WAIT_EVENTS

WAIT_EVENTS displays statistics about wait events on the current node, as described in Table 1. For key events in the kernel, see Table 2. Alternatively, view the list of all events in the system in the wait_event_info view. For details about the impact of each transaction lock on services, see LOCK.

**Table 1** WAIT_EVENTS columns
Name	Type	Description
nodename	text	Node name.
type	text	Event type.
event	text	Event name.
wait	bigint	Number of waiting times.
failed_wait	bigint	Number of waiting failures.
total_wait_time	bigint	Total waiting time (unit: μs).
avg_wait_time	bigint	Average waiting time (unit: μs).
max_wait_time	bigint	Maximum waiting time (unit: μs).
min_wait_time	bigint	Minimum waiting time (unit: μs).
last_updated	timestamp with time zone	Last time when the event was updated.