I think peer filtering starts working well at some medium sized number of peers x events. Off the top I guess at five peers with a steady, non-zero event rate

I think peer filtering starts working well at some medium sized number of peers x events. Off the top I guess at five peers with a steady, non-zero event rate for a few hours, a slow peer should stick out obviously in the 95th percentile. However, op mentions that opaque workloads make peer identification difficult. IIUC this is a cool way to use two correlated metrics to extract performance outliers with some neat-sounding math that I didn’t study.