checkpoint_timeout

Parameter Type: Integer

Default Value: 5min

Range: 30s to 3600s

Minimum Scope of Effect: Cluster

When Value Changes Take Effect: Reload

Required Authorization to Activate: EPAS service account

Maximum time between automatic WAL checkpoints, in seconds. The default is five minutes (5min). Increasing this parameter can increase the amount of time needed for crash recovery.

Increasing checkpoint_timeout to a larger value, such as 15 minutes, can reduce the I/O load on your system, especially when using large values for shared_buffers.

The downside of making the aforementioned adjustments to the checkpoint parameters is that your system will use a modest amount of additional disk space, and will take longer to recover in the event of a crash. However, for most users, this is a small price to pay for a significant performance improvement.