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Add last_fork_start_time to INFO STATS #978

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Add last_fork_start_time to INFO STATS #978

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de56240
Add latest_fork_time to INFO STATS
enjoy-binbin Sep 2, 2024
89cf46e
Merge remote-tracking branch 'upstream/unstable' into last_fork_time
enjoy-binbin Oct 30, 2024
119e351
Rename to last_fork_start_time
enjoy-binbin Oct 30, 2024
d914f67
remove tmp files
enjoy-binbin Oct 31, 2024
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3 changes: 3 additions & 0 deletions src/server.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2609,6 +2609,7 @@ void resetServerStats(void) {
server.stat_fork_time = 0;
server.stat_fork_rate = 0;
server.stat_total_forks = 0;
server.stat_last_fork_start_time = 0;
server.stat_rejected_conn = 0;
server.stat_sync_full = 0;
server.stat_sync_partial_ok = 0;
Expand Down Expand Up @@ -5843,6 +5844,7 @@ sds genValkeyInfoString(dict *section_dict, int all_sections, int everything) {
"pubsubshard_channels:%llu\r\n", kvstoreSize(server.pubsubshard_channels),
"latest_fork_usec:%lld\r\n", server.stat_fork_time,
"total_forks:%lld\r\n", server.stat_total_forks,
"last_fork_start_time:%lld\r\n", server.stat_last_fork_start_time,
"migrate_cached_sockets:%ld\r\n", dictSize(server.migrate_cached_sockets),
"slave_expires_tracked_keys:%zu\r\n", getReplicaKeyWithExpireCount(),
"active_defrag_hits:%lld\r\n", server.stat_active_defrag_hits,
Expand Down Expand Up @@ -6435,6 +6437,7 @@ int serverFork(int purpose) {
server.stat_fork_time = ustime() - start;
server.stat_fork_rate =
(double)zmalloc_used_memory() * 1000000 / server.stat_fork_time / (1024 * 1024 * 1024); /* GB per second. */
server.stat_last_fork_start_time = start;
latencyAddSampleIfNeeded("fork", server.stat_fork_time / 1000);

/* The child_pid and child_type are only for mutually exclusive children.
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1 change: 1 addition & 0 deletions src/server.h
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Expand Up @@ -1808,6 +1808,7 @@ struct valkeyServer {
long long stat_fork_time; /* Time needed to perform latest fork() */
double stat_fork_rate; /* Fork rate in GB/sec. */
long long stat_total_forks; /* Total count of fork. */
long long stat_last_fork_start_time; /* Last us time to start a successful fork(). */
long long stat_rejected_conn; /* Clients rejected because of maxclients */
long long stat_sync_full; /* Number of full resyncs with replicas. */
long long stat_sync_partial_ok; /* Number of accepted PSYNC requests. */
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