nmon/internal/groups/doc.go

// Package groups turns group membership into traffic: the oriented sum of
// the members' 5-minute rates, its graph, and its monthly p95.
//
// A group's membership has a history. Every query resolves membership per
// timestamp, so adding a port in February never changes January. Per
// timestamp the members are reduced in this order: drop interfaces flagged
// unreliable (32-bit counters), drop a LAG member whose LAG parent is also a
// member, orient each remaining member (direction "away" swaps in and out)
// and add the rates. The group p95 is the nearest-rank percentile of that
// summed series; per-port percentiles are never added.
package groups