The LATENCY LATEST command reports the latest latency events logged.
Each reported event has the following fields:
- Event name.
- Unix timestamp of the latest latency spike for the event.
- Latest event latency in millisecond.
- All-time maximum latency for this event.
"All-time" means the maximum latency since the Redis instance was started, or the time that events were reset LATENCY RESET.
127.0.0.1:6379> debug sleep 1 OK (1.00s) 127.0.0.1:6379> debug sleep .25 OK 127.0.0.1:6379> latency latest 1) 1) "command" 2) (integer) 1405067976 3) (integer) 251 4) (integer) 1001
For more information refer to the Latency Monitoring Framework page.
The command returns an array where each element is a four elements array representing the event's name, timestamp, latest and all-time latency measurements.