Hey, One of the authors of the SPS blog post here, as well as the engineer responsible for real-time alerting on SPS. It is an SPS graph (as indicated by the t

Hey, One of the authors of the SPS blog post here, as well as the engineer responsible for real-time alerting on SPS. It is an SPS graph (as indicated by the title). Spinnaker displays the graph on that page to give engineers a visualization for what SPS looks like during their deployment windows. If your service is critical for streaming you'll have a preference for deploying during lower traffic hours to minimize potential impact. Fortunately as the post mentions it is very regular, and has different praks in different aws regions, which allows regional deployments to be staggered.