Add some metrics about the reactor
Add some metrics about the reactor

rzr/synapse,iot-factory/synapse,iot-factory/synapse,TribeMedia/synapse,matrix-org/synapse,rzr/synapse,matrix-org/synapse,rzr/synapse,iot-factory/synapse,TribeMedia/synapse,rzr/synapse,rzr/synapse,matrix-org/synapse,matrix-org/synapse,TribeMedia/synapse,TribeMedia/synapse,matrix-org/synapse,iot-factory/synapse,TribeMedia/synapse,iot-factory/synapse,matrix-org/synapse