These views summarize wait events, grouped by host and event. By default, rows are sorted by host and descending total latency. Idle events are ignored.
The waits_by_host_by_latency and
x$waits_by_host_by_latency views
have these columns:
hostThe host from which the connection originated.
eventThe event name.
totalThe total number of occurrences of the event for the host.
total_latencyThe total wait time of timed occurrences of the event for the host.
avg_latencyThe average wait time per timed occurrence of the event for the host.
max_latencyThe maximum single wait time of timed occurrences of the event for the host.