Mean service time for I/O events (in microseconds).

C# |
public long ioEventsMeanServiceTime()

Mean service time for I/O events (in microseconds). This is an exponentially
weighted moving average (weighted to more recent) for accumulated I/O event
service durations, measured from the point of de-queuement until the
application has finished servicing the event. Configuration option
queue_service_time_enabled must be activated.