Add Mean Opinion Score (MOS) to pingtable.pl metrics

Introduction

We needed to add several metrics to the aggregated pinger reports. These included:

• The Mean Opportunity Score in the Tutorial.
• Alpha an directness of connection measure
• Maximum RTT (as an aid for exposing buffer bloat).

Implementation

We wrote a script wrapper-for-hourly.pl to analyze the gathered raw ping data from the monitoring hosts and create the hourly aggregated data. The script enables one to select the metrics to be calculated, the time frame, the ping size and the host or site.

This was typically run as a batch job with the output shown here.