sfoolish / yardstick

yardstick

Yardstick

Overview

Yardstick is a framework to test non functional characteristics of an NFV Infrastructure as perceived by an application.

An application is a set of virtual machines deployed using the orchestrator of the target cloud, for example OpenStack Heat.

Yardstick measures a certain service performance but can also validate the service performance to be within a certain level of agreement.

Yardstick is _not_ about testing OpenStack functionality (tempest) or benchmarking OpenStack APIs (rally).

Concepts

Benchmark - assess the relative performance of something

Benchmark configuration file - describes a single test case in yaml format

Context - The set of cloud resources used by a benchmark (scenario) – Is a simplified Heat template (context is converted into a Heat template)

Data - Output produced by running a benchmark, written to a file in json format

Runner - Logic that determines how the test is run – For example number of iterations, input value stepping, duration etc

Scenario - Type/class of measurement for example Ping, Pktgen, (Iperf, LmBench, ...)

SLA - Some limit to be verified (specific to scenario), for example max_latency – Associated action to automatically take: assert, monitor etc

Architecture

Yardstick is a command line tool written in python inspired by Rally. Yardstick is intended to run on a computer with access and credentials to a cloud. The test case is described in a configuration file given as an argument.

How it works: the benchmark task configuration file is parsed and converted into an internal model. The context part of the model is converted into a Heat template and deployed into a stack. Each scenario is run using a runner, either serially or in parallel. Each runner runs in its own subprocess executing commands in a VM using SSH. The output of each command is written as json records to a file.

Install

TBD

Run

TBD

Custom Image

pktgen test requires a ubuntu server cloud image TBD

Development Environment

Example setup known to work for development and test: - Development environment: Ubuntu14.04, eclipse, virtual environment - Cloud: Mirantis OpenStack 6.0 deployed using Virtualbox

Create a virtual environment: $ sudo apt-get install python-virtualenv $ virtualenv ~/yardstick_venv $ source ~/yardstick_venv/bin/activate $ python setup.py develop