latency-history.3valkey - Man Page
Returns timestamp-latency samples for an event.
Synopsis
LATENCY History
event
Description
The LATENCY History
command returns the raw data of the event
ās latency spikes time series.
This is useful to an application that wants to fetch raw data in order to perform monitoring, display graphs, and so forth.
The command will return up to 160 timestamp-latency pairs for the event
.
Valid values for event
are: * active-defrag-cycle
* aof-fsync-always
* aof-stat
* aof-rewrite-diff-write
* aof-rename
* aof-write
* aof-write-active-child
* aof-write-alone
* aof-write-pending-fsync
* command
* expire-cycle
* eviction-cycle
* eviction-del
* fast-command
* fork
* rdb-unlink-temp-file
Reply
valkey-protocol(7) Array reply: an array where each element is a two elements array representing the timestamp and the latency of the event.
Complexity
O(1)
Acl Categories
@admin @dangerous @slow
History
- Available since: 2.8.13
Examples
127.0.0.1:6379> latency history command 1) 1) (integer) 1405067822 2) (integer) 251 2) 1) (integer) 1405067941 2) (integer) 1001
For more information refer to the Latency Monitoring Framework page.
See Also
acl(3valkey), acl-cat(3valkey), acl-deluser(3valkey), acl-dryrun(3valkey), acl-genpass(3valkey), acl-getuser(3valkey), acl-help(3valkey), acl-list(3valkey), acl-load(3valkey), acl-log(3valkey), acl-save(3valkey), acl-setuser(3valkey), acl-users(3valkey), acl-whoami(3valkey), bgrewriteaof(3valkey), bgsave(3valkey), command(3valkey), command-count(3valkey), command-docs(3valkey), command-getkeys(3valkey), command-getkeysandflags(3valkey), command-help(3valkey), command-info(3valkey), command-list(3valkey), config(3valkey), config-get(3valkey), config-help(3valkey), config-resetstat(3valkey), config-rewrite(3valkey), config-set(3valkey), dbsize(3valkey), debug(3valkey), failover(3valkey), flushall(3valkey), flushdb(3valkey), info(3valkey), lastsave(3valkey), latency(3valkey), latency-doctor(3valkey), latency-graph(3valkey), latency-help(3valkey), latency-histogram(3valkey), latency-latest(3valkey), latency-reset(3valkey), lolwut(3valkey), memory(3valkey), memory-doctor(3valkey), memory-help(3valkey), memory-malloc-stats(3valkey), memory-purge(3valkey), memory-stats(3valkey), memory-usage(3valkey), module(3valkey), module-help(3valkey), module-list(3valkey), module-load(3valkey), module-loadex(3valkey), module-unload(3valkey), monitor(3valkey), psync(3valkey), replconf(3valkey), replicaof(3valkey), restore-asking(3valkey), role(3valkey), save(3valkey), shutdown(3valkey), slowlog(3valkey), slowlog-get(3valkey), slowlog-help(3valkey), slowlog-len(3valkey), slowlog-reset(3valkey), swapdb(3valkey), sync(3valkey), time(3valkey)