administrative and operational +activities on the deployment. + +OpenStack references +-------------------- + +The `OpenStack user guide <http://docs.openstack.org/user-guide>`_ provides +details and descriptions of how to configure and interact with the OpenStack +deployment.This guide can be used by lab engineers and operators to tune the +OpenStack deployment to your liking. + +Once you have configured OpenStack to your purposes, or the Colorado +deployment meets your needs as deployed, an operator, or administrator, will +find the best guidance for working with OpenStack in the +`OpenStack administration guide <http://docs.openstack.org/user-guide-admin>`_. + +Connecting to the OpenStack instance +------------------------------------ + +Once familiar with the basic of working with OpenStack you will want to connect +to the OpenStack instance via the Horizon Console. The Horizon console provide +a Web based GUI that will allow you operate the deployment. +To do this you should open a browser on the JumpHost to the following address +and enter the username and password: + + + http://{Controller-VIP}:80/index.html> + username: admin + password: admin + +Other methods of interacting with and configuring OpenStack,, like the REST API +and CLI are also available in the Colorado deployment, see the +`OpenStack administration guide <http://docs.openstack.org/user-guide-admin>`_ +for more information on using those interfaces. diff --git a/docs/all/tuning.rst b/docs/userguide/tuning.userguide.rst index 760861b8b..3673ae2d4 100644 --- a/docs/all/tuning.rst +++ b/docs/userguide/tuning.userguide.rst @@ -1,13 +1,13 @@ .. This work is licensed under a Creative Commons Attribution 4.0 International License. + .. http://creativecommons.org/licenses/by/4.0 -.. (c) <optionally add copywriters name> Low Latency Tunning Suggestion ============================== -The correct configuration is critical for improving the NFV performance/latency. -Even working on the same codebase, configurations can cause wildly different -performance/latency results. +The correct configuration is critical for improving the NFV +performance/latency.Even working on the same codebase, configurations can cause +wildly different performance/latency results. There are many combinations of configurations, from hardware configuration to Operating System configuration and application level configuration. And there @@ -24,10 +24,10 @@ but others may not be configurable (e.g. SMI on most platforms). * **Power management:** Most power management related features save power at the expensive of latency. These features include: Intel®Turbo Boost Technology, - Enhanced Intel®SpeedStep, Processor C state and P state. Normally they should - be disabled but, depending on the real-time application design and latency - requirements, there might be some features that can be enabled if the impact on - deterministic execution of the workload is small. + Enhanced Intel®SpeedStep, Processor C state and P state. Normally they + should be disabled but, depending on the real-time application design and + latency requirements, there might be some features that can be enabled if + the impact on deterministic execution of the workload is small. * **Hyper-Threading:** The logic cores that share resource with other logic cores can introduce @@ -41,7 +41,8 @@ but others may not be configurable (e.g. SMI on most platforms). * **SMI (System Management Interrupt):** SMI runs outside of the kernel code and can potentially cause latency. It is a pity there is no simple way to disable it. Some vendors may - provide related switches in BIOS but most machines do not have this capability. + provide related switches in BIOS but most machines do not have this + capability. Operating System Configuration ------------------------------ @@ -54,32 +55,32 @@ Operating System Configuration for more information. * **Memory allocation:** - Memory shoud be reserved for realtime applications and usually hugepage should - be used to reduce page fauts/TLB misses. + Memory shoud be reserved for realtime applications and usually hugepage + should be used to reduce page fauts/TLB misses. * **IRQ affinity:** All the non-realtime IRQs should be affinitized to non realtime CPUs to - reduce the impact on realtime CPUs. Some OS distributions contain an irqbalance - daemon which balances the IRQs among all the cores dynamically. It should be - disabled as well. + reduce the impact on realtime CPUs. Some OS distributions contain an + irqbalance daemon which balances the IRQs among all the cores dynamically. + It should be disabled as well. * **Device assignment for VM:** - If a device is used in a VM, then device passthrough is desirable. In this case, - the IOMMU should be enabled. + If a device is used in a VM, then device passthrough is desirable. In this + case,the IOMMU should be enabled. * **Tickless:** - Frequent clock ticks cause latency. CONFIG_NOHZ_FULL should be enabled in the - linux kernel. With CONFIG_NOHZ_FULL, the physical CPU will trigger many fewer - clock tick interrupts(currently, 1 tick per second). This can reduce latency - because each host timer interrupt triggers a VM exit from guest to host which - causes performance/latency impacts. + Frequent clock ticks cause latency. CONFIG_NOHZ_FULL should be enabled in + the linux kernel. With CONFIG_NOHZ_FULL, the physical CPU will trigger many + fewer clock tick interrupts(currently, 1 tick per second). This can reduce + latency because each host timer interrupt triggers a VM exit from guest to + host which causes performance/latency impacts. * **TSC:** Mark TSC clock source as reliable. A TSC clock source that seems to be - unreliable causes the kernel to continuously enable the clock source watchdog - to check if TSC frequency is still correct. On recent Intel platforms with - Constant TSC/Invariant TSC/Synchronized TSC, the TSC is reliable so the - watchdog is useless but cause latency. + unreliable causes the kernel to continuously enable the clock source + watchdog to check if TSC frequency is still correct. On recent Intel + platforms with Constant TSC/Invariant TSC/Synchronized TSC, the TSC is + reliable so the watchdog is useless but cause latency. * **Idle:** The poll option forces a polling idle loop that can slightly improve the @@ -92,9 +93,9 @@ Operating System Configuration * **Disable the RT throttling:** RT Throttling is a Linux kernel mechanism that - occurs when a process or thread uses 100% of the core, leaving no resources for - the Linux scheduler to execute the kernel/housekeeping tasks. RT Throttling - increases the latency so should be disabled. + occurs when a process or thread uses 100% of the core, leaving no resources + for the Linux scheduler to execute the kernel/housekeeping tasks. RT + Throttling increases the latency so should be disabled. * **NUMA configuration:** To achieve the best latency. CPU/Memory and device allocated for realtime |
