Set up Your Cloud for the Benchmark

The SPEC Cloud IaaS 2016 Benchmark assumes that you know how to set up your own cloud.

You will be defining all aspects of what SPEC calls the ‘system under test’ (SUT).

  • Your SUT meets minimum functional and configuration requirements.
  • Your SUT can access the Internet to retrieve updates and patches, or you can transfer any updates/patches as needed.
  • You know how to edit text configuration files.

But before you begin, there are some basic requirements and abilities you must have to get a successful run.

Basic Cloud Requirements

  • Three physical machines with or without virtualization software.
  • A Cloud management software (e.g., OpenStack or a public cloud).
  • Enough disk storage to hold 50 GB of database files and logs.

Operating System Requirements

  • A *Nix compliant operating system base for instances that supports sh or bash shells.
  • Same *Nix user account/password across all instances (e.g., set up cbuser as the *Nix account in instance images).
  • Remote access all cloud instances via ssh client commands without prompting. If cloud instances are behind a firewall, then access must be set up using a jump box or a VPN to the benchmark harness machine.
  • sudo installed and configured to allow benchmark user (cbuser) to perform admin level tasks.

Suggested Storage Space For Workload and Benchmark Harness Machines

The benchmark has two workloads, namely, KMeans and YCSB. Each workload has two ‘roles’ defined in CBTOOL. These roles roughly correspond to load/data generator (ycsb/hadoop name node) and the workload (cassandra/hadoop cluster). The roles are ycsb, seed (Cassandra seed node), hadoopmaster, and hadoopslave.

The storage requirements for these roles is defined below.

Workload Local free space Usage Considerations
YCSB 50 GB Hold runtime log files for YCSB
SEED 50 GB Hold NoSQL database
HADOOPMASTER 50 GB Hold runtime log files and KMeans driver
HADOOPSLAVE 50 GB Hold data and log files

The recommended disk size for benchmark harness machine running CBTOOL and benchmark drivers is 50 GB. The machine holds results from an experiment.

Cloud Management Software

The SPEC Cloud IaaS 2016 Benchmark has been tested with the following cloud platforms.

  • Amazon EC2
  • Digital Ocean
  • Google Compute Engine
  • OpenStack (Juno,Kilo,Libert,Mitaka,Newton - should work with new versions alsoif there are no changes to OpenStack API)
  • Rackspace
  • IBM SoftLayer

The SPEC Cloud IaaS 2015 Benchmark incorporates normal cloud management tasks into its workload sequence. These include creation and deletion of instances from one or more instance images. The list above shows the cloud management systems (aka cloud managers) that SPEC tested during the development cycle and considers supported. If the cloud manager is not among the cloud management systems, then the tester needs to create their own set of adapters for CBTOOL and have them reviewed with SPEC OSG cloud subcommittee prior to submission of results.

Cloud Management Interface and Adapters

The SPEC Cloud IaaS 2016 Benchmark manager, CBTOOL, uses a defined set of cloud and benchmark management tasks during the test sequence. When you build a new adapter, you should identify the corresponding capabilities or command sequences that implement tasks such as:

  1. Provision instance - create compute instances, (optional) install required software;
  2. Provision storage for instances;
  3. Provision application instance - distribute generated workload configuration files, start workload specific services, and determine service availability;
  4. Start/stop specific load driver for an application instance;
  5. Monitor application instance availability and responsiveness during workload runs;
  6. Collect workload results (log files, or command line responses);
  7. Stop workload servers
  8. Destroy application instance(s);
  9. Destroy instances

NTP Server and Timezone for White Box Cloud

For non-instance machines in a white box cloud, use of the UTC timezone is recommended. These machines should get their time via NTP from the same NTP server(s) as the test instances. However, this is not required for a compliant run.

Block Storage Support

Most clouds support some form of block storage support, allowing additional, block-based volumes to be attached to running instances in their cloud. These volumes can take many forms, such as NASes, SAN-based LUNs, or network filesystems. They can be attached to all kinds of instances, not limited to VMs, containers, or baremetal. As long as the respective CBTOOL adapter for the cloud you are benchmarking supports attaching these volumes during benchmark runtime, CBTOOL will AUTOMATICALLY make use of them. This works in a fairly sophisticated way: If you configure CBTOOL to attach an extra volume, during the application configuration step, CBTOOL will scan all the volumes available from within the instance which are not hosting either root nor swap volumes. If it finds one larger than 1GB (to also exclude cloud-init volumes), it will AUTOMATICALLY put a filesystem on the volume and instruct both cassandra and HDFS to store data onto those volumes. By default, none of the CBTOOL cloud adapters will attach a volume — this must be specifically requested by the user. If so, CBTOOL will indeed make use of the volume and the effects of using such a volume (even if slightly slower) will most certainly appear in the reported result to SPEC during submission time. If you are preparing such a submission, it is very important to disclose this configuration in the YAML comments of your submission, despite the fact that the benchmark is collecting information from within the instance — it must be obvious during the review process that your instances are configured this way in the YAML, not only in the CBTOOL configuration before we receive a submission.