![[wl_activity.png|64]]
Waiting on background OS processes performing maintenance functions.
![[ArchiverMain]]
![[AutoVacuumMain]]
![[BgWriterHibernate]]
![[BgWriterMain]]
![[CheckpointerMain]]
![[LogicalApplyMain]]
![[LogicalLauncherMain]]
![[LogicalParallelApplyMain]]
![[RecoveryWalStream]]
![[SysLoggerMain]]
![[WalReceiverMain]]
![[WalSenderMain]]
![[WalWriterMain]]