InFlightCap

How many operations of an open-loop run may be outstanding: as many as its rate sends within one request's timeout (one sent beyond that could only time out), at most InFlightCap.PER_TARGET per target. Each one outstanding holds a connection, so the ceiling keeps an overloaded server's answer generator-overload or 429, never a storm of connections it refuses. boundBy names the bound that applied, which the run's result records.