Available since: 2.2.12
Time complexity: O(1)
This command returns the current number of entries in the slow log.
A new entry is added to the slow log whenever a command exceeds the execution time threshold defined by the
slowlog-log-slower-than configuration directive.
The maximum number of entries in the slow log is governed by the
slowlog-max-len configuration directive.
Once the slog log reaches its maximal size, the oldest entry is removed whenever a new entry is created.
The slow log can be cleared with the
SLOWLOG RESET command.
The number of entries in the slow log.