perfSONAR on Low-cost Hardware

ARM Devices

A number of folks in the perfSONAR community have been experimenting with running perfSONAR on low cost (less than $130) hardware such as the Raspberry Pi, the cubox, and the Liva. In general this can work, with some caveats.

1. Time sync issues: Some low end hardware have issues with clock drift, which impacts latency measurements.

2. CPU performance issues: current ARM processors are not able to push TCP much more than about 300Mbps.

Only the perfsonar-tools or perfsonar-testpoint bundles should be considered on this class of device.

Celeron Devices

perfSONAR tools and services will work better on devices that cost around $200 such as the Intel NUC series, Zotac Zbox ci320 (2.1GHz CPU)/ci323 (dual NIC), GIGABYTE BRIX and various other examples available on the market as barebones small PC solutions. A number of these fulfill perfSONAR general requirements of 4GB RAM and four 2.1GHz cores, and thus should work well. Try to find a device with a fan and dual NICs if possible. These devices are capable of 1Gbps TCP.

Please note that the perfSONAR team is not formally endorsing any particular product. These are just an example of possible solutions.

System Requirements

ARM-based devices seem to work best running Ubuntu, while the slightly larger, $200-class nodes will usually work with CentOS, Debian or Ubuntu. The perfsonar-testpoint bundle works on CentOS 7 and Ubuntu 16/18, and Debian 9. We provide compatible Debian packages for 6 different hardware architectures:

• 32-bit (i386)

• 64-bit (amd64)

• ARMv4t and up (armel) - not recommended for the full testpoint bundle

• ARMv7 and up (armhf) - not recommended for the full testpoint bundle

• ARM 64-bit (arm64)

• PPC 64-bit (ppc64el)

Installation Instructions

The perfsonar-testpoint bundle can be used to install everything you need to add a low-end node to a centrally managed task template with a central measurement archive. See:

• Bundle Installation on CentOS

• Bundle Installation on Debian

Certain devices like the Liva use an EMMC drive that is only supported in the deskop version of Ubuntu. If the standard server ISO installation doe not recognize the drive, it may be worth attempting installation using the desktop ISO such as Ubuntu 18.04.3 Desktop.

Support

Support for low cost node installations is provided by the perfSONAR community through the usual communication channels.

Additional information

Many details on small nodes issues are described in this paper:

http://www.es.net/assets/pubs_presos/20160701-Chevalier-perfSONAR.pdf

See also the deployment examples section for additional information about low cost nodes deployment.