New Wait Stats In SQL Server 2022

Patiently Waiting


This is just a quick post to list out new wait stats in SQL Server 2022. How many will be useful, time will tell.

Some waits that I think might be interesting:

  • CXSYNC_CONSUMER (Currently in Azure)
  • CXSYNC_PORT (Currently in Azure)
  • PARALLEL_DB_SEEDING_SEMAPHORE
  • PLPGSQL

It looks like maybe automatic seeding for Availability Groups is getting the ability to process multiple databases at once, and we’re getting some parallel query waits that used to be Azure only.

I’m really scratching my head about PLPGSQL though. That’s the “programming language” that Postgres supports, which is sort of like what Oracle supports.

Time will tell!

+-----------------------------------------------------+
|                      wait_type                      |
+-----------------------------------------------------+
| ARC_IMDS_RESOURCE_INFO                              |
| BABYLON_POLICY_UPDATE                               |
| BABYLON_PULL_TASK                                   |
| BACKUP_BACKUP_MGR_MIHYBRIDINFO_RWLOCK               |
| BACKUP_LOG_IO_STALL                                 |
| BLOB_LIST_LIMIT_IO_REQUESTS                         |
| BLOB_LIST_RWLOCK                                    |
| BUFFERPOOL_SCAN                                     |
| CDC_SCHEDULERCACHE_ACCESS                           |
| CDC_THROTTLE_LOG_RATE_LOG_SIZE                      |
| CMEMDETOUR                                          |
| COLLECTOR_VIEW_LIST                                 |
| COLUMNSTORE_CSI_CACHE                               |
| COSMOSDB_INIT_MUTEX                                 |
| CXSYNC_CONSUMER                                     |
| CXSYNC_PORT                                         |
| DATA_EXPORT_COMPLETION_SYNC                         |
| DIFF_BACKUP_SELF_THROTTLING                         |
| DIRECTORY_CONTENT_LIST_CLERK                        |
| DIRTY_PAGE_THROTTLING                               |
| DISPATCHER_JOIN                                     |
| DTC_INFO_DMV                                        |
| DTC_PRECOMMIT                                       |
| DTCNEW_DWSHELLDB_PROPERTIES                         |
| EDC_DOPP_BACKGROUND                                 |
| EDC_DOPP_LOCK                                       |
| EDC_INIT_RWLOCK                                     |
| EMC_EXEC                                            |
| EMC_FABRIC_RESOLVE_SERVICE_URI                      |
| EMC_INIT_MUTEX                                      |
| EXECUTED_REQ_TABLE_STATE_RWLOCK                     |
| EXTERNAL_SCRIPT_CREATE_CERTIFICATE                  |
| EXTERNAL_SERVICE_BLOB_MESSAGE                       |
| EXTERNAL_SERVICE_CONNECTION_CLOSE                   |
| EXTGOV_ATTR_SYNC_BACKGROUND                         |
| FABRIC_ENDPOINT_SYNC_EVENT                          |
| FCB_DISKSPACE_COUNTERS_RWLOCK                       |
| FIDO_AUTOSTATISTICS_TASK                            |
| FIDO_CLIENT_STARTUP                                 |
| FOREIGN_FILE_VALIDATION                             |
| FULL_BACKUP_SELF_THROTTLING                         |
| GLOBAL_QUERY_EXTRACTOR_EXECUTE                      |
| HADR_THROTTLE_LOG_RATE_MISMATCHED_SLO               |
| HADR_THROTTLE_LOG_RATE_SLO_DOWNGRADE                |
| HADR_THROTTLE_REFRESH_MAX_SIZE                      |
| HTTP_EXTERNAL_CONNECTION                            |
| HTTP_EXTERNAL_CONNECTION_ALLOW_LIST                 |
| HTTP_EXTERNAL_CONNECTION_IPV4_BLOCK_LIST            |
| INDEX_BUILD_BUCKETIZATION_BARRIER                   |
| INDEX_BUILD_BUCKETIZATION_INFO_MAP_SYNC             |
| INDEX_BUILD_BUCKETIZATION_INFO_SYNC                 |
| LCK_REQ_TSK_PROXY                                   |
| LEDGER_BLOCK_GENERATION                             |
| LEDGER_TRUNCATION                                   |
| LOCK_SAFEMODE                                       |
| LOCK_UPDATE                                         |
| LOGPOOL_CONSUMER_DELETABLE                          |
| LSN_LOC_MAP_LOCK                                    |
| MANAGED_DISKS_CONFIGURATION                         |
| MULTITHREADED_VERSION_CLEANUP_WAIT_WORK             |
| NATIVE_SHUFFLE_OPEN_HANDLE                          |
| ORDLOCK_POPULATE_SYNC                               |
| PARALLEL_BPOOL_DEALLOCATION_WORKER                  |
| PARALLEL_DB_SEEDING_SEMAPHORE                       |
| PLPGSQL                                             |
| POLARIS_TSQL_TASK                                   |
| POPULATE_LOCK_ORDINALS                              |
| PREEMPTIVE_AAD_HTTP_EVENT_WAIT                      |
| PREEMPTIVE_COSMOSDB                                 |
| PREEMPTIVE_EMC                                      |
| PREEMPTIVE_FILE_MAPPING                             |
| PREEMPTIVE_HTTP_EXTERNAL_CONNECTION_EVENT_WAIT      |
| PREEMPTIVE_OS_GETQUEUEDCOMPLETIONSTATUS             |
| PREEMPTIVE_OS_PDH_WMI_QUERY                         |
| PREEMPTIVE_PREDICT_API                              |
| PREEMPTIVE_REPORTING                                |
| PREEMPTIVE_RG_HTTP                                  |
| PREEMPTIVE_SNI_SOCKET_BIND                          |
| PREEMPTIVE_SNI_SOCKET_LISTEN                        |
| PREEMPTIVE_SYNAPSESTREAMING_HTTP_EVENT_WAIT         |
| PREEMPTIVE_XCS_SNAPPY                               |
| PREEMPTIVE_XCS_THRIFT                               |
| PRU_PAGE_LSN_CACHE_LOCK                             |
| PVS_TRACK_PAGES_MUTEX                               |
| PWAIT_AUTO_START_AUDIT_SESSIONS                     |
| PWAIT_DBCC_FREEZEIO_MUTEX                           |
| PWAIT_DBCC_THAWIO_MUTEX                             |
| PWAIT_EXTERNAL_SERVICE_HUB                          |
| PWAIT_EXTERNAL_SERVICE_SEND_MESSAGE                 |
| PWAIT_FCS_MD_READ_AHEAD                             |
| PWAIT_FIDO_INDEXSTORE_CONNECTIONS_MANAGER_HASHTABLE |
| PWAIT_LATCH_ONLY                                    |
| PWAIT_PREEMPTIVE_OS_AUTHENTICATEDWEBCALL            |
| PWAIT_PREEMPTIVE_OS_AUTHENTICATIONTOKEN             |
| PWAIT_PREEMPTIVE_OS_CRYPTOPENSTORAGEPROVIDER        |
| PWAIT_PREEMPTIVE_OS_VSMATTESTATIONSERVICE           |
| PWAIT_PS_RBPEX_HOT_PAGES_RWLOCK                     |
| PWAIT_RBIO_IC_ACQUIRE_PAYLOAD                       |
| PWAIT_SBS_API_STATS_PUBLISH                         |
| PWAIT_SBS_IOAPI_STATS_PUBLISH                       |
| PWAIT_SYNAPSE_LINK_CAPTURE                          |
| PWAIT_SYNAPSE_LINK_COMMIT                           |
| PWAIT_SYNAPSE_LINK_DATA_EXPORT_SESSION              |
| PWAIT_SYNAPSE_LINK_DB_CLEANUP                       |
| PWAIT_SYNAPSE_LINK_END_HISTORY_SESSION              |
| PWAIT_SYNAPSE_LINK_GET_CURRENT_DB_LSN               |
| PWAIT_SYNAPSE_LINK_GET_DB_LIST,                     |
| PWAIT_SYNAPSE_LINK_GET_TABLE_HASHTABLE,             |
| PWAIT_SYNAPSE_LINK_LZN_API_CALL                     |
| PWAIT_SYNAPSE_LINK_MEM_CAP_THROTTLE                 |
| PWAIT_SYNAPSE_LINK_POPULATE_METADATA                |
| PWAIT_SYNAPSE_LINK_PUBLISH                          |
| PWAIT_SYNAPSE_LINK_UPDATE_TABLE_STATUS              |
| PWAIT_TOAD_CELL_ZONE                                |
| PWAIT_TOAD_DELTA_FORCE_ZONE                         |
| PWAIT_TOAD_OCCI_ZONE                                |
| PWAIT_TOAD_STAR_CELL_ZONE                           |
| PWAIT_TOAD_TUNING_ZONE                              |
| PWAIT_VLDB_PLANNED_FAILOVER_FORWARDER_THROTTLING    |
| PWAIT_VLDB_PLANNED_FAILOVER_START_THROTTLING        |
| PWAIT_VLDB_PLANNED_FAILOVER_STOP_THROTTLING         |
| PWAIT_XIO_REQUEST_IN_PROGRESS_LOCK                  |
| PWAIT_XLOG_POOL_EVICT_SLEEP                         |
| RBIO_AWAIT_RESPONSE                                 |
| RBIO_COMM_RETRY                                     |
| RBIO_COMM_UNINITIALIZE                              |
| RBIO_COMPLETE_LOG_READ                              |
| RBIO_CONNECTION_MGR                                 |
| RBIO_DB_RESTART                                     |
| RBIO_DB_TRANS_PRIMARY                               |
| RBIO_DBTRANSPRIMARY_SYNC                            |
| RBIO_FCB_DEFERRED_IO                                |
| RBIO_FCB_DEFERRED_IO_FN                             |
| RBIO_INITIALIZE_MUTEX                               |
| RBIO_PS_ACTOR_COLLECTION_RWLOCK                     |
| RBIO_RG_DESTAGE                                     |
| RBIO_RG_GEOREPLICA                                  |
| RBIO_RG_LOCALDESTAGE                                |
| RBIO_RG_MIGRATION_TARGET                            |
| RBIO_RG_REPLICA                                     |
| RBIO_RG_STORAGE                                     |
| RBIO_RG_STORAGE_CHECKPOINT                          |
| RBIO_UNINITIALIZE                                   |
| RBPEX_CHANGE_FILE_SIZE_MUTEX                        |
| RBPEX_CREATESNAPSHOT_RETRY                          |
| RBPEX_WRITEBEHIND_DB_STATE                          |
| RBPEXSHRINKTASK_SHUTDOWN                            |
| REPORTING_EXEC                                      |
| RG_MANAGER_VHD_GROWTH                               |
| RG_SERVER_CONFIGS                                   |
| ROW_GROUP_POPULATION                                |
| SBS_CONTEXT                                         |
| SBS_LRU_EVICTION                                    |
| SEEDING_COMPLETED_MUTEX                             |
| SEEDING_SELF_THROTTLING                             |
| SESSION_MGR                                         |
| SLEEP_RBPEXSHRINKTASK                               |
| SLEEP_SAFEMODE                                      |
| SOS_RG_MEM_TARGET_LOCK                              |
| SP_RESOLVE_DEFERRED                                 |
| SQLPAL_PREEMPTIVE_WAIT                              |
| SQP_STATS_REPORTING                                 |
| START_BACKGROUND_TASK_MUTEX                         |
| STREAMING_SERVICE_RESTART_FINISHED                  |
| STREAMING_SERVICE_SEND_KILL_PROCESS                 |
| STRIPE_META_UPDATE                                  |
| SYNAPSELINK_CAPTURE_JOBTASK_ACCESS                  |
| SYNAPSELINK_COMMIT_JOBTASK_ACCESS                   |
| SYNAPSELINK_FAILBATCH_ACCESS                        |
| SYNAPSELINK_PUBLISH_JOBTASK_ACCESS                  |
| SYNAPSELINK_SNAPSHOT_JOBTASK_ACCESS                 |
| TELEMETRY_SNAP                                      |
| THROTTLE_LOG_RATE_LOG_STORAGE                       |
| TOAD_AUTOSTATISTICS_ZONE                            |
| TOAD_DELETEBITMAP_ZONE                              |
| TOAD_DISCOVERY                                      |
| TOAD_FUTURE                                         |
| TOAD_QUEUE                                          |
| TOAD_RESOURCE_SEMAPHORE                             |
| TOAD_SHUTDOWN                                       |
| VERSION_LEASE_HASH_LOCK                             |
| VLDB_DUMP_LOG_LOCK                                  |
| VLDB_SNAPSHOT_MUTEX                                 |
| WAIT_AE_KEYADD                                      |
| WAIT_AETM_CRITICAL_SECTION                          |
| WAIT_AETM_ENCLAVE_WORKER_SLEEP                      |
| WAIT_AETM_HOST_WORKER_SLEEP                         |
| WAIT_DELTA_CACHE                                    |
| WAIT_DW_TX_EXTERNALIZATION_IO_COMPLETION            |
| WAIT_FCS_MD_RESOLVE                                 |
| WAIT_FIDO_GLMS_ASYNC_WORKER                         |
| WAIT_FIDO_GLMS_SYNC                                 |
| WAIT_FIDO_GLMS_UT                                   |
| WAIT_FOR_MS_POLL                                    |
| WAIT_FULLTEXT_CRAWL_MANAGER                         |
| WAIT_GC_IO_COMPLETION                               |
| WAIT_GLM_CONTROLLER                                 |
| WAIT_GLM_DB                                         |
| WAIT_GLM_DEK_LIST                                   |
| WAIT_GLM_SYNC_CLIENT                                |
| WAIT_GLMS_ACCESS                                    |
| WAIT_GLMS_LOG                                       |
| WAIT_GLMS_LOG_BLOCK_IO                              |
| WAIT_INDEXSTORE_COMPUTE_PARTITION_BUCKETS           |
| WAIT_INDEXSTORE_LIMIT_REQUESTS                      |
| WAIT_LCKMGR                                         |
| WAIT_LM_CREATE                                      |
| WAIT_LOG_REPLICA_MGR_HASH_LOCK                      |
| WAIT_LOG_REPLICA_ROLE_STABILITY_LOCK                |
| WAIT_LOG_REPLICA_WRITE_LEASE_PROPERTY_HASH_LOCK     |
| WAIT_ODBC                                           |
| WAIT_PHYSICAL_CATALOG                               |
| WAIT_RBAC_PROVIDER                                  |
| WAIT_RBAC_SESSION_AUDIT                             |
| WAIT_RBAC_SESSIONS_AUDIT                            |
| WAIT_RBPEX_WRITEBEHIND_CKPT_CONSISTENCY_LOCK        |
| WAIT_RETENTION_POLICY                               |
| WAIT_RM_RBIOCONNECTION_INIT                         |
| WAIT_SEQUENCE                                       |
| WAIT_SYNC_LAG_PARTNERS_LIST                         |
| WAIT_TRANSPORT                                      |
| WAIT_TSQL_TASK                                      |
| WAIT_VLF_IO_TRACKER_DRAIN_IO                        |
| WAIT_XCS_LOCATOR_FETCH                              |
| WAIT_XLOG_REPLICA_BG_TASK_LOCK                      |
| WMI_REGISTRATION                                    |
| XDB_PKG_LAUNCHER_CONNECTION                         |
| XE_LIVE_TARGET_MUTEX                                |
| XE_PREDICATE_HEAP_ALLOC                             |
| XE_PREDICATE_HEAP_FREE                              |
| XE_RING_TARGET_MUTEX                                |
| XE_SQL_TEXT_HEAP_ALLOC                              |
| XE_SQL_TEXT_HEAP_FREE                               |
| XE_SQL_TEXT_PREDICATE                               |
| XFILE_CACHE_XACT                                    |
| XFILE_DISPATCH                                      |
| XFILE_OBJECT_POOL                                   |
| XFILE_TASK_PROXY_ABORT                              |
| XLOG_BGTHREAD                                       |
| XLOG_BROKER_UNLINKING_IN_PROGRESS                   |
| XLOG_BROKER_WAIT_PAGE                               |
| XLOG_BROKER_WAITFULL                                |
| XLOG_BROKER_WAITMAXALLOWED                          |
| XLOG_EOL_REQUEST_NOTIFICATION                       |
| XLOG_GAPFILLERTHREAD                                |
| XLOG_LC_FWD_SEEDING                                 |
| XLOG_LC_REVERSE_SEEDING                             |
| XLOG_LC_SEEDING_VDL_ADVANCE                         |
| XLOG_POOL_FILLER_SLEEP                              |
| XLOG_POOL_QUERY_WAIT                                |
| XLOG_POOL_SHUTDOWN                                  |
| XLOG_SPACEMGR_INITIALIZE                            |
| XLOG_TOSFILE_GET_ITER_PROXY                         |
| XLOGREAD_SIGNAL                                     |
+-----------------------------------------------------+

Thanks for reading!

Going Further


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