### vault.wal.write_controller.p ((#vault-wal-write_controller-p))

Metric type | Value   | Description
----------- | ------- | -----------
gauge       | number  | Current proportional error value detected by the write controller.

The `vault.wal.write_controller.p` metric has limited production use, but Vault
developers may find `vault.wal.write_controller.p` useful for tuning or
debugging controller behavior.