reuses verified
Messages sent over an existing connection
Messages that went down a connection already open — the measure of how well pipelining works.
In detail
Measured directly on the stand: a run of 24 messages to one destination produced exactly one connection, held open and reused for all of them. That is the default behaviour with connection_maxmessages unset, and it is what makes a node's connection count much smaller than its message count. The counter matters for two judgements. A high reuse ratio means the receiver tolerates us and the node is efficient. A collapse in reuses with connects rising means the far side is closing connections after each message — an early warning that shows up here before it shows up in the failure counts.